[Elecraft] K3 Sub-receiver use
Guy Olinger K2AV
olinger at bellsouth.net
Mon May 31 12:33:38 EDT 2010
I don't doubt for an instant what you say.
I'm thinking the common ground path issues and cable routing issues
would get it, not that you couldn't do it with the relays
"standalone". And then the complaints would start about hearing
signals move in one RX while tuning on the other, starting with 6m and
moving down.
And parts are not the only cost. After all you can't weigh software,
worry or frustration.
73, Guy.
On Mon, May 31, 2010 at 11:06 AM, Tom W8JI <w8ji at w8ji.com> wrote:
> Others are asking for that to be switchable back and forth between the
> two *dynamically*. This involves both IF's and allows for signals in
> the IF of one RX to be heard in the other. This would a switch with
> 100 dB isolation. It would be an expensive option, plus some
> significant new code. Don't think this complexity is commercially
> feasibility.>>
>
> I can get in that range in a 50 ohm system with a single relay at HF in a
> proper layout using the right style of relay.
>
> I have not tried it with miniature relays, but I see no reason why it could
> not be done. It would probably take three $2 SPDT relays the size of a
> sixteen pin DIP package.
>
> 73 Tom
>
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