[time-nuts] Active LF Antennas

Joe Landers time at hireindex.com
Thu Jul 19 23:43:48 EDT 2007


Since the article and FAQ on the AMRAD site were
written, the split bobbin transformer is has become
available from Digi-Key. You don't have to special
order it.

If you don't want to build it yourself, Steve Ratzlaff
also makes a lowfer active whip that's used by LWCA
(Longwave Club of America) members. It's an excellent
design and works very well. You can find his address
in the Yahoo "loopantennas" group.

If you're located in an area with strong MW broadcast
signals, you'll want to think about a good LPF (low
pass filter) to cut down IMD. You can build one yourself.
Kiwa sells a nice one too.

The Wellbrook loop is also very good and has excellent
IMD characteristics. But right now, the foreign exchange
rate is a killer.


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Tom Clifton
Sent: Thursday, July 19, 2007 7:49 PM
To: time-nuts at febo.com
Subject: [time-nuts] Active LF Antennas

); SAEximRunCond expanded to false
Errors-To: time-nuts-bounces+time=hireindex.com+time=hireindex.com at febo.com

Brooke - you scored a bullseye on that one.  I had a
couple of false starts, but got an email back from
Frank Gentges suggesting I contact Far Circuits for
the PC boards ($11.50 for the set which includes
shipping). Now to obtain the rest of the parts...

I received an HP-3586C via UPS today and it is in
great shape.  Hoping to do some playing around with LF
as well as FMT with K5CM and his gang of FMT-Nuts...

So many great ideas and only 24 hours in a day...

Building a website is a piece of cake. Yahoo! Small Business gives you all
the tools to get online.

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