[Elecraft] K3+KPA500+Steppir or K3+Expert KFA+ Steppir ?

[Mike K2MK]

Hi Anton,

I have a K3, KPA500 and two SteppIRs (two controllers). The SteppIRs follow
the K3 precisely. It's totally transparent. Just remember to use protection
so that you don't accidentally transmit high power when the antenna is
tuning. Damage to the SteppIR EHU can result. Use the KPA500 aux cable
keying interrupt from Elecraft and either get the tuning relay option for
the SteppIR SDA 100 controller or purchase the N8LP tuning relay. 

Before the other posts start to fly, yes you can go without protection but
the operative word here is "accidentally". Sh1t happens especially when you
add a computer into the mix. Do you want to risk damaging the expensive
SteppIR EHU or do you want to spend some money for protection.

73,
Mike K2MK


Elecraft mailing list wrote
> GM/GA/GE,
> The K3 question in connection with Steppir yagi(s).
> Will Steppir yagi follow K3 in the same manner as it follows Icom rigs,
> that is, one tunes the Icom rig and the Stepper exactly follows it or does
> one need to transmit on K3 so the Steppir knows where to tune ? Or even
> manually tune the Steppir controller ?
> I am thinking of swapping my Icom for K3, but I had bitter experience with
> a FT-2000D and Steppir and Expert amp combination when Steppir would not
> automatically follow the tuning dial on the FT2000D - but only when RF
> power was applied....
> I understand that K3 can change, depending on the bands, drive power to
> equally drive the KPA500 so the same output power will be on all bands ?
> Thanks, 
> Anton Koval
> MW0EDX & MW5R

> m0edx@





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