[Elecraft] K2 and KX3 with A/B switch

[Don Wilhelm]

The KX3 AGC is very similar to the K3 AGC.  Take a look at the "Noisy 
K3" article on my website for some relief.  The KX3 and K3 threshold 
and slope numbers may not match, but can be a guide for obtaining the 
settings that are best for your type of operation.

See www.w3fpr.com.

73,
Don W3FPR

On 11/1/2017 10:17 PM, Ignacy wrote:
> I am going to sell my K2 as it is gathering dust since KX3 came on board. But
> for probably the last time I put them on the A/B switch. Here is what I have
> found.
> 
> 1. K2 has good speaker. KX3 has lousy speaker. Nothing strange as K2 is
> bigger.
> 
> For comparisons I attached KX3 to an external amplified speaker.
> 
> 2. A weak CW signal in K2 is natural and easy copying. You can make it sound
> similar in KX3 by playing PBT and sometimes  engaging APF.
> 
> 3. in SSB, K2 sounds nice and mellow although the bandwidth is limited. KX3
> sounds tiring because of AGC pumping. I fiddled with HOLD, ATTACH, etc.,
> with little effect.
> 
> K2 has to go because it is too big. But it is a fine radio.
> 
> Has anybody found AGC in KX3 harsh? Any way to do something about it other
> than running RF gain?