Re: rxtx doesn't transmit
- Marc, Get a copy of IQ output tester, and CFGSR. The IQ output tester will generate a IQ signal pair at audio frequency and feed it into your soft rock, then key the transmitter with CFGSR from the test tab. If you have a scope, you should see the finals kick on. If they do, then the problem lies with HDSDR setup, otherwise you have some hardware problem.
--- In firstname.lastname@example.org, "mkatz_08852" <mkatz_08852@...> wrote:
> Hello guys,
> I completed the build and receiver works well.
> I can't get it to transmit, though. I am using HDSDR. When I click on transmit, the software behaves as though it is sending but a separate receiver and freq ctr don't receive anything.
> I set the two sound cards as Alan instructed (I think) with RX in and TX out going to the SB and RX out and TX in going to an inexpensive dongle.
> The current draw according to the power supply is around 50ma on receive and 120ma on transmit. According to the build notes, the 50ma is a bit high. The finals are not getting hot.
> Any ideas?
> Marc WB2MSC
- Does your sound card have any kind of "headphone expander" or other matrixing technology (like SRS)? These often cause crosstalk unless you can figure out how to turn it firmly *off*.-J.On 6 Oct 2012, at 06:38, "Brent G DeWitt" <bdewitt@...> wrote:
I agree. I’m just not sure how to kill it. Suggestions welcome!
Brent DeWitt, AB1LF