[R-390] 8k filter

David Wise [email protected]
Wed, 12 Feb 2003 14:28:22 -0800


> From: MURPH [mailto:[email protected]]
>=20
>         Has
> anyone experienced a decrease in signal strength of about 20=20
> db in the 8k
> filter position? Sometimes mine will read like the other=20
> filter (within +
> - 2db) positions until the radio is turned off, then back to the 20db
> decrease.

When I had this symptom, it turned out that one
of the mica capacitors used to tune the input and
output coils of the filter had gone intermittent.

73,
Dave Wise