[Premium-Rx] WJ-9073-2 tracking generator.

[Terry O'Laughlin]

The WJ-9073-2 is a tracking preselector for the 8617/8618 series.  It 
requires a special option card inside the receiver that sends serial data 
to the control the tuned frequency of the preselector.  WJ internal notes 
list it as working with the WJ-8617B-26 and WJ-8618B-19 receivers.  Both of 
these are S1 receivers that do not require matching EPROMS on options cards 
and the processor board so I would assume the serial card is all that is 
needed to make the preselector work with the receiver (only an S1 receiver 
naturally).

I have never seen the controlling card or documentation and I don't even 
know its 6 digit number.  A former WJ engineer told me the data stream is 
probably close to serial RS-232 as WJ never strayed far from this standard 
in their designs.  I have one on my shelf that I intend to reverse engineer 
some day.  My first guess would be to start with the preselector remote 
control codes for the closely related 8615 series, which are in the 8615 
manual.

Terry O'


At 08:56 AM 8/3/2003 -0700, you wrote:

>All:
>
>
>
>I am currently playing around with a WJ 9073-2 tracking generator, but it 
>wants instructions on how to work, expecting serial data for scan / track 
>rates (??) and a friend told me that it can be married to the WJ 8618A 
>receiver.  Just making a guess at what it might be, if it is, in fact a 
>female BNC by the name of Scan Out.  If by chance it is, what does the 
>command protocol consist of, so that I may actually look at it with a 
>scope, and sort of know what I am either looking at, or for.  Or if I am 
>off base, please perform course correction !
>
>
>
>Large sums of great thanks in advance, and regards to all !
>
>
>
>-Scott
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