Ed,

The satellite is on over the continental U.S. on ascending passes (S to N). If the satellite's clock is perfectly synchronized with the schedule (which it usually isn't - sometimes it is a minute or a few off), you would expect to initially hear silence at 20:59, one minute of digital telemetry starting at 21:00:46, seven minutes of the FM repeater starting at 21:01:06, and then another minute of digital telemetry starting at 21:08:06.

73, Zach KM7I Seattle, WA CN87vr

On Nov 10, 2007 10:57 AM, Ed Tump [email protected] wrote:

Folks,

If I read this right, the satellite will not be "on" during the pass over my home:

AO27 schedule UTC

Sat Nov 10 19:19:57 2007 Digital Med

Sat Nov 10 19:20:17 2007 Analogue Med

Sat Nov 10 19:27:17 2007 Digital Med

Sat Nov 10 19:28:17 2007 OFF

Sat Nov 10 21:00:46 2007 Digital Med

Sat Nov 10 21:01:06 2007 Analogue Med

Sat Nov 10 21:08:06 2007 Digital Med

Sat Nov 10 21:09:06 2007 OFF

The pass over my house is listed on Orbitron as happening at 20:59 UTC.

Does my figuring make sense?

Thanks,

Ed

KC9GWK New AmSat member

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It won't be when it first "appears" at your horizon but it will go to the Digital Med then Analogue Med during the pass. Orbitron should give you the total time you'll "see" the satellite.

You'll initially hear silence, then digital for 1 minute then you should hopefully hear voice.

Hope that helps!

Jeremy KB9QIC

-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ed Tump Sent: Saturday, November 10, 2007 12:57 PM To: [email protected] Subject: [amsat-bb] Help with AO27

Folks,

If I read this right, the satellite will not be "on" during the pass over my home:

AO27 schedule UTC

Sat Nov 10 19:19:57 2007 Digital Med

Sat Nov 10 19:20:17 2007 Analogue Med

Sat Nov 10 19:27:17 2007 Digital Med

Sat Nov 10 19:28:17 2007 OFF

Sat Nov 10 21:00:46 2007 Digital Med

Sat Nov 10 21:01:06 2007 Analogue Med

Sat Nov 10 21:08:06 2007 Digital Med

Sat Nov 10 21:09:06 2007 OFF

The pass over my house is listed on Orbitron as happening at 20:59 UTC.

Does my figuring make sense?

Thanks,

Ed

KC9GWK New AmSat member

_______________________________________________ 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