[Elecraft] K2 turning power behavior

[Stewart Baker]

On Fri, 21 Jan 2005 09:23:49 -0300, Michael Harris wrote:
> G'day,
>
> At the salt mine so not near #1400 at present.
>
> How exactly do you determine that transmission has stopped?  Does the
> receive unmute?
>
> On #1400 when I cross the QRP/QRO boundary level, in either direction,
> there isn't any unmuting and just for interest I set up as split and
> the TX frequency remained selected.
>
> I must confess that the one thing I didn't check for was modulation.
> I get the impression that the "feature" is subtle rather than gross.
> Will check again at the first opportunity.
>
> Regards,
>
> Mike VP8NO
>
> ----- Original Message -----
> From: "S55M" <s55m at siol.com>
> To: <elecraft at mailman.qth.net>
> Sent: Thursday, January 20, 2005 8:45 PM
> Subject: Re: [Elecraft] K2 turning power behavior
>
>
>> OK.I will write it down agn step by step...
>>
>>
>> 1.Turn Power button to 0,1W (full left)
>>
>> 2.Press PTT
>>
>> 3.When on TX without releasing PTT turn power up over 10W limit to
> turn on
>> 100W PA.
>>
>> When i do this my K2 stops transmiting above the 10W point (when
> KPA100
>> clicks up).
>> The only thing to do then is to release PTT and press it again and
> "voila"
>> on the AIR again.
>>
>> If i go in reverse direction (turning power from 100Wtts to less
> then 10W)
>> everything works fine!
>>
>> K2 Nr-3204 SW- 1.09 and 2.04
>>
>> It's not a problem but must be a hint.....
>>
>>
>> S55M-Adi
>>
>>
>> ----- Original Message -----
>> From: "Donald Nesbitt" <drnesbitt at bellsouth.net>
>> To: "Michael Harris" <mike.harris at horizon.co.fk> "S55M"
> <s55m at siol.com>
>> <Elecraft at mailman.qth.net>
>> Sent: Friday, January 21, 2005 12:00 AM
>> Subject: Re: [Elecraft] K2 turning power behavior
>>
>>
>>> Not on mine either.  73  --don n4hh K2/100/KAT100 #2028
>>> ----- Original Message -----
>>> From: "Michael Harris" <mike.harris at horizon.co.fk>
>>> To: "S55M" <s55m at siol.com> <Elecraft at mailman.qth.net>
>>> Sent: Thursday, January 20, 2005 5:22 PM
>>> Subject: Re: [Elecraft] K2 turning power behavior
>>>
>>>
>>>> G'day,
>>>>
>>>> <snipo>
>>>> So...if i press the PTT (dot line on keyer when on USB) without
> talking
>>>> (or maybe also with ssb modulation because i did not test it)
> and turn
>> the
>>>> power button on 100W and then reduce the power back to minimum
> my K2
>> stops
>>>> transmitting.I must then release the PTT and press it again to
> go into
>> TX
>>>> mode.
>>>> Is this happening with all K2's?
>>>> <snipo>
>>>>
>>>> Not on #1400 (external KPA100/KAT100 combo) unless I've read the
> above
>>>> incorrectly.
>>>>
>>>> Regards,
>>>>
>>>> Mike VP8NO
>>>
>>>
>>> --
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>>
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>
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If you whistle/speak into the mic you get no RF out !

73
Stewart G3RXQ