[Elecraft] My new amp hook-up?

[Jack Brindle]

W B Reese wrote:

> My problem is, to switch antennas on the amplifier, I must:
> 1. Unscrew the dipole from Ant1 on the KAT100,
> 2. Unscrew the vertical from the amplifier output,
> 3. Unscrew the amplifier input from Ant2 on the KAT100,
> 4. Screw the amplifier input onto Ant1 on the KAT100,
> 5. Screw the vertical onto the amplifier output,
> 6. Screw the dipole onto Ant2 on the KAT100
>
> Did I write that all correctly?  It's confusing!  And, it's a pain!

I  don't think so. You would end up with the vertical still connected  
to the amplifier, but now the amplifier and dipole have switched  
positions on the KAT100.

The most inexpensive way to do the switching is to add a manual antenna  
switch on the output of the amplifier, and place the amp in standby  
mode when you want to run lower power.

As Vic has suggested, you could certainly set up a KRC2 to let you push  
a button and switch between the two antennas. In this case I would  
suggest using an ACC function to control an external relay. You could  
then either control the antenna selection from the KRC2 buttons, the  
manu selection, or get fancy and configure the KRC2 to read the antenna  
selection and set the ACC from that information (note: this operation  
requires the use of the configuration which is still in development).  
Seems like you will be laying out a lot of money to something that  
could be done much cheaper by the first method...

Of course, if the Titan had external band inputs (some amps do), you  
could also use the KRC2 to tell the amp what band to operate on.

- Jack Brindle, WA4FIB
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