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1. SO2V and SO2R


Previously, information about SO2V (Single Operator Two VFO) operation was somewhat randomly distributed between the SO2V and SO2R (Single Operator Two Radio) pages. We have combined the two topics into one main topic, while retaining information specific to one or the other in separate sections, in order to help users find what they need.

1.1. Basics

Many of the features of N1MM Logger+ work identically for SO2V and SO2R. They are discussed in this section. Unless specifically indicated, they will work in both SO2V and SO2R.

1.1.1. Entry Windows

In SO2V, if your radio simply has 2 VFOs, VFO A/B will be assigned to each of the two Entry Windows. If you have a radio with a sub-receiver, each of the receivers gets assigned to each of the Entry Windows. When developing the specs, we actually felt SO2V would be more widely used than SO2R.

N1MM Logger's SO2V interface is essentially identical to the SO2R interface, but with SO2V you are using a single radio. Two windows can be displayed in SO2V, one for VFO A & B. SO2V makes better use of the 2nd receiver now present in most high-end radios. With the 2nd receiver, you can be tuning the band while you are listening for a response to your CQ. Since you cannot listen on the sub-receiver while transmitting, SO2V is not as efficient as SO2R.

Entry windows can be placed anywhere on the screen. Typically people will position them similar to their equipment layout i.e. if the radios are positioned left/right, the windows are arranged reflect that. For those who stack their equipment top/bottom, you can position the screens so they logically mirror that radio setup too. Screen real estate is in short supply. To save space, you can shrink the Entry Windows compared to the default layout. Below is an example of the default Entry Window and a minimized version. Also the use of two monitors more screen real estate.

Entry Empty
Entry Minimized



To launch the 2nd Entry Window, hit the \ button.

Most people who are comfortable with N1MM Logger+ tend to use the reduced size Entry Windows for the second radio or VFO.

1.1.2. Core Features

All of the central features that are available to the single radio operator also work in SO2R/SO2V. For example, when tuning the band with either VFO, spots that are in the bandmap are automatically inserted into each call-frame (above the callsign in the Entry window) as you tune across the frequency of the spot. Hitting the Space bar will pull the callsign from the call frame into the callsign field. If a station calls you on the run VFO or radio, toggling back and forth between Entry Windows with the \ key or Ctrl Left/Right arrows will maintain the all of the information in each Entry Window until the respective stations are logged, wiped clean via Alt+W or Ctrl+W, or you QSY and the callsign is entered into the bandmap (if "QSYing wipes the call && spots QSO in bandmap" is implemented).

1.1.3. Entry Window Keyboard shortcuts

Many of these features are shared between SO2R and SO2V operation.

  • Backslash ( \ ) - Launches a second Entry Window if only one Entry window is open
    • One radio - Moves RX focus between the 2 VFOs on the radio
    • Two radios - Moves RX focus between the 2 radios
  • Pause - Move both TX and RX Keyboard focus to other radio (or other VFO in SO2V). If TX and RX focus are split when you hit pause, TX focus will move to where the RX focus is
  • Ctrl+Enter - SO2R only. Send next ESM state on alternate radio(assuming ESM turned on)
  • Ctrl+F1 to F8 - Send Fn message on alternate radio or VFO (CW only, currently).
  • Ctrl+Left Arrow - In SO2R move both Transmit and Receive/Keyboard focus to left radio, or in SO2V move both TX and RX/Keyboard focus to VFO A
  • Ctrl+Right Arrow - In SO2R move both Transmit and Receive/Keyboard focus to right radio, or in SO2V move both TX and RX/Keyboard focus to VFO B
  • Alt+F5 - Swap radio frequency, mode, and callsigns between VFOs (SO2V) or radios (SO2R). In SO2R, the receive focus changes to the non-active radio.
  • Alt+F6 - SO2R only. Identical to Alt+F5 except the receive focus does not change. No effect in SO2V
  • Ctrl+B - SO2R only. Toggles dueling CQs on and off. Dueling CQ's will send CQ alternately on each radio, with the RX focus moving to the Entry window that is not transmitting. If Dueling CQ's is turned on, both radios become run radios. A delay can be inserted between each CQ by setting the "Set Dueling CQ Repeat Time" under the SO2R menu. An icon denoting Dueling CQs Entry DuelingIcon appears in the entry windows when dueling CQs are actually being transmitted.

 Don't Be Labeled a Lid

The current consensus among contesters appears to be that the practice of alternating CQs on two frequencies in the same band is undesirable, because spectrum space is already scarce enough without multiple stations each taking up two Run frequencies. If your radio(s) can do it, better to reserve use of this feature for CQing on two different bands.
  • Backquote (grave accent or unshifted tilde key (~) - SO2R only. Toggle STEREO mode on/off, or toggle Auto/PTT modes with modified DXD . Notes: On US keyboards, the key we are talking about is the key just to the left of the number 1 key.
  • Ctrl+PgUp/Down - SO2R only. When changing band using Ctrl+PgUp/Down will skip the other radio's band
    • THIS IS NOT A SUBSTITUTE FOR HARDWARE LOCKOUT!






Single Operator 2 Radio (aka SO2R) is an operating technique that when done properly, can add many extra QSOs and multipliers to your log. This is accomplished by increasing your efficiency during slow times, for example, when you are CQing on one radio, but getting few answers. Efficiency is increased by listening on a 2nd radio while you are transmitting on the 1st radio. On the 2nd radio you are scanning the bands for needed QSOs and multipliers. If you find a new station to work on the 2nd radio, you leave it staged on the 2nd Entry Window until you get a free moment to work this station. Even adding a few QSOs an hour will greatly boost your score.

The philosophy for SO2R development is to allow any two radios to be used; they do not have to be identical. In its most simple form, two transceivers feed two separate antennas on two different bands. With sufficient attention to antenna separation and filtering, it is possible to do this without interference from a transmitting radio to a receiving radio. Many serious SO2R operators use identical radios to reduce the confusion factor, but having identical radios isn't necessary.

The receiver on one band is used to locate new contacts during the time that the transmitter on the other band is active. This can mean that you tune the 2nd radio while N1MM Logger sends CQ on the 1st radio. The most critical requirement for SO2R is automated transmission — if you have to speak into a microphone or squeeze a paddle while you tune the receiver you will not make the most of the second radio. It's easy to reach a level of mental fatigue while operating SO2R that results in an overall score reduction rather than helping your score.

If your radio is not supported by N1MM Logger, or it's an older radio with no computer interface, the radio can still be used, but you just don't get many of the advantages automated radio control offered by N1MM Logger.
A maximum of two radios are supported with N1MM Logger using a single computer. There is a workaround for 2-computer 2-radio SO2R, explained below.

For the new SO2R operator, we have 3 words for you: practice, practice, practice! SO2R is definitely a learned skill that takes time to learn, and even longer to master.


1.2. Entry Windows

Entry windows can be placed anywhere on the screen. Typically people will position them similar to their equipment layout i.e. if the radios are positioned left/right, the windows are arranged reflect that. For those who stack their equipment top/bottom, you can position the screens so they logically mirror that radio setup too.

Screen real estate is in short supply. To minimize screen real estate, you can shrink the Entry Windows compared to the default layout. Below is an example of the default Entry Window and a minimized version. Also the use of two monitors more screen real estate.

Entry Empty
Entry Minimized



To launch the 2nd Entry Window, hit the \ button.

Most people who are comfortable with N1MM Logger+ tend to use the reduced size Entry Windows for the second radio or VFO.

All of the features that are available to the single radio operator also work in SO2R/SO2V. For example, when tuning the band with the S&P VFO, spots that are in the bandmap are automatically inserted into each call frame (above the callsign in the Entry window) when you tune across the frequency of the spot. Hitting the Space bar will pull the callsign from the call frame into the callsign field. If a station calls you on the run radio, toggling back and forth between Entry Windows with the \ key or Ctrl Left/Right arrows will maintain the all of the information in each Entry Window until the respective stations are logged, wiped clean via Alt+W or Ctrl+W, or you QSY and the callsign is entered into the bandmap (if "QSYing wipes the call && spots QSO in bandmap" is implemented).

1.3. Entry Window Features

Many of these features are shared between SO2R and SO2V operation.

  • Backslash ( \ ) - Launches a second Entry Window if only one Entry window is open
    • One radio - Moves RX focus between the 2 VFOs on the radio
    • Two radios - Moves RX focus between the 2 radios
  • Ctrl+Enter - Send next ESM state on alternate radio or VFO (assuming ESM turned on)
  • Ctrl+F1 to F8 - Send Fn message on alternate radio or VFO.
  • Ctrl+Left Arrow - In SO2R move both Transmit and Receive/Keyboard focus to left radio, or in SO2V move both TX and RX/Keyboard focus to VFO A
  • Ctrl+Right Arrow - In SO2R move both Transmit and Receive/Keyboard focus to right radio, or in SO2V move both TX and RX/Keyboard focus to VFO B
  • Pause - Move both TX and RX Keyboard focus to other radio (or other VFO in SO2V). If TX and RX focus are split when you hit pause, TX focus will move to where the RX focus is
  • Alt+F5 - Swap radio frequency, mode, and callsigns between VFOs (SO2V) or radios (SO2R). In SO2R, the receive focus changes to the non-active radio.
  • Alt+F6 - Identical to Alt+F5 except the receive focus does not change. No effect in SO2V
  • Ctrl+B - Toggles dueling CQs on and off. Dueling CQ's will send CQ alternately on each radio or VFO, with the RX focus moving to the Entry window that is not transmitting. If Dueling CQ's is turned on, both radios become run radios. A delay can be inserted between each CQ by setting the "Set Dueling CQ Repeat Time" under the SO2R menu. Dueling SSB and CW CQ's are supported too. An icon denoting Dueling CQs Entry DuelingIcon appears in the entry windows when dueling CQs are actually being transmitted.

 Don't Be Labeled a Lid

The current consensus among contesters appears to be that the practice of alternating CQs on two frequencies in the same band is undesirable, because spectrum space is already scarce enough without multiple stations each taking up two Run frequencies. If your radio(s) can do it, better to reserve use of this feature for CQing on two different bands.
  • Backquote (grave accent or unshifted tilde key (~) - Toggle STEREO mode on/off, or toggle Auto/PTT modes with modified DXD . Notes: On US keyboards, the key we are talking about is the key just to the left of the number 1 key.
  • Ctrl+PgUp/Down - When changing band using Ctrl+PgUp/Down will skip the other radio's band
    • THIS IS NOT A SUBSTITUTE FOR HARDWARE LOCKOUT!
  • Ctrl+Shift+K - FocusOther, another method of focus control (Focus on Other Radio). When FocusOther is active, the RX focus is automatically shifted between the "Run" radio and the "S&P" radio, depending on whether the Run radio is transmitting. When the Run radio is transmitting, RX focus is shifted to the S&P radio. When the Run radio stops transmitting, RX focus shifts back to the Run radio, unless an unworked callsign has been entered in the S&P entry window. This allows a callsign to be entered in the S&P radio Entry Window while CQ is being sent on the Run radio.
  • Ctrl+Shift+L - This enables/disables the use of {CTRLFx} in function key macros. {CTRLFx} is a convenient way to automatically send a function key on the alternate radio. For example, by programming your S&P F4 key to "* {CTRLF1}", your call will be sent on the S&P radio, immediately followed by your CQ message on the Run radio.





Single Operator 2 Radio (aka SO2R) is an operating technique that when done properly, can add many extra QSOs and multipliers to your log. This is accomplished by increasing your efficiency during slow times, for example, when you are CQing on one radio, but getting few answers. Efficiency is increased by listening on a 2nd radio while you are transmitting on the 1st radio. On the 2nd radio you are scanning the bands for needed QSOs and multipliers. If you find a new station to work on the 2nd radio, you leave it staged on the 2nd Entry Window until you get a free moment to work this station. Even adding a few QSOs an hour will greatly boost your score.

The philosophy for SO2R development is to allow any two radios to be used; they do not have to be identical. In its most simple form, two transceivers feed two separate antennas on two different bands. With sufficient attention to antenna separation and filtering, it is possible to do this without interference from a transmitting radio to a receiving radio. Many serious SO2R operators use identical radios to reduce the confusion factor, but having identical radios isn't necessary.

The receiver on one band is used to locate new contacts during the time that the transmitter on the other band is active. This can mean that you tune the 2nd radio while N1MM Logger sends CQ on the 1st radio. The most critical requirement for SO2R is automated transmission — if you have to speak into a microphone or squeeze a paddle while you tune the receiver you will not make the most of the second radio. It's easy to reach a level of mental fatigue while operating SO2R that results in an overall score reduction rather than helping your score.

If your radio is not supported by N1MM Logger, or it's an older radio with no computer interface, the radio can still be used, but you just don't get many of the advantages automated radio control offered by N1MM Logger.
A maximum of two radios are supported with N1MM Logger using a single computer. There is a workaround for 2-computer 2-radio SO2R, explained below.

For the new SO2R operator, we have 3 words for you: practice, practice, practice! SO2R is definitely a learned skill that takes time to learn, and even longer to master.


1.4. SO2V Operation

    1.4.1. Advanced SO2V for Radios with Separate Sub-Receivers

    Additional SO2V features are available for radios that have dual receivers or Main/Sub receive. As of the last manual update the complete radio list is: IC-756/Pro/Pro2/Pro3,IC-7600, IC7800, IC-781, Orion/2, K3, KX3, TS-990, FTdx9000, FTdx5000, FT2000, FT1000/D/MP/MKV/MPSteppIr, and the Flex Radios.

    In SO2V mode, the \ key changes the RX focus to the Sub receiver and enables the Sub audio if necessary (Orion). To use this feature
    set the CQ repeat time a longer than normal and start a repeating CQ using VFOA (Main). If nobody answers, press the \ key to enable the Sub receiver and tune the band. Pressing \ again will change the RX focus back to VFOA and turn off the Sub if Config > Dual Rx Always On is not checked. With Icom radios that only have one VFO knob, pressing the \ key also changes the knob association to the Sub VFO.

    If you do not find someone to call before the CQ timer expires, the program will call CQ again on VFOA. With RX focus on VFOB (Sub) Entry window, typing a letter will cancel the repeating CQ running on VFOA.

    Pressing a function key to call someone or send an exchange will automatically switch the TX focus to the proper VFO prior to transmitting. Some radios switch faster because they require fewer configuration commands. If the RX focus is on then VFOB (Sub) Entry window and the CQ repeat needs to start again on VFOA, simply press the CTRL+CQ-Key. The program default for the CQ-key is F1 and this is set in Configurer > Function Keys tab.

    If someone answers your CQ while the RX focus is on VFOB (Sub), press the \ key to change the RX focus prior to entering the callsign. If you want to change the TX and RX focus together press the PAUSE key.

    There is special functionality associated with the Ctrl+Alt+D and Grave accent keystrokes for the SO2V radios. See the appropriate radio model in the Supported Radios section.

    1.4.2. Approximating the Capability with Radios that do not have a Sub-Receiver

    Some basic SO2V functionality has been implemented for all VFOA/B radios (those without a sub-receiver).

    You may find the CTRL+Shift+Up/Dn command useful. It programs VFOB with the next spot Up or Dn in the Bandmap. When you have time to listen or call the station, press the PAUSE (or Ctrl+RightArrow) key. To return to your Run frequency, press the PAUSE (or LeftArrow) key, it won't change your RUN frequency. Instead, the program will let you know that split is necessary with a status message at the bottom of the Entry window.

    See the Supported Radio section of the manual for radio specific information regarding general and SO2V operation.

    1.4.3. More advice on using SO2V - from VE3KI

    SO2V is a kind of halfway point between SO2R (single-op two radios) and SO1V (standard single-receiver operation). The most efficient of the three is SO2R. The main advantage of SO2R over traditional one-radio one-VFO operation (SO1V) is that you can be listening in one QSO while you are transmitting in a different QSO. Ideally, you could be doing two QSOs at once on different bands even though you never have more than one transmitted signal at a time, interleaving between the two and doubling your overall speed (at least when things are going very well). This is simply not possible with only one radio, even if it has two receivers, but SO2V is an attempt to make use of the second receiver to gain at least some of the advantages of SO2R.

    In SO2V, you are deaf whenever you are transmitting, so the key advantage of SO2V over SO1V is to be able to receive two signals in parallel. You don't conduct two QSOs at once, but you can at least determine whether there is someone worth working on either of two frequencies at once. That would seem to require two receivers, one receiver in each ear, not just two VFOs. You need to be able to tell which signal is coming from which receiver (e.g. stereo headphones).

    I am by no means all that proficient, but the main way I use SO2V is CQing on one frequency while S&Ping elsewhere in the same band. Again, more to get this out of the way than to describe SO2V, note that if it's a good run, people are coming back to you right away and you don't have time for SO2V techniques. In fact, what you may need is LOGTHENPOP to cope with multiple callers, and when you are doing this in CW or SSB you don't need the distraction of a second receiver. Instead, you would leave the second receiver turned off while things are going this well.

    However, if things slow down, as they often do late at night or late in the contest, then while you are CQing on VFO A and find you have to send CQ several times before anyone shows up calling you back, you can turn your second receiver on and start using it to S&P up and down the band while you keep on CQing.

    After your transmitter stops at the end of the CQ message, in SO2V you have two receivers both active. One is on your transmit frequency, listening for someone calling you back. The other one is somewhere else on the band, looking for a station CQing that you can call.

    Suppose: (1) no-one answers your CQ (IMHO your first duty is always to answer someone who answers your CQ); and (2) you find someone on VFO B that you haven't worked yet, and they are calling CQ or just about at the end of a QSO. In that case, what you can do is switch to the VFO B entry window (with the mouse if you are mousing, e.g. in RTTY, or with the \ key if you are keyboarding) and have (or try to have) a QSO on the VFO B frequency. Once that QSO is completed (or as soon as the other guy comes back to someone else instead of you), you switch back to VFO A, hope that someone hasn't taken over your run frequency while you were away, and send a CQ again to repeat the whole process.

    In SO2R, you can keep listening to the other station on the S&P VFO even while you are transmitting on your CQ frequency in between transmissions on the S&P radio, but in SO2V you have to stay on the S&P frequency for the entire duration of the S&P QSO, which means you run a significant risk of losing your run frequency. You have to weigh the risk of this happening against the benefit of picking up the S&P QSO during a dead period on your run frequency.

    You will probably want to turn autoCQ off while you are doing this. If I leave autoCQ on, inevitably I find that the transmitter fires up at exactly the wrong time, just before the other station sends his call sign, or when his QSO is ending and it's time to drop in my call sign on the VFO B frequency.

    You can also use SO2V to S&P with two receivers at once. Tune one up the band and the other down the band at the same time, and simply decide which one to use based on where you hear a new station to work first. You can use the \ key to jump back and forth between the two entry windows.

    SO2V is more productive if you are in the Assisted class. You can use spots from the cluster or RBN to guide where you tune with VFO B, instead of just tuning up and down the band. Instead of turning the VFO B tuning knob to find the next station to work, you can jump VFO B to the next workable spotted station using Ctrl+Shift+Up/Down arrows. This greatly increases the odds of quickly finding someone to work on VFO B versus just randomly tuning and screening out the ones you have previously worked.

    You can also use the cluster this way in SO1V with only one receiver, but with a significant disadvantage. Once you tune away from your run frequency after listening for someone calling you back, you then often have to wait some more listening on the second frequency until the caller is at the right point for you to call him. With two receivers, you can time your CQs on VFO A so that you don't have to waste time listening first on VFO A and then on VFO B; you can listen to both at the same time and line up the times so you either respond to a caller on VFO A if one is there, or else send your call to a CQer on VFO B, in this way minimizing the time you are away from your run frequency.

    To set up for SO2V with a dual-receiver radio, you select the SO2V button in the Configurer, and in the Config menu you check the "Dual Rx always on" menu item. In RTTY, you can set up the two DI windows with two separate interfaces listening on different channels of the sound card and just leave both receivers on all the time. In CW/SSB, you will probably want to learn how to use the ` and Ctrl+Alt+D keys (see the documentation on Supported Radios) to turn the second receiver on and off.

    I am probably missing some important things, but this is how I use SO2V with my dual-receiver K3.

    1.4.4. SO2V RTTY with MMTTY

    Instructions for setting up two copies of MMTTY for use in SO2V (Note: there are more detailed instructions on setting up for digital modes in the Digital Modes section - this section focuses on the SO2V aspects):

    • Create two separate folders for the two copies of MMTTY. This allows each copy to have its own configuration
    • Copy the MMTTY.exe, MMTTY.ini and UserPara.ini files (plus extfsk.dll if you use EXTFSK, or extfsk64.fsk if you use EXTFSK64) from the main MMTTY program folder into each of the two folders you will use for SO2V
    • Start N1MM Logger and open the Configurer (Config > Configure Ports, Audio, Mode Control, Other)
    • Select the Hardware tab
      • Select the SO2V option
      • This next step is optional for many users, but mandatory for some. If you are using serial ports for PTT and/or FSK from MMTTY, you may wish or need to check the Digital check box beside the ports used by the two copies of MMTTY. This step is necessary if you use the same port for CW or PTT keying from N1MM Logger in CW or SSB modes; if the only place you use a port is from MMTTY, the step is optional; and if the port number is higher than 8, you have to skip this step and perform all of the setup for this port within MMTTY.
        • Note that you must use either two serial ports, one for each copy of MMTTY, or no serial ports (AFSK; PTT controlled either by the main N1MM Logger program or in hardware, e.g. PTT via radio command or by VOX). If you are using two serial ports, their FSK keying outputs must both be connected to the radio's FSK input
        • Click on the Set button for the port you will use with VFO A and set the Radio Nr and the Dig Wnd Nr both to 1
        • Click on the Set button for the port you will use with VFO B and set the Radio Nr to 1 and the Dig Wnd Nr to 2
    • Select the Digital Modes tab
      • Under Digital Interface 1, TU Type, select Soundcard. Similarly for Digital Interface 2
      • Under DI-1 MMTTY Setup, select AFSK or FSK as appropriate for your setup and set the MMTTY Path to point to the copy of MMTTY.exe in the first folder
      • Under DI-2 MMTTY Setup, select AFSK or FSK as appropriate and set the MMTTY Path to point to the copy of MMTTY.exe in the second folder (this must be a different copy from the one in the DI-1 MMTTY Setup path)
    • Close the Configurer
    • Open the Digital Interface 1 Window (Window > Digital Interface menu item in the main VFO A Entry window). Make sure the program is in RTTY mode (if necessary, type RTTY into the Entry Window callsign box and press Enter)
      • If an MMTTY window does not appear (e.g. if you see an MMVARI window instead), then in the DI-1 Window select the Interface > MMTTY menu item to open the MMTTY window
      • Select the Setup > Settings menu item in the DI-1 window
        • Under Preferred RTTY Interface (lower left), select MMTTY
        • Under Alignment Frequency (lower right), enter your Mark audio frequency (e.g. 2125)
        • Under MMTTY Window Settings, select either Normal or Control Menus, in order to have easy access to the MMTTY setup window
        • Click on Save Configuration
      • In the MMTTY window for the first copy of MMTTY (the title bar reads RTTY Engine 1), select the Option(O) > Setup(O) menu item
        • Select the TX tab and set the PTT & FSK port you will be using for the VFO A copy of MMTTY (this is the port with Dig Wnd Nr = 1 in the Configurer). If you are using AFSK and doing PTT from the main N1MM Logger program, set this port to None
        • Select the SoundCard tab (MMTTY version 1.66 or newer) and select the Reception sound card you will use with VFO A. If you are using AFSK, you must also select the Transmission sound card
        • Under the Misc tab, select the channel (left or right) under Source (usually the left channel for VFO A )
        • Close the MMTTY Setup window
    • If the second Entry window is not open, open it by pressing the Pause key, the backslash (\) key or Ctrl+Right Arrow
    • Open the Digital Interface 2 Window (Window > Digital Interface menu item in the VFO B Entry window). Make sure the program is in RTTY mode for VFO B (if necessary, type RTTY into the VFO B Entry Window callsign box and press Enter)
      • If an MMTTY window does not appear (e.g. if you see an MMVARI window instead), then in the DI-2 Window select the Interface > MMTTY menu item to open the MMTTY window
      • In the MMTTY window for the second copy of MMTTY (the title bar reads RTTY Engine 2), select the Option(O) > Setup(O) menu item
        • Select the TX tab and set the PTT & FSK port you will be using for the VFO B copy of MMTTY (the port with Dig Wnd Nr = 2 in the Configurer); this must be a different COM port from the one that is used for VFO A. If you are using AFSK and doing PTT from the main N1MM Logger program, set this port to None
        • Select the SoundCard tab (MMTTY version 1.66 or newer) and select the Reception sound card you will use with VFO B. If you are using AFSK, you must also select the Transmission sound card (in SO2V this will likely be the same as the Transmission sound card used for VFO A)
        • Under the Misc tab, select the channel (left or right) under Source (usually the right channel for VFO B )
        • Close the MMTTY Setup window


    1.5. SO2R - Single Operator Two Radio Operation

      1.5.1. Two-Computer SO2R

      Some operators, particularly on RTTY, prefer to use separate computers for SO2R. This is not explicitly supported by N1MM Logger, but there is a way.

      First, be sure both computers are running the same version of N1MM Logger. Turn on Networked-Computer mode (Config >Networked-Computer Mode), and configure the network between your computers as explained in the section on Network Setup and Configuration. Then set up your contest class as Multi-One.

      Set your lockout style under Config >Multi-User Tools as explained here

      • First One Wins
        • UNCHECK >Multi-User Tools >Force Other Station to Stop Transmitting When I Transmit
        • UNCHECK >Multi-User Tools >Block My TX Only if Other Stn Transmitting on Same Band & Mode (Multi-One)
      • Last One Wins
        • CHECK >Multi-User Tools >Force Other Station to Stop Transmitting When I Transmit is CHECKED
        • UNCHECK >Multi-User Tools >Block my TX Only if Other Stn Transmitting on Same Band & Mode (Multi-One)


      Please note that a number of N1MM Logger's special SO2R features cannot be used in this style of SO2R operation,. The list includes Ctrl+Fx (send Fx on the opposite radio), {CtrlFx} (the same as a macro), dueling CQs, and FocusOther. All of these require both radios to be connected to the same computer. Serial numbering, if used, will conform to the Multi-Single rules for the contest in question.

      Don't forget to change your entry class back to Single Op or Single Op Assisted in the Contest Setup window before you generate your Cabrillo file.

       Users Please Note

      Please be aware that the developers will not implement Feature Requests or respond to Bug Requests that result from 2-computer SO2R's not conforming to single-computer SO2R expectations.

      1.5.2. Supported Features

      N1MM Logger supports all of the features you would expect from any world-class SO2R software. In addition, there are a lot of unique features:

      • Two Entry windows are displayed that are fully interchangeable in functionality (windows are not dedicated to a specific task)
      • Running and S&P modes are maintained for each SO2R Entry window, such that the 2 windows can be used for
        • Running / S&P
        • S&P / Running
        • S&P / S&P
        • Running / Running
      • Entry windows can be arranged on screen as desired: typically left/right, or top/bottom, to represent physical station layout
      • Each Entry Window has a frequency readout in the top pane
      • 'LEDs' identify which radio has focus. The sending radio has a red LED indicating TX Focus, a green LED identifies the radio that has RX and Keyboard focus (combined)
      • Background colors of the entry field change color depending on whether that radio is running or S&P: white = run; canary = S&P
      • Ability to change frequency of inactive radio from the active radio. Use the / before entering the frequency in the callsign field to enter frequency for other radio/VFO
      • Supports Enter Sends Messages Mode (ESM) on both windows
      • Typing a call in inactive radio Entry window does not abort sending on the active radio
      • Hitting Escape stops sending on either VFO or radio, but does not change keyboard focus
      • Changing transmit focus (for any function) stops sending before switching and sending on alternate radio
      • Ctrl+function keys and Ctrl+Enter sends messages on alternate radio (Concept is Ctrl = Alternate radio control)
      • "Hotkey's" for specific tasks and sending on alternate radio
      • All Key Assignments work on both radios (unless otherwise specified)
      • Supports Top Ten DX Doubler, WX0B Station Master, Microham MK2R, YCCC SO2R, and other SO2R controllers.
      • Support SO2R without interfaced radios.
      • Dueling CQ's will send CQ alternately on each radio (Ctrl+B)
        • If dueling CQ's is enabled, and CQ sent then both radios become Run radios
        • Ctrl+F1 or Ctrl+Enter will not start Dueling CQ
        • Dueling SSB and CW CQ's (different modes in each Entry window) are supported
        • When you disable Dueling CQs, the pre-existing SO2R options are restored
      • A SO2R software radio lockout for is implemented
      • CQ-repeat is terminated when a message is sent on the other radio
      • The macro {JUMPRX} changes the receive focus to the other input window
      • Supports 2 radios - No support for 3 or more radios
      • Support SO2R with zero, one or two sound cards (5$ SO2R)
      • When changing band using Ctrl+PgUp/Down key will skip the other radio's band
        • THIS IS NOT A SUBSTITUTE FOR HARDWARE LOCKOUT!!
      • The sent CW will echo in the status bar of the Entry Window (only when in SO2R)
      • During VOX operation, in "$5 SO2R" operation the TX audio should will track the TX focus all the time



      1.5.3. The SO2R Dots (LEDs)


      On the Entry Window a green and/or a red dot (LED) will be shown. The LEDs are visual aids that help you easily identify what is happening on each radio. This is part of N1MM's continuing philosophy of letting the operator easily know what's happening at any give time.

      The green LED indicates that the VFO or radio has receive/entry focus and the red LED indicates that VFO has transmit (TX) focus. In addition, the red TX LED changes between dark red (not transmitting) and yellow (VFO/radio is transmitting).

      1.5.3.1. Dot/LED Colors Used:

      Green dot/LED - This VFO/Radio has receive (RX) and entry focus. RX and entry focus are always together.

      • Receive focus can be toggled between the VFOs/radios by
        • using a mouse to click on the background of one of the two Entry windows
        • pressing the \ key (backslash)
      • To move both Transmit and Receive focus
        • Press Pause or Ctrl+Left-Arrow / Ctrl+Right-Arrow to move both foci between the left and right radios.

      Red dot/LED - This VFO/Radio has transmit (TX) focus. This means that the radio or VFO either is transmitting (lighter orange-red color) or was the last to transmit and will be the one that transmits if you transmit by means other than pressing a function key (darker red color). When the other window has entry focus and you press a function key to send a stored message, the transmit focus shifts to that radio as soon as the function key is executed.

      • Pressing Pause or Ctrl+Left-Arrow / Ctrl+Right-Arrow will move both foci between radios. If the foci are split, the first press of Pause moves the Transmit focus to the radio with the receive focus; thereafter, both foci will move together each time it is pressed.
      • When transmitting the TX focus can not be changed.

      1.5.4. Key Assignments (unique to SO2R)

       "Sticky" options

      The Focus Other (Ctrl+Shift+K) and Ctrl+Fx settings, whether controlled through keyboard shortcuts or through the SO2R sub-menu of the Configurer, are "sticky" - that is they are remembered the next time the program is opened. This can surprise you if you don't remember having set them.

      1.5.4.1. Bandmap Features

      • Shift+Click on frequency (SO2R only) - Jump to that frequency on the inactive radio, without changing TX or RX focus. This allows you to be active and sending on one radio and change the frequency on the other radio without making it the active radio.
      • Shift+Click on bandmap callsign (SO2R only) - Send the frequency to the inactive radio and place the callsign on the other radio's callsign frame, without making it the active radio.

      1.5.4.2. Using SO2R Key Assignments

      Backslash ( \ ) - Once you have launched your second Entry Window, the \ key will likely be your most widely used key in SO2R. The \ key will move RX and Entry focus between Entry Windows A & B (often referred to as Radio 1 & Radio 2 respectively). When using the \ key to control RX focus, you really don't have to worry where TX focus is. By using the \ key to control only RX focus, when you hit a Fn key or Enter (using ESM), the TX focus will move to where the RX focus is, and send the corresponding message.

      Example: You are CQing on Radio 1, and S&Ping on Radio 2. Both RX and TX focus start off in your Run Entry Window (Radio 1 in this example). You are S&Ping on Radio 2, and you hear someone on the S&P radio you want to look up in your Check Window. Hit the \ key to move RX focus to the S&P Entry Window. You type in the call, and you need it, and are just waiting for a good time to send your call. If no one is answering your CQ on the Run Radio, just hit the Enter Key (assuming you are using ESM), and the TX focus will move from the Run Radio to the S&P radio (Radio 2), and send your callsign (actually the first ESM message in the S&P sequence). If the station comes back to you, then hit Enter again to send your exchange, and you just completed a S&P QSO. Now move the RX focus with the \ key to the Run radio, or just leave it in the S&P Entry Window if S&P is more productive.

      Now let's assume in the middle of the S&P QSO, someone answers your CQ on Radio 1. Your exchange just happens to be sending on the S&P radio. To copy the call on the Run Radio (while your exchange is being sent on the S&P radio), hit the \ key to move RX focus to the Run Radio, and type his call in the Run Entry Window. Assuming your exchange is finished sending on Radio 2, just hit Enter again, and the TX focus will move back to the Run Radio, and the program will send his call and your exchange on the Run Radio. You now have QSOs going on both radios! Just move RX focus as needed to send/copy on what ever radio you need. This is easier said, than done during a contest !

       Tracking TX Focus

      In the above examples, you never have to control where TX focus is, since TX focus always moves automatically to where the RX focus is when Fn or Enter (ESM) is used. This should be your standard operating mode, as you only need to worry about using a single key to do most of your navigation between the two Entry Windows.


      Ctrl+Enter, or Ctrl+Fn - Using these commands will send the corresponding message on the alternate radio; with the alternate radio defined as the radio that does not have RX focus. Using Ctrl+Fn (or Ctrl+Enter) will only move the TX focus to send the message - RX focus will stay in it's current location. Once the message is sent, TX focus will remain on the alternate radio. This is done by design.

      The most common scenario would be if you are CQing on Radio 1, but you are not getting callers. You hit the \ key to copy a callsign on the S&P radio. Without moving the RX focus from the S&P radio, at some point you will probably want to send another CQ on the Run Radio. You do this by hitting Ctrl+F1 or Ctrl+Enter. You will also likely use these commands if you have a QSO in progress at the same time on both the Run and S&P radio. The easiest way to send a message at the right time on the other radio is to use these commands, and leave RX focus where it is. Alternatively, you can program function keys with the {CTRLFx} macro to send messages to the other radio.

      Pause Key - If both TX and RX focus are in the same Entry Window, hitting Pause will move both TX and RX focus to the other radio. If TX and RX focus are split between the Entry Windows, the pause key will move TX focus to where RX focus is. Mostly you will use this key in order to get your foci back in sync.

      Ctrl+Right Arrow and Ctrl+Left Arrow - These commands will force both TX and RX focus to the right or left radio.

      Ctrl+B - Toggle Dueling CQ's.

      {CTRLFn} macro - This macro allows the user to send on the other radio.

      • Make sure that "Toggle {CTRLFx}" macro is checked on in the Configurer SO2R submenu (or use Ctrl-Shift-L to enable/disable the use of {CTRLFx} macros. When disabled, the {CTRLFx} macro is ignored.
      • Thus, a CW Button might look like: "tu EXCH{CTRLF9}" Where F9 on the other radio is set to send a CQ.
      • Example: If your entry focus is on the S&P radio and you manually press Ctrl+F1, the program will send F1 on the OTHER radio. That's all the {CTRLFx} macro does. For a simple test, modify your S&P F4 key to read *{CTRLF1}. Now, when you press that key, the program sends your call on the S&P radio and then sends the contents of F1 on the Run radio. In a practical situation, you would probably not want to send a full-length CQ while trying to work someone on the S&P radio, because that will nearly always require you to interrupt it before it is done. So the idea of {CTRLFx} is that you can stash a short CQ (like "N1MM test"} in, for example, Run F12. Then make S&P F4 read "* {CTRLF12}. Now when you press F4 on the S&P radio, it will send your call, and immediately switch to the Run radio and send F12, that very short CQ. Should help hold your frequency.
      • Another way to use this: Make your S&P F2 read, for example, 5NN14{CTRLF1}. Then when you press F2 or Enter to send your exchange and/or log the S&P QSO, the program will automatically begin a CQ on the Run radio as soon as that is done.

      1.5.5. Mouse Assignments

      • Left mouse and Right mouse buttons_
        • On an empty space in one of the two Entry windows, these mouse buttons change the Receive focus to that radio/VFO

      1.5.6. SO2R Menu

      • SO2R
        • Dueling CQ's Ctrl+B - will send CQ alternately on each radio
        • Set Dueling CQ Repeat Time
        • Focus on Other Radio - A method of focus control, preferred by many contesters. When FocusOther is active, the RX focus is automatically shifted between the "Run" radio and the "S&P" radio, depending on whether the Run radio is transmitting. When the Run radio is transmitting, RX focus is shifted to the S&P radio. When the Run radio stops transmitting, RX focus shifts back to the Run radio, unless an unworked callsign has been entered in the S&P entry window. This allows a callsign to be entered in the S&P radio Entry Window while CQ is being sent on the Run radio.
        • FocusOther Always Swap - Used in conjunction with Focus on Other Radio. When FocusOther Always Swap is enabled, RX focus will always shift back to the Run radio when the Run radio stops transmitting.
        • Toggle CTRLFx Macro - This enables/disables the use of {CTRLFx} in function key macros.
        • TX Lockout ((Digital) - Select a lockout item ((Digital modes only)
          • Multi-TX - This is the default setting. Start CQ on radio A, Start CQ on radio B, both are active. (no lockout)
          • First one wins - Start CQ on radio A, pause, Start CQ on radio B. The radio B CQ is ignored since radio A is already active, so if you press a F-key for the second radio while radio1 is transmitting, the radio B F-key is ignored
          • Last one wins - Start CQ on radio A (CQ starts), pause, Start CQ on radio B. The CQ on radio A will aborted and the CQ on radio B will start so if you press a F-key for the second radio while radio A is transmitting, the radio A transmission is interrupted and radio B transmits

      1.5.7. Software Setup

      Setting up SO2R and SO2V starts in the Config menu:

      • Config > "Configure Ports, Telnet Address, Other" > Hardware Tab
      Then if SO2R:
      • Set up radios
      • Set up keying if necessary (Serial port, LPT port or Winkeyer)
      • Click SO2R button
      • Click OK to close out.
      • Launch N1MM Logger, set up contest etc.
      • If 2nd Entry Window is not shown, hit the \ key (backslash key)
      • SO2R - 1 computer radio + 1 manual radio (so two radios)
      • SO2V - 1 computer radio with 2 VFOs and no manual radio (so one radio)
      Then if SO2V:
      • Set up radio
      • Set up keying if necessary (Serial port, LPT port or Winkeyer)
      • Click SO2V button
      • Click OK to close out.
      • Launch N1MM Logger, set up contest etc.
      • If 2nd Entry Window is not shown, hit the \ key (backlash key)

      Selected Mode
      Radios Attached
      Choices
      Selection
      SO2R
      none
      SO2R - Left Manual, Right Manual
      Automatically selected
      SO2R
      1
      (Kenwood)
      sO2R - Left Manual, Right Kenwood Com1
      SO2R - Left Kenwood Com1, Right Manual
      Select one
      SO2R
      2
      (Kenwood & FT847)
      SO2R - Left Kenwood Com 1, Right FT847 Com 2
      SO2R - Left FT847 Com1, Right Kenwood Com 2
      Select one
      SO2V
      1
      (Kenwood)
      SO2V - Kenwood
      Automatically selected

      1.5.7.1. LPT Keying

      When operating SO2V, and using LPT port keying, the Radio Nr in the LPT port configuration must be set to Both.

      When operating SO2R, and using a single LPT port for keying, the Radio Nr in the LPT port configuration must be set to Both. This configuration will require an external box to switch the keying line between the two radios. The external box can be controlled using LPT pin 14.

      When operating SO2R and using a separate LPT port for each radio, the Radio Nr in each LPT port configuration must be set to The corresponding radio, 1 or 2.

      1.5.7.2. Winkeyer and WinkeyerUSB keying

      When operating SO2R, and using Winkeyer, the Radio Nr in the Winkeyer COM port configuration must be set to Both.

      When operating SO2R, and using a single Winkeyer port for keying and PTT, the Radio Nr in the Winkeyer COM port configuration must be set to Both. This configuration will require an external box to switch the keying line between the two radios. The external box can be controlled using LPT pin 14.

      When operating SO2R and using Winkeyer's 2nd CW and PTT Outputs (available in later models), the Radio Nr in the Winkeyer COM port configuration must be set to Both.

      1.5.8. SO2R Radio Support

      All supported radios will work with SO2R. N1MM Logger will allow you to use any combination of computer controlled and non-computer controlled radios. If you use a radio that is not supported or has no radio control, do not set up a radio COM port. You only set up that information when you have a computer controlled radio.

      1.5.9. Using External SO2R Controllers

      N1MM Logger is compatible with most older hardware SO2R controllers using the LPT port such as the Top Ten Devices "DX Doubler", and the Array Solutions "SO2R Master". These products will automatically switch keying, PTT and audio lines between radios. New products like the microHAM MK2R can be fully controlled via USB or via an LPT port. The EZmaster from Ham Radio Solutions is only supported using its LPT port and not its USB port.

      Controllers using the LPT port will require a straight-through DB-25 cable from your LPT port of your computer to the input DB-25 connector.. For hooking up the rest of the keying and audio lines, consult their respective manuals. All products use the same pin-outs on the LPT port.

      To get N1MM Logger to correctly key and control these devices, you need to set up your keying as follows:

      1.5.9.1. LPT Keying with External SO2R Controllers Using LPT Port

      • Open Config >Configure Ports, Mode Control, Other >Hardware tab
      • Check LPT keying box - check only one LPT box unless using another one for antenna selection control
      • Click on the corresponding "Set" button for the LPT port
      • Click on "Radio Nr" drop down box and select "Both"
      • Click on OK to set configuration

       Modifying the DX Doubler

      There were a couple of errors on the DX-doubler PC board. Go to: this site to see the DX Doubler modifications.

      XXXXX

      1.5.9.2. Using Winkeyer and WinkeyerUSB

      The original Winkeyer, used a RS-232 COM port, and is not a USB device. Winkeyer has an internal pin 3 output, which is normally CW for 1 radio, and an internal pin 5 which is normally PTT for a single radio. Under N1MM Logger software control, pin 3 can set for Radio 1 CW output and Pin 5 can be set for Radio 2 CW output. The virtual serial port assigned to the Winkeyer USB device should have the "Hardware" tab "Set" and Winkeyer checked and Radio Nr set to 'Both'. Then go to the "Winkeyer" tab and set Pin 5 function to "2nd CW"

      The "K" output on the Winkeyer board goes to Radio 1 CW and the "P" output goes to Radio 2 CW. N1MM Logger takes care of all the switching provided you activate the proper radio.

      The WinkeyerUSB (sometimes called "Winkeyer 2") has separate CW and PTT outputs for each radio. The 2nd radio CW is enabled from the Winkeyer tab "Use 2nd Output".

      1.5.10. SO2R Using the DX Doubler

      1.5.10.1. Setting Internal DXD Jumpers to Enable Stereo Feature

      Thanks to W4NZ, long-time N1MM and DXDoubler user, for the following:

      Here is my baseline configuration - the one that has been working for me in contests for quite a while. This is also compatible with all the SO2R features in N1MM. Control of the DXD is from a hardware LPT port.

      Jumper 1: 2-3
      Jumper 2: 5-6
      Jumper 3: 9-10

      Coincidentally, these are the same as the jumper settings for the "NA" software as shown in the DXDoubler manual.

      If you change the jumper settings to those shown in the DXD manual for CT/TR/WL,

      Jumper 1: 1-2
      Jumper 2: 4-5
      Jumper 3: 8-9

      then testing the SO2R features, N1MM Entry window focus moves to the correct radio just as it should but the DXD does not automatically switch radios (RX audio/TX focus) to follow the window focus. However, the DXD can be switched manually by using the PAUSE key or CONTROL + Left/Right Arrow. The Backslash key (\) also moves focus without switching the DXD.

      With the NA jumper settings, now you can use the "tilde" key (~/`) to toggle stereo audio (Left radio-left ear/Right radio-right ear) on and off.

      You can use the macros {STEREOON} {END} {STEREOOFF} in Function Key Messages) to switch the audio automatically according to the operator's preference. Refer to this page for more details.

      Example for F1 - CQ Message: {STEREOON} CQ TEST * * TEST {END} {STEREOOFF}. This sequence will turn on Stereo during transmission of the CQ so that you can listen on the second radio, and then go back to both ears on the CQing radio when the CQ finishes. Note that the {END} macro is required, because otherwise the {STEREOOFF} macro will be executed before the CW is sent.

      1.5.11. LPT Port Basic SO2R Controller Design

      A basic SO2R controller design ... it's about as simple as there is but it works well with N1MM (or Writelog) in LPT mode. I decided to add support for CW from the LPT - the PTT relay can be replaced with a SPDT relay if CW is taken from two COM ports or Winkeyer USB is used (better). Joe, W4TV - 5/30/2009 - Revision 1.0

      1.5.11.1. Basic SO2R LPT Port - Receive Interface

      SO2R LPTPortReceiveIInterface

      1.5.11.2. Basic SO2R LPT Port - Transmit Interface

      SO2R LPTPortTransmitInterface


      1.5.12. Focus on Other Radio (FocusOther)

      A method of focus control, preferred by many contesters. When FocusOther is active, the RX focus is automatically shifted between the "Run" radio and the "S&P" radio, depending on whether the Run radio is transmitting. When the Run radio is transmitting, RX focus is shifted to the S&P radio. When the Run radio stops transmitting, RX focus shifts back to the Run radio, unless an unworked callsign has been entered in the S&P entry window. This allows a callsign to be entered in the S&P radio Entry Window while CQ is being sent on the Run radio.

      1.5.13. SO2R and MMTTY

      Instructions for setting up two copies of MMTTY for use in SO2R (Note: there are more detailed instructions on setting up for digital modes in the Digital Modes section - this section focuses on the SO2R aspects):

      • Create two separate folders for the two copies of MMTTY. This allows each copy to have its own configuration
        • Copy the MMTTY.exe, MMTTY.ini and UserPara.ini files (plus extfsk.dll if you use EXTFSK, or extfsk64.fsk if you use EXTFSK64) from the main MMTTY program folder into each of the two folders you will use for SO2R
      • Start N1MM Logger+ and open the Configurer (Config > Configure Ports, Audio, Mode Control, Other)
      • Select the Digital Modes tab
        • Under Digital Interface 1, TU Type, select Soundcard. Similarly for Digital Interface 2
        • Under DI-1 MMTTY Setup, select AFSK or FSK as appropriate for your setup and set the MMTTY Path to point to the copy of MMTTY.exe in the first folder
        • Under DI-2 MMTTY Setup, select AFSK or FSK as appropriate and set the MMTTY Path to point to the copy of MMTTY.exe in the second folder
      • Select the Hardware tab
        • Select the SO2R option
        • This next step is optional for many users, but mandatory for some. If you are using serial ports for PTT and/or FSK from MMTTY, you may need to check the Digital check box beside the ports used by the two copies of MMTTY. This step is necessary if you use the same port for CW or PTT keying from N1MM Logger in CW or SSB modes; if the only place you use a port is from MMTTY, this step is unnecessary
          • Click on the Set button for the port you will use with Radio 1 and set the Radio Nr and the Dig Wnd Nr both to 1
          • Click on the Set button for the port you will use with Radio 2 and set the Radio Nr and the Dig Wnd Nr both to 2
      • Close the Configurer
      • Open the Digital Interface 1 Window (Window > Digital Interface menu item in the main or Radio 1 Entry window)
        • If an MMTTY window does not appear (e.g. if you see an MMVARI window instead), then in the DI Window select the Interface > MMTTY menu item to open the MMTTY window
        • Select the Setup > Settings menu item
          • Under Preferred RTTY Interface (lower left), select MMTTY
          • Under Alignment Frequency (lower right), enter your Mark audio frequency (e.g. 2125)
          • Click on Save Configuration
        • In the DI Window, select the Setup > Setup MMTTY menu item
          • Select the TX tab and set the PTT & FSK port you will be using for the Radio 1 copy of MMTTY
          • Select the SoundCard tab (MMTTY version 1.66 or newer) and select the Reception sound card you will use with Radio 1. If you are using AFSK, you must also select the Transmission sound card
          • Under the Misc tab, select the channel (left or right) under Source. If you are using an older version of MMTTY, you may also have to set the Device numbers (this is not necessary if you have selected the sound card using the SoundCard tab)
          • Close the MMTTY Setup window
      • If the second Entry window is not open, open it by pressing the Pause key, the backslash (\) key or Ctrl+Right Arrow. In this window, select the Window > Digital Interface menu item to open the second Digital Interface window. Repeat the above steps using the COM port, sound card device and channel you will use with Radio 2


      1.5.13.1.1. SO2R RTTY with 1 Soundcard

      If you have a two-channel sound card and the necessary cabling to send audio output from both radios to the line input of the same sound card (left radio on the left channel, right radio on the right channel), you may be able to use a single sound card for SO2R RTTY. Just set both MMTTY instances to the same card, and in the configuration for each copy of MMTTY select the appropriate channel for that radio. Note that for AFSK transmit, MMTTY only uses the left channel regardless of which channel it is using on receive. Therefore if you are using AFSK for transmitting you will have to route the audio output from the left channel of the sound card to the audio inputs on both radios and rely on the SO2R switching to control which radio gets PTT.

      If your sound card does not support separate inputs for the two channels, such as a laptop sound card with only a mono mic input, you won't be able to do this and you will have to use two sound cards for SO2R.

      1.5.13.2. Example Screen Layouts

      Below two N1MM Logger Classic screen shots for SO2R. Notice the window symmetry for left and right VFO, as well as left and right band map. Essential information that is used by both radios was placed in the center: Check Window and Log Window. Of course other operators may have different preferences regarding window layout - but the most intuitive is to have the window layout reflect the equipment configuration.

      Image


      The screen above was taken by K2KW from a 17" screen.

      Image


      The screen shot above was taken by F6IRF and gives an example of a SO2R screen for RTTY.

      Last Modification: 18 September 2017 12:37:16 EDT by VE3KI.