[ICOM] Computer Control Interface

[Dave]

To run FSK with MMTTY, you need to provide MMTTY with a way to control your
radio's RTTY input (pin 1 on ACC-1). MMTTY can be configured to use a serial
port data transmit data signal (TxD) for this purpose. 

Warning: I've not tried what I'm about to suggest; I downloaded the MFJ
manual, but don't have a 1279 with which to test.

As described in section 4-4 of your MFJ-1279 manual, you can configure the
unit's CW output to be controlled by the serial port TxD signal; if you then
connect the CW output to ACC-1 pin 1, MMTTY should be able to transmit FSK.
Section 5.2 of the MFJ-1279 manual explicitly mentions the idea of
controlling FSK keying via the CW output.

   73,

       Dave, AA6YQ


-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
Behalf Of AD5VJ Bob
Sent: Sunday, December 25, 2005 1:27 AM
To: Icom Reflector
Subject: [ICOM] Computer Control Interface


I just wrote this to MFJ tech support hoping to get an
answer however, just in case, do any of you guys know if
this is possible?


I have your MFJ-1279  which I bought a couple of months
ago. It works perfectly for all sound card modes and for
cw and for AFSK RTTY.

I am using software for a modulator/demodulator.

After setting up MMTTY for FSK it will key the rig but no
FSK comes through to the rig.

I have an Icom 756PRO, how do I use my MFJ-1279 FSK keying feature so that I
can key with FSK instead of AFSK?

I have a spare plug for the ACC 1 jack that is in the back
of the Icom.

Where can I connect the Icom ACC 1 cable to the MFJ-1279
so I can get the software to send the FSK signal through
to the ACC 1 jack on the ICOM?

I know how the Icom works with the ACC 1 plug in the back
but I dont see any provisions for interfacing my com port
to it from the MFJ-1279.

73 fer nw,
Bob AD5VJ

10X# 37210, FP#-1141, SMIRK#-5177
http://www.n5iet.com/
Code may be taking a back seat for now,
but the pioneering spirit that put the code
there in the first place is out front of it all.



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