Alan, Yes, set the KXPA100 tuner to bypass - switch on the front.
You will be using cabling as shown in Figure 4 page 11 of the KAT500 Owner's manual. The "output on transceiver that provides closure to ground on transmit" is the RCA jack on the rectangular box in the cable between the KX3 and the KXPA100.
Note that the RCA cables which provide keying for the amplifier MUST be routed first through the KAT500 and then to the amplifier - that allows the KAT500 to disable keying the KPA500 when it is tuning.
73, Don W3FPR On 3/5/2018 12:44 PM, Alan Lambert wrote:
A little help / guidance please. I have a Kx3 w/ Kxpa100 and soon I will be adding a Kpa500 / Kat500 to this mix. When you add a Kxpa100 to a Kx3 you set the power on the Kx3 from 0-110w. If you click tune on the Kx3 it tunes the tuner in the kpa100. Full integration How does all this work once you add the 500? Once you add the 500 to the mix does the Kx3 now show 0-500? Does the Kx3 "control" the 500? What is the wiring path for this? Some of its obvious; the tuners in the KX3 and the KXpa100 will need to be disabled, RF out of kpa100 to RF in on the 500.
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