At 1/11/2009 06:12, you wrote:
Correct, here is the order info sheet from the wayback machine
73, Joe, K1ike
OK, is it just me or is there NO noise figure spec. in any of these documents?
My guess is that the GLB preselector consists of the filter followed by the
preamp. Also because of
skip I opened up My 2 meter GLB preamp preselector.
it is an MRF-901.
Years ago there was an article in one of the Ham radio handbooks
that showed a 4 element UHF preamp/preselector that I built for ATV use.
and it too was based on an MRF-901. It worked great.
GaSfets I feel have too much gain,
skipp025 wrote:
Re: GLB Preamplifier - Preamp Device (transistor) Information
This is how I remember it.
From GLB, any preselector-preamp built below 200 MHz used the Bi-Polar
MRF-901. You could, however, have any frequency preamp built with a
GaAs FET if you paid extra for the
What is the NF of a stock UHF Micor/Mitrek/MASTR II? Anyone ever measured it?
My experience has been that 16 dB gain provides a noticeable improvement, but a
low NF is the real key to success. If the preamp gain is higher than 20 dB,
it's easy to put an attenuator between the output of the
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