[amsat-bb] Re: IC-821H Frontend Overload?
morsesat at optonline.net
Wed Mar 9 12:57:07 PST 2011
There is no 24db gain 432 preamp from ARR-They list as a 1 db difference.
You should go for the gasfet as the noise figure will be the difference. I
used one on my 821H for many years-no probs encountered.
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Mark L. Hammond
Sent: Wednesday, March 09, 2011 1:28 PM
To: Paul Delaney - K6HR
Cc: amsat-bb at amsat.org
Subject: [amsat-bb] Re: IC-821H Frontend Overload?
It's all about noise figure....I say get the AR2 SP432VDG 24db! If
the front end is "too hot" you can use crummy coax to attenuate the signal
Does the 821H have a preamp that you could turn off if necessary?
Probably won't be necessary, but just in case...
On Wed, Mar 9, 2011 at 1:11 PM, Paul Delaney - K6HR
<paul.hamradio at verizon.net> wrote:
> I'm setting up for satellite operation and considering the AR2 SP432VDG
24db preamp. A friend suggests this will likely overload the frontend of the
radio (an 821H) The antennas are M2 eggbeaters. Would the SP432VDA 15db be a
> Can anyone using these preamps give me some feedback on the 15db vs. 24db
preamps and which might be the best way to go considering the radio and
antennas I have?
> Paul Delaney
> paul.hamradio at verizon.net
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Mark L. Hammond [N8MH]
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