[Elecraft] Connections to K3 ant 1 & 2

[Joe Subich, W4TV]

 > However, the Top Ten Devices A/B switch looks interesting.
 > Unfortunately the manual only gives figures for 30MHz.

Some old correspondence with Top Ten systems indicates the
A/BSS has SWR around 1.2;1 at six meters - I don't have any
detail on the measurements and have no way to test one.

Note, unlike most other switches, the A/BSS requires a switched
ground (common source) vs. switched source (common ground).

Another source for usable relays is Surplus Sales of Nebraska
<www.surplussales.com/Relays/rfcoaxialrelays/rfcoaxindex.html>.
Although some versions are a bit expensive, a simple 12V SPDT
relay is an attractive alternative to a manual coax switch.

73,

    ... Joe, W4TV


On 5/20/2010 9:37 AM, Mike Harris wrote:
> Hi Tim,
>
> Assuming you are only using the KAT3 A/B ports and not the RX ANT IN
> jack on the KXV3A then the RX is already behind two stages of T/R
> switching.
>
> However, the Top Ten Devices A/B switch looks interesting.
> Unfortunately the manual only gives figures for 30MHz.
>
> Regards,
>
> Mike VP8NO
>