[Elecraft] KPA500 High Reflected Power Fault

[nr4c]

Hi,

I don't have any experience with the LDG 1KW tuner, I assume this is 
the 1000Pro.  But, I have used several smaller LDG tuners and the newer 
ones like the 200 PRO have a means of adjusting the SWR threshold so 
that you can have the tuner stop trying when it gets "low enough".  I 
looked at the LDG site this morning and didn't see this in the product 
description, but did notice that there is a FREE upgrade to this tuner 
to add additional features including new algorithms for the tuning 
process.  Also peak and average meter modes.  Offer is good till May 31 
so get on it fast.  They'll send you a new chip to insert in the tuner.

I hope this helps.

...bill  nr4c

BTW: if this doesn't help, loan me the KPA500 for a while, you know, 
maybe until thge Elecraft tuner makes it's appearance.


On Sun, 15 May 2011 11:00:57 -0400, Nels Anderson wrote:
> Been enjoying KPA500 #32 for a couple of days now. Haven't yet made a
> lot of QSOs with it, but the extra power on RTTY and to bust a couple
> SSB pile-ups has been welcome.
>
> However, the amp does not like my 40m setup. As soon as I transmit it
> instantly goes into high reflected power fault and shuts down. My
> antenna is a 120 foot center fed wire using 1 inch ladder line and an
> LDG 1 kw auto tuner. SWR on 40m is under 2:1 and the K3 and other 
> rigs
> I've used it with have always been happy with the antenna 
> arrangement.
>
>