[Elecraft] KX3 and its "TUNE" selection.

[Fred Jensen]

Jerry:  Just in case you are not [yet] aware ... Small so-called 
"magnetic loops" must be exactly resonant meaning that you go to TUNE 
mode [i.e. feeding power to the loop] and then adjust the loop for exact 
resonance.  While exact resonance is indicated by zero reactance looking 
into the feedline, min SWR will usually work pretty good.  But it really 
has to be at the minimum which is often quite sharp.  Getting the loop 
tuning close, and then letting the ATU do the rest is a very quick way 
to create a dummy load.

73,

Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

Lee Hiers wrote on 8/23/2022 1:18 PM:
> 1) the KX3
> 2) it's just a carrier
>
> You can ID either before or after the Tune process.
>
> 73 de Lee, AA4GA
>
>
>
> On Tue, Aug 23, 2022 at 4:07 PM JEROME SODUS <jsodus at comcast.net> wrote:
>
>> Hello,
>>
>> Yesterday, I was re-reading the KX3-manual to prepare for putting into use
>> a magnetic-loop-antenna.
>>
>> The KX3 manual, on page 14, has this wording "TUNE is used to put out a CW
>> signal at the power level selected by the PWR control.".
>> This is new territory for me as I have never have used  "TUNE" or "XMIT"
>> button.
>>
>> Neither the manual nor the great book "The Elecraft KX3-Portable" by Fred
>> KE7X (SK) have answers to my questions, which are:
>> 1. From where does this CW signal come?
>> 2. What information is in that CW signal?
>> The concern I have is the CW signal will get out from my mag-loop-antenna
>> into the "ether", so my call-sign needs to be there to satisfy the FCC.
>>
>> TIA for any assistance.
>> 73 jerry km3k KX3#6088
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