Hi Walter
The 11K vertical plug ins are not simple.
Most will give you 1% or much better accuracy.
The plug in data and cal info is read by the mainframe on power up so
you need intelligent plug in's
Tek only made various vertical amps 11A52 & 71 are limited in use as
they were the first units available.
If I was buying a system I would want a DSA602A with 1 x 11A72 (2ch 1GHz
50 ohm), 1 x 11A33 (full differential to 200MHz) and a 11A34 (400MHz 4ch
1M ohm/50R)
This would give you maximum flexibility in a system.
The early mainframes has poor digitizing rates (10MS/s),(11401,11402)
If you want a 2467 in a mainframe buy a 11301/2/A (can't see much value
personally).
Sampling was available in 11800/CSA series - a lot better than the 7K
systems which can be a pain to trigger.
Only vertical amps were available as specan's and samplers have their
own sweep/timebases.
You can run a 7K vertical in the 11K - just cut off a plastic protrusion
at the rear of the plug in.
You also need to tell the mainframe that you have a module in a specific
slot as it can't see the module (no smarts).
You also don't get vertical scaling - it reads U (units) - only really
useful for 7K standardisers during cal (you need 3 modded to -10)
I have a nice 11403A/11A81 in my home workshop - it is good to 3GHz and
can take the other modules.
It's probably the newest mainframe too.
Major downside to 11K is they take up a large area on the bench and are
a two man lift to be safe.
Still they are very useful and we use a DSA602A every week in the
workshop for cal of video gear and other high bandwidth/accuracy work.
Does a great job on serial digital video data streams.
As for the 2505/10 - have nothing and have not seen one for 10 years -
you can buy a USB NI module now with 16 bit analogue I/O for about $700
so most people have gone that way.
Personally any of the Tek gear with computers dates fast and is
difficult to support - one advantage of the older gear is it still works
and performs decades after it was built - can't see a TDS7000 being any
value after 10 years (if it will still work)
Regards,
Denis
________________________________
From: TekScopes@... [mailto:TekScopes@...] On
Behalf Of wshawlee2
Sent: Wednesday, 7 February 2007 3:36 AM
To: TekScopes@...
Subject: [TekScopes] 11K Series question, is there anything other than
11A plug ins?
I have never seen one, but I can't help but wonder, does any plug in
exist for the 11K series of frames OTHER than a simple vertical
11A-series unit?
sweep is internal to the frame, so I can't see any use for a sweep,
but curve tracer, logic analyzer of spectrum analyzer, maybe? Has
anybody run 7K plug in there with much luck? I have noted some
earlier postings with comments that they do function, but with no
remote control or readout.
Anyway, I got a few 11K frames and plug ins, and am going to start
tinkering, so I'm happy to hear from anybody that has experience with
these.
ALSO, still trying to find 2505 software and 25A series plug-ins, if
you can help, please let me know,
all the best,
walter
sphere research
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