[Elecraft] K3 - SO239 at ANT2 option

Ed Muns w0yk at msn.com
Mon Aug 13 09:51:43 EDT 2007


> N6KR wrote: "You can switch the KRX3 to its auxiliary input, 
> but if you don't have a KAT3, the question is what to connect 
> it to. The present KXV3 doesn't have provisions for routing 
> RX ANT only to the sub. But there are three other sources you 
> could use for the KRX3's aux input: (1) the SO239 at
> ANT2 (normally supplied only with the KAT3, but you could 
> order one and install it just for the sub);"
> 
> If I am reading this correctly, I do NOT then have to order 
> the KAT3 if I only want an extra rx antenna input to route to 
> the subreceiver.
> And I can use the KXV3 rx ant input for the main rx with the 
> ANT1 input for transmitting.  This setup is for diversity 
> reception with two rx antennas.
> 
> ANT1 - transmit antenna
> KXV3 - rx antenna to main rx
> ANT2 SO239 (no KAT3) - rx antenna to sub rx
> 
> Can someone please confirm this will be doable from the 
> outset of K3 production?

Yes, this should be doable when the KRX3 ships, although the field testers
do not yet have KRX3s to test this scenario.  You may be on your own to
figure out the details of connecting the KRX3 secondary input coax to the
ANT2 SO239.  For example, if you didn't want to cut the plug off the KRX3
coax, you could wire a mating socket to the SO239.  (Alternatively, you
could install a BNC in the vacant AUX RF hole in the rear panel and use that
for the KRX3 receive antenna instead of the SO239.)

73,
Ed - W0YK 



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