Re: [time-nuts] Cesium 133 on kickstarter
I wonder if a CSAC used as a wristwatch would need constant C-field adjustment? On Thu, Apr 10, 2014 at 12:41 PM, Attila Kinali att...@kinali.ch wrote: On Thu, 10 Apr 2014 10:43:13 -0400 Ronald Held ronaldh...@gmail.com wrote: I am curious what people think of this watch at least from the time-nut POV. Considering that they are not the first, but at least the third with that idea (see archives for other CSAC wrist watches). But seriously, a modern, temperature compensated quartz watch goes better than +/-10s in half a year (about 1ppm), which is already about as good as you need for a wrist watch. Any better is just unnecessary overengineering. Of course, it's a different matter if you like to show of to your peers. Other than that, i probably would buy a CSAC and put it into some equipment instead. :-) Attila Kinali -- I pity people who can't find laughter or at least some bit of amusement in the little doings of the day. I believe I could find something ridiculous even in the saddest moment, if necessary. It has nothing to do with being superficial. It's a matter of joy in life. -- Sophie Scholl ___ 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. ___ 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] Loran
Does anyone know if they are using original antennas for chains that existed during the heyday of LORAN C? I remember driving past the tower at the Seneca Army Depot in Romulus, NY , and I was in awe of the size of the tower. I know the Coast Guard, then Homeland Security had control of the site. I am not sure if the tower is still there since some of the sites were decommissioned. I was wondering if they will be using the Master/Slave system, or do they have a new way to triangulate? I know the worry of GPS jamming has caused a lot of worry. I was wondering if cell sites that absolutely need super accurate timing will have LORAN as a backup timing source? I know if they lose GPS, they lose their ability to hand off to adjacent working cells (Island Cell Effect?). On Fri, Nov 15, 2013 at 4:18 PM, Bill Riches bill.ric...@verizon.netwrote: Hi Paul, I stand corrected! Wildwood is up at 1615 now - 30/9! Beer call at 1700! My last comment was in regards to the last evening activity that was not Wildwood. 73, Bill, WA2DVU Cape May -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of paul swed Sent: Friday, November 15, 2013 1:49 PM To: David McGaw; Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Loran And by the way it is still on as of 2pm est. Now the real test. They seem to go home for the weekend and beer time is typically 5pm or so. Will it still be on at 8pm? Curious minds want to know. Regards Paul WB8TSL On Fri, Nov 15, 2013 at 1:47 PM, paul swed paulsw...@gmail.com wrote: I can only go by the press release that was above and would guess its wildwood. Its clearly not in ma. That used to hit me with a heck of a signal 1000uv plus On Fri, Nov 15, 2013 at 10:22 AM, David McGaw n1...@alum.dartmouth.orgwrote: Can you tell whether it is coming from Wildwood or another site? David N1HAC On 11/14/13 9:02 PM, paul swed wrote: Sounds pretty good not banging in here like the old chain did. austron 2100 says 38db srs700 says 47 rcvr gain and 25 db noise margin. hp3856b's says -53dbm or 500uv. Regards Paul WB8TSL On Thu, Nov 14, 2013 at 5:40 PM, J. Forster j...@quikus.com wrote: What's the signal strength like? -John === Oh that is indeed interesting that they are moving forward. The GRI is 89700. SRS700 locked and looking good. Just brought the Austron 2100 and 2100F on line. The 2100 is tied to the local RB and the f is tied to the HP3801. The SRS700 looks at the RB. I pulled the Austron 2000 out of the rack several months ago. Needed the space. Regards Paul WB8TSL. Near Boston. On Thu, Nov 14, 2013 at 2:41 PM, Tom Van Baak t...@leapsecond.com wrote: Well lets see. Just warming up the srs700. UrsaNav must have received some support $ Regards Paul WB8TSL Paul, See below, via Adobe OCR on a JPG press release: --- From: UrsaNav Press Contact Sent: Thursday, November 14, 2013 10:31 AM Subject: UrsaNav Accepts eLoran Transmitter from Nautel UrsaNav News Release November 14, 2013 Two Companies - One Dream UrsaNav Accepts Delivery of First Production Nautel NlAO eLoran Transmitter Bedford, Massachusetts, USA.- After extensive Final Acceptance Testing at Nautel's Hackett's Cove, NS facility, UrsaNav has accepted delivery of the first production NL40 Loran-C and Enhanced Loran (eLoran) transmitter. This seventh generation Loran transmitter technology is the culmination of over six years of collaborative development between the two companies. The transmitter successfully met or exceeded all of the requirements of the u.s. Coast Guard Specification of the Transmitted Loran-C Signal. Testing was conducted into a simulated antenna matching the characteristics of a u.s. Coast Guard standard 625-foot Top-Loaded Monopole. The NL-Series transmitters are capable of transmitting Loran-C, eLoran, Chayka, and eChayka in any combination at power levels exceeding one megawatt. They are qualified for today, and prepared for tomorrow. UrsaNav's President, Charles Schue, shown accepting the transmitter from Nautel's President, Peter Conlon, commented: Resilient PNT begins with complementary technologies, layered one upon the other in such a way that the user is ensured improved continuity of operations over a sole-source solution. eLoran is the terrestrial coprimary complement to GNSS, and our technology makes eLoran the most economical, efficient, and wide-area alternative when GNSS is not available. UrsaNav provides the world's most advanced solutions for Low Frequency Alternative Positioning, Navigation, Timing, and Data, including high-performance eLoran Receiver, Command and Control, and Differential Loran technology. We are the exclusive, global, reseller of Nautel's industry-leading,
Re: [time-nuts] Loran
I used to do Loran-C timing syncs for the Air force using manual time syncs on the 3rd cycle of a specific station in a chain. it was quite the ordeal. While doing that I came across a Loran C timing receiver and a Loran C simulator that was made by a company ( can't remember the name - wasn't Austron). Never could figure it out, or find the company, but I still have both items. maybe I can still figure it out since it was just a simple 100KHz receiver with timing circuitry. Jerry On Fri, Nov 15, 2013 at 5:49 PM, paul swed paulsw...@gmail.com wrote: Gerald The new roll of the thing called LORAN has nothing to do with location any longer. But we all still call it LORAN. Old habit. Its new purpose if the government funds it is PNT dissemination along with some ability to send messages. In theory to backup GPS for timing. UrsaNAV did pick up at least 1 facility in NJ and they might have purchased another 1 or 2 but have no need to purchase all of the old sites. They produced a ppt that showed as little as 1 site would cover the US and two really would fill in the blanks. some place semi-central. For us time nuts even the single central site would be useful as long as they stick to the current transmission format. Internationally they might have to stick to this modulation method since Europe uses the frequency for true eLORAN. I don't really know. But I am not complaining as the old receivers have all of there green lock lights on at 1745. Guess no one went for beer. Though they might shut down at utc I have seen them do that. The benefit of all of this is as an alternate frequency source that in Boston has always been far superior to the 60 Khz WWVB transmission. In fairness to WWVB if I had a magical processor as good as the LORAN receivers/processors, maybe it would do far better then what I see on the wwvb receivers I have. I just do not believe it would equal the LORAN quality. Currently all of the receivers are saying the signal strength is the same as last night. Though in actually listening to the signal I have a healthy dose of man made noise today. Regards Paul WB8TSL On Fri, Nov 15, 2013 at 4:53 PM, Gerald Chafee gcha...@gmail.com wrote: Does anyone know if they are using original antennas for chains that existed during the heyday of LORAN C? I remember driving past the tower at the Seneca Army Depot in Romulus, NY , and I was in awe of the size of the tower. I know the Coast Guard, then Homeland Security had control of the site. I am not sure if the tower is still there since some of the sites were decommissioned. I was wondering if they will be using the Master/Slave system, or do they have a new way to triangulate? I know the worry of GPS jamming has caused a lot of worry. I was wondering if cell sites that absolutely need super accurate timing will have LORAN as a backup timing source? I know if they lose GPS, they lose their ability to hand off to adjacent working cells (Island Cell Effect?). On Fri, Nov 15, 2013 at 4:18 PM, Bill Riches bill.ric...@verizon.net wrote: Hi Paul, I stand corrected! Wildwood is up at 1615 now - 30/9! Beer call at 1700! My last comment was in regards to the last evening activity that was not Wildwood. 73, Bill, WA2DVU Cape May -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of paul swed Sent: Friday, November 15, 2013 1:49 PM To: David McGaw; Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Loran And by the way it is still on as of 2pm est. Now the real test. They seem to go home for the weekend and beer time is typically 5pm or so. Will it still be on at 8pm? Curious minds want to know. Regards Paul WB8TSL On Fri, Nov 15, 2013 at 1:47 PM, paul swed paulsw...@gmail.com wrote: I can only go by the press release that was above and would guess its wildwood. Its clearly not in ma. That used to hit me with a heck of a signal 1000uv plus On Fri, Nov 15, 2013 at 10:22 AM, David McGaw n1...@alum.dartmouth.orgwrote: Can you tell whether it is coming from Wildwood or another site? David N1HAC On 11/14/13 9:02 PM, paul swed wrote: Sounds pretty good not banging in here like the old chain did. austron 2100 says 38db srs700 says 47 rcvr gain and 25 db noise margin. hp3856b's says -53dbm or 500uv. Regards Paul WB8TSL On Thu, Nov 14, 2013 at 5:40 PM, J. Forster j...@quikus.com wrote: What's the signal strength like? -John === Oh that is indeed interesting that they are moving forward. The GRI is 89700. SRS700 locked and looking good. Just brought the Austron 2100 and 2100F on line. The 2100 is tied to the local RB and the f
Re: [time-nuts] HP Z3817A Reverse Engineering
If you need my info I would be glad to contact you direct. Maybe I could throw in a little extra. Gerald Chafee On Fri, Nov 8, 2013 at 10:07 AM, ashle...@aol.com wrote: Hi All, We acquired a T-Bolt from an estate , its untested, seal is unbroken, it might be good or might be Drek, but in either event its free to someone for postage from 97113 to the lower 48. It will fit into a USPS Small Rate Box for $6. We could ship it international, but at this point we don't know the cost. Thank You Thank You Kiss-Electronics Ms Ashley Hall 183 N 5th Avenue Cornelius, Oregon 97113 W7DUZ www.kiss-electronics.com -Original Message- From: Ed Palmer ed_pal...@sasktel.net To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Sun, Oct 27, 2013 1:54 pm Subject: Re: [time-nuts] HP Z3817A Reverse Engineering Hi David, Skip Withrow and I were able to figure out the connections and the basic operational features. I've attached a document that describes our findings. I wouldn't mind picking up another E1938 oscillator, but I'm reluctant to buy one that might have mismatched oscillator and circuit board (i.e. the serial numbers don't match). I've asked a couple of vendors if the serial numbers matched, but they won't respond. Does anyone have any experience with a mismatched combination? How's their performance? Ed On 10/27/2013 1:26 PM, David Hooke wrote: Hi Ed, My E1938 also came from a very battered STLN4096A from the same source, and I might also try to get the other boards functional. Could you share the details of the GPS connections, and which GPS receiver you used? Cheers, david I recently purchased a Motorola STLN4096A with the HP E1938A oscillator. I bought it for the oscillator only. Then I got intrigued by the HP Z3817A GPSDO that's included. I've reverse engineered most of it and I've got it running. The 1 PPS is really good ( 1000 measurements, Std. Dev. of 200 ps, min to max range of 1.5 ns) and the HUP is very slowly dropping (currently at 13 us after ~1.5 days) as the oscillator works out the kinks after it's long sleep. It's dropping much slower than my Z3801A did when I first turned it on. There's one input that I haven't been able to figure out. I've got data in and 1 PPS in from the GPS receiver. Everything seems to be working so I'm at a loss what that the other input could be for. There are no clues to it's function because it appears to go into one of the Xilinx chips. Does anyone have any more info on the unit? Has anyone figured out the other input? I have searched the net and the archives. There's very little info or discussion on this unit. Ed ___ 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. ___ 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. ___ 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. ___ 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] HP Z3817A Reverse Engineering
Are you looking for a Paypal payment for postage? Gerald Chafee On Fri, Nov 8, 2013 at 10:07 AM, ashle...@aol.com wrote: Hi All, We acquired a T-Bolt from an estate , its untested, seal is unbroken, it might be good or might be Drek, but in either event its free to someone for postage from 97113 to the lower 48. It will fit into a USPS Small Rate Box for $6. We could ship it international, but at this point we don't know the cost. Thank You Thank You Kiss-Electronics Ms Ashley Hall 183 N 5th Avenue Cornelius, Oregon 97113 W7DUZ www.kiss-electronics.com -Original Message- From: Ed Palmer ed_pal...@sasktel.net To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Sun, Oct 27, 2013 1:54 pm Subject: Re: [time-nuts] HP Z3817A Reverse Engineering Hi David, Skip Withrow and I were able to figure out the connections and the basic operational features. I've attached a document that describes our findings. I wouldn't mind picking up another E1938 oscillator, but I'm reluctant to buy one that might have mismatched oscillator and circuit board (i.e. the serial numbers don't match). I've asked a couple of vendors if the serial numbers matched, but they won't respond. Does anyone have any experience with a mismatched combination? How's their performance? Ed On 10/27/2013 1:26 PM, David Hooke wrote: Hi Ed, My E1938 also came from a very battered STLN4096A from the same source, and I might also try to get the other boards functional. Could you share the details of the GPS connections, and which GPS receiver you used? Cheers, david I recently purchased a Motorola STLN4096A with the HP E1938A oscillator. I bought it for the oscillator only. Then I got intrigued by the HP Z3817A GPSDO that's included. I've reverse engineered most of it and I've got it running. The 1 PPS is really good ( 1000 measurements, Std. Dev. of 200 ps, min to max range of 1.5 ns) and the HUP is very slowly dropping (currently at 13 us after ~1.5 days) as the oscillator works out the kinks after it's long sleep. It's dropping much slower than my Z3801A did when I first turned it on. There's one input that I haven't been able to figure out. I've got data in and 1 PPS in from the GPS receiver. Everything seems to be working so I'm at a loss what that the other input could be for. There are no clues to it's function because it appears to go into one of the Xilinx chips. Does anyone have any more info on the unit? Has anyone figured out the other input? I have searched the net and the archives. There's very little info or discussion on this unit. Ed ___ 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. ___ 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. ___ 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. ___ 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] HP Z3817A Reverse Engineering
I would be interested, Gerald Chafee On Fri, Nov 8, 2013 at 10:07 AM, ashle...@aol.com wrote: Hi All, We acquired a T-Bolt from an estate , its untested, seal is unbroken, it might be good or might be Drek, but in either event its free to someone for postage from 97113 to the lower 48. It will fit into a USPS Small Rate Box for $6. We could ship it international, but at this point we don't know the cost. Thank You Thank You Kiss-Electronics Ms Ashley Hall 183 N 5th Avenue Cornelius, Oregon 97113 W7DUZ www.kiss-electronics.com -Original Message- From: Ed Palmer ed_pal...@sasktel.net To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Sun, Oct 27, 2013 1:54 pm Subject: Re: [time-nuts] HP Z3817A Reverse Engineering Hi David, Skip Withrow and I were able to figure out the connections and the basic operational features. I've attached a document that describes our findings. I wouldn't mind picking up another E1938 oscillator, but I'm reluctant to buy one that might have mismatched oscillator and circuit board (i.e. the serial numbers don't match). I've asked a couple of vendors if the serial numbers matched, but they won't respond. Does anyone have any experience with a mismatched combination? How's their performance? Ed On 10/27/2013 1:26 PM, David Hooke wrote: Hi Ed, My E1938 also came from a very battered STLN4096A from the same source, and I might also try to get the other boards functional. Could you share the details of the GPS connections, and which GPS receiver you used? Cheers, david I recently purchased a Motorola STLN4096A with the HP E1938A oscillator. I bought it for the oscillator only. Then I got intrigued by the HP Z3817A GPSDO that's included. I've reverse engineered most of it and I've got it running. The 1 PPS is really good ( 1000 measurements, Std. Dev. of 200 ps, min to max range of 1.5 ns) and the HUP is very slowly dropping (currently at 13 us after ~1.5 days) as the oscillator works out the kinks after it's long sleep. It's dropping much slower than my Z3801A did when I first turned it on. There's one input that I haven't been able to figure out. I've got data in and 1 PPS in from the GPS receiver. Everything seems to be working so I'm at a loss what that the other input could be for. There are no clues to it's function because it appears to go into one of the Xilinx chips. Does anyone have any more info on the unit? Has anyone figured out the other input? I have searched the net and the archives. There's very little info or discussion on this unit. Ed ___ 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. ___ 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. ___ 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. ___ 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] HP Z3817A Reverse Engineering
Money has been sent via Paypal On Fri, Nov 8, 2013 at 10:07 AM, ashle...@aol.com wrote: Hi All, We acquired a T-Bolt from an estate , its untested, seal is unbroken, it might be good or might be Drek, but in either event its free to someone for postage from 97113 to the lower 48. It will fit into a USPS Small Rate Box for $6. We could ship it international, but at this point we don't know the cost. Thank You Thank You Kiss-Electronics Ms Ashley Hall 183 N 5th Avenue Cornelius, Oregon 97113 W7DUZ www.kiss-electronics.com -Original Message- From: Ed Palmer ed_pal...@sasktel.net To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Sun, Oct 27, 2013 1:54 pm Subject: Re: [time-nuts] HP Z3817A Reverse Engineering Hi David, Skip Withrow and I were able to figure out the connections and the basic operational features. I've attached a document that describes our findings. I wouldn't mind picking up another E1938 oscillator, but I'm reluctant to buy one that might have mismatched oscillator and circuit board (i.e. the serial numbers don't match). I've asked a couple of vendors if the serial numbers matched, but they won't respond. Does anyone have any experience with a mismatched combination? How's their performance? Ed On 10/27/2013 1:26 PM, David Hooke wrote: Hi Ed, My E1938 also came from a very battered STLN4096A from the same source, and I might also try to get the other boards functional. Could you share the details of the GPS connections, and which GPS receiver you used? Cheers, david I recently purchased a Motorola STLN4096A with the HP E1938A oscillator. I bought it for the oscillator only. Then I got intrigued by the HP Z3817A GPSDO that's included. I've reverse engineered most of it and I've got it running. The 1 PPS is really good ( 1000 measurements, Std. Dev. of 200 ps, min to max range of 1.5 ns) and the HUP is very slowly dropping (currently at 13 us after ~1.5 days) as the oscillator works out the kinks after it's long sleep. It's dropping much slower than my Z3801A did when I first turned it on. There's one input that I haven't been able to figure out. I've got data in and 1 PPS in from the GPS receiver. Everything seems to be working so I'm at a loss what that the other input could be for. There are no clues to it's function because it appears to go into one of the Xilinx chips. Does anyone have any more info on the unit? Has anyone figured out the other input? I have searched the net and the archives. There's very little info or discussion on this unit. Ed ___ 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. ___ 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. ___ 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. ___ 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] HP Z3817A Reverse Engineering
Money has been sent - Paypal On Fri, Nov 8, 2013 at 11:00 AM, Mart Sakalov mart.saka...@ericsson.comwrote: Hello. Yes please. PAYPAL only. Best regards Mart From: time-nuts-boun...@febo.com [time-nuts-boun...@febo.com] on behalf of Gerald Chafee [gcha...@gmail.com] Sent: Friday, 08 November 2013 4:16 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] HP Z3817A Reverse Engineering Are you looking for a Paypal payment for postage? Gerald Chafee On Fri, Nov 8, 2013 at 10:07 AM, ashle...@aol.com wrote: Hi All, We acquired a T-Bolt from an estate , its untested, seal is unbroken, it might be good or might be Drek, but in either event its free to someone for postage from 97113 to the lower 48. It will fit into a USPS Small Rate Box for $6. We could ship it international, but at this point we don't know the cost. Thank You Thank You Kiss-Electronics Ms Ashley Hall 183 N 5th Avenue Cornelius, Oregon 97113 W7DUZ www.kiss-electronics.com -Original Message- From: Ed Palmer ed_pal...@sasktel.net To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Sun, Oct 27, 2013 1:54 pm Subject: Re: [time-nuts] HP Z3817A Reverse Engineering Hi David, Skip Withrow and I were able to figure out the connections and the basic operational features. I've attached a document that describes our findings. I wouldn't mind picking up another E1938 oscillator, but I'm reluctant to buy one that might have mismatched oscillator and circuit board (i.e. the serial numbers don't match). I've asked a couple of vendors if the serial numbers matched, but they won't respond. Does anyone have any experience with a mismatched combination? How's their performance? Ed On 10/27/2013 1:26 PM, David Hooke wrote: Hi Ed, My E1938 also came from a very battered STLN4096A from the same source, and I might also try to get the other boards functional. Could you share the details of the GPS connections, and which GPS receiver you used? Cheers, david I recently purchased a Motorola STLN4096A with the HP E1938A oscillator. I bought it for the oscillator only. Then I got intrigued by the HP Z3817A GPSDO that's included. I've reverse engineered most of it and I've got it running. The 1 PPS is really good ( 1000 measurements, Std. Dev. of 200 ps, min to max range of 1.5 ns) and the HUP is very slowly dropping (currently at 13 us after ~1.5 days) as the oscillator works out the kinks after it's long sleep. It's dropping much slower than my Z3801A did when I first turned it on. There's one input that I haven't been able to figure out. I've got data in and 1 PPS in from the GPS receiver. Everything seems to be working so I'm at a loss what that the other input could be for. There are no clues to it's function because it appears to go into one of the Xilinx chips. Does anyone have any more info on the unit? Has anyone figured out the other input? I have searched the net and the archives. There's very little info or discussion on this unit. Ed ___ 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. ___ 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. ___ 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. ___ 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. ___ 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. ___ 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] Bell Labs ad 1952
I still have one of those 100kHz crystals in a glass tube Octal socket. I do not have the room that has 600 vacuum tubes operating and keeping the room within 2 degrees. That is too large to be used for my outer over where the currently shown inner oven is being kept to 1/100th of a degree. I will stick with a HP 10811 and a FE 5680A And for those people staring at the clock in the window wearing winter coats - get a life, it is just a clock, and not the accurate one - probably synced through the AC line power's 60 HZ!. On Thu, Oct 3, 2013 at 11:08 AM, Don Oconnor eg...@wowway.com wrote: Found this time-nuts related ad from Bell Laboratories 1952. Enjoy http://i1329.photobucket.com/albums/w541/securitydvr2010/BellLabsad1952300dpi_zpsbce7d701.jpg Don O'Connor ___ 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. ___ 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] Bell Labs ad 1952
Is that heat due to all the tubes? ;) Jerry On Thu, Oct 3, 2013 at 5:16 PM, paul swed paulsw...@gmail.com wrote: Gerald it is the clock at the telco company. The folks are not checking the time. They are getting warmed up from the heat and only appearing to be checking the time. Regards Paul WB8TSL On Thu, Oct 3, 2013 at 4:29 PM, Gerald Chafee gcha...@gmail.com wrote: I still have one of those 100kHz crystals in a glass tube Octal socket. I do not have the room that has 600 vacuum tubes operating and keeping the room within 2 degrees. That is too large to be used for my outer over where the currently shown inner oven is being kept to 1/100th of a degree. I will stick with a HP 10811 and a FE 5680A And for those people staring at the clock in the window wearing winter coats - get a life, it is just a clock, and not the accurate one - probably synced through the AC line power's 60 HZ!. On Thu, Oct 3, 2013 at 11:08 AM, Don Oconnor eg...@wowway.com wrote: Found this time-nuts related ad from Bell Laboratories 1952. Enjoy http://i1329.photobucket.com/albums/w541/securitydvr2010/BellLabsad1952300dpi_zpsbce7d701.jpg Don O'Connor ___ 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. ___ 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. ___ 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. ___ 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] Decent GPS Antenna Active/PassiveRecommendation
Hi Dave, Hopefully not too far off topic, just wanted to chime in here. I have known the people at RDR Electronics (I live in NY and am not affiliated with them) for over 15 years. I used to live in the Denver area and got to know the original owners. They used to buy industrial aerospace surplus cheap and turn it around quick. They are like us in that they like to tinker around with equipment (many times much more expensive than most of us could afford). They have respect for us time nuts ;). I have never known them to not stand by something they sold. They do sell direct outside of auctions - just look them up online in the Denver area. They are easy to talk to and nice people. If you are wondering how many items they may have, ask them. They are not trying to hide anything. They do need to turn a profit like any company. I am ready to spend $1000 + on an item soon and I would not flinch at giving it to them. They do answer their emails and will listen to you if you are looking for a special setup for a good price. They occasionally come across a one of a kind oddball item and would sell direct rather than post on an auction. My only concern I have ever heard was from outside the U.S. They have to turn stuff around fast and can't take on the risk of issues with international shipments from what I have heard. Sorry for what sounds like a commercial. I really have no current connection, but wanted to let you know what you could expect. On Sun, Sep 15, 2013 at 10:34 PM, quartz55 quart...@hughes.net wrote: I got the Lucent 26dB antenna with my Nortel and it seems fine, although I have nothing to compare it to. It seems like a fine commercial unit and comes with the protector mount. I don't know what RDR bids are running up to, but at $30 plus $11 shipping, you might as well buy the whole Nortel GPSTM and the antenna for $150 delivered. He doesn't let on how many of either he has. Dave ___ 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. ___ 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] Decent GPS Antenna Active/PassiveRecommendation
Oh - sorry - did not mean it that way. I wants to let you know you can talk to them and they will work with you (and sometimes get a better deal if you write a check and can wait ). Glad to see what you have done - I am just starting back in the precise time work, but I used to work in USAF with precise time with Loran C. Guess that is gone (for now :) ). Jerry On Wed, Sep 18, 2013 at 5:24 PM, quartz55 quart...@hughes.net wrote: Gerald, I wasn't trying to make any derogatory remarks about RGR. I did email him about the Nortel unit I got and he responded quickly with an appropriate answer, so my dealings with them have been fine. I actually bought some other stuff from him after the GPS unit. I'm happy with what I've gotten from them. Dave ___ 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. ___ 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] VECTRON 371Y383 oscillator
Hello Stan, I am in Upstate NY and am heading to for a week's vacation at the Cape in another 10 days. I unfortunately let my ham license expire a while back but was looking at renewing or get a new call ( old call - KA0DRP). I was wondering how at the Cape, is the propagation in the HF bands a lot better as you have the sandy soil that is probably damp which would make for a good ground plane. I would think that a shack on the cape would be ideal for DX. Years ago I was in the Air force and stationed on a listening post near Iraklion, Crete, Greece. The propagation that was unbelievable. I did not have a way to transmit, but the reception was unbelievable. It was like being in a tunnel to stations that were 1000 - 3000 miles away. We could hear a 10 watt (U.S. military) HF transmitter in Korea at 20 meters in the afternoon as if it were 10 miles away. We used to tune into the Citizens Band frequencies and pick up U.S. Stations at various times. I was wondering if the close proximity to the ocean has shown to be a boon for long distance communications for you? Thanks, Jerry On Mon, Aug 12, 2013 at 9:10 AM, stan, W1LE stanw...@verizon.net wrote: Make a phone call to the NH plant. Ask a product specialist for details. May get shuffled to the PA plant. Persisit. Stan, W1LE Cape Cod On 12-Aug-13 8:53 AM, Collins, Graham wrote: Good day all, I recently purchased a VECTRON 10Mhz oscillator like the one in the this eBay listing 38133695 Very typical of some of VECTRON older offerings but I have been unable to find much if any information on this oscillator. I haven't yet emailed VECTRON but thought I might first ask the learned members of this list if anyone has or knows any details before I plug it in to see what I get. The oscillator is marked 371Y383 which a search of VECTRONS returns nothing but comparing to pictures and drawings of some older VECTRON units seems to indicate it might be or is very similar to their old CO-351 product. Cheers, Graham ve3gtc __**_ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/** mailman/listinfo/time-nutshttps://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. __**_ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/** mailman/listinfo/time-nutshttps://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ 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.
