[amsat-bb] Re: Diffference between high and low power modes on ARRISat-1

[Alan P. Biddle]

Mike,

High and low power refers more accurately to power consumption rather than
transmitted power.  Low power means a less than 100% duty cycle.  Many of
the popular tracking programs such as SATPC32 and MacDoppler will tell you
when the satellite is in daylight or eclipsed.  A spacecraft is often
illuminated when the ground track is in darkness, though the passes you
mentioned would be in eclipse.

73s,

Alan
WA4SCA

 

-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Mike Ryan
Sent: Monday, August 08, 2011 10:09 PM
To: amsat-bb at amsat.org
Subject: [amsat-bb] Diffference between high and low power modes on
ARRISat-1

Whats the difference between high and low power mode? I know its determined
by being in eclipse or not and I believe high power is 0.5 W on SSB and FM.
But no luck in finding more info than that on the web about power.

So far, all passes I've been able to copy here Eastern US are late at night
(11PM-1AM) so I'm assuming I'm getting low power mode. 

Mike WB1AAT
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