[R-390] Antenna Trimmer

[KA9EGW]

Does it vary from one vendor to another?

-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
On Behalf Of Cecil
Sent: Tuesday, November 06, 2012 7:41 PM
To: rbethman
Cc: r-390 at mailman.qth.net
Subject: Re: [R-390] Antenna Trimmer

Not true....need a picture?

Sent from my iPad

On Nov 6, 2012, at 5:14 PM, rbethman <rbethman at comcast.net> wrote:

> The "red" dots ONLY apply to the IF adjustment.
> 
> There are NONE on the Antenna Trimmer.
> 
> Re-read the post by Dave Wise.
> 
> Bob - N0DGN
> On 11/6/2012 5:47 PM, Steve Hobensack wrote:
>> Adding to my original post, there are no red marks or dimples. The only
mark on the horizontal gear is the small drive pin that holds the gear to
the shaft. I believe the mid point between the two peaks is the place where
the variable cap is either at full mesh or no mesh. It's difficult to  guess
if it is full mesh or no mesh without opening the unit. That doesn't look
easy. Two peaks can happen at any angle up to 180 degrees. If there is only
one peak through the full 360 degree turn, it usually means there is not
enough capacatance and the front end needs re-aligned. If half mesh is on
the zero numerial, the second peak will be out of the numbered area. Right?
>> 
>> Looking at the tiny drive pin that goes through the horizontal gear,
where is the red dot, and where does it face during alignment?
>> 
>> Thanks
>> N8YE Steve                       
>> 
> 
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