Alan,
I am going to guess - the difference may be the result on the KAT3
present in the K3 or not present.
My perusal of the K3 manual indicates that the ATU TUNE button refers to
the KAT3 - I see no exceptions for the KAT500. I really don't know what
happens if the KAT3 is not present.
So for that K3, you would use TUNE for tuning the KAT500. In order for
the KAT500 to find a match, set the K3 TUNE PWR menu to 10 watts or more
(20 watts is better).
73,
Don W3FPR
On 8/11/2016 10:27 AM, G4GNX wrote:
Probably a few dumb questions but...............
I’ve been trying to setup our club’s K3/KAT500 combination and it’s not
performing as expected. At present, it’s just the K3 and KAT500, no linear
involved.
I’ve connected the AUX data cable to the K3 and KAT500 and I have a patch cable
between K3 ANT1 and KAT500 XCVR connectors. This is the Aux cable supplied by
Elecraft.
The K3 CONFIG:KAT3 is set to KAT500Y and the KAT500 switches chosen antenna
when the K3 band is changed as expected, so I presume that data is being passed
correctly between them.
However, when the KAT500 is set to AUTO, I can only initiate a tune cycle by
holding the TUNE button on the K3. If I tap the ATU TUNE button on the K3, if
the KAT3 is shown in BYPASS then nothing happens. If the KAT3 is shown in AUTO
then the KAT3 does the tuning, not the KAT500.
Also, pressing the TUNE button on the KAT500 only seems to make the AUTO LED
blink, although I’m guessing that it’s to indicate that I need to set the K3 to
transmit (hold TUNE)?
One of our members who has dealt with a lot of Elecraft equipment says that
with the KAT500 correctly connected and CONFIG:KAT3 set to KAT500Y, tapping ATU
TUNE should put the KAT500 into a tuning cycle, not the KAT3, which he says is
a normal function.
Am I totally misunderstanding how the system is supposed to work, being misled,
or have I missed a CONFIG or setup step?
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