[WriteLog] AFSK and the Icom IC-761

[David O Hachadorian]

Here's a trick that worked wonders on the TS-850.
Maybe it will help you, too.

In the rttyrite window/tu type/tnc setup, select "low tones."
The low tones are around 1275 hz, right in the middle of the
ssb audio passband. Maybe it will help your vox to function.
It will also allow you to use your narrow filters, if your
radio allows you to select them in SSB mode. The low tones
are also easier on your ears. The big advantage, though, is the
use of narrow filters on ssb.

Dave Hachadorian, K6LL
Yuma, AZ
K6LL@juno.com

 

On Sat, 5 Jan 2002 02:20:18 -0600 "Billy Cox" <aa4nu@ix.netcom.com>
writes:
> Hi,
> 
> K4OOO's is "almost" ready to rumble in the ARRL Roundup ...
> 
> Almost in that we can't seem to get his IC-761 to key up with
> AFSK and WL ...
> 
> What we know ...  P-166, 64m RAM, WL10.28, sound card
> using stereo AFSK ... rig is tracking fine as to freq. and mode.
> 
> We are going into/out of  the IC761 via the ACC1 jack using
> pins 4 and 5 for xmit and rcve, and pin 2 for ground ...
> 
> The soundcard is now decoding FB ... the wide band works
> well also ... we watched AA5AU work stations this evening
> and K4OOO now sees the advantage of using both 'windows'
> by watching what each caught or missed during AU's QSOs.
> 
> The soundcard is sending tones to the rig ... we can hear the tones
> with headphones at the SPEAKER OUT on the sound card, or by
> manually putting the IC761 into transmit via the footswitch or the
> manually engaging the front panel T/R switch ...
> 
> Alt-K works as to sending, not sending ... the rig just won't key 
> via
> VOX or ?????  We see the tone levels (mid-range) going out of the
> sound card to the rig when looking at the record/volume windows.
> 
> "LSB is really FSK" is checked, and we tried using the 761
> in both RTTY (Icom front panel) and LSB ... but no joy yet ...
> 
> Now prepared for the "gentle slap to the forehead" and be
> reminded of what we have overlooked ... <gently please>
> 
> TU ... Solve this folks and we have yet another NEW RTTY
> contester on board ... and hopefully in time for the Roundup !
> 
> 73 Billy AA4NU
> 
> 
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