[Elecraft] K3 NB

[Fred Jensen]

Noise blankers have never worked well, or at all, on most power line 
noise which is usually caused by very small arcing in the distribution 
line [usually around 12 KV in the US] hardware on the poles.  It's 
multiple arcs, and the noise pulses from each one overlap each other 
producing the rough buzz.

The K3 IF NB worked far better than great for me when I was surrounded 
by electric fences and it's puzzling that anyone is having problems 
getting it to work.  Ignition noise tends to be a thing of the past, but 
in the few times I've encountered it. the NB was extremely effective as 
well, and easy to adjust.

I don't remember who first came up with it ... I thin Art Collins had 
some role ... but it was light years ahead of the old Lamb Noise 
Limiters such as in the SX-28.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org

On 5/16/2016 8:57 AM, riese-k3djc at juno.com wrote:
>
> lots of opinions,,, what I take away is regardless of the update ( I am
> woefully behind )
> the NB on the K3 doesnt work well on power line noise,,, this is my
> experience as well
> but I am behind on the software upgrades
>
> Bob K3DJC