[amsat-bb] Re: New Preamp
bryantcw at cox.net
Tue Sep 18 15:15:54 PDT 2007
Dave and the BB-
The thread on antenna preamps has been very interesting and helpful to me as I'm in the final stages of] putting my satellite station on the air- [determining where to mount the antennas at the moment]. I checked your reference to Hamtronics and they are still in business and do offer a wide range of inexpensive preamps. See http://www.hamtronics.com/lnk.htm.
I wonder if anyone else has had any experience with these preamps and, if so. what were your conclusions?
Also, does anyone know how much affect pine trees have on ham satellite communications? There are two tall ones within 30 meters of where I'm considering mounting my antennas.
Thanks for all the good ideas that the BB members have shared over the years.
AMSAT member # 25030
Original Message -----
From: Dave Guimont
To: Jim Jerzycke
Cc: amsat-bb at amsat.org
Sent: Monday, September 17, 2007 10:53 PM
Subject: [amsat-bb] Re: New Preamp
At 09:25 PM 9/17/2007, you wrote:
>Welcome to the wonderful world of mast-mounted
>preamps! 90% of the people who get involved with
>satellites (INCLUDING myself) think they don't *need*
>a preamp. After doing all you can (better antenna,
>lower loss feedline, etc) to get your receive setup
>maxed out, you finally decide to "just try one; I can
>always sell it on eBay", and are usually amazed at the
>improvement it gives you.
>The _first_ thing I suggest to newcomers is to buy a
>good preamp. Sadly, most are like I was, and stumble
>around for weeks or months worrying about other things
>before finally buying one.
>Congrats, and enjoy your preamp!
>73, Jim KQ6EA
Right on the nose, Jim, and they don't have to be expensive
either,....the ones I use are from HAMTRONICS (assume they are still
in business). they are at least 20 years old, built from a kit, and
mounted in a wx proof box at the antenna, still functioning 100% and
as I remember about 18 bucks at the time. They outdid others on a
side by side coax switched test, and needless to say the owner of the
"big time charlie"was not too happy!! Hamtronics has pre-built for a
few bucks more, or did at that time...Use them, and hang just about
any kind of antenna on for what we have flying now....One made from
coat hangers would work just fine...And I've said this before.....low
loss coax, and prime connectors properly attached.
I see the "antenna discussers" on here having the time of their life,
and more power to them, probably on of the most fun parts of ham
radio for some of us, but don't forget to include and calculate LOSES
in the entire system. Your most magic antenna can go down the tubes with them.
73, Dave wb6llo at amsat.org
Disagree: I learn....
Pulling for P3E...
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