[Elecraft] time for KPA1500 - but why "no tubes?"

David Gilbert xdavid at cis-broadband.com
Tue Feb 21 00:25:42 EST 2012


i don't know how you get the idea that it isn't fixed tune.  Just 
because it can handle a 3:1 SWR without self-destructing does not mean 
it isn't fixed tune.  What tuning parameters do you think are changing?

Dave   AB7E



On 2/20/2012 9:34 PM, Hank Garretson wrote:
> On Mon, Feb 20, 2012 at 8:18 PM, Ron D'Eau Claire<ron at cobi.biz>  wrote:
>
> Note that "No Tune" means, simply, "Fixed Tuned", set for a 50 ohm
>> non-reactive load on each band. If we don't have an antenna reasonably flat
>> across the whole band we add an "Antenna Tuner" to the output which is
>> simply moving the tuning we used to do on the xmtr output to an outboard
>> box!
>>
> Not exactly. My "No Tune" ACOM 2000A will automatically handle up to 3:1
> SWR on all bands except 160 where the limit is 2:1. Sometimes output power
> is reduced, and sometimes an external tuner is helpful. but for the ACOM at
> least, "No Tune" does not mean "Fixed Tune."
>
> 73,
>
> Hank, W6SX
>
> Mammoth Lakes, California
>
> Elevation 8083 feet in John Muir's Range of Light


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