[Elecraft] K3 to IC-7800 Comparison?

[Jim Brown]

On Sat,9/12/2015 2:12 PM, Skip Cameron wrote:
> If anyone has done a K3 to IC-7800 comparison, please reply direct to me
> with your assessment.

I've never seen a 7800, so no experience. However, ARRL and Rob Sherwood 
have. Rob's data is on his webpage. It concentrates on receiver 
performance. I've gathered ARRL Lab test data for a selected bunch of 
modern rigs and published it in a form making it easier to compare the 
rigs as TRANSMITTERS.  My report is at http://k9yc.com/TXNoise.pdf

The original K3 is MUCH cleaner on CW than the 7800. Also, the original 
K3 has about 15 dB less phase noise than the 7800, which matters a lot 
on Field Day and at a multi-TX contest station. The new synth board 
reduces both TX and RX phase noise quite a bit (I've heard numbers in 
the range of 10 dB).

I haven't seen ARRL Lab tests of the new K3S or a K3 with the new synth 
board, but I suspect both will turn out to be at the head of the pack 
for TX cleanliness. Yes, I know about Pure Signal -- NR0V is my neighbor.

73, Jim K9YC