Hi,
AO-85 COR mode was working fine in its last pass over Europe (about 15:52 UTC). Plenty of stations where using the transponder and it seems that most sounded quite good without the DUV telemetry.
Hitting the transponder with my handheld arrow and 5W didn't seem more difficult than usual, perhaps even a bit easier.
73,
Dani M0HXM/EA4GPZ.
Thanks for the reports James, Alan, Dani.
Please let us know via -bb what your experience is if you caught AO-85 on this current orbit 443. We will do another test over the U.S. beginning about 17:15 UTC.
U.S. STATIONS PLEASE KEEP THE UPLINK CLEAR! We had some competition that affected our low power testing during this first pass. The longer it takes us to test, the longer it will be before AO-85 is commissioned and we can turn it over to Operations for scheduling. We are trying to characterize the uplink sensitivity, and can't do that if other stations are trying to use the bird causing QRM.
Thank you.
Jerry Buxton, NØJY
On 11/8/2015 10:18, Daniel Estévez wrote:
Hi,
AO-85 COR mode was working fine in its last pass over Europe (about 15:52 UTC). Plenty of stations where using the transponder and it seems that most sounded quite good without the DUV telemetry.
Hitting the transponder with my handheld arrow and 5W didn't seem more difficult than usual, perhaps even a bit easier.
73,
Dani M0HXM/EA4GPZ. _______________________________________________ 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
Jerry,
Sorry for the tardiness in this post to the AMSAT-BB list. I heard you and KO4MA talking during the 1715 UTC AO-85 pass this morning. I was listening with my SDRplay receiver, HDSDR software, and Elk log periodic out in my yard. I made an RF recording with HDSDR, and posted the RF recording where you two were testing the satellite (along with the RF recording from the 1855 UTC AO-85 pass, and other files related to these two passes) in my Dropbox space at:
Look for the 20151108 folder with the name ending in DM43 to get to these files.
Late in the 1715 UTC pass, I saw and heard AO-85 change back to the normal mode with the FM transponder with slow-speed telemetry. I did not run FoxTelem in real time during the pass, but made sure to run my RF recording through FoxTelem after the pass to get the data I received up to the AMSAT server. It was easy to see in the HDSDR waterfall the difference between the normal mode with telemetry and the COR mode without any telemetry - especially how the downlink transmitter ramps up to the nominal downlink frequency, every time it fires up.
73!
Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ Twitter: @WD9EWK
On Sun, Nov 8, 2015 at 4:32 PM, Jerry Buxton [email protected] wrote:
Thanks for the reports James, Alan, Dani.
Please let us know via -bb what your experience is if you caught AO-85 on this current orbit 443. We will do another test over the U.S. beginning about 17:15 UTC.
U.S. STATIONS PLEASE KEEP THE UPLINK CLEAR! We had some competition that affected our low power testing during this first pass. The longer it takes us to test, the longer it will be before AO-85 is commissioned and we can turn it over to Operations for scheduling. We are trying to characterize the uplink sensitivity, and can't do that if other stations are trying to use the bird causing QRM.
Thank you.
Jerry Buxton, NØJY
participants (3)
-
Daniel Estévez -
Jerry Buxton -
Patrick STODDARD (WD9EWK/VA7EWK)