[amsat-bb] IC-9700 & FoxTelem 1.08p

Sat Nov 2 12:26:51 UTC 2019

For anyone following this thread, the code is now fixed.  There were two
issues that prevented good decodes from the IC-9700.

1/ The IF output of the IC-9700 is not a true IQ signal and you have both a
lower and upper sideband image.  One has the bits flipped upside down.
Historically FoxTelem has coped with the bits with either sense, even
though only one is "correct", so 1.07 decoded fine from the wrong image.  I
had introduced a bug that meant the "bit flip" check was not run.  That
code is back in.

2/ There was also an issue where the algorithm that finds the signal was
not being run if SatPC32 position was being read.  That was a common
configuration for IC-9700 owners, so it compounded the problem.

You can download the jar file and patch your installation from here:
http://amsat.us/FoxTelem/test/FoxTelem.jar

Or install the whole 1.08r release as normal from here:
http://amsat.us/FoxTelem/windows/
http://amsat.us/FoxTelem/linux/
http://amsat.us/FoxTelem/mac/

73
Chris

On Thu, Oct 31, 2019 at 6:12 PM jeff griffin via AMSAT-BB <
amsat-bb at amsat.org> wrote:

> I just reinstalled 1.08p and can now decode the WAV file Left, or Right,
> Raised Cosine, or Windowed Sync. Decoded 23 23 23 23 packets. Now what's
> odd is I couldn't get the WAV file to decode until I deleted 108y, and then
> reinstalled it. Win10 build 1903.
>
>  tonight's passes will be interesting...
>
> 73 Jeff kb2m
>
> -----Original Message-----
> From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of Kevin via
> AMSAT-BB
> Sent: Thursday, October 31, 2019 2:17 PM
> To: APBIDDLE at MAILAPS.ORG; 'AMSAT-BB'
> Subject: Re: [amsat-bb] IC-9700 & FoxTelem 1.08p
>
> Alan,
>    Just had 95, 91 and 92  go by and all 3 decoded and all 3 decoders
> also worked although windowed sinc seems to be the best.
> Whats interesting is 1.07Y will decode if you are on the left side or
> the right side of the image but 1.08 only works if you are on the
> "right" side,
> I will leave that up to Chris to explain why that is.
>    I can go in and tweak the frequency settings to make foxtelem always
> look on the right side.
>
>   73
> Kevin wa7fwf
>
> On 10/31/2019 10:30, Alan wrote:
> > Kevin,
> >
> > My shack computer runs WIN7 64 bit sp1.  I installed a fresh copy of
> 1.08p on my WIN10 64 bit computer, version 1903 build 18362.356.  I made no
> changed to the FoxTelem defaults except to put in my callsign and other
> information to keep it happy.
> >
> > First I ran the file through Raised Cosine using the defaults.  25
> frames.  I deleted the log files, switched to Windows Sinc using my
> standard 1440 length.  25 frames.
> >
> > No idea what I might be doing different.  Usually I am the one who has
> the odd problem.
> >
> > 73,
> >
> > Alan
> > WA4SCA
> >
> >
> > <-----Original Message-----
> > <From: Kevin [mailto:wa7fwf at gmail.com]
> > <Sent: Thursday, October 31, 2019 10:09 AM
> > <To: APBIDDLE at MAILAPS.ORG; Alan <wa4sca at gmail.com>; AMSAT-BB
> > <<amsat-bb at amsat.org>
> > <Subject: Re: [amsat-bb] IC-9700 & FoxTelem 1.08p
> > <
> > <Alan,
> > <   Windows 10 pro  Version    10.0.17763 Build 17763
> > <   Java jre1.8.0_221
> > <
> > <   wonder what other variables might be a factor?
> > <
> > <73
> > <Kevin wa7fwf
> > <
> > <
> > <
> > <On 10/31/2019 03:33, Alan via AMSAT-BB wrote:
> > <> Kevin,
> > <>
> > <> I just played your recording through 1.08p.  Recovered 25 frames,
> which is
> > <about what you expect.  More evidence there is another variable
> involved.
> > <>
> > <> 73,
> > <>
> > <> Alan
> > <> WA4SCA
> > <>
> > <>
> > <> <-----Original Message-----
> > <> <From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of
> > <Kevin
> > <> <via AMSAT-BB
> > <> <Sent: Wednesday, October 30, 2019 22:45 PM
> > <> <To: amsat-bb at amsat.org
> > <> <Subject: Re: [amsat-bb] IC-9700 & foxtelem 1.08p
> > <> <
> > <> <Chris,
> > <> <   The 9700 outputs a 12khz IF signal that is passed to the internal
> > <> <codec and then out the USB port and windows treats it as a soundcard.
> > <> <   I used audacity to create about a 2min file and then read it in on
> > <> <1.07y to verify it is good.
> > <> <   I uploaded it to dropbox and the link is
> > <> <  https://www.dropbox.com/s/eh5bya72y8gfskt/fox1.wav?dl=0
> > <> <
> > <> <it was recorded at 48000 and has been saved as a wav
> > <> <
> > <> <Thanks
> > <> <Kevin wa7fwf
> > <> <
> > <> <On 10/30/2019 13:59, Chris Thompson via AMSAT-BB wrote:
> > <> <> I have tried to reproduce this, but I do not have a 9700 so it is
> hard.  So
> > <> <> far I can not work out what is wrong.
> > <> <>
> > <> <> Can someone describe the setup with the 9700?  How is the audio
> read
> > <into
> > <> <> the computer and sent to FoxTelem?  Is FoxTelem reading it from a
> > <sound
> > <> <> card?  Or what looks like a sound card?
> > <> <>
> > <> <> Can someone use Audacity and record some audio for me to test with?
> > <Try
> > <> <to
> > <> <> record it at the sample rate you use in FoxTelem.  e.g. if you set
> > <FoxTelem
> > <> <> to IQ and 48000 samples per second, then set Audacity to 48000 too.
> > <> <>
> > <> <> thanks
> > <> <> Chris
> > <> <>
> > <> <> On Wed, Oct 30, 2019 at 1:23 PM jeff griffin via AMSAT-BB <
> > <> <> amsat-bb at amsat.org> wrote:
> > <> <>
> > <> <>>    I'm going to wait for the fix for the 9700. In the meantime
> I'm now
> > <> <>> collecting telemetry with my FIAB with a eggbeater antenna setup
> that
> > <I'm
> > <> <>> going to leave up here for the winter. I'm seeing a much better
> decode
> > <> <rate
> > <> <>> with 1.08p over 1.07y, about 2 to 1. So I'm seeing 1.08 is
> clearly better
> > <> <>> then 1.07. Thanks Chris!
> > <> <>>
> > <> <>> 73 Jeff kb2m
> > <> <>>
> > <> <>> -----Original Message-----
> > <> <>> From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of
> > <> <Kevin via
> > <> <>> AMSAT-BB
> > <> <>> Sent: Wednesday, October 30, 2019 12:54 PM
> > <> <>> To: amsat-bb at amsat.org
> > <> <>> Subject: Re: [amsat-bb] IC-9700 & foxtelem 1.08p
> > <> <>>
> > <> <>> Hi Alan and everyone else that replied,
> > <> <>>
> > <> <>>     Windows Sinc also has zero decodes, tried all decoder modes.
> > <> <>>
> > <> <>> for now 1.07y  FTW
> > <> <>>
> > <> <>> Thanks
> > <> <>> Kevin
> > <> <>>
> > <> <>>
> > <> <>> On 10/29/2019 23:20, Alan wrote:
> > <> <>>> I you are using the Raised Cosine decoder, try the Windows Sinc
> > <instead.
> > <> <>>>
> > <> <>>> 73,
> > <> <>>>
> > <> <>>> Alan
> > <> <>>>
> > <> <>>> WA4SCA
> > <> <>>>
> > <> <>>> *From: *Kevin via AMSAT-BB <mailto:amsat-bb at amsat.org>
> > <> <>>> *Sent: *Wednesday, October 30, 2019 12:21 AM
> > <> <>>> *To: *amsat-bb at amsat.org <mailto:amsat-bb at amsat.org>
> > <> <>>> *Subject: *[amsat-bb] IC-9700 & foxtelem 1.08p
> > <> <>>>
> > <> <>>> Hi All,
> > <> <>>>
> > <> <>>>    Any IC-9700 users out there that have switched to foxtelem
> 1.08p
> > <> <>>>
> > <> <>>> using USB and IQ mode? I see a good eye but get zero decodes,
> > <dropping
> > <> <>>>
> > <> <>>> back to 1.07y and it all starts working again.
> > <> <>>>
> > <> <>>> 73
> > <> <>>>
> > <> <>>> Kevin WA7FWF
> > <> <>>>
> > <> <>>> _______________________________________________
> > <> <>>>
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> > <> <>>>
> > <> <>>> are solely those of the author, and do not reflect the official
> views
> > <> <>>> of AMSAT-NA.
> > <> <>>>
> > <> <>>> Not an AMSAT-NA member? Join now to support the amateur satellite
> > <> <>> program!
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> > <> <>> _______________________________________________
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> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
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> _______________________________________________
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> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
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-- 
Chris E. Thompson
chrisethompson at gmail.com
g0kla at arrl.net