[Collins] 18S-4 & ARC-38A

[Michael Tauson]

Hi, Folks,

I am about to take delivery on a Collins 18S-4 and a C-3428/ARC-38A.  Yes, I
know they don’t go together but the timing is such they’re both coming about
the same time but from two different sources.

What I would like is the connectors to match the 18S-4, the RT-594/ARC-38A and
the C-3428 control head.  (Mounts for the two RT sets would be nicer but I’ve
learned not to look for miracles. <G>)  Also, while I’ll want a manual later
on, for the moment I would like to find a schematic for the 18S-4 and its
control box.  Failing connectors, the pinouts would be nice but they’ll be in
the manuals/schematics so this is not an issue.  Fair has the manual for the
ARC-38A and the frequency setting book (as well as the RT-594) so they aren’t a
real problem.  

While on the subject, as I understand it, the RT-594 is USB only as opposed to
USB/LSB.  Has anyone tried modifying it for LSB or for making the channel
selection a bit “rubbery” to allow tuning between the .5 or 1 Kc selections? 
(This last is more for curiosity than anything.)

These sets will eventually find themselves aboard the Jeep for use in
CW/RTTY/*shudder* voice mode operation though I’m not entirely sure I know how
I’ll handle running the 18S-4 RTTY yet.  

Okay, you may now start the loud derisive laughter.  I’m used to it.  *sigh*

Best regards,

Michael, K3MXO


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