[Elecraft] FS: High End Test Equipment

Wed Jul 31 02:01:59 EDT 2013

I just purchased a few more pieces of test equipment and now I don't have
space for any projects…So, I am offering the following for sale.  I would
rather sell this gear to Amateurs and the asking prices are less than what
you would see on Ebay or elsewhere.  Everything is in very good shape and
top quality, passes all self-tests, etc.

Hewlett Packard E4432A ESG-D3000A Digital RF Signal Generator.
250Khz-3Ghz.  This is an excellent, modern signal generator that is very
easy to use and has excellent level accuracy.  It has a wide range of
internal modulation modes and the modulation generator can be output as a
function generator.  In addition to the analog RF functions, the generator
has a broad range of digital features.  This particular signal generator
has the 1E5, high stability time base and option UN3.  The data sheet is
downloadable from
https://dl.dropboxusercontent.com/u/8297661/HP_ESG_DSERIES.pdf.  The
generator doesn't have the HP/Agilent feet, but they are readily available
on eBay for $10 to $20 if you want them. (Agilent is the successor to HP's
test equipment division and this generator was sold as an Agilent, too.
Downloadable manuals are on the Agilgen site.)  There are photographs of
the generator feeding a 500Mhz, -30dbm signal into an HP 8594E spectrum
analyzer.
https://dl.dropboxusercontent.com/u/8297661/IMG_0418.JPG%20%282%29.JPG

https://dl.dropboxusercontent.com/u/8297661/IMG_0417.JPG%20%282%29.JPG

https://dl.dropboxusercontent.com/u/8297661/IMG_0416.JPG

Price $1,600 plus shipping and insurance.

Rohde & Schwartz CMTA-84 Communication Analyzer with URV.  It is very hard
to sum up the CMTA-84 because it does virtually everything,  1Ghz signal
generator controlled by a high precision OXCO.  There are two audio
oscillators to provide audio out and modulation (both can be operated
simultaneously).  Frequency counter, power meter, 15Mhz oscilloscope, audio
spectrum analyzer, RF spectrum monitor, RF voltage measurement, AF voltage
measurement, DC voltage and current, automated measurements for S/N ratio,
distortion, SINAD, programmable and more.  You can connect a transceiver to
the unit and run a full set of diagnostics manually or from a saved
program.  I also have the very hard to find URV-Z7 probeset for the RF
voltmeter with 20db and 40db attenuators in its original case.  It took me
several years to find this and the only other that I have seen was being
sold for 350 Euros.  The CMTA84 has the front and back protective covers,
the basic manual and I have a photocopied manual from a CMTA-54 (similar
except for the spectrum analyzer/rf monitor).  If you don't have a
workbench that will support lots to tools, this is a super choice.  R&S RF
gear is among the best in the world.  I have put a CMTA84 brochure at
https://dl.dropboxusercontent.com/u/8297661/datasheet_CMT.pdf and
photograph of the front panel with the RF Spectrum monitor in operation.
Price, $1,750 plus shipping and insurance costs.

Tektronix DSA602A and 11302A oscilloscopes, plus probes and plug-ins.  If
you do have space on your workbench, these are marvelous instruments in the
Tektronix 11000 series. The DSA602A is a color oscilloscope with a base
bandwidth of 1Ghz (depending upon plug-in) with 4 500 MSa/sec digitizers
that can be interleaved automatically to produce 2GSa/sec on a single
channel.  This is plenty for most uses.  It has a gorgeous Sony Trinitron
color crt and uses an innovative infrared touch screen plus conventional
controls.  Because it is digital, it is capable of a wide range of
automatic measurements, calculations and analyses.  It can, for instance,
look at the signal in the frequency domain using Fast Fourier
Transformations. The DSA602A has the Option 4C extended memory.  It is a
very precise scope and shares plug-ins and probes with the 11302A.  The
11302A is an analog scope using a microchannel CRT.  This is similar
technology to light gathering night glasses and is used to provide a bright
trace for ephemeral events.  So, if you are chasing a glitch that won't
show up on a digitizing scope (you have to assume a really fast event),
then the 11302A is the right tool.  It also has a built in frequency
counter.  I have the following plug-ins that work with these  and probes
for these scopes.  Plug-ins

(3) 11A32  2 Channel, 400 Mhz 50 ohm/1meg ohm

(1) 11A34 4 Channel, 300 Mhz 50 ohm/1 meg ohm

(1) 11A33 Differential Comparator

(1) 11A52 2 Channel, 650 Mhz 50 ohm

(1) 11A72 2 Channel, 1GHz 50 ohm

Probes

(2) P6134c  400 Mhz, 1 meg ohm. Purchased by me new, still have original
vinyl pouches. Very little use.  These are the standard probes for the
DSA602A and 11302A.

(1) P6135a Differential pair.  The P6135a is a matched pair, but is missing
the plastic screw on sleeve that goes over the tip on one of the probes.  I
have a number of spare sleeves, but mine are not the correct size.

(1) P6156 3.5 Ghz 50 ohm probe, unused and in orginal Tek hard plastic
case.  I also have the original manuals for the DSA602A and I have upgraded
this unit to the last firmware revision.  Is there a downside to these
scopes?  These were meant to be used in labs and they are big and heavy.
So, you will need bench or cart space and you won't be taking them on field
day.  But if you have the space, they are superb.  It would be best if
these were picked up in person, rather than shipped because of the size and
weight.

Price for entire 11000 system, DSA602a/11302A, plus mentioned plug ins and
probes is $1,300.  This is an amazing amount of capability for this price.
 Please don't ask to break up the system.  This should be picked up in
Alameda, CA because of size and weight.

Tektronix TDS784D Digital Phosphor Oscilloscope.  This is a later
generation 4 channel scope with a bandwidth of 1Ghz and a sampling rate of
4GSa/sec on one channel or 1GSa/sec on 4 channels simultaneously.  It has
even more power than the DSA602A, and is smaller and lighter.  It uses a
lcd shutter over a CRT to provide a color display.  I have just replaced
the CRT/Shutter (very hard to find) and it has less than 1 hour of use
since replacement.  This is very important because some DPO scopes have dim
screens.  Also, the scope was calibrated in January of this year, so it is
still in calibration.  A DPO scope can simulate an analog scope because it
provides information concerning the repeatability of an event through gray
scale/color presentation.  It, thus has some of the best attributes of a
digital scope (digital precision, analysis, storage) with the analog
scope's real time display of events.  The TDS784D also has a VGA output
that allows you to send the display information to a computer monitor or
projector.  If the scope is picked up in Alameda (saving me the effort of
packing), I will throw in a Dell flat screen monitor that can be used with
the scope.  Photographs showing the front panel and displaying a 100 Mhz
signal are at https://dl.dropboxusercontent.com/u/8297661/IMG_0622.JPG and
https://dl.dropboxusercontent.com/u/8297661/IMG_0621.JPG.

Price $1,950 plus shipping and insurance.

-- 
Howard Ashcraft
W1WF