Topband: NR-1 noise reduction unit.

[john at kk9a.com]

It may not work for you however the NR-1 appears to be great for power line
noise. KP4AA made the following video:
 https://www.youtube.com/watch?v=i3tDPcf-ZjE 


Roger Kennedy G3YRO

Having read the Handbook for this device, it looks like it is just for
pulse-noise (like ignition, or electric fences etc) . . . but removing it
BEFORE it gets into the Receiver, unlike the usual Noise Blanker circuits
that are in the I.F.

My local noise on all the low bands is just wideband hash from various
neighbours dirty switch-mode PSUs. The Noise Blankers in my rigs don't
reduce it at all . . . so I'm presuming that neither would this unit?

As per the previous post, I wonder if anyone has used it?

Details here: 
http://www.qrp.gr/nr1/sv3ora_NR-1_Antenna_Noise_Blanker_manual_EN.pdf


Roger G3YRO