AO-51 in V/US repeater until November 1
FM Repeater, V/US Uplink: 145.920 MHz FM Downlink: 435.300 and 2401.200 MHz FM
Reports on the S band transmitter would be appreciated.
73, Drew KO4MA
On for 20:45 and 22:25 utc passes. Early one was max elevation of 15 degrees next one nearly overhead pass. Receiving with 52 turn helix with cup reflector No signal background noise is S1. Max sig on 15 degree el pass was S6 and on near overhead was S9 + 10db. Had 2 QSOs on low pass and 4 on high pass. S band transmitter sounds good. 2 meter uplink power is as low as it will go on FT-847 (2 watts) into 2 X 6 el linear Quagis.
Tnx Drew.
Clare VE3NPC
----- Original Message ----- From: "Andrew Glasbrenner" [email protected] To: "Amsat-BB" [email protected] Sent: Sunday, October 25, 2009 7:34 PM Subject: [amsat-bb] AO-51 in V/US repeater until November 1
FM Repeater, V/US Uplink: 145.920 MHz FM Downlink: 435.300 and 2401.200 MHz FM
Reports on the S band transmitter would be appreciated.
73, Drew KO4MA
Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
I tried a test on the last pass that was from horizon to 80 degrees. I have a BBQ dish that is mounted horizontally and could barely hear the pass until it was almost over head. On the 27 turn helix, I head the signals at about S5 at 10 degrees and S9+ from 20 degrees until maximum.
is this typical with a helix and a BBQ dish? I was surprised that it was so different. This was a good test for those of us perfecting our S modes.
Thanks Greg N3MVf
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Clare Fowler Sent: Monday, October 26, 2009 6:47 PM To: Andrew Glasbrenner; Amsat-BB Subject: [amsat-bb] Re: AO-51 in V/US repeater until November 1
On for 20:45 and 22:25 utc passes. Early one was max elevation of 15 degrees next one nearly overhead pass. Receiving with 52 turn helix with cup reflector No signal background noise is S1. Max sig on 15 degree el pass was S6 and on near overhead was S9 + 10db. Had 2 QSOs on low pass and 4 on high pass. S band transmitter sounds good. 2 meter uplink power is as low as it will go on FT-847 (2 watts) into 2 X 6 el linear Quagis.
Tnx Drew.
Clare VE3NPC
----- Original Message ----- From: "Andrew Glasbrenner" [email protected] To: "Amsat-BB" [email protected] Sent: Sunday, October 25, 2009 7:34 PM Subject: [amsat-bb] AO-51 in V/US repeater until November 1
FM Repeater, V/US Uplink: 145.920 MHz FM Downlink: 435.300 and 2401.200 MHz FM
Reports on the S band transmitter would be appreciated.
73, Drew KO4MA
Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
_______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
8 turn helix on K5GNA D/C, with 40' run of 9913 to FT736 ( my 2.4 and 1.2 GHz setup ) gave same audio performance at the 435.300 on the FT847 with preamp - excellent signal on both, full quite most of the time when receiving.
http://picasaweb.google.com/ve4yz.alan/VE4YZ#5202556475297897490 this is last years photo using RG6 which has been replaced.
Ran them side by side on the 22:20 pass... Too busy relearning to do manual Doppler on the 2.4GHz link to note S readings. Got Clare VE4NPC okay but missed completing full QSO with a couple of others do to lack of a 3rd hand.
It is 00:02 and I hear it coming up again. Will watch S readings this time.
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Clare Fowler Sent: October 26, 2009 5:47 PM To: Andrew Glasbrenner; Amsat-BB Subject: [amsat-bb] Re: AO-51 in V/US repeater until November 1
On for 20:45 and 22:25 utc passes. Early one was max elevation of 15 degrees next one nearly overhead pass. Receiving with 52 turn helix with cup reflector No signal background noise is S1. Max sig on 15 degree el pass was S6 and on near overhead was S9 + 10db. Had 2 QSOs on low pass and 4 on high pass. S band transmitter sounds good. 2 meter uplink power is as low as it will go on FT-847 (2 watts) into 2 X 6 el linear Quagis.
Tnx Drew.
Clare VE3NPC
----- Original Message ----- From: "Andrew Glasbrenner" [email protected] To: "Amsat-BB" [email protected] Sent: Sunday, October 25, 2009 7:34 PM Subject: [amsat-bb] AO-51 in V/US repeater until November 1
FM Repeater, V/US Uplink: 145.920 MHz FM Downlink: 435.300 and 2401.200 MHz FM
Reports on the S band transmitter would be appreciated.
73, Drew KO4MA
Sent via [email protected]. Opinions expressed are those
of the author.
Not an AMSAT-NA member? Join now to support the amateur
satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
On 25 Oct 2009 at 19:34, Andrew Glasbrenner wrote:
Date sent: Sun, 25 Oct 2009 19:34:44 -0400 From: Andrew Glasbrenner [email protected] Subject: [amsat-bb] AO-51 in V/US repeater until November 1 To: Amsat-BB [email protected]
FM Repeater, V/US Uplink: 145.920 MHz FM Downlink: 435.300 and 2401.200 MHz FM
Reports on the S band transmitter would be appreciated.
73, Drew KO4MA
Signal was as usual "strong on S band" on the 0800edt but audio was a bit louder than the UHF downlink.
"-"
Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe DSTAR urcall VE2DWE WAC BASIC CW PHONE SATELLITE
I appreciate the reports about S band. As you might have surmised, in this mode we are running without live telemetry. This configuration comes pretty close to using the maximum available power. If the voltage drops below a certain set point, the S band transmitter will trip off, and the satellite internals will heat up significantly with the reduced load. We want to avoid this if at all possible. Having daily reports from around the globe that the S transmitter is still on is a valuable asset to the command team. I just thought a little explanation was in order. Thanks to all that have sent reports to me or the -bb.
73, Drew KO4MA
participants (5)
-
Alan VE4YZ -
Andrew Glasbrenner -
Clare Fowler -
Greg Dober -
Luc Leblanc