[Elecraft] K3 with Expert 1K-FA, RS232 connections question?

[Joe Subich, W4TV]

Andy,

If you are using computer control of the K3, you will probably
have better results if you use the DB15HD connection (BCD Band
Data) to control the Expert 1K-FA than trying to parallel the
RS-232 (CAT) connections.  With the "Band Data" connection the
1K-FA operates as if it were connected to a Yaesu transceiver.

I will send you separately an old drawing by the former Expert
distributor showing both (Band Data and CAT) connections.

73,

    ... Joe, W4TV

On 6/27/2010 8:22 AM, GD0TEP wrote:
> Hello to the group again,
>
> I want to connect my K3 to my 1K-FA amplifier, the amplifier manual
> isn't to clear (to me anyway) on the connections that need to be
> used.
>
> On the amplifier 15pin plug, I use pins 1, 9&  14, yes it's that
> simple.
>
> On the K3 RS232 I connect the amplifier pin 1 to K3 pin 3 (I think, I
> may have these two crossed) On the K3 RS232 I connect the amplifier
> pin 9 to K3 pin 2 (I think, I may have these two crossed)
>
> And
>
> On the K3 RS232 I connect the amplifier pin 9 to K3 pin 5 as ground
>
> Within the K3 RS232 I need to link the RST and CTS together, well RTS
> is pin 7 on the K3, but what pin is the CTS????
>
> Advice would be greatly appreciated.
>
> 73, Andy http://gd0tep.com
>
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