Hello to all,
In some previous messages on this reflector I received the following
information from Dale WA2ENA.
Isolation of typical braided shield coax (in the HF range): 70 to 90 dB
(varies with construction and type of braid)
Isolation of commercial shielding "boxes" or enclosures: 100+ dB, except
for any penetrations
All interconnects BETWEEN the filters and receivers done using hard
line and nothing but Type-N connectors. (Use regular coax between the
relays and the filters, and between the relays and the antennas. Again,
the antenna isolation is the lowest denominator, so put the bucks where
they are needed.)
Isolation of hard line: 100 to 120+ dB (except for leakage at connectors)
All very helpful information. Thanks again Dale.
>From these note my next question is:
What is the expected leakage at a PL259-SO239 connection?
RF line is 9913 or LMR400.
What is the expected leakage at a Male-Female N connection?
RF line is Andrew Heliax (hard line).
Thanks again,
Rich AA2MF
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