[Test-Equipment] Re: 141T problems

Wed, 05 Mar 2003 00:11:35 -0500

You may not have to make a rear panel connection at all. I have a 8444A unit
that was originally front-panel connected to my 8445B RF deck with some type of
double-shielded RG-59 type cable. I moved the TG to my 8555A deck and mad up a
cable for rear panel connection for the Second LO. I still connect First LO &
Scan via the front panel. It works perfectly!

The rear-panel connector is convenient but not essential in this setup as its
output is in parallel with the front panel BNC.

You need someone to verify which inputs & frequencies are actually required.
>From the info you have given already, I suspect the real fault is in the TG.
Perhaps someone else could help?

Arthur Shulman

"John D. Farr" wrote:

> Dan:
> I don't believe that the 'L' series plug-ins lacked the coax connector in
> the rear of the plug-in that are required to get the LO's to the "D"
> connector on the rear of the mainframe. I've heard that it could be added
> later without much trouble but I'd imagine that the connectors are next to
> impossible to find.
> John
> ----- Original Message -----
> From: "Dan Rae" <[email protected]>
> To: <[email protected]>
> Sent: Sunday, March 02, 2003 9:47 AM
> Subject: [Test-Equipment] Re: 141T problems
>
> > Carl, your 8443 and 8553 should work together.   Some very early models of
> the RF plug-in
> > were missing one of the coax connections to the cannon connector from the
> IF section.  It
> > can be added; details in the manual.    If you are seeing broadband noise
> at the output,
> > then it's got a problem (the 8443A, that is).  It's relatively easy to
> sort out, if you have
> > the manual.   It has the same rather easy to burn out attenuators as the
> 8640B, but it's
> > less likely that it will have been plugged into a transmitter.  Look first
> at the output
> > amplifier, and work back from there.
> >
> > The 8444 is designed to work with the 8554 and to some extent with the
> 8555 plug-ins, it
> > will not work with the 8553, the IFs are different.  Could the 8553L that
> you mention
> > actually be an 8554L?
> >
> > Good luck
> >
> > Dan
> > ac6ao g3ncr
> >
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> >
>
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