[time-nuts] HP 5359A - Startable Phase Locked Oscillator - D. CHU

Hi, Phase startable oscillator a great invention. Do you know any papers that implement this idea into newer technology (e.g. ASIC)? I am actually thinking of realizing a project that would base on the Chu's invention but will have better jitter parameters. Do you have any comments or experience on

Re: [time-nuts] HP 5359A - Startable Phase Locked Oscillator - D. CHU

On 10/07/2010 09:34 AM, Piotr Swietochowski wrote: Hi, Phase startable oscillator a great invention. Do you know any papers that implement this idea into newer technology (e.g. ASIC)? I am actually thinking of realizing a project that would base on the Chu's invention but will have better jitter

Re: [time-nuts] 60 KHz Receiver

Hi The one thing that an alternator system had available was *power*. They are fairly efficient and you put lots of horsepower into them. Numbers in the 100's of KW come to mind What we're talking about here is more or less a page from the history of radio in the early 1900's. People that

Re: [time-nuts] 60 KHz Receiver

Bob Camp wrote: Hi The one thing that an alternator system had available was *power*. They are fairly efficient and you put lots of horsepower into them. Numbers in the 100's of KW come to mind What we're talking about here is more or less a page from the history of radio in the early 19

Re: [time-nuts] 60 KHz Receiver

Telstar was a BIG DEAL! There was even a pop song about it. -John > I was surprised to see how late it was before the first *wired* > transatlantic phone call was made: 1956 ($12/3 minutes, 36 lines > available). the first Telstar call wasn't that much later in 1962. > > > ___

[time-nuts] hammarlund TM700-A document

found in an old pile of stuff: Hammarlund TM700-A Secondary Frequency Standard Operating Instructions 7 pages and a cover letter. Free, if anyone wants it. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com

Re: [time-nuts] 60 KHz Receiver

On 10/07/10 17:09, J. Forster wrote: Telstar was a BIG DEAL! There was even a pop song about it. Reading the Bell labs books on the Telstar project is very nice. Nice fold-outs on control-panels etc. They did spent a lot of time to engineer the whole thing. Their antenna setups that would t

Re: [time-nuts] 60 KHz Receiver

And an Astounding Science Fiction novella --the trouble with telstar-- Don - Original Message - From: "Magnus Danielson" To: Sent: Thursday, October 07, 2010 2:16 PM Subject: Re: [time-nuts] 60 KHz Receiver On 10/07/10 17:09, J. Forster wrote: Telstar was a BIG DEAL! There was eve

Re: [time-nuts] 60 KHz Receiver

Could you tell me which book you have on mind ? I'd love to read the story. I visited Telstar ground station in Pleumeur-Bodou, France once. There is museum there now, called "Cite des Telecoms". They preserved original horn-like antenna used for Telstar communication and lots of original equipmen

Re: [time-nuts] 60 KHz Receiver

There was / is? a ground station near Andover Massachusetts also. The antenna was called a Hogg Horn. -John === > Could you tell me which book you have on mind ? I'd love to read the > story. > > I visited Telstar ground station in Pleumeur-Bodou, France once. There > is museum > the

Re: [time-nuts] 60 KHz Receiver

Telstar ... now that brings back memories. Whenever it was within range, they would interrupt TV broadcasts and show whatever was being relayed (poor choice of word, I know). I used to leave the TV on just to catch whatever they had on. One afternoon, while I was in another room, I heard a switc

Re: [time-nuts] 60 KHz Receiver

Hi Magnus its was a pity they didn't manage to communicate with some of my office collegues so as to to confirm the "hand" of the polarisation they were using though :-)) Goodhilly changed the feed for the other polarisation on the day of the first test, and it was a bit of a TV disaster. Lanion ha

Re: [time-nuts] 60 KHz Receiver

Long long gone completely though I think a plack is there. It was on chronicle several years ago. On Thu, Oct 7, 2010 at 6:02 PM, J. Forster wrote: > There was / is? a ground station near Andover Massachusetts also. The > antenna was called a Hogg Horn. > > -John > > === > > > Could

Re: [time-nuts] 60 KHz Receiver

j...@quik.com said: > There was / is? a ground station near Andover Massachusetts also. The > antenna was called a Hogg Horn. Andover Massachusetts or Andover Maine? http://en.wikipedia.org/wiki/Andover_Earth_Station Hogg seems to be the guy (or main guy) who put a parabolic reflector on a h

Re: [time-nuts] 60 KHz Receiver

And I have sitting on my desk of the hand made (at Bell Labs) klystron local oscillators used in the FM-FDM equipment at Andover Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address:

Re: [time-nuts] 60 KHz Receiver

And at Andover, Comsat took it all down and cut it up to save taxes rather than save history. Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG

Re: [time-nuts] 60 KHz Receiver

No, Andover Maine. Hogg horn (very low sidelobes) was built by Bell Labs for Andover Maine and PB, France. The English, being English, had to design and build their own antenna at Goonhilly. They got the circular polarity wrong so missed the first linkup, while the French were in solid. Les

Re: [time-nuts] 60 KHz Receiver

That's the same short-sighted, profit is king mentality that resulted in the demolition of the Metropolitan Opera's "Old House". So much history in that building, just bull- dozed for an office building (or some such). 73, Dick, W1KSZ -Original Message- >From: Lester Veenstra >Sent:

Re: [time-nuts] 60 KHz Receiver

Far as I know the telstar station was in andiver maine. Believe my bell labs journals confirm that. Additionally those journals describe all kinds of details of the telstar program. On Thu, Oct 7, 2010 at 7:39 PM, Lester Veenstra wrote: > No, Andover Maine. > > Hogg horn (very low sidelobes) was

Re: [time-nuts] 60 KHz Receiver

On 10/08/2010 02:08 AM, paul swed wrote: Far as I know the telstar station was in andiver maine. Believe my bell labs journals confirm that. Additionally those journals describe all kinds of details of the telstar program. Being Bell Labs they included some long-term radiation tests of semicon

Re: [time-nuts] 60 KHz Receiver

I visited Pleumeur Baudou shortly after it opened, my father was an engineer with the French Telecom ministry (PTT at the time) and he knew people there. I remember the gigantic offset horn and the maser amplifier. Too bad I do not have pictures from this event. Didier Sent from my Verizon Wi

[time-nuts] GPS backup for the stationary time and frequency user

Saw this interesting article several years ago about using an 18 inch dish pointed at a WAAS satellite: http://www.freqelec.com/gps_gnss/waas_for_telecom_wp_5-06.pdf -Bob ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to h

Re: [time-nuts] 60 KHz Receiver

Oops. I didn't know there was an Andover ME. Thanks, -John === > > j...@quik.com said: >> There was / is? a ground station near Andover Massachusetts also. The >> antenna was called a Hogg Horn. > > Andover Massachusetts or Andover Maine? > > http://en.wikipedia.org/wiki/Andover_Ea

[time-nuts] Telstar MASER was Re: 60 KHz Receiver

http://adsabs.harvard.edu/full/1963NASSP..32.2167W -John = ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

Re: [time-nuts] GPS backup for the stationary time and frequency user

I presented a similar talk at the May 4, 2003 meeting of AMSAT-DC. I added the fact that a codeless GPS receiver could remove the bi-phase modulation and yield a CW carrier for frequency standard applications. Amateur radio at the forefront, again. After a recent move, I am in the process of

Re: [time-nuts] GPS backup for the stationary time and frequency user

On 10/08/2010 03:02 AM, Robert Harmon wrote: Saw this interesting article several years ago about using an 18 inch dish pointed at a WAAS satellite: http://www.freqelec.com/gps_gnss/waas_for_telecom_wp_5-06.pdf Notice footnote 12 (on page 9). Will not a standard GPS antenna have the wrong cir

Re: [time-nuts] GPS backup for the stationary time and frequency user

You are correct. The dish feed should be LHC. The feed would work for WAAS or other GPS satellites while in the beam pattern, but reject satellites seen through spill over, etc. John WA4WDL -- From: "Magnus Danielson" Sent: Thursday, October 0

Re: [time-nuts] GPS backup for the stationary time and frequencyuser

When I said the feed would work, I was meaning it would work if LHC. The illustrations and text imply you could just place a normal GPS receiver at the feed location, but the polarization would be wrong. John WA4WDL -- From: "jmfranke" Sent: T

Re: [time-nuts] GPS backup for the stationary time and frequency user

In another paper, at the FEI web site, the author emphasizes that he did not change the polarization, but did see a 12 dB gain with the dish. There is even a nice image with a typical timing GPS antenna mounted at the feed slide 27 in http://www.frequencyelectronics.com/gps_gnss/waas_for_telec

Re: [time-nuts] 60 KHz Receiver

Indeed its a common mistake that everyone thinks its ma. Andover me was chosen because its was miles from any place and was in a hole essentially. They strung microwave towers to the place. On Thu, Oct 7, 2010 at 9:06 PM, J. Forster wrote: > Oops. I didn't know there was an Andover ME. > > Thank

[time-nuts] Possible HP 10811 instability clue Cont ’d.

List, Wrote https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

Re: [time-nuts] 60 KHz Receiver

How much history was lost when whatever stood before the "Old House" was demolished and bull dozed so that an Opera house (or some such) could be built? We are all nostalgic about the past, but doesn't the future deserve to be born? -Chuck Harris Richard W. Solomon wrote: That's the same short

Re: [time-nuts] Possible HP 10811 instability clue Cont ’d.

Perry Sandeen wrote: List, Wrote Not so. A turning point of the frequency vs temperature curve is a location where the the tempco is zero. It may be located at a maximum, at a minimum or at a point of inflection. Semantics aside, I believe that they do have a turning point that is selected