Need some help with rtty - Digital Forum at eHam.net

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eHam.net Forum : Digital : Need some help with rtty

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Need some help with rtty	Reply
by N7XW on May 2, 2009	Mail this to a friend!
I am using an Icom 746, mfj1279 and hamscope. I can receive rtty in usb mode but no other modes. In any mode other than usb, the text is just random characters. The problem is that I cannot transmit rtty in usb mode. I can get the radio to switch to transmit mode but cannot get a carrier. When I put the radio in rtty mode, I can transmit fine...but cannot receive in rtty mode. Do I just have to keep switching back and forth? This seems like a pain to do it this way. I'm new to digital modes and would appreciate any help. Thanks.

RE: Need some help with rtty	Reply
by AC4RD on May 3, 2009	Mail this to a friend!
If you're using a soundcard interface (I'm guessing that is what the MFJ you mentioned is), you should definitely be staying in USB mode when you switch to sending--though your radio has a dedicated RTTY mode (as you can see) that you might also try. WHen you switch to transmit in USB mode--does the transmitter click on? "Transmit" LED turns on, that sort of thing? Or does it simply not go into transmit mode? If it's the latter, you may have a problem with the line that tells your radio to transmit; on my setup I tell it which COM port (1) to use, which lines to use ("both") ... that's done in the RTTY software. Could that be your problem? OR is the radio going into transmit mode OK?

RE: Need some help with rtty	Reply
by N7XW on May 4, 2009	Mail this to a friend!
Thanks for the suggestions. Turned out it was something really stupid...once I figured it out, everything worked great. Thanks again.

RE: Need some help with rtty	Reply
by VE3VID on May 6, 2009	Mail this to a friend!
Stupid is never stupid......what was wrong? I'm just about to try RTTY for the first time. David

RE: Need some help with rtty	Reply
by N7XW on May 10, 2009	Mail this to a friend!
Actually it was pretty stupid on my end. I didnt have one of my audio cables plugged in. Instead, I had the headphones plugged in that port and didnt realize it! Oh well, got it fixed now.

RE: Need some help with rtty	Reply
by AC4RD on July 12, 2009	Mail this to a friend!
That's not stupid at all, IMO. We ALL do that sort of thing now and then. It's like trying to work a pileup but forgetting to hit the "SPLIT" button and transmitting on the DX frequency, or forgetting that your 6-meter antenna is hooked to the transceiver and trying to tune it up on 30 meters. :-) These things happen to all of us--unfortunately! :-)

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