Hi Michael, I've been working on this one. One thing lead to another and I ended up refactoring all of freedv_api.c which was getting out of hand with all the modes that had been added over the years:
https://github.com/drowe67/codec2/pull/111 So as well as testing the SM1000 we'll need to test a new version of FreeDV GUI shortly :-) Anyhoo, some new v4 firmware for you (and anyone else) to try: https://github.com/drowe67/codec2/blob/master/stm32/doc/sm1000_manual.md It's been running all day here right next to me (I'm WFH) without a single noise. In fact it's a bit _too_ quiet, although I can see the sync led flashing every few seconds as it gets a "maybe 700D" sync on noise. Cheers, David On 3/4/20 1:09 pm, David Rowe wrote: > Hi Michael, > > I've managed to reproduce the issue by setting up my FT-817 with a > SM1000, and some powered speakers so I could leave it running for a > while and hear it from the next room. It's "breaking squelch" for me a > few times a minute. Might be signal dependent too, ie what sort of > background signals there are on the band. > > Would be nice to fix this, so the SM1000 can be left running like a > squelched FM radio. > > I'll think about how to deal with this, will take a few weeks to fix. > > Steve - thanks for your suggestions too. > > Cheers, > David > > On 2/4/20 5:00 pm, Michael Carey wrote: >> Hi David, >> >> I've tried Rev 2 again and it doesn't seem to be much better. >> >> I can minimise the issue by reducing the audio level out of the IC-7100 >> Accessory connector (menu setting changed from 50% to 25%). >> The SM1000 still seems decode the transmissions from the >> FreeDV/HPSDR/PowerSDR setup fine with the audio output level reduced to >> 25%. >> >> What is the recommended (optimal) audio level expected at the input of >> the SM1000 with the RIG SPKR trimpot set midway? Is the flashing >> Clip/Error LED an indication of too much audio in? When does it's >> function change from Clip to Error? >> >> Michael. >> VK5ZEA >> >> On 2/04/2020 8:07 am, Michael Carey wrote: >>> Hi David, >>> >>> I don't recall having this issue with the Rev 2 firmware, but I am >>> going to "downgrade" today to compare. >>> >>> Still unsure of what triggers it... but when I disconnect my IC-7100 >>> from the antenna the issue is very much less pronounced. The smallest >>> amount of QRM (even inaudible to my ear) seems to make it worse. >>> >>> Michael. >>> VK5ZEA >>> >>> On 2/04/2020 6:20 am, David Rowe wrote: >>>> Hi Michael, >>>> >>>> OK thanks I will check this out over the weekend and get back to you. >>>> >>>> There's a TTY output that we can use to see what's going on (e.g. if >>>> it's getting false sync or breaking squelch). >>>> >>>> List: Is anyone else using the SM1000 with 700D experiencing this >>>> problem? >>>> >>>> Michael - was the problem present on the Rev 2 firmware? >>>> >>>> Cheers, >>>> David >>>> >>>> On 1/4/20 5:26 pm, Michael Carey wrote: >>>>> Hi David (et al), >>>>> >>>>> I loaded my SM1000 (Ref D) with v3 firmware today and it seems to be >>>>> working very well on air. >>>>> >>>>> My SM1000 is connected to an Icom IC-7100 using the accessory >>>>> connector, >>>>> SM1000 modified to give more audio drive into the ACC connector. >>>>> >>>>> I'm using FreeDV together with a HPSDR/PowerSDR to monitor and transmit >>>>> back to the SM1000. >>>>> >>>>> The only thing I have noticed is that when in 700D mode, I get a >>>>> continual burbles and squeaks from the SM1000 when tuned to a free >>>>> frequency. The Sync and Clip/Error LEDs flash almost continually. The >>>>> audio level from the radio into the SM1000 doesn't seem to make a >>>>> difference, very low audio levels from the IC-7100 into the SM1000 >>>>> seems >>>>> to make this happen. >>>>> >>>>> I get the occasional flash of the Sync and Clip/Error LED in 1600 mode, >>>>> but until it actually starts decoding a 1600 transmission, it remains >>>>> silent. >>>>> >>>>> 73 >>>>> >>>>> Michael >>>>> VK5ZEA >>>>> >>>>> On 9/03/2020 7:07 am, David Rowe wrote: >>>>>> Hello List, >>>>>> >>>>>> A few months ago Mal, VK8MT, spotted a few bugs in the SM1000 user >>>>>> interface. I have had a go at fixing them, integrating the latest 700D >>>>>> modem tweaks, and adding the automatic microphone equaliser: >>>>>> >>>>>> https://github.com/drowe67/codec2/pull/58 >>>>>> >>>>>> I've also tweaked the doco, adding links to the V3 binaries, and >>>>>> fixing >>>>>> a glitch in the example wiring diagram: >>>>>> >>>>>> https://github.com/drowe67/codec2/blob/dr-sm1000-tweaks/stm32/doc/sm1000_manual.md >>>>>> >>>>>> >>>>>> >>>>>> If you are interested, please try it out over the air and let me know >>>>>> how it goes. >>>>>> >>>>>> http://www.rowetel.com/downloads/codec2/smartmic/sm1000v3.bin >>>>>> http://www.rowetel.com/downloads/codec2/smartmic/sm1000v3.dfu >>>>>> >>>>>> On power on you should hear 'V3' in morse, followed by the current >>>>>> mode >>>>>> (ANA for analog if it's a fresh reflash). >>>>>> >>>>>> Thanks, >>>>>> David >>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> Freetel-codec2 mailing list >>>>>> [email protected] >>>>>> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >>>>> >>>>> _______________________________________________ >>>>> Freetel-codec2 mailing list >>>>> [email protected] >>>>> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >>>> >>>> _______________________________________________ >>>> Freetel-codec2 mailing list >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >>> >>> >>> _______________________________________________ >>> Freetel-codec2 mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >> >> >> _______________________________________________ >> Freetel-codec2 mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
