[Elecraft] Antenna tuners

[Rick NK7I]

Save one; the screwdriver antenna on my truck is tuned (coil adjusted) by the TurboTuner attached to my radio until a match is found. 

And an argument could be made that a SteppIR controller performs a similar function. 

The rest are matching circuits to compensate for the disparity of input to output.  😜

73,
Rick NK7I

Email spiel Czech corruptions happen

> On Jul 17, 2020, at 7:00 PM, Fred Jensen <k6dgw at foothill.net> wrote:
> 
> 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
>> 
> 
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