In a message dated 4/25/01 9:47:36 AM GMT Daylight Time,
[email protected] writes:
<< I did some tests woith pre-amps and found out that most simple designs have
a too poor IM behaviour and make things worse instead of better. If I would
design one I would primarily aim at a high IM rejection and don't worry too
much about noise figure or gain.
If you want to use one of the monolithic amps from Mini-Circuits I would go
for something better than a MAR-6, that one has the worst IM behaviour of
all.
To compare :
>>
I have MAV11SM (65mA) and MAR3SM (35mA) devices here if you need them.
SM = surface mount.
Dave, Graham and I used a MAR3 pre-amp in Guernsey and found it overloaded
with the large signal from Lessay. The MAV11 is rated at 60mW output and may
be a better choice if you can spare the current.
73
David. G0MRF
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