[Elecraft] K3s noise figure spec

[ab2tc]

Hi,

Here is a quote of my response to the exact same question in 2017:

"Hi,

According to the ARRL review in November, 2dB! Deaf no more.

AB2TC - Knut"

That was from this thread:

https://marc.info/?l=elecraft&m=149365913804929&w=2

There was a fairly long follow up discussion that was quite informative
(e.g. the chip used is capable of much better performance in a
manufacturer's test circuit, but in a practical amplifier will do slightly
worse).

AB2TC - Knut




stengrevics wrote
> Does anyone know what the preamp 2 noise figure is on 6 meters?  I have
> not been able to find it in the owner's manual or in Fred's book.
> 
> Thanks,
> 
> John
> WA1EAZ



Dave Sublette-2 wrote
> Does anybody KNOW what the noise figure is for the 50MHz preamp on the
> K3s?  It isn't listed in the specifications.
> 
> I need to know in order to make system noise figure calculations.  My
> feedline is going to be long (low loss, but long) and I'm trying to
> determine if I will need a preamp mounted at the antenna.
> 
> Thanks,
> 
> Dave, K4TO
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:

> Elecraft at .qth

> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to 

> lists+1215531472858-365791 at .nabble





--
Sent from: http://elecraft.365791.n2.nabble.com/