[Orion] N1MM, microKeyer, Orion and RTTY FSK operation

[Eric Scace K3NA]

    I had some trouble configuring an Orion radio to work 
with a microKeyer (sending FSK), N1MM Logger (including 
MMTTY).  With some tips from Joe W4TV, the attached 
configuration seems to work fine.

    I used Com1 and Com3, but you can use any combination of 
two Com ports as long as you are consistent in configuring 
the microKeyer driver, N1MM Logger, and MMTTY.

    I hope others find this helpful.

73,
    -- Eric K3NA

********************
ORION CONFIGURATION:

Menu\Other
    FSK TX data = Mark high.

********************
MICROKEYER CONFIGURATION:

Cables:
    For RTTY:  Tan cable can be disconnected from the Orion 
front panel mic connector.

Driver software on computer:
       On Ports tab:
          Control = Com1.  Use the Set button to open the 
radio setting dialog.  In this dialog select Radio = "TenTec 
Orion"... and leave "Disable router queries" checked.
          FSK = Com3.
          PTT = for RTTY set PTT to Com3 RTS.  Note: MMTTY 
operates the PTT line on the same COM port as that used to 
send FSK (on the TXD lead).  N1MM Logger will NOT be 
manipulating the PTT line for RTTY FSK.
       On Audio tab:
          Select "Follow radio mode".
          Check "Allow custom settings".
          FSK setting = AAA.
       On PTT/FSK tab:
          Serial port PTT = Follow radio mode
          Check "Allow custom settings"
          FSK = PTT2 immediate.
          PA PTT = unchecked in my case (for Acom, which 
uses the amp keying loop from the Orion).
          Invert FSK = unchecked for Orion.
          When foot switch is pressed: uncheck "mute serial 
FSK" (default)

    Before starting up N1MM Logger, make sure the Orion 
frequencies are being displayed on the microKeyer driver 
Ports tab.  Put the Orion into FSK mode.  Use the PTT's 
"Test" button to verify the PTT function turns the Orion 
transmitter on.  While the transmitter is on, use the FSK 
"Test" button to send a few characters over the air.  You 
should hear FSK modulation in the monitor function of the 
Orion in your headphones.

    When all checks out, save as a preset driver 
configuration for future use.

********************
N1MM LOGGER:

Menu:  Config\Configure ports...  (aka "The Configurer")

    Hardware tab:
       Click SO2V if a single-radio operating position.
       Com1:  Radio = TT Orion.  Uncheck "Other" box 
(default).  Click the Set button and configure as follows:
          Speed = 56000
          Parity = N
          DataBits = 8
          StopBits = 2
          DTR = handshake
          RTS = handshake
             [Note: Always use handshake for the Orion 
radio.  For CW/SSB, put the PTT signal on a different Com 
port to the microKeyer driver; e.g., Com2 in my configuration.]
          Radio/VFO = 1 (causes MM to control both VFOs) for 
single-radio operating positions.
          Radio PTT via command = unchecked (default)
          Allow ext interrupts = unchecked (default)
       All others com ports:  Radio = none.  Digital, 
packet, and other are unchecked.
       LPT ports: Other is unchecked.

    Digital modes tab:
       Digital Interface 1 column:
          TU type = MMTTY/PSK
       DI-1 MMTTY Mode = FSK.
       DI-1 MMTTY Path = C:\Program Files\MMTTY\MMTTY.exe

Now open the Digital Interface window with the menu command 
Window\Digital interface.
    The window that displays received RTTY text has a title 
such as "14081.97 DI1 RTTY Mode - MMTTY/PSK".
    Use the menu command Setup\Setup MMTTY and configure as 
follows:
    On the TX tab:
       PTT Port = Com3.  (This is for both PTT signals and 
FSK signals).
       Invert logic = unchecked.
    On the Misc tab:
       TX Port = "Com-TXD (FSK)"  Click the USB Port button 
and choose option "C Limiting speed".
    NOTE:  Must close the Digital Interface windows and 
re-open them for changes to take effect!!

    You should be able to transmit properly now.

    Levels for the audio being received can be adjusted by 
the "computer" knob on the microKeyer and the volume control 
in the computer (accessible from the microKeyer driver Audio 
page, as I recall).  Make sure N1MM Configurer is looking in 
the right place for the audio from the radio.

..end..