[time-nuts] HP 3325B Function Generator and GPS based frequencycontrol

[Magnus Danielson]

From: John Ackermann N8UR <jra at febo.com>
Subject: Re: [time-nuts] HP 3325B Function Generator and GPS based frequencycontrol
Date: Tue, 11 Jul 2006 10:39:49 -0400
Message-ID: <44B3B835.9070601 at febo.com>

> I've always been curious about the 3325A vs. B -- there is more price 
> spread between those two than just about any other HP A vs. B model. 
> What's the difference between them, and is it worth anything like that 
> much (obviously, Mike doesn't think so :-) ).

The B model adds modulation source if I recall correctly. I have the B model
but also has some of the A documentation. However, I can't check the details
from here (600 km between me and the manuals). I would not add too much money
on the B model compared to the A model. It's nice but not strictly necessary.

The High Voltage option is nice, but if you are a true time-nut the 001 ref
doesn't add much since you already as a nice ref heated.

The only thing which annoys me is that it doesn't go higher in frequency and
that I wish I could run the modulation source internally even if I like the
contacts at the back. If you don't get the modulation source to do anything
reasnoble, check if you have hooked up a cable!

Cheers,
Magnus