I know the training process, have done it many times on all my tuners, the KX3
and KX2 built-in, KXPA100, also an MFJ-993B and KAT500. And no, I currently do
not have the K3 and the cables to transmit band switching. But even after
training I find that all of these will occasionally perform a full tuning cycle
even when close to a programmed frequency.
So of course given that my antenna is stable I *shouldn’t* need to do a full
tune yet there it is. The tuner behavior is out of my control if it decides to
perform a full cycle when I press the tune button after a band or range switch.
My point is that the AH-4 specs say:
- 0.3 W RADIATED POWER
- Radiated power during tuning is less than 0.3 W, minimizing interference
to other stations.
I’m just asking if the KAT500 has similar capabilities.
Erik W1QED
> On Nov 6, 2017, at 8:08 PM, Ken K6MR <[email protected]> wrote:
>
> Assuming your antennas are stable, you should only need to go through the
> tune process once. The KAT500 will remember the proper settings for each
> frequency segment (see the manual for the size of the segments on each band)
> and will instantly return to those values at the first hint of rf. So spend
> some time training the tuner on each band and you don’t have to worry about
> interference. Once it is trained you can just find a frequency and start
> transmitting. No tune cycle required.
>
> I note you don’t have a K3, but if you did the tuner would automagically
> follow the transceiver and switch values without any rf at all.
>
> Ken K6MR
>
> From: [email protected]
> <mailto:[email protected]> <[email protected]
> <mailto:[email protected]>> on behalf of E T
> <[email protected] <mailto:[email protected]>>
> Sent: Monday, November 6, 2017 4:52:17 PM
> To: Fred Jensen
> Cc: [email protected] <mailto:[email protected]>
> Subject: Re: [Elecraft] KAT500 actual radiated power during tuning
>
> I can get and hook up a power meter, still looking for a definitive answer
> maybe from Wayne and Eric. If it puts out the full tuning power that is
> going into it (e.g. 10-20W) then I want to shift away from any signals I’m
> trying to tune to (rude to step on conversations), but if it’s using a low
> power like a RigExpert that would most likely not interfere then you get
> better accuracy…
>
> Erik W1QED
>
>
> > On Nov 6, 2017, at 7:26 PM, Fred Jensen <[email protected]
> > <mailto:[email protected]>> wrote:
> >
> > My KAT500 [when I still had it] put out variable power levels while it was
> > tuning. When it was tuned, it put out the TUNE power [25 W] into the
> > antenna. More than once, someone called QRZ? after tuning in a clear spot.
> > They probably saw my little signal on a fairly dead band on a panadapter.
> > Is that what you were asking for?
> >
> > 73,
> >
> > Fred ["Skip"] K6DGW
> > Sparks NV DM09dn
> > Washoe County
> >
> > On 11/6/2017 3:37 PM, E T wrote:
> >> I understand the requirements, and the ICOM IC-7300 puts out 12.5W by
> >> default (can be adjusted via service menus). I'm looking for a definitive
> >> answer as to the actual radiated power. Like I said, the ICOM AH-4 tuner
> >> specifies its actual radiated antenna power but the KAT500 does not so
> >> that's why I'm asking.
> >>
> >> Thanks and 73,
> >> Erik Tkal - W1QED
> >>
> >
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