Micro Keyer Notes

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Notes on setting up the Micro Keyer with various programs. Use the N1MM manual, MicroKeyer Manual and templates. They're very good. These notes are things that weren't intuitively obvious for me.

Diagram - Wiring diagram


In N1MM:

Config/Hardware Tab
COM4 Kenwood, 38400,n,8,1 DTR,RTS always on (TS-2K menu 56)
COM5 None, CW/PTT Checked
COM5/Set - DTR/RTS always on, check "Allow Ext Interrupts",  Check "WinKey," PTT Delay 100ms

WinKey Tab
WinKey Pin 5 function, PTT - set to none to disable PTT for rig
Lead Time - 12- set's PTT delay at 120 ms for keyer (paddles and program)

In microHAM router:

Ports Tab
COM4 is for the CAT control
COM5 WinKey, 1200,n,8,1

Pressing the paddle will interrupt the CW from N1MM.

Make sure you allow enough time for the configs to be enabled between programs after making a change in N1MM.


Use CCC for the routing mode. This routes the mic audio through the computer for all PTT methods, so the audio levels are the same.

CTRL+O - switch opperator. Use stu2. Files are stored in N1MM/WAV/stu2/ directory, where stu2 is the name of the operator. You'll see this in the SSB message dialog. wav\{operator}\cq.wav. Seems like there's only one set of letters for all operators.

CTRL+Q - quck edit.

CRTL+SHIFT+Fx to record message.

Control Panel/Sounds/scheme - No sound scheme. Keeps the windows 'dings' out of the xmit audio.

http://pages.cthome.net/n1mm/html/English/BeforeTheContest.htm#RECORDWAV - more notes on setting things up.

Configurator/Audio Tab - #1 Zero or Single Card, Select Device - sound card, Input = Microphone, Line to Mute = Microphone, Radio Input = Line-In

Record Control - Select microphone, Advanced - use +20db gain. Mic volume = 100%.

Play Control - Play control volume 100%,Wave = 80%, Line-In = 50%, Mic. = 100%

MicroKeyer Computer volume = 2 o'Clock

Micro Keyer Radio = 2 O'clock

SSB Messages

Set up the sound card in N1MM. Config/Config Ports/Audio. Select "1. Zero or Single Card..." Select the sound card and make sure "Select Line Input" and "Select Line to Mute" are set as Microphone. The radio input port is "Line In."

Each operator can have his/her own set of messages. Use Config/Change...Message Buttons to assign WAV files to the function keys. Specify the file as: wav/{operator}/filename.wav. This will use an operator specific subdirectory - %n1mm_root_dir%/wav/{operator}/ where {operator} is set using the change opeator function. CTRL-O or Control/Change Operator.

There are two options to record the messages; 1) use an external sound editor (e.g. Audacity) or 2) via N1MM using Ctrl-Shift+Fx. Using an audio editor is nice because you can normalize the audio. The N1MM manual recommends you record all the messages at once, normalize them and chop them into smaller files. This may be a good idea for pre-contest, but I suspect we'll end up using the 'on the fly method.'

Making Waves

You need wav files for each number and letter. Use Audacity to record the whole alphabet and set of numbers at once. Then save each utterance uner the proper file name. Like the N1MM manual says - sound excited!

After you record the letters and numbers, normalize the file, then highlight each utterance to its own file. Highlight the section and choose File, Export Selection to WAV. The format for each file is 'letter.wav' (e.g. a.wav or 1.wav) Store the files in the N1MM/letters/ subdirectory. (Hint: play each selection after you save them to make sure you have the right utterance.)

Then record a string of messages. For example, for the VHF Contest:

  • F1 - CQ Contest CQ Contest Whiskey 7 Italy Yankee Whiskey 7 Italy Yankee Contest
  • F2 - Fox Mike zero eight
  • F3 - Roger 73s Q R Z contest Whiskey 7 Italy Mike
  • F4 - Whiskey 7 Italy Mike
  • F6 - QSO Before old man thanks
  • F7 - QRZ?
  • F8 - Again, Again
  • F9 - You Grid Square Again

Of course, you can record the 'function' messages through N1MM, too. Set the Microphone level to 80% in the Record Control panel to match the level of the prerecorded letters/numbers.

DX Lab

I use DX Lab as the control and logging software for my station. This configuration allows me to do CW, Voice and PSK31, which are my normal operating modes. (Well - almost exclusively CW.)

Audio Routes

RX audio comes from ACC2, through the MK and into the LINE-IN port on the sound card. So select LINE-IN in the Sound Card Record Control Panel. Volume control is about 50%. TX audio is generated by WinWarbler and routes through the MK to the MIC connector on the front panel. (So CAT PTT is OK). Switch mode CCA mutes the mic and routes audio from the computer to the MIC connector on the TS2K for both COM PTT and CAT PTT. Using the footswitch PTT routes the mic directly to the TS-2K for 'normal' voice operations.


In MicroHam Router:

  COM 4 CAT - 38400,n,8,1
  COM 5 WinKey - 1200,n,8,1
  COM 6 2nd CAT port
  COM 7 FSK, PTT checked

Audio Switching
  Use Mode CCA for Voice

Audio Mixer
  Rec MIC - Microphone
  TX Mic = Microphone
  TX Voice = Microphone
  RX Recording = Line-IN

  PTT Lead 10 ms
  PTT Tail 200 ms
  Hang Time 1.0
  Generat PTT
  Iambic A
  Disable Paddle Memory

In DX Lab:

  Ports - COM6 is control (Use 2nd CAT port so we can use N1MM at the same time.)

  CW Tab
   Keying - WinKey, port COM 5
   Keyboard Mode - Auto Start, Auto Stop, Word
  PTT Tab
    RTS Mode, COM 9


Had a problem with PTT2. Wasn't keying rig, found a broken wire inside the DB-37 connector. Fixed. 12/26/08. For reference, here is the PTT connections. Cable drawing is here: http://www.microham.com/Downloads/DB37-TS-9.pdf

DB-37   LED     PTT   ACC2 Wire       Comments
27      Red     PTT1   13  Yellow     Connects to Mic, Does NOT mute audio
9       Green   PTT2   9   Shielded   MUTES audio from Mic.

CW:      PTT2 Rear Panel (Green LED)
Voice:   PTT1 Front Panel (Red LED)
Digital: PTT2 Rear Panel (Green LED)

Note: Amber LED = both PTT1 and PTT2.


To get AGW Packet Engine to run, create a new port ina AGWPE and use COM 9 (or whatever the microham PTT port is) as the serial port. In the configurations above, we set COM 9 for PTT using RTS.

Select Port: COM 9
Baud Rate: 9600
TNC Type: SoundCard
Mode: KISS Simple
Single Port: Checked

If you screw up and delete the last port, go to the AGWPE subdirectory and delete the port.ini files. Then recreate a new port and restart the program.


Basic set up to use MMTTY with the TS-2K. TX will us the FSK Modulator in the TS2K and RX will use the sound card. The documentation for these components is really good. These notes are specific to my configuration or the settings were not intuitively obvious to me.

  • Microham Microkeyer
  • TS-2000
  • MTTY
  • N1MM

Success! Worked VK2KM on Jan 2, 2008 at 4:00PM Local on 20 Meters with 100W into a dipole mounted in my attic.


  • FSK = COM7, PTT checked.
  • Audio Mixer / None for RX Recording.


From the Microham Web Site: on TS-2000 menu nr.39 = INVERS, menu nr.50B = 5, mnu nr.50C = 9, menu nr.50D = 9. The TS-2K has a built in FSK modulator. (Pin 2 of ACC2) Audio Out is pin 3 ACC2.


  • Use COM port for FSK Transmission. (Option/Setup/Misc)
  • set up COM port = COM7, use USB Port, Limiting Speed.
  • Use the BPF, FW=150, Taps=512