On 06/07/2010 07:14 PM, petev wrote:
On May 22, 7:03 pm, Bill wrote:
On 05/22/2010 04:44 PM, petev wrote:

I can vouch for the MFJ noise cancelling antenna. However, you have to
keep re-adjusting
it as you change frequency. Not by much, but it requires re-tweaking.
It makes the noise
practically dissapear, without the artifacts of a noise limiter.
Perhaps you can find one on ebay,
Or appeal to a ham club or two for a loaner or a donation.

One of my friends refers to MFJ as Mighty Fine Junk. How good is it?
Bill Baka

Some of MFJ's products are indeed questionable (like their RTTY
reader)
but the noise cancelling antenna actually works as advertised. It is
very
tweak intensive, however, and precludes casual band surfing, as the
phase
relationship between the noise and signal antennas changes as you
change frequency.

Sounds almost like work. The noise is worst at the lower frequencies but
still wreaks havoc with me even getting WWV at 10 MHz. There is one
permanent spike at the peaks of the power line, so it is something that
is being rectified, and the rest just seem random in nature. I thought
it might have been SCR noise but it doesn't follow any kind of logical
pattern. The Hammarlund's noise limiter chops the main spike but thinks
the rest is a legitimate signal.
Bill Baka