[Antennas] DIGITAL_READOUT_HAM-M_BOX?

[Mike Miller]

If the position pot is linear, why couldn't you just put a 
voltage corresponding to the total rotation in degrees on the 
pot and read it with a digital panel meter? If 3600mV =360.0 
deg. then 1800mV = 180.0 deg?

Mike kc9doa

> 
>   Boy, you're asking a tall order. If I remember right, the meter
>   is just that, a meter.
> It's labeled where the far left is South, half-deflection is
> North, and full deflection is South again, right? So, what you
> would need is a circuit that lights up certain LEDs depending on
> how much voltage the circuit is seeing. No voltage, South, half
> North, full South again. Sounds like a simple analog-to-digital
> conversion kit that would work a total of 9 LEDs... S, SW, W, NW,
> N, NE, E, SE, S. There's probably something in an old Popular
> Electronics or a more modern Circut Circus or whatever it's
> called nowadays. If you want more accuracy or a digital readout,
> though, you will have a fun time. Can the rotor go more than 360
> degrees? Like 540 degrees? Then you'd have to consider starting
> it off at North, 0 degrees, and wind around, and use the A/D
> converter to output in degrees instead of a few LEDs.
> 
>   Food for thought? :-)
> 
>                 _Ray_        KBØSTN
> 
> 
> 
> 
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