K3: Antenna Ports

[Ron Spencer]

During the recent Stew Perry 160 contest I found that at some points the
transmit vertical was better then the beverages for receiving the west
coast. It seems that when I assign the second receiver to "main" it uses
whatever antenna I have selected for the main receiver and not the main
transmit antenna. What I wanted to do was listen on the sub to the transmit
vertical and the beverages on the main. This way I could, if I wanted to,
quickly shut off the sub to get the beverages in both ears. I don't have the
tuner in the K3.

I know I can put the beverages in the sub receiver aux input but if I do
this I can't have them in both ears (or is there a way to do that?).

To summarize what I want is: main receiver to listen on beverages which are
connected to the receive antenna bnc. Listen with the 2nd receiver on the
main transmit antenna.

Thanks

Ron
N4XD

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[Bill W4ZV]

Ron Spencer wrote

To summarize what I want is: main receiver to listen on beverages which are
connected to the receive antenna bnc. Listen with the 2nd receiver on the
main transmit antenna.

I don't have a KAT3 installed in my K3 with the KRX3 but that may be the only way to do what you want.  Your choice would be ANT2 instead of AUX RF for the KRX3 and then use ANT2 for the Main TX.  Then you would have RX ANT for Main RX and ANT2 for KRX3, but you have then given up using AUX RF for the KRX3 (without changing cables inside the K3).  As I said I don't have a KAT3 so maybe someone who does can verify this.

What difference does it make which RX is on which antenna since the RXs are identical?  See link below for using a splitter for Bev to both RX ANT / AUX RF which allows quickly switching  between the 3 combinations:

Main / Sub

1.  TX ANT on Main ANT1 / Bev on Sub AUX RF.  [normal diversity setup]
2.  Both RXs on TX ant.  ANT1/ANT1  [*tap* RX ANT to toggle with #1 above]
3.  Both RXs on Bev.  Bev (RX ANT) / Bev (AUX RF) [*hold* RX ANT to toggle with #1 above]

Here's a previous post describing this:

http://mailman.qth.net/pipermail/elecraft/2008-November/099738.html

73,  Bill

[Don Wilhelm-4]

In a related "wish list" item, I would like to have the ability to
switch between 2 antennas, just like the KAT3 does now, but without the
tuner part of the KAT3.  I have all resonant antennas and do not need
the tuner on the K3.

I know I could just add the KAT3 and put it in bypass, but that is quite
pricey for an antenna switch.
So how about a "KAS3" option (K3 Antenna Switch)?

73,
Don W3FPR

Ron Spencer wrote:

> During the recent Stew Perry 160 contest I found that at some points the
> transmit vertical was better then the beverages for receiving the west
> coast. It seems that when I assign the second receiver to "main" it uses
> whatever antenna I have selected for the main receiver and not the main
> transmit antenna. What I wanted to do was listen on the sub to the transmit
> vertical and the beverages on the main. This way I could, if I wanted to,
> quickly shut off the sub to get the beverages in both ears. I don't have the
> tuner in the K3.
>
> I know I can put the beverages in the sub receiver aux input but if I do
> this I can't have them in both ears (or is there a way to do that?).
>
> To summarize what I want is: main receiver to listen on beverages which are
> connected to the receive antenna bnc. Listen with the 2nd receiver on the
> main transmit antenna.
>
> Thanks
>
> Ron
> N4XD
>
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[alsopb]

Ron,

I may be mislead by the K3 displays, but this seems to be able to be
done in beta V2.76.
Initial condition.  Main rx on main ant   Subrx on.   Diversity not
selected.

1) A->B twice to copy all to sub
2) Now select RX ant for main (assuming that's where the rx antennas are).

If you want to transmit on B's freq, select split too.

One can go to BSET to change what you don't like with the A->B copy all
step.

Regarding the audio mixing,  I've done it externally to put both rx's in
both ears.

73 de Brian/K3KO

Ron Spencer wrote:

>During the recent Stew Perry 160 contest I found that at some points the
>transmit vertical was better then the beverages for receiving the west
>coast. It seems that when I assign the second receiver to "main" it uses
>whatever antenna I have selected for the main receiver and not the main
>transmit antenna. What I wanted to do was listen on the sub to the transmit
>vertical and the beverages on the main. This way I could, if I wanted to,
>quickly shut off the sub to get the beverages in both ears. I don't have the
>tuner in the K3.
>
>I know I can put the beverages in the sub receiver aux input but if I do
>this I can't have them in both ears (or is there a way to do that?).
>
>To summarize what I want is: main receiver to listen on beverages which are
>connected to the receive antenna bnc. Listen with the 2nd receiver on the
>main transmit antenna.
>
>Thanks
>
>Ron
>N4XD
>
>_______________________________________________
>Elecraft mailing list
>Post to: [hidden email]
>You must be a subscriber to post to the list.
>Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft   
>
>Help: http://mailman.qth.net/subscribers.htm
>Elecraft web page: http://www.elecraft.com
>
>  
>

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