[Elecraft] Starting values for AGC with MCU 4.51 ???

[Ed Muns]

At THR=20, the SLP is irrelevant.  All SLP values result in the same effect,
approximately SLP=15.  At higher THR settings, the SLP is flattened to
protect your ears, and at the maximum THR=20 the SLP is horizontal, i.e.,
SLP=15, regardless of what value used for SLP.

Only by turning off AGC will the K3 AGC function go as high as the hardware
AGC.

Ed W0YK

 

Dave, K6LL, wrote:
> I'll be in the WPX CW this weekend, using the rare prefix 
> call sign KZ7X.  I'm hoping for some good pileups to test things out!
> 
> I'll be using these settings:
> agc dcy soft
> hld 0.2
> pls nor
> slp 0
> thr 20
> f 200
> s 020
> af lim nor 030
> front panel  agc fast
> Use min preamp, max attenuator, and min rf gain to keep weak 
> signals just clearly readable.
> 
> My idea behind those settings is to keep dynamic range as 
> high as possible before agc even begins to actuate.
> 
> If agc compression becomes a big issue, I will try turning 
> agc off, and setting rf and af gain to keep signals in the 
> range where they need to be (weak signals readable, and loud 
> signals below the AF Limiter).  I have a new sensitive 
> headphone setup, and new sound deadening in the amplifier 
> that may help in this regard.  Thanks to K3NA for this idea:
> http://wiki.contesting.com/index.php/Setting_receiver_gain_controls