[Elecraft] Using Dual Switched Radios with KAT500 Tuner

[Phil Hystad]

> < quoted from Jim Cox K4JAF>
> Main question I have:  Why would you want to use the 706 on HF when you have the K3?

I suppose the most direct and honest answer is “because I want to”.  Actually, the 706 is sort of my backup radio if I ever need a backup radio.  And, I have a tendency to use my backup radio a couple of times per month just as a means of exercising it.  Right now, the antenna tuner I use with the 706 is a manual Palstar AT1KM which is bulky and takes up room on the desk.  I want to get rid of it.  Making dual use of the KAT500 would be a nice solution to getting rid of the AT1KM.

I also own a KX3 but I use it for portable QRP ops only — it does not have an external amplifier.

>  I think the 706 covered 2 meters?  Hook the 2 meter antenna to it and use it there..

Of all the 2-meter solutions I have already, the 706 would be my last to use.  2-meters on the 706 is a hassle.
However, I do next to zero 2-meter work so a moot point.  I have a 2-meter Yaesu FM transceiver as well as the 2-meter option on the KX3,   and two Yaesu 2-meter capable HTs.


73, phil, K7PEH

> 



> -----Original Message----- From: Phil Hystad
> Sent: Monday, November 28, 2016 7:13 PM
> To: Elecraft Reflector Reflector
> Subject: [Elecraft] Using Dual Switched Radios with KAT500 Tuner
> 
> I would like to consider using my KAT500 tuner in a configuration switched between two radios.  One of them is my K3 and the other is my Icom 706.
> 
> My normal configuration is a full K-Line:
> 
>        K3/P3 —> KPA500 —> KAT500 —> Antennas
> 
> This K-Line configuration is by the book full Elecraft cabling setup.
> 
> My alternate configuration is the Icom IC-706:
> 
>         IC-706  —> KAT500 —> Antennas
> 
> No amplifier in this configuration.
> 
> My first thought is that my 706 will be RF connected to the KAT500 only — no other cabling as I am using with the K-Line.  While using the 706 the K3/P3-KPA500 will be switched off (front panel switch for KPA500).
> 
> I am thinking of using RF sensing for the frequency, band detection and thus switching to the right antenna by the KAT500 but I am not sure if this will work.  Manually switching is OK but would rather make use of auto-switched by KAT500.
> 
> Advice??  Is there anything wrong with this idea and my operating plan with the 706?  All cabling RF/Digital between K-Line and KAT500 will be left connected with the exception that RF input is actually physically switched between the K-Line and the 706 (only one connected to KAT500 at a time).
> 
> 73, phil, K7PEH
> 
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