[Elecraft] K3 feature request

[Jerry Flanders]

A properly connected and adjusted ALC system that responds to 
amp/antenna anomalies by signalling the rig to cut back on drive 
might be useful. Don't know how it would respond to keying weirdness.

Jerry W4UK

At 05:57 1/9/2009, Mike Cox wrote:
>Ouch.. that could blow the pin diodes or protection circuits in my
>internal Ameritron PIN5 QSK switch if the amp were in the "Operate" mode
>and RF were applied from the rig without the KEY line activated. It is
>imperative that the KEY line be actuated before RF hits the amplifier
>input to avoid damage to the pin diode switch. With Ameritron amps with
>an internal pin diode switch, the wiring is such that the only time the
>amplifier is actually bypassed is when the OPERATE switch is in STANDBY.
>Otherwise the path is to the amplifier input AND the pin diode switch.
>In this mode, the KEY line only goes to the pin diode switch, not the
>main OPERATE relay which would otherwise bypass the amp. I normally
>don't put the amp in the "Operate" mode until after the antenna is tuned
>using the normal K3 "TUNE" mode while the amp is bypassed. If I forget
>to tune the antenna first and operate the amp I get a huge reflected
>power (seen on the tuner bridge) but nothing catastrophic for a short
>operation of my AL-1200. If the KEY OUT is to be optionally disabled
>during K3 TUNE, it MUST be a menu selected option or it will result in
>damaged equipment.
>
>
>Bill Johnson wrote:
> > I would like the key out not to switch on the amp when tuning the antenna
> > with a remote tuner without turning on the amp.  That way when I 
> operate the
> > amp is loading into a tuned circuit via the K3 tuning 
> mechanism.  I have the
> > ALS 600S
> >
> >
> > 73,
> >
> > Bill
> > K9YEQ