[ADXA] bright ideas needed

[Dennis Schaefer]

I’ll look at the schematic again - I measured 500 ohms across the whole pot
but the center wiper contact is open.  I tried a second control box - same
result.   However, I need to see where that fuse is in the circuit - would
be nice if that was it!   Thanks.

On Wed, Mar 20, 2024 at 7:27 PM J. Setcer <j.setcer at gmail.com> wrote:

> I have had that exact problem at least twice. Both times for me it was a
> 1/8 amp, yea one-eighth of an amp, fuse in the control box. Not the pot up
> in the rotor.
>  I could NOT find a 1/8 amp fuse, so I used a 1/4 amp fuse both times.
> (shame on me).
>  Anyway, it's something you can try right from your chair.
> -QJ
>
>
> On Wed, Mar 20, 2024 at 6:59 PM Dennis Schaefer <dennisw5rz at gmail.com>
> wrote:
>
>> My rotator quit indicating.  It rotates, but the pot in the motor unit
>> has opened up.  I can run outside and see which way it is pointing, but
>> that isn't very elegant, especially since my back and neck are still a
>> little messed up.  I need a way to temporarily tell the direction until I
>> get it fixed.
>>
>> I thought about a camera, but the way our house is arranged, the only
>> window I can put one in faces West and gets direct sun into the lens
>> several hours a day.  Its a cheap camera, and it might not hurt anything,
>> but it would make the camera unusable for that time.  I could probably get
>> an outdoor-rated camera and point it somewhere out of direct sun.  That's
>> the only real solution I can think of.
>>
>> The antenna and rotator are on a Hazer that only comes down to the garage
>> roof.  I can't climb on the roof anymore, so I think the Hazer is going to
>> go away in favor of a more standard configuration.  Someone who knows way
>> more than I do is coming by later in the week and will advise me.
>>
>> I will probably put the Force-12 C3 back up but I sure wish there was
>> something I could do to make it work better, or at least have a better SWR,
>> on 12 meters.  I guess a QRO antenna tuner would be the best option.  The
>> 4.5 SWR on 12M doesn't make the amp very happy.  I have a Dentron tuner
>> that is stout enough, but it does not have a bypass switch.  It would
>> probably be easy to rig something with two switches, but that would have
>> the possibility for accidentally running power into an open feed would
>> always be there.  The C-3 has two direct coupled elements for 10 meters,
>> and one is for operating FM above 28.9 Mhz.  I wish I knew what would
>> happen if I extended that element to make it resonate on 12 meters.  I plan
>> to get help to get this all done in one shot, so I don't have the luxury of
>> time for antenna experimentation.
>>
>> Ideas or comments are welcome!
>>
>> 73,
>> Dennis
>>
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