Thanks for identifying this bug, Darren. Wayne N6KR
On Apr 24, 2014, at 11:44 AM, Darren Long <[email protected]> wrote: > Hi, > > I understand from the release notes that back in mid-2012, RX and TX EQ > were disabled in DATA-A mode. I'm running with latest stable FW in my > KX3 and I've noted that whilst it is not possible to adjust the RX EQ in > DATA-A mode, whatever RX EQ setting was dialled in in SSB mode still > applies in DATA-A mode, despite the fact that the RX EQ values show as a > flat response. > > For example, on the 50MHz band, which is very quiet, giving a flat noise > floor in the audio out, I wound 1.6kHz down to -16dB in SSB mode and > observed the trough in the audio FFT spectrum. I then changed to DATA-A > mode, confirmed that the RX EQ could not be adjusted, and that it showed > a flat response in the rig's interface. Nevertheless, the trough at > 1.6kHz remained in the audio output spectrum. > > This is repeatable for me, and suggests that the wrong set of EQ > parameters are being used for DATA-A mode. > > My other observation is that the audio output seems to drop off at 400Hz > in DATA-A mode with PBT FC of 1.5kHz and 4kHz BW, but the audio output > in SSB mode can go down below 200kHz with appropriate PBT filter > parameters. Is this an anomaly or expected behaviour. It would be nice > to be able to receive more digimode signals at the lower end of the pass > band in DATA-A mode. > > Cheers, > > Darren, G0HWW > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
