[time-nuts] HP 3048A system software

[John Miles]

Hmm... from the PHASE.DAT example, it looks like you're just supposed to
send codes like "L17" to turn on the 400 MHz oscillator (A9 in the diagrams
around 5-40 in the reference manual).  This doesn't seem to have any effect,
though.  The "LISTEN" LED comes on, but nothing seems to happen.

Are any special GPIB tweaks needed that you're aware of?  I would definitely
like to see the register list you've compiled (it can be sent to
jmiles at pop.net, although posting it here would have the advantage of adding
it to the archives.)  Thanks!

-- john, KE5FX

> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com]On
> Behalf Of Kent
> Sent: Tuesday, February 05, 2008 10:44 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] HP 3048A system software
>
>
> John,
>
> The HPIB commands for the 11848A relating to the RF section are
> very similar
> to the 35601A commands. The 35601A commands are spelled out in the 3047A
> Phase.dat file in the subroutine SetupInterface (search for: NAME:
> Setupinterface). The commands for the 35601A low-frequency
> section, on the
> other hand,  are quite different as this hardware differs
> considerably from
> the 11848A.  However, I have been working on a program to control
> both units
> and have decoded the register assigments for the 11848a interface. If you
> are interested in this information, contact me off-list..
>
> Kent Falkenstein
>
> ----- Original Message -----
> From: "John Miles" <jmiles at pop.net>
> To: <time-nuts at febo.com>
> Sent: Tuesday, February 05, 2008 7:50 PM
> Subject: [time-nuts] HP 3048A system software
>
>
> > Question -- was the HP 3048A software ever made available as a
> > human-readable BASIC program, as the 3047A software was?
> >
> > It looks like any attempt to write code for the 11848A is going
> to require
> > a lot of reverse engineering to discover the GPIB commands.  It
> could save
> > me a lot of time if there's a BASIC version out there somewhere.
> >
> > -- john, KE5FX
> >
> >
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