[amsat-bb] Re: QRP? (satellites).

[John Hackett]

Bruce,
         As they say where I originally come from ... "good on yer mate"... 
(your posting did an old heart good).

Please read "HOW MUCH POWER IS ENOUGH" (part 1) at 
<http://www.observations.biz/>

73 John.   <la2qaa at amsat.org>
..........................................................................................................................................

>From: Bruce Robertson <broberts at mta.ca>
>Reply-To: brobertson at mta.ca
>To: la2qaa at amsat.org
>CC: amsat-bb at amsat.org
>Subject: QRP?
>Date: Wed, 25 Apr 2007 13:29:19 -0300
>
>Quoting John Hackett <archie.hackett at hotmail.com>:
>
> > I read quite recently a post on the Amsat-bb
> >
> > wherea particular station was "explaining" that one *NEEDS* a linear
> > amplifier to work AO-7.
> >
> > Absolutely *not* true ... (using an aerial !!!!! might have
> > helped.....LA2QAA & GM1SXX).
>
>
>We should note that the same problem seems to exist on VO-52, too. About a
>week ago I monitored a pass and was astonished to see a QSO in progress
>which was about 5 S-units above the beacon. As I was trying to figure out
>what was up, the conversation revealed all: the station producing this
>formidable signal explained that it has a 22x22 beam on an az/el rotor and
>was using 20W of uplink power! The returning station, rather than
>suggesting QRP, congratulated his partner on an "excellent, strong signal"
>(which happened to be FM'ing the beacon like crazy.)
>
>As our station improves, we need to lower our uplink power to maintain the
>same EIRP. If you're a newcomer to the SSB/CW birds, don't let these
>concerns deter you from getting your feet wet: just listen for the beacon
>at the beginning of the pass, and start with a downlink signal about this
>level. Those of us who have become accustomed to satellite operation should
>have the courage to recommend lower power to those with whom we're
>conversing, and should, as always, strive to improve our reception.
>
>73, Bruce
>VE9QRP