[SFDXA] K9YC article on Transmitter Signals

Bill bmarx at bellsouth.net
Thu Dec 3 15:41:23 EST 2015


Interesting information on Transmitters Dirty Signals...a topic 
discussed on another reflector.

Comments:
It's far from true that "a transmitter is a transmitter". There is a 
"huge" difference in transmitted noise among radios.

There is been tremendous focus on improved receiver performance over the 
past years and now, in my opinion, we have gotten to the point where the 
marginal benefit is minimal unless and until we clean up the all the 
dirty transmitters out there.

It doesn't matter how good our receiver there's a dirty signal in our 
passband!

We need to focus on our transmitted signals as well, and encourage 
manufactures to build better transmitters, so we can all benefit.

The K3 is one of the cleanest, and the Yaesu rigs are among the worst. 
The Kenwood's are not far behind the K3 and the Icom's tend to fall 
somewhere between Kenwood and Yaesu, but much cleaner than Yaesu.

K9YC's article is very interesting reading is highly recommend reading:
http://audiosystemsgroup.com/TXNoise.pdf


More information about the SFDXA mailing list