[Elecraft] OT: Anyone use a noise canceller?

[Vic K2VCO]

Mark Hampton wrote:
> Hi all, I have a S-9 noise level across the bands and despite some
> detective work, I have been unable to locate the source.
> 
> I feel that I may have to resort to using a noise canceller in order
> to use the bands at the home QTH.
> 
> Before I purchase one, I'm wondering if any of the subscribers to
> this list use one and if so, how effective are they?
> 
> Apologies for the off-topic post but I though I'd canvass opinions
> before I buy one.

I have the MFJ. It is quite effective for noises generated by nearby 
sources, although you have to fiddle with the knobs a bit for each 
individual noise.

The biggest problem is that it has to be in the line to the antenna and 
has to switch itself in and out on receive/transmit. This may not be a 
big problem with PTT SSB, but it's a bother on CW and pretty much 
prevents QSK -- unless you have a rig like the K3 with KXV3 which has 
receiver antenna in and out connections.
-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco