Difference between revisions of "MPPA-Modifications"

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[[File:MPPA_FreqResponse_1to55MHz.png]]
 
[[File:MPPA_FreqResponse_1to55MHz.png]]
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[[Category:HiQSDR-MPPA]]

Latest revision as of 20:35, 12 June 2014

MPPA Modifications to get flat frequency response: --DB1CC (talk) 13:12, 31 May 2014 (MEST)

Please replace inductors L1,L2,L3,L4 with 0-Ohm resistors
and remove C17 completely. See the modification on the Silk screen here:

MPPA Mod 1 6 14.png



After modification, the frequency response will be typical flat
with a slight gain improvement around 50MHz to compensate for losses at 6m


MPPA FreqResponse 1to55MHz.png