[Elecraft] OT: manual & automatic tuners

Sat Jan 11 04:43:00 2003

Whilst in full agreement with the preceding comments Tim, I feel its 
worth pointing out (as this may be the reason you ask) that the Elecraft 
auto tuner seems to be able to match pretty much everything I hang off 
the end of it as an excuse for an aerial :-) It has the added advantage 
of 'memorizing' the settings so subsequent band changing is virtually 
instantaneous.
73,
Trev G3ZYY

In message <004101c2b924$be9e45c0$[email protected]>, "George, 
W5YR" <[email protected]> writes
>To me, the big advantage of  a manual tuner is its ability to take a
>beating and not require hundreds of dollars of factory-level repair.
>All internal tuners are relatively "tender" and just can't take the
>high voltages and currents that sometimes prevail, especially in the
>process of tuning a critical antenna system. This is not such a
>critical matter at QRP power levels, of course. But even with 100
>watts, improper tuning of some antenna systems can produce damaging
>voltage and current levels in a tuner.
>
>73/72, George
>Amateur Radio W5YR -  the Yellow Rose of Texas
>In the 57th year and it just keeps getting better!
>Fairview, TX 30 mi NE of Dallas in Collin county EM13qe
>K2 #489  IC-765 #2349 IC-756 PRO  #2121 IC-756 PRO2 #3235
>
>
>
>----- Original Message -----
>From: "Stuart Rohre" <[email protected]>
>To: <[email protected]>; <[email protected]>
>Sent: Friday, January 10, 2003 9:27 PM
>Subject: Re: [Elecraft] OT: manual & automatic tuners
>
>
>> Sure there is an advantage to using a manual tuner over an
>automatic.  Some
>> automatics can have trouble getting 1:1 with a "soft" peak to the
>resonance.
>>
>> Manual tuners can get to 1:1 if you are patient and know the order
>of
>> adjustment for maximum efficiency for your tuner.  AND, they need NO
>power,
>> of if the power goes out, they still work if manual!
>>
>> Of course, if power is out, will the rig work?  If K2 with built in
>battery,
>> YES.
>> 72,
>> Stuart K5KVH
>
>
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-- 
Trevor Day