[time-nuts] Wanted - AN/URQ-10 manual

[paul swed]

Goodness FORTH and a R1051. Who would have thought.
I am a big fan of forth also. Loved the way you could extend the
dictionary. Plus it ran like a bat out of heck fast. Like you I went
through ETA school as the second class to be trained on the 1051. At
$27,000 each did not think I would ever own one.
I do have a operational 1051 purchased many years after leaving the service
from Fair Radio and a RT-918 all operational. Though the RT918 was a
serious $25 basket case from the air force.
DDS for the 1051. I have often thought about that. Today they are so cheap
that you could build a composite unit or 3 or so separate ones for the
translatersyn. What will drive me to do that is the pesky aging crystals
that I have already had to deal with on the RT918. To keep this in a
time-nuts spirit, they all run on the RB reference or the GPS reference.
See back to time-nuts.
Regards
Paul
WB8TSL

On Sun, Nov 18, 2012 at 3:32 AM, DaveH <info at blackmountainforge.com> wrote:

> Another FORTH fan here.
>
> Originally written to control radio telescopes -- hardware was changing all
> the time so the language was by definition designed to be extensible.  Want
> to add a function? Define it, give it a name and bingo...
>
> Sometimes less __IS__ Moore.
>
>
>
> > -----Original Message-----
> > From: time-nuts-bounces at febo.com
> > [mailto:time-nuts-bounces at febo.com] On Behalf Of Don Latham
> > Sent: Saturday, November 17, 2012 23:19
> > To: M. Simon; Discussion of precise time and frequency measurement
> > Subject: Re: [time-nuts] Wanted - AN/URQ-10 manual
> >
> > Forth forever!!!
> > Don L
> > M. Simon
> > > Can't help you with the manual but I just wanted to say
> > that the 1051
> > > was one of my favorites. Loved the PLLs. I worked on an upgrade for
> > > Stewart Warner back in the early 80s. As part of a
> > prototype I put two
> > > Z-80 systems in the space between the front panel and the main gear.
> > > Part of its purpose was to interface to the 1553 bus. I
> > also implemented
> > > a DDS in TTL for fine tuning. I still like tube front ends for mil
> > > radios for ruggedness. But you can't sell it because of
> > wear out issues.
> > >
> > >
> > > The Navy didn't buy in to the prototype. Collins beat us.
> > The code for
> > > the processors was written in Forth. The Navy "code
> > inspector" said it
> > > was some of the best written code he had seen in several
> > years. We also
> > > could complete a design cycle - including code - in a
> > month. The Collins
> > > boys had a team 10X as large as ours (we had 3). And it took them 6
> > > months to complete a design cycle using "C". I was project
> > manager and
> > > lead engineer. I was mostly hardware but I did some
> > software and rode
> > > heard on the coders. Forth was my idea.
> > >
> > >
> > > I also put a Z-80 inside the companion 1KW transmitter. The
> > RF inside
> > > the transmitter was a few volts per inch. I used a sealed
> > box and a  lot
> > > of feed through filters. It worked the first time.
> > >
> > > I also worked with the gear in Navy ETA school. And went on
> > to become a
> > > Nuke so I didn't see that radio gear again until about 15
> > years later.
> > >
> > >
> > > Simon
> > >
> > >
> > > Engineering is the art of making what you want from what
> > you can get at
> > > a profit.
> > > _______________________________________________
> > > time-nuts mailing list -- time-nuts at febo.com
> > > To unsubscribe, go to
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> > > and follow the instructions there.
> > >
> > >
> >
> >
> > --
> > "Neither the voice of authority nor the weight of reason and argument
> > are as significant as experiment, for thence comes quiet to the mind."
> > De Erroribus Medicorum, R. Bacon, 13th century.
> > "If you don't know what it is, don't poke it."
> > Ghost in the Shell
> >
> >
> > 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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