Ken,

Do you have the cable wired first to the KAT500 and then on to the KPA500?
The KAT500 must interrupt the keying of the KPA500 when it needs to tune.

73,
Don W3FPR

On 12/29/2018 10:13 PM, Ken B wrote:
Thank you Don.
The pin 3 (send) did the trick perfectly. Now it works at 300 to 400 watts out with 20 in. The problem i have now is when i switch bands the kat will not tune unless i remove all AC power from the amp.


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    On Thu, Dec 27, 2018 at 11:36 PM, Don Wilhelm
    <donw...@embarqmail.com> wrote:
    Ken,

    Look at your Icom 7600 documentation.  I believe the 'keyword' may be
    "Send" or Keyout or something of that nature (PTT should be an
    input to
    the transceiver, not an output, but some manufacturers mix them up
    causing confusion - check the documentation).
    Connect that output from your transceiver first to the KAT500 AMP KEY
    connector and from the other KAT500 AMP KEY connector to the KPA500.
    That allows the KAT500 to disable the amplifier keying if the KAT500
    needs to tune.

    You should then be "good to go" with the basic cabling. When you get
    the proper cable, it will integrate better with your Icom, but the
    basic
    cabling will get you on the air with your new toys.

    73,
    Don W3FPR

    On 12/27/2018 11:14 PM, Ken B via Elecraft wrote:
    > Just received my the kap500 and found out it was missing the
    accessory cable which goes from the icom 7600 to the kat500.
    Elecraft is sending one but it might take a week. In the mean time
    does anyone have the accessory pin outs to rca plug so i can make
    one and use my new toy.
    > Thank youKenKc1icn


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