[Fourlanders] FT-847 HRD DM780 audio interface question

[S Kosmetatos]

I downloaded HRD 4 this afternoon to see about configuring it for PSK. I was
debating working it up on the 847 or the Icom 706; I haven't delved into it
yet, but some thoughts/questions/speculations: 

Are you using HRD v4 or 5? 5 is in beta, so this may be a problem with HRD5,
while the DM780 module is working correctly. If you are on 5, you might try
4 to see if the problem is ver5 related.

I'm assuming your interface box has connections for PTT and audio. Does HRD
use CAT for PTT control in PSK mode, and if so, is your interface box also
asserting PTT control on the PTT jack on the back of the FT-847? If you
leave HRD running, click on the DM780 button, and simply disconnect the CAT
cable, will you get full output as you do when running DM780 without HRD?
Does the problem then again appear if you reconnect the cable? You might
think about sending a PTT Off Opcode command to CAT to disable it while
under HRD control. There apparently are some macros that can be run within
HRD to command CAT.

I'm going to look around as well. I did a quick survey of the HRD user forum
for FT-847 issues, but the same problem may have been identified with
another Yaesu model.

Kos, N4NIA



-----Original Message-----
From: fourlanders-bounces at contesting.com
[mailto:fourlanders-bounces at contesting.com] On Behalf Of Bill Pence
Sent: Tuesday, June 15, 2010 10:20 PM
To: 4Landers
Subject: [Fourlanders] FT-847 HRD DM780 audio interface question

Well, after an awesome weekend on the mtn, its back to real life.

Some if you and I talked about the PSK31 (or just digital modes) audio
issue I am chasing with HRD, the audio interface box and DM-780.

Well, I have a VERY interesting new data point that is a real head
scratcher thus far.

I have repeated the following several times. with *no* hardware changes:

1. open HRD and connect to FT-847 for CAT.
radio connects and shows correctly.
2. click the DM-780 button in HRD to open DM-780.  click the send
button to begin transmitting.
3. the FT847 goes into TX mode with QRP or less output  VERY low audio
to radio. I can hear the PSK tones on the nearby rx, but weak, and no
RF indicated on the 847.

4 close HRD
5. DM-780 directly.
6. adjust the PT setings to configure for PTT via RTS rather than via
HRD and transmit. full output.

WTC?

I am searching the forums, but ths far, gogle is not my friend so I
have not found any info thus far.
I am confused. I do not see any audio level settin with HRD, but with
HD on and doing CAT
to the radio, DM-780 does not transmit correctly.

close HRD and DM-780 makes full output (I turned down the leel for
about 20w on the 847 display.) and the sigal is on the local RX and
strong.

any opinions or experience? am I missing a menu item in HRD of DM-780?

thanks in advance!!
ki4us
bill
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