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CX2SA > SATDIG 21.01.12 21:05l 98 Lines 3188 Bytes #999 (0) @ WW
BID : AMSATBB738
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Subj: AMSAT-BB-digest V7 38
Path: IZ3LSV<IW0QNL<IK6ZDE<VE2PKT<CX2SA
Sent: 120121/2002Z @:CX2SA.SAL.URY.SA #:48134 [Salto] FBB7.00e $:AMSATBB738
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: Hamtronics receive converters (Craig Gagner)
2. Re: Thanks for all the ... (Patrick STODDARD (WD9EWK/VA7EWK))
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Message: 1
Date: Sat, 21 Jan 2012 14:26:04 -0500
From: "Craig Gagner" <crgagner@xxxxxxx.xxx>
To: "'John Geiger'" <aa5jg@xxxxxxx.xxx>, "'AMSAT-BB'"
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Hamtronics receive converters
Message-ID: <687A1489664946E3BD2895DF97CB7177@xxxxxxx>
Content-Type: text/plain; charset="us-ascii"
I don't think they make them any longer but I just purchased the High Sierra
Microwave 435M7 to use on my TS-2000 and it works Great. No more birdie on
the TS-2000.
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of John Geiger
Sent: Friday, January 20, 2012 11:27 AM
To: AMSAT-BB
Subject: [amsat-bb] Hamtronics receive converters
Does anyone know if Hamstronics has made a UHF receive converter? The
currently make one for 2m, but I would like one to use for FO29, if
possible.
73s John AA5JG
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Message: 2
Date: Sat, 21 Jan 2012 12:27:24 -0700
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Thanks for all the ...
Message-ID:
<CAN6TEUenJ6w8HCU4HU8=OkAeB6sZAQFAi9CmD7Fb54OTG3pJLw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi Andre!
> Good point, a preamp is to cancel out the cable losses, anymore and you are
> just boosting the background noise and not improving the reception.
> So if your cable is very short there is not point in using a preamp.
I have never used a preamp when working satellites. If your station -
radio(s), antenna(s), and feedline - are good enough, you may not need
to invest in preamps.
> I even dare to say that you can have more succes using a portable setup then
> a fixed instalation with preamps and elevation rotors because you can adjust
> polarisation, theoreticly this can give a gain upto 30 dB, in practice
> somewhere between 3 and 9 dB.
Very true! I'm working with portable setups, even from my back yard
like I showed in the videos I posted earlier today, and do well without
preamps. I use short RG58 coax runs - 10 feet (3m) from antenna to
radio or diplexer, and 3 feet (1m) from diplexer to radios if I am
working SSB/CW. Modifying K4FEG's statement to "YOU *MAY*
NEED A PREAMP" would be more accurate.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
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End of AMSAT-BB Digest, Vol 7, Issue 38
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