Re: [Elecraft] Why K3 appears noisy?

-Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ignacy Sent: Thursday, December 17, 2009 10:23 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Why K3 appears noisy? Rather than debate whether K3 is noisy I suggest to debate

[Elecraft] Why K3 appears noisy?

Rather than debate whether K3 is noisy I suggest to debate why it appears so to many. Then it can lead to fixes. Below are a few hypotheses. 1. Highest AGC threshold is too low. 2. Gain distribution under RF gain. RF gain under AGC does not reduce noise as much as with AGC off. The reduction

Re: [Elecraft] Why K3 appears noisy?

I believe I've written about this before, at least to a few, but perhaps it bears repeating. I have done a side-by-side comparison of my K3 with another K3 when RF (actually IF) gain was reduced with the AGC on. With my radio, tuned to a S9+50 dB BC station, even a slight decrease in gain was

Re: [Elecraft] Why K3 appears noisy?

Hi Wes: I took a look at the RF Gain Calibration on the K3 Utility and they offer two ways of doing it. One requires a signal generator and one uses factory default values. Is the factory default method satisfactory or is it necessary for us to purchase the XG2 to do the calibration properly.