[Elecraft] Selecting Antennas via Band Decoder

[Dick Dievendorff]

I would check with W4TV. I suspect microHAM's Station Master might be able do this. 

The band outputs from the K3 ACC connector are just enough to select the band. To split the band on your chosen frequency you will need something that reads the serial port output of the K3, and put the radio into AUTOINF which causes the K3 to send its frequency when you move the VFO. The SteppIR controller reads this.  

Good luck!

73 de Dick, K6KR

Sent from my iPhone

> On Aug 1, 2015, at 11:12, Brian F. Wruble <bwruble at gmail.com> wrote:
> 
> My K3 is connected to a TopTen "Band Aide" band decoder.  It works great
> for selecting antennas based on the band.
> 
> I would like to be able to select a different antenna depending on *where*
> in the band I am operating.
> 
>     To be specific,
> 
> If I am operating at 3500-3600, I want to select a dipole tuned to the
> bottom of the 80 meter band.  It needs to tell the TopTen to select 80
> meters, which is what it does now.
> 
> If I am operating in the range 3601-4000, I want the TopTen to be told to
> select a different dipole, one tuned to 3800.  The K3 needs to tell the
> TopTen to select some unused band which I can then rig to select the relay
> for the dipole tuned to 3800.
> 
> Is there a way to set up the K3 to do this?
> 
> I have been able to accomplish this by selecting different antenna outputs
> at the KAT500, but what I really need is a way to tell the TopTen to select
> different relays at the base of my tower.  Changing antenna outputs at the
> KAT500  requires a separate cable run to the tower.
> 
> 
> I am sure this must have been covered at one time, but I can't find the
> right thread.
> 
> TNX and
> 
> 73 de Brian W3BW
> 
> 
> *Brian F. Wruble, C.F.A.
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