[Elecraft] Has anyone Interfaced a K3S and OM2500A

[Josh Fiden]

> 1. Does anyone out there have a K3S successfully interfaced to a 
> OM2500A amp using the RS232 post on the K3S?
I'm using OM-Power amp with K3 (not "S").
>
> 2.  Since the K3S has up/down buttons for band changes, does the 
> OM2500A reposition the load and tune stepper motors for each band on 
> the way to the intended band.  In other words, on a rapid band change 
> from 80m to 10m, would the OM2500A reposition the tune and load 
> stepper motors for 40M then 30M, then 20M, then 17M, then 15M, then 
> 12M, before repositioning the stepper motors for 10 meters?
The amplifier does NOT re-tune for band changes until you tap the key or 
PTT.

You must connect the TX inhibit line between K3 and amplifier. When you 
change bands on K3, OM Power asserts the TX inhibit line to prevent K3 
from transmitting. Once you tap PTT/VOX/key, the amp tunes and releases 
TX inhibit.

73,
Josh W6XU