Thanks to John, K2TQN and Tom, W3FRG, I have a pdf copy of the manual.
73,
geo - n4ua
On Thu, May 23, 2013 at 3:08 PM, George Dubovsky <n4ua.va@gmail.com> wrote:
> I have one of these old beasts, and it works! It is the predecessor to the
> HDR-300, and it has a unique point-and-shoot controller with a great-circle
> map on the face. Date codes inside the controller indicate that it is
> probably 1972 vintage.
>
> I tried a web search for information and did turn up a CQ product review
> that describes the theory of operation, but I would really like to find a
> schematic and an adjustment procedure for the span of the display. If I
> dial in a 90 degree change (using a short cable on the bench), the rotator
> moves more than 90 degrees, telling me that it was probably adjusted for
> the run of cable up some previous tower. There are a few pots inside,
> including one that appears to have been added after manufacture. I really
> don't want to reverse-engineer this box - does anyone have a manual or a
> link to one?
>
> 73,
>
> geo - n4ua
>
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