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The Rigol DS1052E

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anthonycroberts:
Split the cable in the middle and swap pins 2&3.  Leave 5 (gnd) connected.  Based on previous posts pertaining to the use of simple 3-pin serial, the rest of the pins should be OK to be left disconnected.

-Tony

flolic:
Yes. Cut it in the middle and reconnect wires in a right way. Of all wires, you need only pins 2, 3 and 5 to be connected  ;)
http://digital.ni.com/public.nsf/allkb/1EE0DD8AF67922FA86256F720071DECF

Simon:
well I just prised the connector open only to have the end pop out and leave wires sealed inside, ah this will be one big mess to rewire, looks like a hacksaw and stanly knife job and a complete rewire together again

EDIT: I think I'll just cut the rest of the plug off and start from scratch

luky315:
There's another possibility to generate very fast pulses:
Take a fast D-Flipflop (AHCT series) and connect the output directly to the CLEAR input. The result is a Pulse with a length of <3ns on each rising Edge of the input clock signal.
Not fast enough? Then connect this output to the base of a HF npn Transistor with a ~30Ohm resistor on the collector to 5V and the Emitter connected to GND. After the collector use a matched 50Ohm Coplanar Waveguide with an approximately 4mm long stub to GND. The result is a positive and a negative Puls with < 150ps duration. If you don't like the negative pulse, use a fast Schottky Diode to cut it away. Than you have presumably the fastest hobby pulse generator.
The bad  news is that the DS1102 isn't fast enought for this...

Mastro Gippo:
Thank you rf-loop for the good suggestions, but I won't have access to the R&S SG for the next week, so you'll have to wait for the updated results, if you're still interested.


--- Quote from: KTP on March 19, 2010, 07:13:39 pm ---I don't see the reason for people to be smug or try and hide the information (or make vague references to how "easy" it is but not describe anything).

--- End quote ---

Usually people do this to encourage people to figure it out themselves. But not with bad intentions! Especially in this case, the solution is really trivial and can be found by anyone reading the hints given in previous posts. By "forcing" them to learn and search a bit, you help them getting familiar with what they are going to do and take more responsibility for their actions.
By the way, I didn't change the serial number on mine, I just changed the single character 'D' to 'B' so the number still matches the old one.
I saved the log file of the session for future reference too.

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