[1000mp] INRADS Roofing Filter

[Thomas Otterbein]

Hi Bob, 
due to missing measuring instruments, I compared before installing the 
Roofing Filter The FT100 MP MkV Field with the FT897D, for noise and 
for the sensitivity.

I guess the Roofing Filter brings some db amplifying for the filter
losses. The sensitivity, compared with the first comparison with the
FD897D brings no benefit or losses. It is the same.

>>Dumb question, if you cut back on the IF-Gain BEFORE you install
>>the roofing filter won't that also cut back on the noise?

Yes....it would.

73 de Thomas
DG8FBV
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