[Elecraft] Gurus

[Victor Rosenthal 4X6GP]

I live in a place where there is a ham with a legal limit rig and a big 
beam less than 1 km. away. Antennas are line of sight. His signal 
renders about 10-20 kHz of the (CW) band unusable, with lesser effects 
extending out farther. He does not have clicks; it is phase noise (or 
something like that).

I have experimented with attenuators and they have NO effect on the 
apparent width of his signal. Therefore I conclude that the problem is 
not in my receiver (K3, not S, upgraded synthesizers).

I don't know what kind of transceiver he is using, but I think more 
attention needs to be paid to transmitter cleanliness, rather than to 
continue the race for dynamic range.

73,
Victor, 4X6GP
Rehovot, Israel
CWops #5
Formerly K2VCO
https://www.qsl.net/k2vco/

On 09/06/2021 4:57, Al Lorona wrote:

<snip>

> Here's my opinion on ranking receivers by 2 kHz 3rd order dynamic
> range: almost any modern receiver has enough dynamic range to make
> this ranking more and more meaningless as time goes on. Sherwood
> himself has said that 90 dB or above is plenty enough. To understand
> why, see this post from 2016 by one of the old guys on this
> reflector:
> http://elecraft.365791.n2.nabble.com/K3-The-Way-We-Rank-Receivers-long-td7623639.html
>
>  Lastly, if you've been enjoying your rig for years and then hear
> someone else complain about a flaw you weren't even aware of, don't
> panic. There are a million reasons why his concerns might not involve
> you in the least.
> 
> Above all, have fun.
> 
> Al W6LX/4