[Elecraft] high input SWR KPA500

[Jack Brindle]

The DC should not have done anything - the KPA blocks it at its input. But the excess power apparently did quite a bit of damage. Call the tech support guys on Monday.

Good luck in PACC. Most of us contest types in this area (Northern California) are operating WPX-RTTY this weekend.

73!
Jack, W6FB


> On Feb 8, 2019, at 11:50 PM, Steef PA2A <pa2a at xs4all.nl> wrote:
> 
> John,
> 
> it is the same with all transceivers. In standby everything is OK and input power is shown on the KPA screen. But in operating mode the signal blocks somewhere. The RF of the TS590S doesn 't even switch the band filters of the KPA while it does switch them in standby mode. I suspect the input relay or circuit. There may have been DC in the coax line caused by a remote beverage switch.
> 
> The amp shows 0.5 Ampere current when PTT is applied. Not very much so there may be more trouble.
> 
> CU all in the PACC, starting within a few hours!
> 
> 73s Steve PA2A
> 
> John Simmons schreef op 2019-02-09 04:38:
>> Are you  using a K3(s)? Are you sure the rig isn't switched to ANT2 by
>> mistake?
>> -John NI0K
>>> Steef PA2A
>>> Friday, February 08, 2019 1:47 PM
>>> Hi,
>>> since this afternoon my KPA500 has a very high input SWR on all
>>> bands and there is no output. What might be the problem? I can 't
>>> find the schematics.
>>> 73s Steve PA2A
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