The IF output on theRX366 subreceiver is the TMP next to roofing filter F2; it
is marked
with 15 in a circle next to the TMP connector. On the connector board on the
back panel,
the spare RCA jack is connected to the empty TMP jack (next two others with
coaxes
labled 3 and 4).
I had purchased a 500 Hz roofing filter from INRAD during their annual New
Year's
day sale - $20.12 off. There is a little piece of paper saying that if the
filter functions in
only one direction, so if the radio doesn't work, turn the filter around. The
RX366 board
shows terminals 3 & 4 on the roofing filters are grounded; the INRAD filters
have a
wide PC trace on the pins 3 & 4 which connect to the grounded terminals on the
rig.
I bought my TMP cable from INRAD when I ordered my roofing filter.
Terry Zivney, N4TZ
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