Below is a copy of e-mail that I received from Elecraft
today regarding cable for KAT500.
73 Peter VE3SO
-------- Original Message --------
Subject: KAT500 cable
Date: Mon, 08 Oct 2012 11:29:49 -0700
From: Madelyn Gomez <[hidden email]>
To: [hidden email]
Thank you for your recent KPAK3AUX cable set order. If you ordered this
cable to be used with your KAT500 you do not need the entire cable set.
This morning we released the optional Kat500 to KPA500 cable, E850463
for $24.95. This is the same cable included in the Aux cable set,
without the two additional items you will not need for your KAT500.
If you would like to change your order to the new cable only, E850463,
please reply and let me know.
125 Westridge Drive
Watsonville, Ca. 95076
KAT500 to KPA500 cable. Provides band data to KAT500 for band change prior
to TX,, and feeds through KPAK3AUX cable data from the K3 to the KPA500.
Typically used in addition to the KPAK3AUX cable from the K3 to route band
data, keying and AUXBUS data through the KAT500 to the KPA500. (The KAT500
has AUX Cable IN and OUT connections.)
This is the same 15 pin cable as is contained in the KPAP3AUX cable set
(see above, under the KPA500). That set also includes a Y cable expansion
adapter and a TX line keying interrupt adapter for the K3 to KPA500 link.
Seems like a reasonable price or roll your own as they say....
You're looking for the E850468 "Optional KAT500 to KPA500 Cable". It will
also work as a K3 to KAT500 cable. It's like the KPAK3AUX but doesn't
include the Y or Tx line keying adapter that are included in the KPAK3AUX