About mid-pass on the ~9:42AM pass this morning, FOX appeared to switch from the DUV mode to what I believe was high speed. The screen pattern changed from the usual 2 parallel line pattern (good eye pattern and decoding) to a multi-parallel-line pattern with brief stops. My tlm program 1.03f was set on auto. Nothing decoded; no eye pattern. I manually switched to high speed; same results. What did I do wrong?
Thanks, Ed K9EK EL98
Hi Ed,
That is what HS looks like. There have been 2-3 other periods of HS telemetry over the past few days. In the ones I saw or heard, my software did not automatically switch, and when manually switched copied nothing. There are known issues with HS in my station which I am working on, so that is not entirely unexpected. I was able to copy a few blocks on a much earlier test. From other comments, you do need a stronger signal than DUV, and depending on your equipment, a higher sampling rate.
73s,
Alan WA4SCA
<-----Original Message----- <From: AMSAT-BB [mailto:[email protected]] On Behalf Of Ed K9EK <Sent: Friday, March 25, 2016 9:59 AM <To: AMSAT-BB [email protected] <Subject: [amsat-bb] Fox high speed? < <About mid-pass on the ~9:42AM pass this morning, FOX appeared to switch from the DUV mode to <what I believe was high speed. The screen pattern changed from the usual 2 parallel line pattern (good <eye pattern and decoding) to a multi-parallel-line pattern with brief stops. My tlm program 1.03f was <set on auto. Nothing decoded; no eye pattern. I manually switched to high speed; same results. What <did I do wrong? < <Thanks, <Ed K9EK <EL98 <_______________________________________________ <Sent via [email protected]. 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! <Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Hi Alan Thanks for the note. I, too, have successfully received high speed telemetry in the past, although it has been a while. Wonder what changed. Maybe Drew can point us in the right direction. 73, Ed Krome K9EK Sent from my iPhone
On Mar 25, 2016, at 11:23 AM, Alan [email protected] wrote:
Hi Ed,
That is what HS looks like. There have been 2-3 other periods of HS telemetry over the past few days. In the ones I saw or heard, my software did not automatically switch, and when manually switched copied nothing. There are known issues with HS in my station which I am working on, so that is not entirely unexpected. I was able to copy a few blocks on a much earlier test. From other comments, you do need a stronger signal than DUV, and depending on your equipment, a higher sampling rate.
73s,
Alan WA4SCA
<-----Original Message----- <From: AMSAT-BB [mailto:[email protected]] On Behalf Of Ed K9EK <Sent: Friday, March 25, 2016 9:59 AM <To: AMSAT-BB [email protected] <Subject: [amsat-bb] Fox high speed? < <About mid-pass on the ~9:42AM pass this morning, FOX appeared to switch from the DUV mode to <what I believe was high speed. The screen pattern changed from the usual 2 parallel line pattern (good <eye pattern and decoding) to a multi-parallel-line pattern with brief stops. My tlm program 1.03f was <set on auto. Nothing decoded; no eye pattern. I manually switched to high speed; same results. What <did I do wrong? < <Thanks, <Ed K9EK <EL98 <_______________________________________________ <Sent via [email protected]. 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! <Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Ed,
Not sure what your setup is, but be sure your bandwidth is 11-12k for High Speed. If you run the FCDP+ direct from FoxTelem then that is taken care of, if you use SDR# or HDSDR or other software then you may have it set (or it may default) to a narrower filter in NFM mode.
Jerry Buxton, NØJY
On 3/25/2016 13:53, Ed Krome wrote:
Hi Alan Thanks for the note. I, too, have successfully received high speed telemetry in the past, although it has been a while. Wonder what changed. Maybe Drew can point us in the right direction. 73, Ed Krome K9EK Sent from my iPhone
On Mar 25, 2016, at 11:23 AM, Alan [email protected] wrote:
Hi Ed,
That is what HS looks like. There have been 2-3 other periods of HS telemetry over the past few days. In the ones I saw or heard, my software did not automatically switch, and when manually switched copied nothing. There are known issues with HS in my station which I am working on, so that is not entirely unexpected. I was able to copy a few blocks on a much earlier test. From other comments, you do need a stronger signal than DUV, and depending on your equipment, a higher sampling rate.
73s,
Alan WA4SCA
<-----Original Message----- <From: AMSAT-BB [mailto:[email protected]] On Behalf Of Ed K9EK <Sent: Friday, March 25, 2016 9:59 AM <To: AMSAT-BB [email protected] <Subject: [amsat-bb] Fox high speed? < <About mid-pass on the ~9:42AM pass this morning, FOX appeared to switch from the DUV mode to <what I believe was high speed. The screen pattern changed from the usual 2 parallel line pattern (good <eye pattern and decoding) to a multi-parallel-line pattern with brief stops. My tlm program 1.03f was <set on auto. Nothing decoded; no eye pattern. I manually switched to high speed; same results. What <did I do wrong? < <Thanks, <Ed K9EK <EL98 <_______________________________________________ <Sent via [email protected]. 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! <Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. 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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Hi Jerry I was running HDSDR with 12kHz bandwidth. The BW appeared to cover all of the parallel signal tracks. I will try FCD P+ by itself; I know that worked last time (months ago) I tried it. Thanks! Ed K9EK
----- Original Message -----
From: "Jerry Buxton" [email protected] To: "AMSAT-BB" [email protected] Sent: Friday, March 25, 2016 3:38:44 PM Subject: Re: [amsat-bb] Fox high speed?
Ed,
Not sure what your setup is, but be sure your bandwidth is 11-12k for High Speed. If you run the FCDP+ direct from FoxTelem then that is taken care of, if you use SDR# or HDSDR or other software then you may have it set (or it may default) to a narrower filter in NFM mode.
Jerry Buxton, NØJY
On 3/25/2016 13:53, Ed Krome wrote:
Hi Alan Thanks for the note. I, too, have successfully received high speed telemetry in the past, although it has been a while. Wonder what changed. Maybe Drew can point us in the right direction. 73, Ed Krome K9EK Sent from my iPhone
On Mar 25, 2016, at 11:23 AM, Alan [email protected] wrote:
Hi Ed,
That is what HS looks like. There have been 2-3 other periods of HS telemetry over the past few days. In the ones I saw or heard, my software did not automatically switch, and when manually switched copied nothing. There are known issues with HS in my station which I am working on, so that is not entirely unexpected. I was able to copy a few blocks on a much earlier test. From other comments, you do need a stronger signal than DUV, and depending on your equipment, a higher sampling rate.
73s,
Alan WA4SCA
<-----Original Message----- <From: AMSAT-BB [mailto:[email protected]] On Behalf Of Ed K9EK <Sent: Friday, March 25, 2016 9:59 AM <To: AMSAT-BB [email protected] <Subject: [amsat-bb] Fox high speed? < <About mid-pass on the ~9:42AM pass this morning, FOX appeared to switch from the DUV mode to <what I believe was high speed. The screen pattern changed from the usual 2 parallel line pattern (good <eye pattern and decoding) to a multi-parallel-line pattern with brief stops. My tlm program 1.03f was <set on auto. Nothing decoded; no eye pattern. I manually switched to high speed; same results. What <did I do wrong? < <Thanks, <Ed K9EK <EL98 <_______________________________________________ <Sent via [email protected]. 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! <Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. 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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
_______________________________________________ Sent via [email protected]. 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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
I run about 15KHz wide. The SNR needs to be 7db or so on the telemetry program before it decodes.
73, Drew KO4MA
Sent from my iPhone
On Mar 25, 2016, at 4:49 PM, Ed K9EK [email protected] wrote:
Hi Jerry I was running HDSDR with 12kHz bandwidth. The BW appeared to cover all of the parallel signal tracks. I will try FCD P+ by itself; I know that worked last time (months ago) I tried it. Thanks! Ed K9EK
----- Original Message -----
From: "Jerry Buxton" [email protected] To: "AMSAT-BB" [email protected] Sent: Friday, March 25, 2016 3:38:44 PM Subject: Re: [amsat-bb] Fox high speed?
Ed,
Not sure what your setup is, but be sure your bandwidth is 11-12k for High Speed. If you run the FCDP+ direct from FoxTelem then that is taken care of, if you use SDR# or HDSDR or other software then you may have it set (or it may default) to a narrower filter in NFM mode.
Jerry Buxton, NØJY
On 3/25/2016 13:53, Ed Krome wrote: Hi Alan Thanks for the note. I, too, have successfully received high speed telemetry in the past, although it has been a while. Wonder what changed. Maybe Drew can point us in the right direction. 73, Ed Krome K9EK Sent from my iPhone
On Mar 25, 2016, at 11:23 AM, Alan [email protected] wrote:
Hi Ed,
That is what HS looks like. There have been 2-3 other periods of HS telemetry over the past few days. In the ones I saw or heard, my software did not automatically switch, and when manually switched copied nothing. There are known issues with HS in my station which I am working on, so that is not entirely unexpected. I was able to copy a few blocks on a much earlier test. From other comments, you do need a stronger signal than DUV, and depending on your equipment, a higher sampling rate.
73s,
Alan WA4SCA
<-----Original Message----- <From: AMSAT-BB [mailto:[email protected]] On Behalf Of Ed K9EK <Sent: Friday, March 25, 2016 9:59 AM <To: AMSAT-BB [email protected] <Subject: [amsat-bb] Fox high speed? < <About mid-pass on the ~9:42AM pass this morning, FOX appeared to switch from the DUV mode to <what I believe was high speed. The screen pattern changed from the usual 2 parallel line pattern (good <eye pattern and decoding) to a multi-parallel-line pattern with brief stops. My tlm program 1.03f was <set on auto. Nothing decoded; no eye pattern. I manually switched to high s
Alan,
A few days ago the satellite switched from DUV to HS shortly before my LOS. The program was set to "auto" and I was able to decode and uploaded my first six frames of HS data. Using V:1.03-h, the s/w worked as expected..
Bob Vislay KO6TZ
Hi Ed,
That is what HS looks like. There have been 2-3 other periods of HS telemetry over the past few days. In the ones I saw or heard, my software did not automatically switch, and when manually switched copied nothing. There are known issues with HS in my station which I am working on, so that is not entirely unexpected. I was able to copy a few blocks on a much earlier test. From other comments, you do need a stronger signal than DUV, and depending on your equipment, a higher sampling rate.
73s,
Alan WA4SCA
<-----Original Message----- <From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of Ed K9EK <Sent: Friday, March 25, 2016 9:59 AM <To: AMSAT-BB <amsat-bb at amsat.org> <Subject: [amsat-bb] Fox high speed? < <About mid-pass on the ~9:42AM pass this morning, FOX appeared to switch from the DUV mode to <what I believe was high speed. The screen pattern changed from the usual 2 parallel line pattern (good <eye pattern and decoding) to a multi-parallel-line pattern with brief stops. My tlm program 1.03f was <set on auto. Nothing decoded; no eye pattern. I manually switched to high speed; same results. What <did I do wrong? < <Thanks, <Ed K9EK <EL98
participants (6)
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Alan -
Andrew Glasbrenner -
Ed K9EK -
Ed Krome
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Jerry Buxton -
KO6TZ Bob