[time-nuts] HP 5335A and HP-IB (GP-IB)

Heathkid heathkid at heathkid.com
Wed Aug 4 05:10:09 UTC 2010


Thanks John!  I'll give it a try in the morning and let you know the 
results.

73 Brice KA8MAV

----- Original Message ----- 
From: "John Miles" <jmiles at pop.net>
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Sent: Wednesday, August 04, 2010 12:52 AM
Subject: Re: [time-nuts] HP 5335A and HP-IB (GP-IB)


>
>> I received the Prologix GPIB-USB controller today as well as my
>> HP 5335A.  I
>> haven't unpacked the counter yet but I'll try out the Prologix
>> tomorrow at
>> work with the 5335A we have there.  Any suggestions on getting it
>> to control
>> it as well as simply log output?  Honestly, I haven't installed
>> any of the
>> software yet so I don't know what I'm in getting myself into.  I've tried
>> searching the archives but haven't had any luck.  Does anyone
>> have a 5335A
>> and the Prologix interface that can give me a head start?
>
> Quick and dirty instructions for basic frequency measurements with my TI 
> app
> (lacking any other documentation):
>
> - Install the adapter and its drivers
> - Install http://www.ke5fx.com/gpib/setup.exe (5 MB, requires Win2K or
> later)
> - Set your counter to talk-only mode and set up a measurement that will
> generate frequency or TI readings at something less than the counter's 
> full
> rate.  I recommend starting with frequency readings at one per second to
> keep things simple while debugging the connection.
> - Run the Prologix configurator in my package and select the virtual COM
> port for your adapter.
>
> At this point you should see the counter readings scrolling by in the TTY
> window.
>
> - Hit 'Update CONNECT.INI' and exit the Prologix configurator
> - Run the time-interval analysis app
> - Select "Acquire->Acquire from GPIB counter in talk-only mode"
>
> You should see the same readings in the 'Incoming Data' window that you 
> saw
> earlier.
>
> - Assuming you're looking at frequency readings, select 'Frequency (Hz)' 
> and
> enter any necessary values in the 'Numeric Field #' and multiplier fields 
> to
> scale your counter's readings to Hz units.
>
> - Hit 'Start Measurement'.  It should begin plotting frequency, phase, and
> ADEV, etc. readings.
>
> Initially, you should hit the 'f' key (Measurement->Frequency difference)
> and make sure the values being plotted make sense.  In 'f' mode, the
> 1-second row in the frequency chart should match the counter's display
> exactly, apart from any floating-point rounding error in the LSDs.  Once 
> you
> get to this point, you are up and running.
>
> I've never used a 5335A with the program, but the talk-only acquisition
> option should work with almost any model counter.  If you try it and have
> problems getting these steps to work, let me know (offline so as not to
> clutter up the list) and we'll figure it out!
>
> -- john, KE5FX
>
>
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