I have had a NRD-525 for 10 years now and love the receiver (I agree with Tom's opinion). They can be found at very reasonable prices now. I have never found the noise blanker to be very effective but haven't really tried to use it with noise of the Woodpecker type. It does very little if anything on local electrical noise. Still, I also have an R8 and a collection of tube type receivers and won't part with my stock 525! A great receiver. If you can get a 525 at a good price, I'd recommend it- I hear the ESKAB mods improve this fine receiver even more.
This is my humble opinion only.
Kris Field, (Horsham, PA USA)
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From: M Clinton
Sent: Wednesday, September 17, 1997 3:23 PM
To: hard-core-dx@xxxxxxxxxx
Subject: QUESTION/EQUIPMENT: Re: NRD-525
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As per the RDI Whitepaper Review on the NRD 525 NoiseBlanker:The
5254 includes a first rate dual width noise blanker with continuously
variable level control.In the WIDE position,the 525 version of this
circuit is unusually effective in alleviating disruption of reception by
thr RAT A TAT TAT Of Soviet Woodpecker over the horizon radar
transmissions.
As is the case with virtually all shared-frequency blankers,the
noise blanker of the 525 acts on unwanted pulse interference only after
the signal stength of the interference more or less exceeds that of the
desired received signal. Pulse interference at or below the level of the
signal you're trying to hear will hammer away unfathomed by your
receivers blanker.
Thats the RDI/Magne review.....I hope this helps Hans or anyone
else interested.I think they still sell these reviews....I believe
either Grove or Universal Electronics sold these at one time,and still
do. tom messer,river falls,wisconsin.
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