On Mon, 13 Dec 2004 20:41:01 -0500 "Jerry Keller" <k3bz@arrl.net> writes:
> Talking about "noise cancelling", what about the MFJ-1025 which
> claims to provide a "60 db null to
> wipe out noise and QRM" using a separate external receive antenna
> (maybe a beverage or a small
> loop??). It even has an "RF sense T/R switch" that "automatically
> bypasses the receiver when
> transmitting".
> Has anyone tried one of these things? Does it work at all?
Jerry,
I've never had a luck with my MFJ-1025.....ended up homebrewing my own
and it works. The thing about noise cancellers is that they cannot
cancel
noise from multiple sources unless they just happen to have the exact
same
phase and amplitude.
73, Charlie N0TT
_______________________________________________
Topband mailing list
Topband@contesting.com
http://lists.contesting.com/mailman/listinfo/topband
|