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Bug ID:  4037
Submitted On: Sunday, October 16, 2011 @ 1:00:53 PM UTC
Submitted By: n5ba
Callsign: N5BA
Radio Product: FLEX-5000A
Software Product: PowerSDR 2.x
Product Version: 2.0.22
Operating System: Win7 (x64)
Relates to: Digital Transmit Audio
Issue/Bug Title: Digital Transmit Audio
Current Status: OPEN (Open)
Assigned To: abed - Abed
 

       
Report Detail:
While chasing the T32C DXpedition this week on RTTY, I notice some odd sound on the transmit audio. It sounds like a voice signal overlaid on the tones. I've noticed it mostly on 40 meters. I recorded some on the FS wave recorder, and I hope I can attach it to this report. If not, let me know where to send it. If you listen on LSB with the bandpass filter opened to 3.3k to get a good wide mix, you can hear a "hmmm" or some such on the audio. This isn't on every transmission, but on most. It's not presented at the same time either. Some times it's at the start, others middle, others the end. I also notice what appears to be a transmit spur on the low side, beyond the passband that's displayed. I'm using MMTTY for the modum. VAC 4.09. VSP Mgr. I can't see how to copy and past the .wav file, so please let me know how. Thanks Brian N5BA

Response:
The description sounds like what happens when using the Demo mode of VAC.  Is this possibly the issue?

You may also want to test this using the most recent PowerSDR release (v2.2.3).


Eric Wachsmann
FlexRadio Systems
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