Greetings,
I was listening to 2.4012-GHz +/- doppler FM-mode with my K5GNA/AIDC downconverter at the focus of a Starband .75-m x 1.0-m ellptical dish, I never heard myself (145.88-MHz up) but transmitted only a few times. However, I did hear strong "digital" signals at max. EL. for about 30-s on two passes last evening and fairly strong quieting at times. No voices heard at all, however. I have heard nothing but white noise monitoring 2.4012-GHz when AO-51 is below the horizon so pretty sure it was AO-51 and not terrestrial. Without a regular beacon signal in space it is very hard to be sure if all my equipment is working, however. I do have a Gardiner down-converter 2.4-GHz signal source so pretty sure my LO value is correct to a few KHz.
Anybody willing to admit to Tx'ing digital or anything else last evening on east-coast U.S. passes to confirm that my 2.4-GHz equipment is really working?
73, KG4QWC (FM18)
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On 24 May 2007 at 10:39, DeYoung James wrote:
Greetings,
I was listening to 2.4012-GHz +/- doppler FM-mode with my K5GNA/AIDC downconverter at the focus of a Starband .75-m x 1.0-m ellptical dish, I never heard myself (145.88-MHz up) but transmitted only a few times. However, I did hear strong "digital" signals at max. EL. for about 30-s on two passes last evening and fairly strong quieting at times. No voices heard at all, however. I have heard nothing but white noise monitoring 2.4012-GHz when AO-51 is below the horizon so pretty sure it was AO-51 and not terrestrial. Without a regular beacon signal in space it is very hard to be sure if all my equipment is working, however. I do have a Gardiner down-converter 2.4-GHz signal source so pretty sure my LO value is correct to a few KHz.
Anybody willing to admit to Tx'ing digital or anything else last evening on east-coast U.S. passes to confirm that my 2.4-GHz equipment is really working?
73, KG4QWC (FM18)
Just to confirm i was on th2 2 morning pass one nearly overhead and another ay 18 deg max i used to get s9+20 signal when AO-51 was overhead but with deep fade i was testting an old BBQ grill with the same K5GNA downconverter but results where a bit on the low side comparing with a 7.5 foot dish. i make two contact with: WD9EWK and W7JPI
"-" "It is not the class of license the amateur holds, but the class of the amateur that holds the license."
Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe WAC BASIC CW PHONE SATELLITE
Hi!
Anybody willing to admit to Tx'ing digital or anything else last evening on east-coast U.S. passes to confirm that my 2.4-GHz equipment is really working?
I didn't hear any digital stuff on a pass around 0253-0308 UTC (Wednesday evening, local time) that was to the east of me (DM43ao) with maximum elevation of 69 degrees. I went back to my recording to make sure, and there were voices and no digital noise. I also heard the pass at 0434 UTC to my west, but had antenna issues with my downconverter and barely heard W7JPI near the midpoint of that low (13 degrees maximum elevation) pass.
As previously mentioned, AO-51 V/S was still on this morning for a 26-degree pass around 1505 UTC. I worked VE2DWE (FN36), W7JPI (DM41), WB6QVU (CM98), and N5AFV (EL29) from a park near my house in DM33xp and DM43ap. I also heard N5ZNL, but he never responded to anyone that called him. No digital noise on that pass, either. The lower passes are easier for me to keep up with the 2.4 GHz Doppler and antenna pointing.
I'm using an AIDC3731 downconverter modified by K5GNA, and most of the time with the TranSystem 2.4 GHz dipole along with a corner reflector on the end of the unit. On 2 passes yesterday, I tried a Linksys HGA7T 2.4 GHz "7dBi gain" duckie in place of the dipole, with so-so results. Time to try other WiFi antennas on future AO-51 V/S sessions.
73!
Patrick WD9EWK/VA7EWK - Phoenix, Arizona USA http://www.wd9ewk.net/
participants (3)
-
DeYoung James -
Luc Leblanc -
Patrick STODDARD (WD9EWK/VA7EWK)