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 <[email protected]> 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: [email protected] > > [mailto:[email protected]] 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 -- [email protected] > > > To unsubscribe, go to > > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > > 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 > > > > > > > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
