[Elecraft] Antenna tuners

[Fred Jensen]

No antenna has, at any time, anywhere in any of our lifetimes, been 
"tuned" by an "antenna tuner."  So called antenna tuners are 2-port 
impedance matching networks ... all of them ... and their job is to 
match the impedance on one port to another impedance on the second port, 
period.  Nothing gets "tuned."  They come in a variety of flavors ... a 
pair of push-pull 807's with a resonant tank and a link feed to the 
antenna on open wire line is one.  Everything that happens on the feed 
line [regardless of it's construction] is the sole result of the complex 
impedance at the antenna feed point and the characteristic impedance of 
the feedline.  No magic.

73,
Fred ["Skip"] K6DGW
"Captain Obvious"
Sparks NV DM09dn
Washoe County

On 7/17/2020 5:14 PM, Ken Roberson via Elecraft wrote:
>   Kurt,
> We are not tuning the antenna , we are matching the antenna to the coax at the base of the antenna.
> 73 Ken K5DNL
>
>      On Friday, July 17, 2020, 7:10:32 PM CDT, Kurt Pawlikowski <kurtt at pinrod.com> wrote:
>   
>    
> Ken: In some respects, a "matching device" at the base of the antenna is a tuner! {'-) It accomplishes the same function... {'-) k WB9FMC
>   
>   On 7/17/2020 6:34 PM, Ken Roberson via Elecraft wrote:
>    
>   Antenna tuners
>
> I never use an antenna tuner , on the MF and LF bands realmen use a scopematch at the
>
> Output of the Power Amp and a matching device at the base ofthe vertical antenna – HI Hi.
>
> 73 Ken K5DNL
>