[TowerTalk] OT ?? - Manual tuners

[Roger (K8RI)]

On 11/26/2010 11:57 PM, Roger (K8RI) wrote:
>
> On 11/26/2010 12:35 PM, Jim Miller KG0KP wrote:
>> Settings, Not brand comparisons; (Dentron MT3000A, but that is not the
>> question)
>>
>> If I am able to match my exciter to the antenna via a setting of ---
>>
>> #1.  "0-J-0" (Both dials fully to the left)
>> and also at
>> #2.  "35-K-50" (Left dials set at 35 (of 100 on top half of dial) and right
>> dial set at 50)
>>
>> with virtually the same (each completely acceptable) SWR resulting,
>>
>> WHICH is the most efficient ????
Sorry it took me a day to get this and I see you've received several 
answers already.

There should be at least some difference in SWR and or output.
The SWR is straight forward, if the SWR is the same then pick the 
setting that gives the highest forward power.  If that too is the same 
then pick the setting that has the "largest output capacitance" 
according to the my manual.

73

Roger (K8RI)
>> A: Which should I be trying to match for the highest efficiency, using the
>> most capacitance or least capacitance?
>> B: Does the inductor setting have more effect on efficiency than the
>> capacitance?
> This should be covered in the manual. I know it is in the Palstar AT5K,
> but I don't happen to have the manual at had at the moment.  I'll try
> and dig it out when I go back out.   I've logged the settings for each
> antenna on each band  so it's a relatively quick set up. OTOH as I now
> have most of the antennas down I'll need to redo the logging when the
> new antennas go back up.
>
> If my memory holds until I get back out there...and then back in, I'll
> post their comments...unless some one else beats me to it.
>
> 73
>
> Roger (K8RI)
>> Thanks es 73, de Jim KG0KP
>>
>>
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