[Elecraft] KX3 and KAT500

[ab2tc]

Hi Phil,

I routinely use my KAT500 at the end of a 100' LMR400 cable run with my
IC7200 (my backyard and to go rig) using the TUNE button which has power
fixed at 10W. Actually the measured tune power is more like 8 or 9W. So it's
puzzling that your 10W from KX3 will not activate the tuner. Are you sure
the KX3 is producing anything close to 10W? If I am not mistaken, with
recent firmware changes, the KAT500 should tune all the way down to 5W. 

AB2TC - Knut


Phil Hystad-3 wrote
> I have been experimenting with my KAT500 and the KX3.  Although I do have
> a K3 and KPA500 configured with the KAT500 using the switched arrangement
> described by the KE7X KX3 book, the K3 is powered off and the KPA500 is in
> standby mode during these experiments.
> 
> Although the KAT500 user manual says that to start a tune cycle, at least
> 10 watts needs to be provided.  So, my KX3 is right on the border line and
> from my experience in this setup, it DOES NOT initiate a tune cycle in the
> KAT500.
> 
> Has anyone else been successful in initiating tune cycles for the KAT500
> at 10 watts from the KX3.  My method is to VFO to the desired frequency,
> make sure that the KAT500 is switched to the right antenna, and then key
> down for tuning.  Note: I do not make use of the KX3 built in tuner (I am
> assuming that I should not given I have a low SWR to the KAT500).
> 
> 
> Also, given that my KAT500 is totally programmed across the bands for my
> two antennas, will the KX3 provide enough power (at 10 watts or under) to
> initiate the memory lookup for a tuned segment (I have programmed each 20
> KHz segment on 80 and higher frequency bands using my K3).  Is 5 watts
> supposed to be sufficient for locating the proper memory stored tuned LC
> parameters?  I have not found this to be so (but, here I am not positive
> of the starting conditions and may need to do this test over, it was
> getting late last night).
> 
> Thanks for any help you can be.
> 
> 73, phil, K7PEH
> <snip>





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