Re: [amsat-bb] Opinion on Ampire Preamps?

[Stan <stan@xxxxxxxxxxxxxx>]

Hello Mark,

I have only seen pictures of the AMPIRE stuff and have never analyzed
them on the bench with a NF meter.

However I have looked at the Landwehr 2M and 70 cm mast mounted
preamplifiers and their in band performance is about 1 dB NF and
enough gain.. Their best quality is the out of band performance with a
high level of rejection out of band, both below and above the band of
interest.

The LANDWEHR devices are sold by Henry Radio in CA. The last time I
saw pricing, they were cost effective.

Stan, WA1ECF





mah@ieee.org wrote:
> 
> Has anyone had any experience with the Ampire 2m or 70cm mast mounted
> preamps, e.g. quality, reliability, performance, etc...
> 
> I am especially interested in feedback on the 70cm model, which is being
> considered for Mode-J operation.
> 
> Thanks,
> 
> Mark - N8VEA
> 
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