[Elecraft] KAT500 actual radiated power during tuning

Ken K6MR k6mr at outlook.com
Mon Nov 6 20:08:24 EST 2017


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: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> on behalf of E T <etksubs at gmail.com>
Sent: Monday, November 6, 2017 4:52:17 PM
To: Fred Jensen
Cc: elecraft at mailman.qth.net
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 <k6dgw at foothill.net> 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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