[Elecraft] AM power for KPA500
Grant Youngman
nq5t at tx.rr.com
Thu Apr 14 11:53:32 EDT 2011
Always helps to include text ... :-)
My Ranger won't quite make 375w carrier. Do I have a problem? ;-)
I think the Elecraft amp will make 150w carrier. Hardly a big difference. But enough for a good time anyway.
Not all Desks or KW-1s or similar transmitters are throttled back. Unless it's to drive a 4CX15000 or something :-$
Sent from my iPhone
On Apr 14, 2011, at 10:45 AM, Grant Youngman <nq5t at tx.rr.com> wrote:
>
>
> Sent from my iPhone
>
> On Apr 14, 2011, at 10:41 AM, Guy Olinger K2AV <olinger at bellsouth.net> wrote:
>
>> That will be the same ratio as always, set by physics instead of the
>> manufacturer: carrier set for one quarter of the PEP rating. That
>> would be 125 watts carrier for 500 watts PEP.
>>
>> It always seems to be too small.
>>
>> In the old days of the Johnson desk kilowatt, that was 1 kW carrier
>> INPUT, with a usual 700 to 750 watts carrier output. With voice
>> processing, that was a well modulated 3kW PEP output. There was a
>> reason those guys always sounded so loud, and for how heavy that rig
>> was.
>>
>> My AL1200 needs about 30 watts carrier to transmit the max 375 watts
>> carrier. Just about what my Ranger will do.
>>
>> 73, Guy
>>
>>
>>
>>
>>
>> On Thu, Apr 14, 2011 at 10:15 AM, Stephen Victor <victorsj at yahoo.com> wrote:
>>> Hi. What carrier power will the KPA500 put out for well modulated AM?
>>>
>>>
>>> Thanks and 73
>>> Steve WA2DTW
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