[Amps] High SWR

[Roger (sub1)]

On 7/4/2011 5:20 PM, Dr. David Kirkby wrote:
> On 04/23/09 04:50 PM, Scott McGrath wrote:
>> SWR is an obsession with the CB set and some others CB's could not
>> tolerate a high SWR due to the cheap finals used the high RF voltages
>> would blow the junction.     This effect created the oral tradition of
>> 1:1 SWR == Antenna System Goodness (tm).   It's hard to counteract what

The fixation with SWR was around well before CB even existed.  it just 
became a lot more prevalent. <:-))


>> 'everybody' knows.
>>
>> In reality and especially with a tube amplifier and a Pi output tank the
>> antenna system can be brought into resonance at a wide range of
>> impedances and resonance is what we are looking for and it really is
>> Antenna System Goodness in MOST cases.
> You can't change the resonate frequency of an antenna by adjusting the
> amplifier. The frequency of resonance of an antenna is for all practical
> purposes independent of how the amp is tuned.

Nor will an "antenna tuner" located at or in the shack change the 
resonant frequency of the antenna.

73

Roger (K8RI)