Great recording. Just had to follow your email and listen to the sound at the 
same time. I have had my K3 for over five years now (Serial No. 4416), a kit 
that I put together myself, without ever having any problems whatsoever. For 
questions, a simple call to Elecraft Customer Support has sufficed, a reply 
with instructions and solutions, if any, have arrived within minutes. I have 
had Kenwoods, Icoms, Yaesus, Galaxy, Collins, you name it, and never ever have 
I dealt with such a dedicated company whose products are worth every penny I 
have paid for. They have to be commended for the high standards of quality and 
outstanding customer support. I have been a ham since the early sixties. My 
comment is based on my own experience. In all those years I have never dealt 
with a company and products that even compare to Elecraft. I only hope they are 
here to stay. 

73,
Ramón E. Tristani Sr.
NQ9V (ex-KP4GE)



> On May 17, 2016, at 10:25 AM, Graham Kimbell <[email protected]> wrote:
> 
> I'm really surprised by all these negative comments about K3 NB.  Mine has 
> been very effective on electric fences (I have one!) and power line noise.
> 
> Try this from 5 years ago:-
> http://www.g3tct.co.uk/GB3ANG_processing.mp3
> 
> [you'll hear first the GB3ANG beacon on 70MHz (tropo, 607km) in ssb bandwidth 
> (2.3kHz) with no noise blanking. There's bad power line noise.  At 6.7seconds 
> in, the noise blanker is switched on (set at dsp t2-6, IF narrow 3). At 
> 21.4secs in, the mode is switched to cw - the audio tone remains the same, 
> and the bandwidth changes to 900Hz.  At 30.5secs in, the APF is switched on 
> until 56.4secs.  At 61.5secs we revert to usb mode and at 68.3secs, the noise 
> blanker is turned off.]
> 
> 73
> Graham
> 
> On 19:59, [email protected] wrote:
>> ...
>> the NB on the K3 doesnt work well on power line noise,,, this is my
>> experience as well
>> 
>>   
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