The IF output on theRX366 subreceiver is the TMP next to roofing filter F2; it
with 15 in a circle next to the TMP connector. On the connector board on the
the spare RCA jack is connected to the empty TMP jack (next two others with
labled 3 and 4).
I had purchased a 500 Hz roofing filter from INRAD during their annual New
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
shows terminals 3 & 4 on the roofing filters are grounded; the INRAD filters
wide PC trace on the pins 3 & 4 which connect to the grounded terminals on the
I bought my TMP cable from INRAD when I ordered my roofing filter.
Terry Zivney, N4TZ
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