Re: [time-nuts] WWVB and Free Democracies Survival
On 07/16/2012 03:28 AM, Tom Miller wrote: I believe they called that system a bell ringer. It let the sub know that it had to come close to the surface to receive new information. I'll need to google around to find more about it. We had a ELF transmitter (NSS) in Annapolis that transmitted about 1 MW at about 24 kHz. Anyone ever seen 3 inch diameter litz wire? We had the ELF transmitter at Grimeton (SAQ) transmitting about 200 kHz at 17.2 kHz using the Alexanderson alternator. I think the litz wire was 4 inch in diameter as I recall it. It was cutting edge in 1924. It was initially used for telegraph traffic to the US, and the Long Island main station. It was really never keyed by hand, it was keyed remote with optical keyer and messages taped back-to-back. After its main service for telegraph messages was no longer motivate it, it got used as the bell ringer for our subs and kept operational and maintained up till about 1996 and it has since been taken care off so it can be used for museeum. It's now on UNESCOs world-heritage list. Links: http://www.grimetonradio.se/ http://www.radiostationengrimeton.se/ http://en.wikipedia.org/wiki/Grimeton_VLF_transmitter http://www.grimeton.org/ http://www.alexander.n.se/ Do visit Grimeton if you are in south of Sweden. You can also tune in to it's transmissions and report back. The remaining submarine radiostation in Ruda could actually be turn into a time-code transmitter. It's a matter of financing it and giving the order. Cheers, Magnus ___ 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] Phase modulation detection/NIST plan
More importantly, how many things don't really need a clock to begin with! :) Every piece of equipment in our house shows a different time. I wouldn't complain if they all automatically adjusted. My current solution is to just stop looking at the clocks, and it's amazing how much easier life gets if you just stop worrying about things! :) Dan On 7/14/2012 10:50 AM, time-nuts-requ...@febo.com wrote: Hi I think the answer to how many places would it be used is to simply count the number of things that have the wrong time on them each time the power burps. There are maybe a dozen gizmos like that in this room (yes I'm in the kitchen). Bob ___ 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] Phase modulation detection/NIST plan
More importantly, how many things don't really need a clock to begin with! :) ABSOLUTELY! If you turn on the coffee maker when you walk int the kitchen, it'll be done by the time you fix breakfast. And so on... A clock on almost everything is totally superfluous, IMO. Things that do need to be externally synchronized, like video recorder, can bette4r use the program time. Every piece of equipment in our house shows a different time. I wouldn't complain if they all automatically adjusted. My current solution is to just stop looking at the clocks, and it's amazing how much easier life gets if you just stop worrying about things! :) Finally, a voice of common sense! Dan -John = On 7/14/2012 10:50 AM, time-nuts-requ...@febo.com wrote: Hi I think the answer to how many places would it be used is to simply count the number of things that have the wrong time on them each time the power burps. There are maybe a dozen gizmos like that in this room (yes I'm in the kitchen). Bob ___ 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] WWVB and Free Democracies Survival
I believe ELF is more like 100 Hz, which can be received much deeper, so the sub can stay at the bottom. 24kHz is VLF. Didier KO4BB Magnus Danielson mag...@rubidium.dyndns.org wrote: On 07/16/2012 03:28 AM, Tom Miller wrote: I believe they called that system a bell ringer. It let the sub know that it had to come close to the surface to receive new information. I'll need to google around to find more about it. We had a ELF transmitter (NSS) in Annapolis that transmitted about 1 MW at about 24 kHz. Anyone ever seen 3 inch diameter litz wire? We had the ELF transmitter at Grimeton (SAQ) transmitting about 200 kHz at 17.2 kHz using the Alexanderson alternator. I think the litz wire was 4 inch in diameter as I recall it. It was cutting edge in 1924. It was initially used for telegraph traffic to the US, and the Long Island main station. It was really never keyed by hand, it was keyed remote with optical keyer and messages taped back-to-back. After its main service for telegraph messages was no longer motivate it, it got used as the bell ringer for our subs and kept operational and maintained up till about 1996 and it has since been taken care off so it can be used for museeum. It's now on UNESCOs world-heritage list. Links: http://www.grimetonradio.se/ http://www.radiostationengrimeton.se/ http://en.wikipedia.org/wiki/Grimeton_VLF_transmitter http://www.grimeton.org/ http://www.alexander.n.se/ Do visit Grimeton if you are in south of Sweden. You can also tune in to it's transmissions and report back. The remaining submarine radiostation in Ruda could actually be turn into a time-code transmitter. It's a matter of financing it and giving the order. Cheers, Magnus ___ 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. -- Sent from my Motorola Droid Razr phone with K-9 Mail. Please excuse my brevity. ___ 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] WWVB and Free Democracies Survival
Hi Didier: Yes, here's a table with some sub com frequencies: http://www.prc68.com/I/FA.shtml#ELF Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html Didier Juges wrote: I believe ELF is more like 100 Hz, which can be received much deeper, so the sub can stay at the bottom. 24kHz is VLF. Didier KO4BB Magnus Danielson mag...@rubidium.dyndns.org wrote: On 07/16/2012 03:28 AM, Tom Miller wrote: I believe they called that system a bell ringer. It let the sub know that it had to come close to the surface to receive new information. I'll need to google around to find more about it. We had a ELF transmitter (NSS) in Annapolis that transmitted about 1 MW at about 24 kHz. Anyone ever seen 3 inch diameter litz wire? We had the ELF transmitter at Grimeton (SAQ) transmitting about 200 kHz at 17.2 kHz using the Alexanderson alternator. I think the litz wire was 4 inch in diameter as I recall it. It was cutting edge in 1924. It was initially used for telegraph traffic to the US, and the Long Island main station. It was really never keyed by hand, it was keyed remote with optical keyer and messages taped back-to-back. After its main service for telegraph messages was no longer motivate it, it got used as the bell ringer for our subs and kept operational and maintained up till about 1996 and it has since been taken care off so it can be used for museeum. It's now on UNESCOs world-heritage list. Links: http://www.grimetonradio.se/ http://www.radiostationengrimeton.se/ http://en.wikipedia.org/wiki/Grimeton_VLF_transmitter http://www.grimeton.org/ http://www.alexander.n.se/ Do visit Grimeton if you are in south of Sweden. You can also tune in to it's transmissions and report back. The remaining submarine radiostation in Ruda could actually be turn into a time-code transmitter. It's a matter of financing it and giving the order. Cheers, Magnus ___ 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] WWVB and Free Democracies Survival
Hi Didier, Yes, you are correct. My memory from 10 + years ago is slowly fading. The ELF transmitters were used to get the subs up to near surface so they could receive messages from the VLF sites. NSS was a VLF site. Thanks for the reality check :) Tom - Original Message - From: Didier Juges shali...@gmail.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Monday, July 16, 2012 3:59 PM Subject: Re: [time-nuts] WWVB and Free Democracies Survival I believe ELF is more like 100 Hz, which can be received much deeper, so the sub can stay at the bottom. 24kHz is VLF. Didier KO4BB Magnus Danielson mag...@rubidium.dyndns.org wrote: On 07/16/2012 03:28 AM, Tom Miller wrote: I believe they called that system a bell ringer. It let the sub know that it had to come close to the surface to receive new information. I'll need to google around to find more about it. We had a ELF transmitter (NSS) in Annapolis that transmitted about 1 MW at about 24 kHz. Anyone ever seen 3 inch diameter litz wire? We had the ELF transmitter at Grimeton (SAQ) transmitting about 200 kHz at 17.2 kHz using the Alexanderson alternator. I think the litz wire was 4 inch in diameter as I recall it. It was cutting edge in 1924. It was initially used for telegraph traffic to the US, and the Long Island main station. It was really never keyed by hand, it was keyed remote with optical keyer and messages taped back-to-back. After its main service for telegraph messages was no longer motivate it, it got used as the bell ringer for our subs and kept operational and maintained up till about 1996 and it has since been taken care off so it can be used for museeum. It's now on UNESCOs world-heritage list. Links: http://www.grimetonradio.se/ http://www.radiostationengrimeton.se/ http://en.wikipedia.org/wiki/Grimeton_VLF_transmitter http://www.grimeton.org/ http://www.alexander.n.se/ Do visit Grimeton if you are in south of Sweden. You can also tune in to it's transmissions and report back. The remaining submarine radiostation in Ruda could actually be turn into a time-code transmitter. It's a matter of financing it and giving the order. Cheers, Magnus ___ 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. -- Sent from my Motorola Droid Razr phone with K-9 Mail. Please excuse my brevity. ___ 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] WWVB and Free Democracies Survival
Cool. Thanks Brook. I was fortunate to get several tours at NSS before they tore it down. I (and several others) were also able, through one of our senators, to have three of the 600 foot self supporting towers saved and reused for public safety. These three legged towers have a leg spacing of 150 feet. Best regards, Tom - Original Message - From: Brooke Clarke bro...@pacific.net To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Monday, July 16, 2012 4:03 PM Subject: Re: [time-nuts] WWVB and Free Democracies Survival Hi Didier: Yes, here's a table with some sub com frequencies: http://www.prc68.com/I/FA.shtml#ELF Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html Didier Juges wrote: I believe ELF is more like 100 Hz, which can be received much deeper, so the sub can stay at the bottom. 24kHz is VLF. Didier KO4BB Magnus Danielson mag...@rubidium.dyndns.org wrote: On 07/16/2012 03:28 AM, Tom Miller wrote: I believe they called that system a bell ringer. It let the sub know that it had to come close to the surface to receive new information. I'll need to google around to find more about it. We had a ELF transmitter (NSS) in Annapolis that transmitted about 1 MW at about 24 kHz. Anyone ever seen 3 inch diameter litz wire? We had the ELF transmitter at Grimeton (SAQ) transmitting about 200 kHz at 17.2 kHz using the Alexanderson alternator. I think the litz wire was 4 inch in diameter as I recall it. It was cutting edge in 1924. It was initially used for telegraph traffic to the US, and the Long Island main station. It was really never keyed by hand, it was keyed remote with optical keyer and messages taped back-to-back. After its main service for telegraph messages was no longer motivate it, it got used as the bell ringer for our subs and kept operational and maintained up till about 1996 and it has since been taken care off so it can be used for museeum. It's now on UNESCOs world-heritage list. Links: http://www.grimetonradio.se/ http://www.radiostationengrimeton.se/ http://en.wikipedia.org/wiki/Grimeton_VLF_transmitter http://www.grimeton.org/ http://www.alexander.n.se/ Do visit Grimeton if you are in south of Sweden. You can also tune in to it's transmissions and report back. The remaining submarine radiostation in Ruda could actually be turn into a time-code transmitter. It's a matter of financing it and giving the order. Cheers, Magnus ___ 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] Austron 1250A
I have a virgin 5 MHz secondary frequency standard to sell. Before I go the eBay route, I thought I would post it here. Contact me off-list if interested. -Doug Ronald ___ 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] XL-DC Antenna Requirements
All, Though somewhat outmoded, looking forward to starting my own time shop with two XL-DC controllers that I have been lucky enough to pick up recently. My question: Do I really need to invest in the likes of the HP 58532A antennae, or will my surplus Trimble magnetic antennae -- magnetically attached to a random ferrous backplane -- do? I guess what I am really asking: what are the relevant antenna design requirements here, and does the advent of as 32-satellite-constellation have any effect upon the antenna choice (i.e. design downgrade) for the TrueTime XL-DC? -CH Chris Hoffman cq.k...@gmail.com http://ar.ctur.us -CH Chris Hoffman cq.k...@gmail.com http://ar.ctur.us ___ 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] Phase modulation detection/NIST plan
Confucius say: Man with two clocks never know what time it is. Al Every piece of equipment in our house shows a different time. I wouldn't complain if they all automatically adjusted. My current solution is to just stop looking at the clocks, and it's amazing how much easier life gets if you just stop worrying about things! :) ___ 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] Phase modulation detection/NIST plan
HI A died in the wool Time Nut who doesn't care what time it is - what's the world coming to Bob On Jul 16, 2012, at 9:34 AM, J. Forster wrote: More importantly, how many things don't really need a clock to begin with! :) ABSOLUTELY! If you turn on the coffee maker when you walk int the kitchen, it'll be done by the time you fix breakfast. And so on... A clock on almost everything is totally superfluous, IMO. Things that do need to be externally synchronized, like video recorder, can bette4r use the program time. Every piece of equipment in our house shows a different time. I wouldn't complain if they all automatically adjusted. My current solution is to just stop looking at the clocks, and it's amazing how much easier life gets if you just stop worrying about things! :) Finally, a voice of common sense! Dan -John = On 7/14/2012 10:50 AM, time-nuts-requ...@febo.com wrote: Hi I think the answer to how many places would it be used is to simply count the number of things that have the wrong time on them each time the power burps. There are maybe a dozen gizmos like that in this room (yes I'm in the kitchen). Bob ___ 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] Phase modulation detection/NIST plan
Just because I like Brie, doesn't mean I like French Bread or wine. I am interested in Standards of Time Interval for engineering purposes. I havn't looked at my oven clock in probably 25 years. I presume it's accurate twice a day or somewhere on earth, but I couldn't care less. IMO, adding a clock to an oven, dishwasher, refrigerator, toaster oven, coffee maker, etc. is simply another useless feature. Bling to catch the eye of the clueless shopper. I'd much rather the maker spent the $0.50 a digital clock costs on meaningful quality improvements in those features that actually matter. YMMV, -John HI A died in the wool Time Nut who doesn't care what time it is - what's the world coming to Bob On Jul 16, 2012, at 9:34 AM, J. Forster wrote: More importantly, how many things don't really need a clock to begin with! :) ABSOLUTELY! If you turn on the coffee maker when you walk int the kitchen, it'll be done by the time you fix breakfast. And so on... A clock on almost everything is totally superfluous, IMO. Things that do need to be externally synchronized, like video recorder, can bette4r use the program time. Every piece of equipment in our house shows a different time. I wouldn't complain if they all automatically adjusted. My current solution is to just stop looking at the clocks, and it's amazing how much easier life gets if you just stop worrying about things! :) Finally, a voice of common sense! Dan -John = On 7/14/2012 10:50 AM, time-nuts-requ...@febo.com wrote: Hi I think the answer to how many places would it be used is to simply count the number of things that have the wrong time on them each time the power burps. There are maybe a dozen gizmos like that in this room (yes I'm in the kitchen). Bob ___ 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] Phase modulation detection/NIST plan.. PS
PS: 30 odd years ago, I bought a toaster for about $20 that worked fine and made good toast until recently. It only failed because a piece of bread got jammed and was impossible to clean. So, I bought a new toaster, for about the same price. It didn't last 30 weeks. In my view, this is NOT progress. I detest having to resolve supposedly solved problems. YMMV, -John Just because I like Brie, doesn't mean I like French Bread or wine. I am interested in Standards of Time Interval for engineering purposes. I havn't looked at my oven clock in probably 25 years. I presume it's accurate twice a day or somewhere on earth, but I couldn't care less. IMO, adding a clock to an oven, dishwasher, refrigerator, toaster oven, coffee maker, etc. is simply another useless feature. Bling to catch the eye of the clueless shopper. I'd much rather the maker spent the $0.50 a digital clock costs on meaningful quality improvements in those features that actually matter. YMMV, -John HI A died in the wool Time Nut who doesn't care what time it is - what's the world coming to Bob On Jul 16, 2012, at 9:34 AM, J. Forster wrote: More importantly, how many things don't really need a clock to begin with! :) ABSOLUTELY! If you turn on the coffee maker when you walk int the kitchen, it'll be done by the time you fix breakfast. And so on... A clock on almost everything is totally superfluous, IMO. Things that do need to be externally synchronized, like video recorder, can bette4r use the program time. Every piece of equipment in our house shows a different time. I wouldn't complain if they all automatically adjusted. My current solution is to just stop looking at the clocks, and it's amazing how much easier life gets if you just stop worrying about things! :) Finally, a voice of common sense! Dan -John = On 7/14/2012 10:50 AM, time-nuts-requ...@febo.com wrote: Hi I think the answer to how many places would it be used is to simply count the number of things that have the wrong time on them each time the power burps. There are maybe a dozen gizmos like that in this room (yes I'm in the kitchen). Bob ___ 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] Phase modulation detection/NIST plan.. PS
I just hope it didn't died on the last leapsecond...? On 16/07/2012 22:50, J. Forster wrote: PS: 30 odd years ago, I bought a toaster for about $20 that worked fine and made good toast until recently. It only failed because a piece of bread got jammed and was impossible to clean. So, I bought a new toaster, for about the same price. It didn't last 30 weeks. In my view, this is NOT progress. I detest having to resolve supposedly solved problems. YMMV, -John Just because I like Brie, doesn't mean I like French Bread or wine. I am interested in Standards of Time Interval for engineering purposes. I havn't looked at my oven clock in probably 25 years. I presume it's accurate twice a day or somewhere on earth, but I couldn't care less. IMO, adding a clock to an oven, dishwasher, refrigerator, toaster oven, coffee maker, etc. is simply another useless feature. Bling to catch the eye of the clueless shopper. I'd much rather the maker spent the $0.50 a digital clock costs on meaningful quality improvements in those features that actually matter. YMMV, -John HI A died in the wool Time Nut who doesn't care what time it is - what's the world coming to Bob On Jul 16, 2012, at 9:34 AM, J. Forster wrote: More importantly, how many things don't really need a clock to begin with! :) ABSOLUTELY! If you turn on the coffee maker when you walk int the kitchen, it'll be done by the time you fix breakfast. And so on... A clock on almost everything is totally superfluous, IMO. Things that do need to be externally synchronized, like video recorder, can bette4r use the program time. Every piece of equipment in our house shows a different time. I wouldn't complain if they all automatically adjusted. My current solution is to just stop looking at the clocks, and it's amazing how much easier life gets if you just stop worrying about things! :) Finally, a voice of common sense! Dan -John = On 7/14/2012 10:50 AM, time-nuts-requ...@febo.com wrote: Hi I think the answer to how many places would it be used is to simply count the number of things that have the wrong time on them each time the power burps. There are maybe a dozen gizmos like that in this room (yes I'm in the kitchen). Bob ___ 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. -- Jean-Louis Oneto OCA GeoAzur - Avenue Nicolas Copernic 06130 Grasse - France e-mail: jean-louis.on...@obs-azur.fr ___ 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] XL-DC Antenna Requirements
Hi Chris; There were a number of XL-DC produced with 12vdc antenna power and should be marked near the connector. There are also some marked Down converter required. Other then then those the 58532A is a great choice andf sold under a number of names such as VIC-100, the Lucent antennas are also nice. The lucent are available in three gains 20, 26, 40 dB version. Most are the 26dB version and are a great product. Placement can be important, and although you could use indoors it will perform best as low as possible with a full view of the sky. (Low to avoid terrestrial interference). Thomas Knox Date: Tue, 17 Jul 2012 00:50:02 +0200 From: azelio.bori...@screen.it To: time-nuts@febo.com Subject: Re: [time-nuts] XL-DC Antenna Requirements The XL-DC is a 6 channels receiver, so no other benefit other than a greater probability to see constantly 6 satellites is gained from 24 to 32 satellites constellation. On Mon, Jul 16, 2012 at 11:59 PM, Chris Hoffman cq.k...@gmail.com wrote: All, Though somewhat outmoded, looking forward to starting my own time shop with two XL-DC controllers that I have been lucky enough to pick up recently. My question: Do I really need to invest in the likes of the HP 58532A antennae, or will my surplus Trimble magnetic antennae -- magnetically attached to a random ferrous backplane -- do? I guess what I am really asking: what are the relevant antenna design requirements here, and does the advent of as 32-satellite-constellation have any effect upon the antenna choice (i.e. design downgrade) for the TrueTime XL-DC? -CH Chris Hoffman cq.k...@gmail.com http://ar.ctur.us -CH Chris Hoffman cq.k...@gmail.com http://ar.ctur.us ___ 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] XL-DC Antenna Requirements
Chris-- The 58532A is somewhat higher gain (30dBi or better) than most mag-mount antennas (26dBi typ IIRC). The pointy nature of the 58532A also serves as an avian deterrent, reducing the accumulation of attenuating deposits... Running two receivers, I would highly recommend a real GPS distribution amp such as the 58535A. Such a beast will let you run both receivers from one antenna, while providing isolation between the receivers. I just happen to have one handy, having recently pulled it out of service and replaced it with a 4-port model to better support my time-nuttiness. Contact me off list if you would be interested. 73 Bob k6...@arrl.net On Jul 16, 2012, at 16:01, time-nuts-requ...@febo.com wrote: Message: 1 Date: Mon, 16 Jul 2012 14:59:52 -0700 From: Chris Hoffman cq.k...@gmail.com To: time-nuts@febo.com Subject: [time-nuts] XL-DC Antenna Requirements Message-ID: 0208b173-9f7b-49b9-ae83-ee231ebba...@gmail.com Content-Type: text/plain; charset=us-ascii All, Though somewhat outmoded, looking forward to starting my own time shop with two XL-DC controllers that I have been lucky enough to pick up recently. My question: Do I really need to invest in the likes of the HP 58532A antennae, or will my surplus Trimble magnetic antennae -- magnetically attached to a random ferrous backplane -- do? I guess what I am really asking: what are the relevant antenna design requirements here, and does the advent of as 32-satellite-constellation have any effect upon the antenna choice (i.e. design downgrade) for the TrueTime XL-DC? -CH Chris Hoffman cq.k...@gmail.com http://ar.ctur.us ___ 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.
