[Elecraft] D64K

[Joe Subich, W4TV]

Josep,

> My K3 received some damage when i tried to listen on 10m and one
 > station was already in the band:

Looking at the KAT3 schematic shows there is nothing in the ATU that
should be damaged by 10 Meter RF - particularly if the receiver did
not suffer any damage.  If anything, one of the IF traps on the main
board might be damaged but that is relatively unlikely with 10 Meter
RF.

> In all bands if ATU is bypassed it gives me high SWR. When i use ATU
> i  don't have swr.

Since the problem shows only with the ATU bypassed and it happens on
all bands, start by tuning the ATU into a known good 50 Ohm load for
*each band* (and repeat the process on each antenna port if you use
both).  It's possible the "bypass" settings have been lost or scrambled
and this will reset them.

 > We have finished the expedition and I'm back home.

Good job!  I only wish you would have beamed to the USA more <G>.

73,

    ... Joe, W4TV


On 8/22/2012 2:30 PM, ea3aky wrote:
> We have finished the expedition and I'm back home.
>
> We had 4 stations running, with 2 K2 and 2 K3 and 1 KPA500 (other PAs were
> 500 w home build and one ACOM 1000)
>
> My K3 received some damage when i tried to listen on 10m and one station was
> already in the band:
>
> In all bands if ATU is bypassed it gives me high SWR. When i use ATU i don't
> have swr. I think may be some bleeding resistors damaged at bypass line of
> ATU. Do you have any experience in this problem? May I try to solve it or
> it's better to send the ATU to be repaired? Anyplace in Europe or it's
> better to send it to USA?
>
> Thanks for your help
>
> 73 Josep
>
> EA3AKY
> http://ea3aky.blogspot.com/
>
>
>
> -----Mensaje original-----
> De: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] En nombre de Tony Estep
> Enviado el: miércoles, 08 de agosto de 2012 23:16
> Para: Elecraft
> Asunto: [Elecraft] D64K
>
> They're up and running. Plan is to be there through the 20th. Using 3 K3s
> and 1 K2.  http://www.d64k.net/plans/
>
> Tony KT0NY
>
>
> --
> http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352
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