[time-nuts] Broadband synthesizer

[paul swed]

Someone in thread said it once and I will repeat.
What are you trying to do?
>From a millihertz to a Ghz is one heck of a range with milihertz res to boot
for under $1K.
Thats a cross between an old HP 3335 and a 8660 series with decreasing
resolution on increasing frequency.
If there is such a beast for under 1K I may want to buy one also.
Regards
Paul.

On Tue, Jul 12, 2011 at 9:45 PM, Will Matney <xformer at citynet.net> wrote:

> Sorry, I got this backwards.
>
> The one I mentioned is a Racal 9082P, not 9028. It will only go to about
> 520 MHz, and so will the Boonton.
>
> Best,
>
> Will
>
> *********** REPLY SEPARATOR  ***********
>
> On 7/12/2011 at 9:41 PM Will Matney wrote:
>
> >If you don't mind cranking the tuning knob for the cavity tuner, the 8640B
> >is a good RF generator, not a synthesizer, which I also have one. The
> >synthesizer I have, which you still crank or spin the knob, which in turn
> >turns a digital encoder, is a Racal Dana 9028P, and I enjoy it over it's
> >simplicity, like I do the 8640B. The Boonton is easy to use too, and I
> >think it is set up similar to the Racal, internally, but I'm not sure. I
> >find these easier, and quicker to use, than keyed inputs, and I have a few
> >of these, which to be honest, draw dust. However, some of the keyed input
> >synthesizers generally have a few more options too.
> >
> >There's just too many different models and makes out there to really say
> >what's best for a situation, without knowing all the features needed, but
> >these are the simplest to use, that I've found, and have a decently clean
> >signal.
> >
> >Best,
> >
> >Will
> >
> >*********** REPLY SEPARATOR  ***********
> >
> >On 7/12/2011 at 6:16 PM J. Forster wrote:
> >
> >>Oops. Must remember to engage brain. It's not phase locked. It's counter
> >>locked.
> >>
> >>Sorry,
> >>
> >>-John
> >>
> >>==============
> >>
> >>
> >>> Bill,
> >>>
> >>> Believe it or not, the HP 8640B is one of the cleanest, as far as
> signal
> >>> goes, that you can get, and you can get an option that will take it to
> 1
> >>> GHz, if I remember. You can pick these up pretty cheap, but they have a
> >>> problem with some plastic gears going out on the tuning assembly. These
> >>> are
> >>> old too, but you can find junkers for parts.
> >>>
> >>> From a report I read on signal purity once, the next best for these
> >>> oldies,
> >>> was a Boonton 102, which outperformed a lot of modern generators
> >>> concerning
> >>> purity. However, it won't go to 1 GHz, I don't think, and I don't think
> >>> there's an option for it.
> >>>
> >>> If you're not too worried about extra clean signal purity, there are
> >>> several others, including ones made by Fluke, and or Wavetek. Don't get
> >me
> >>> wrong, these not are cheap junk, it's just they didn't show as clean an
> >>> output as the HP and Boonton above. Without knowing any other features
> >you
> >>> want, it's hard to tell you anymore than these recommendations.
> >>>
> >>> I forget where I read the test done on several of these RF generators,
> >but
> >>> it's on a website, and others on here may know of the tests I'm
> speaking
> >>> of. Also, on the HP 8640B, one could get those plastic gears recut in
> >>> brass, if they did break, and they would last forever.
> >>>
> >>> Best,
> >>>
> >>> Will
> >>>
> >>> *********** REPLY SEPARATOR  ***********
> >>>
> >>> On 7/12/2011 at 7:41 PM Bill Dailey wrote:
> >>>
> >>>>Looking for recommendations for a broadband synthesizer with external
> >>> reference connection, at least 1mhz to 1ghz with micro to millihertz
> >>> resolution.   Oh yeah under $1000 or so.  I found a real nice one from
> >>> holzworth but it is about $5k which is a bit rich for me.  I have seen.
> >>> Various hp synthesizer but digging through the specs and the number
> soup
> >>> is
> >>> tough for a non-electronics guy.
> >>>>
> >>>>Tia,
> >>>>
> >>>>Doc
> >>>>
> >>>>Sent from my iPhone
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