[time-nuts] HP3048A Phase Noise Test System

John Miles jmiles at pop.net
Mon Mar 2 18:56:08 UTC 2009


(Sorry, that came across as somewhat snarkier than intended -- point being,
the 3048A software expects to run on an HP controller or an emulator, and
the emulators, in turn, can work only with full-featured GPIB controller
boards.  You're stuck with what the emulator author supports, and there's no
way to make HTBasic talk to a Softmark or even a Prologix board.)

-- john, KE5FX

> -----Original Message-----
> From: John Miles [mailto:jmiles at pop.net]
> Sent: Monday, March 02, 2009 10:49 AM
> To: Discussion of precise time and frequency measurement
> Subject: RE: [time-nuts] HP3048A Phase Noise Test System
>
>
> Rest assured, you are not going to get the 3048A system (or
> pretty much anything else) working with a Softmark adapter.
>
> -- john, KE5FX
>
>
>
> > -----Original Message-----
> > From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com]On
> > Behalf Of Don Latham
> > Sent: Monday, March 02, 2009 9:14 AM
> > To: Discussion of precise time and frequency measurement
> > Subject: Re: [time-nuts] HP3048A Phase Noise Test System
> >
> >
> > Hardware can be inexpensive. An Australian firm called Softmark sells an
> > USB to GPIB interface on ebay for about $35 or so. I have one, and it
> > works. Software is another problem entirely. If you do not have
> the source
> > code for the Hp program, you will need the manual for the 3048 with all
> > the needed info. I've found the GPIB to be difficult sometimes. The
> > Softmark comes with a dll that can be used with Visual Basic; I'd advise
> > VB6. Good luck.
> > Don
> >
> > Martyn Smith
> > > Hello All,
> > >
> > > I have a couple of HP3048A with option 301 phase noise test sets.
> > >
> > > I run the systems on HP Brio computers with a GPIB interface, running
> > > Windows 95.
> > >
> > > I bought the units as working systems and have no knowledge
> on the 3048A
> > > software and how it works.
> > >
> > > I want to upgrade the system using a laptop with a GPIB interface.
> > >
> > > Has anyone successfully done this?
> > >
> > > Would I need a special GPIB interface and how would I get the
> > software to
> > > talk to the GPIB interface?
> > >
> > > Any help would be much appreciated.
> > >
> > > Best Regards
> > >
> > > Martyn
> > >
> > >
> > >
> > >
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> >
> >
> > --
> > Dr. Don Latham AJ7LL
> > Six Mile Systems LLP
> > 17850 Six Mile Road
> > POB 134
> > Huson, MT, 59846
> > VOX 406-626-4304
> > www.lightningforensics.com
> > www.sixmilesystems.com
> >
> >
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> >





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