[TowerTalk] Mains Filter for 80M
w5ifp at gvtc.com
Fri Jun 8 08:41:24 PDT 2012
I use an ISOBAR IB-4 dual stage line filter.
It is a combination noise and surge protector.
I don't have any literature for it, but a similiar filter is shown at:
Several different models are shown at:
The one I have is a dual stage and is rated: 1st stage - 50 db noise
rejection @ 1 Mhz. 2nd stage - 75 db.
I run all my computer and radio gear on this filter. However, I have
separate filtering for the linear amps.
These are usually available at computer and office stores. Not cheap, but
very effective and long lasting.
73s de Jim
> On 6/8/2012 6:20 PM, Wayne Willenberg wrote:
> > I am putting up an 80M dipole at 65 ft and a Beverage antenna for
> > receiving. In doing my homework for this project, I have been reading
> > ON4UN's book "Low-Band DXing."
> > On page 7-75, the author states "It is essential to feed the
> equipment at
> > the shack through high-quality mains filters..."
> > Would someone please give me a recommendation for such a
> "mains filter"?
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