[Elecraft] noisy noise

[zendoc at netspace.net.au]

hi Bob,

I've used both the MFJ 1026 and ANC-4 noise cancellers for intermittent noise 
of various kinds, all coming from my neighbours.  Both units had their pros 
and cons but after using both, I can say that in practical use neither one out-
performs the other.  

The ANC-4 is more compact and more sturdily constructed, so I ended up keeping 
that.  

Neither will deal with all kinds of noise, so these units are no panacea, but 
when they do work well on a particular noise source, they work very well.  I 
have been able to reduce some S7 noise to virtually nothing.  Subjective, I 
know, but impressive when you witness the effect yourself.

My only other observation is that the noise antenna is critical.  It needs to 
be sited carefully in relation to the noise source and your station antenna 
and be broadbanded. The short lengths of wire and whip antennas supplied with 
these units are useless for anything other than local noise sources from 
within in your shack. It's worth experimenting with various noise antennas 
till you find one that works well.  Best of luck.

73,
John
VK7JB


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