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Re: [Yaesu] Noise blanker recommendations

To: John Geiger <af5cc2@gmail.com>
Subject: Re: [Yaesu] Noise blanker recommendations
From: sq7d@onet.pl
Date: Mon, 23 Oct 2017 11:03:18 +0200
List-post: <mailto:yaesu@contesting.com>


Here is a sample of NB from 9000D on 80m with dipole (quiet) and vertical 

https://www.youtube.com/watch?v=yAwop_nj p4M&t=80s

Matt SQ7D/SN7D

 I was making a rather serious (given my small antennas) effort today in the

Illinois QSO Party and had to deal with this intermittent noise I have here

for pretty much the entire contest.  It is a raspy, hash type noise that

will be on for 2 or 3 seconds, then will end, but come back every 20 to 30

seconds.  I  have figured out it is not in my house, and doesn't seem to be

power line noise.  At one time I thought I had localized it to a house

about 4 houses to the west of me, but the house is now unoccupied, but the

noise is still there.

Anyways, I was using the Kenwood TS950SD which I just picked up, and it is

a great rig with lots of receiver tools.  The noise blanker pretty much

knocked out the noise, but it also produced plenty of IMD products when the

band got busy and put a raspy sound on many of the signals, so I was having

to turn the NB off and on trying to make the signals as best as I could

with this noise.  Even engaged the attenuator a few times on 40m which

helped a little, but also weakened signals.

I have had a slight windfall recently and can afford to get a newer, better

rig if I want.  Are there any recent Yaesus that have noise blankers that

take out many different types of noise, but don't mess with the receive

signals and receiver dynamic range?  I wonder if the DSP based noise

blankers are better?  An older rig would be ok also if it would meet those


73 John AF5CC


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