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[hp_agilent_equipment] wrote: Wow, sounds like the guy had too much blood in his caffeine stream.

54123a - 34 ghz 54121a - 20 ghz 54121a - 12.5 ghz <<< typo, should have been 54122a

54123a - 34 ghz 54121a - 20 ghz 54121a - 12.5 ghz ?I think that's accurate. I've seen test sets, not saying which one (likely the 54121a though) for around 100$. An anomaly? Perhaps, but deals can be

That's an achievable price for a 54121A. Here's one that went for $105 + ship: http://www.ebay.com/itm/HP-AGILENT-54121A-4-CHANNEL-TEST-SET-/252046177093

I will give that a try on Monday. I might be able to tell the DVM to do some math too - but I think that slows down the output.

Looking at Block Diagram of 4 Channel Test Set for 54120 Mainframe shows it contains Horizontal (A1) and Vertical (A2) Assembly. Where did you see a 4 Channel test set for under $100? Dennis

You are getting it! but in integer arithmetic. If you convert to floating point at that part of the program you will will most probably get the same result. You need to do division arithmetic before

So..... how do I get the value of (1/x(1,1,))*3 that I need?

To add to Alan's answer and assuming X(1,1) is always an integer (which I'm not sure of, without knowing your program) and V(N,2) is an integer (because it's sent as SINT): If X(1,1)=0, 3/X(1,1) will

[hp_agilent_equipment] wrote: 10MHz?! The 54120B is a 20GHz sampling oscilloscope/TDR system with risetimes in the low double-digits of picoseconds. The test set is the input sampler. "Can't get there

Hello group, just acquired a 54120b, seems to "work" fine (was told by seller it didn't power up). Is the designated test set the only one that will work? Are there workarounds/juryrigs? Sounds stupid

the 3/X(1,1) "not working" is probably due to mixed formats and 3/X(1,1) is probably correctly giving a value of zero. Dividing intergers returns an integer and dumps any fractional residuals. Alan

Thanks to all for your help! You pointed me in the right direction and helped me find the many errors in my thinking. As it turns out the values I used in the past were not SINT at all. The 558 I

We really know too little about your configuration and programs (you didn't mention your 1/X requirement any more) but here's another attempt to help, based on assumptions that me be incorrect: The HP

Hi ok the X array is stored in SINT (I also believe this is signed integer where numbers below 8xxx in hex are positive and above are negative) format. BUT your offset value of 0.051 is not an

Battery might be getting weak... It would have been a good idea for him to record the actual error message.

"The unit will drive up to just 5 instruments. I suppose it is fair value compared with some other offerings of this function." Reason being that each instrument sources 5V through 3k. You need to

Hi Alan,?????????? <It would be nice if the basic command window would read a text file command sequence and display the responses.> there is truly fantastic freeware windows batch

Here is the background of this golden oldie system I have to make work.: A Viper card (with onboard HP Basic and integrated HPIB) in a PC sends a command to the HP DMM which causes it to respond by

This clone now sees instruments - NI PCI-GPIB+ defaults to being controller and conflicted with the clone. Once that was fixed in NI-Max, the clone seemed to be reliable, though I've not yet retested