[Test-Equipment] Re: 141T problems

Wed, 05 Mar 2003 00:06:51 -0600

Absolutely true. The rear connector is not used with the 8444 and the 8554.
With the 8555, one signal is had through the rear connector. This is not the
case with the 8553 and the 8443. The only way to hook these two together is
with the rear connector.
----- Original Message -----
From: "Arthur Shulman" <[email protected]>
To: "John D. Farr" <[email protected]>
Cc: "Dan Rae" <[email protected]>; <[email protected]>
Sent: Tuesday, March 04, 2003 11:11 PM
Subject: Re: [Test-Equipment] Re: 141T problems


> 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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