[hpsdr] NOT Hpsdr PA3AKE High Dynamic Front-End

[Giancarlo Moda]

Yes, again about the H-Mode Mixer but this time A High
Dynamic Range Front-End by Martein Bakker, PA3AKE.

Martein has just released a complete update of his
High performance Down Conversion Front-End design
based on the G3SBI H-Mode Mixer. All the information
and measurements from 160m to 6m are reported. With a
very extensive serial of additional comments. This is
not “ham poetry” but real stuff as you can see
pictures of the front end unit, from input band pass
filters to the roofing IF filter.
We can see how we can achieve >120dB of dynamic range
on 40m SSB bandwidth with no special surplus or very
expensive components.

There is a lot to read also for those that visited in
the past PA3AKE web page:

http://www.xs4all.nl/~martein/pa3ake/hmode/index.html

73

Gian
I7SWX



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