Thanks to all who responded to my questions regarding tuning the KAT500 when
the KPA500 is in OPERATE mode. Changing CONFIG: TUN PWR back to NOR and
reducing K3 PWR has helped to keep the amp from tripping to STANDBY from
OPERATE when changing frequency within the same band. Occasionally the
Roy,
Why are you using the figure on page 6? That is only needed if you have
an external device that controls the key line (the box at the top right
corner in the figure on p.6). If you don't have such a device, the
applicable configuration is the figure on p. 4. With only the K3, KPA500
and
The auxbus cable from the K3 to kat500 then kpa500 works fine with no user
adjustment required here. In early FT days we saw this on odd occasions but
the FW version 01.15 for the kpa500 resolved this by slowing down hi vswr
detection by the amplifier which caused the kpa500 to fault on occasion bu
I think what happens is that the K3 puts out rf faster than the KAT500 can
interrupt the key line when it goes into the tune mode. Using the key line
interrupter on the cable is really only for bringing the key line out of the
cable to include other non-Elecraft key lines in series.
So...the onl
I have connected the cables as shown on page 6 of the KAT500 Automatic
Antenna Tuner Owner's Manual, revision B3, November 20, 2012. I am
connecting the K3, KPA500 and KAT500 using the DB15 interface cables and the
two RCA (yellow end) cables for the separate key line. This diagram shows
the
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