Re: [time-nuts] FCC Chair Talks Spectrum, Gets GPS Letter
I'm sorry, but Mr. Javad is on crack. A simple WAAS upgrade on a GENERAL AVIATION aircraft already costs about $8000 fully installed. This includes an antenna upgrade that I remember to be about $3000 installed for the antenna itself. $500 per plane to fix the issue? Yeah right. In what world does he live in? bye, Said In a message dated 3/6/2012 16:38:28 Pacific Standard Time, j...@cornell.edu writes: The cost of such retrofits is under $500 per aircraft. It would cost less than $20M to fix any existing issues within the industry and only take a few months to complete. Please also note that all existing GPS receivers are semi-obsolete and will soon need to be replaced anyway (with or without LightSquared) because current systems do not track the modernized signals of GPS, GLONASS and Galileo. ___ 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] FCC Chair Talks Spectrum, Gets GPS Letter
FCC Chair Talks Spectrum, Gets GPS Letter Chairman Julius Genachowski of the Federal Communications Commission spoke to a partisan crowd on Monday, February 27 at the Mobile World Congress in Barcelona. While he did not specifically mention the LightSquared controversy or the FCC’s role in it, he made a remark that could be interpreted as expressing regret over the episode. Meanwhile, GNSS manufacturer Javad Ashjaee wrote Genachowski a letter, in the form of an FCC docket comment, disagreeing with the decision to step back from a Lightsquared waiver and decrying the GPS industry. Genachowski's Barcelona speech came two weeks after the FCC withdrew a conditional waver for LightSquared’s broadband plans to broadcast a powerful terrestrial signal in a band designated for satellites, because test signals interfered with GPS reception. While avoiding the topic by name, he stated that “We recognize that this is an incredibly fast-moving space, that no one has a crystal ball to predict the future, and that humility is a value to be honored in policymaking.” This remark followed an avowal that “our mission is to unleash the potential of communications technology. We believe in the power of dynamic free markets to drive these benefits, and that government has an important but limited role to play in enabling innovation and investment in communications technologies and services, promoting competition, and empowering consumers.” Sounding ominous notes for the future — at least as far as GPS is concerned — Genachowski patted the FCC’s back for opening television white-space spectrum to wireless use, and voiced appreciation for the agency’s newly granted authority to conduct voluntary auctions of broadcast spectrum, approved by Congress and signed into law by President Obama. “The new incentive auction law is concrete recognition by U.S. policymakers of the need to free up more spectrum for mobile broadband, and the need for ongoing innovation in spectrum policy.” Spectrum, it has become abundantly clear if it wasn’t already, is the wireless industry's lifeblood; each day brings a handful of forward-looking announcements of new products and services that will funnel massive amounts of data through limited frequency bands, at promised speeds that the current set-up will not bear. "Inefficiently used spectrum often isn’t the fault of existing licensees but instead traces back to government allocation decisions that predated auctions of spectrum for flexible use," Genachowski stated. Meanwhile, JAVAD GNSS founder and CEO Javad Ashjaee published a letter he had written to Genachowski, on the FCC’s IB Docket No. 11-109, opened for public comment on the LightSquared situation. “I find your recent decision regarding LightSquared's network deployment to be unfair and harmful to not only the U.S. economy, but to the future of innovation,” Ashjaee wrote. “The only real issue is retrofitting faulty GPS units.” “Please do not allow $14B of private investment in the nation's broadband infrastructure to disappear,” he continued, “especially when it will cost less than $100M to solve any problems associated with existing units. Your decision could render years of innovation and investment obsolete. “GPS manufacturers should not be able to get away with faulty designs and the U.S. government should do not promote, support, and encourage design of flawed units. Even now, when the GPS industry is aware of a simple solution, they keep manufacturing and selling defective units to compound the problem. “Please do not allow technology to lose to politics. It will be a national disaster if we lose 4G competitiveness and discourage investment in this country. If FCC loses control of the precocious spectrum in this case, who knows what will happen in the future?” Javad's Comment to FCC The Honorable Julius Genachowski Chairman, Federal Communications Commission 445 12th Street, S.W. Washington, D.C. 20554 Ex Parte Communication. IB Docket No. 11-109 February 27, 2012 Dear Chairman Genachowski: For the reasons outlined below I find your recent decision regarding LightSquared's network deployment to be unfair and harmful to not only the U.S. economy, but to the future of innovation. It has been proven time and again that GPS and LightSquared can coexist. I demonstrated this to the PNT earlier this year, and results from independent labs confirmed my results. Even more telling, the recently published recommendations from the NTIA to the FCC do not dispute this fact. The only real issue is retrofitting faulty GPS units. Let's take into consideration the aviation industry, which is highly regulated and extremely safety conscious. You can subpoena their retrofit histories and see when they found a problem in any parts of their aircrafts and how long it took them to fix the problems. Considering that changing a GPS antenna is easy task compared to other retrofits that they conduc
Re: [time-nuts] GPS World: short 'blurb' on the LF testing
Aha - I did hear Cape May Fire up on 100 Khz - they are using the old loran engineering site at the south end of Wildwood Crest NJ - 635 foot tower. 73, Bill Riches, WA2DVU Cape May, NJ http://www.gpsworld.com/wireless/timing/news/ursanav-testing-wide-area-timin g-alternative-12713 ___ 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] GPS World: short 'blurb' on the LF testing
Hi As mentioned in the presentation - there are years and years of papers making the same points. Tough to see hoe they are basing a new system on that. There's got to be more to the story. Bob On Mar 6, 2012, at 5:00 PM, Brooke Clarke wrote: > Hi: > > Here's a talk by the CEO of http://www.ursanav.com/ given at ION. > > http://www.ursanav.com/sites/default/files/pdfs/CSchue_ION_ITM_Plenary_Presentation_30JAN2012.pdf > > Have Fun, > > Brooke Clarke > http://www.PRC68.com > http://www.end2partygovernment.com/Brooke4Congress.html > > > Pete Lancashire wrote: >> http://www.gpsworld.com/wireless/timing/news/ursanav-testing-wide-area-timing-alternative-12713 >> >> ___ >> 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] GPS World: short 'blurb' on the LF testing
Hi: Here's a talk by the CEO of http://www.ursanav.com/ given at ION. http://www.ursanav.com/sites/default/files/pdfs/CSchue_ION_ITM_Plenary_Presentation_30JAN2012.pdf Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/Brooke4Congress.html Pete Lancashire wrote: http://www.gpsworld.com/wireless/timing/news/ursanav-testing-wide-area-timing-alternative-12713 ___ 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] GPS World: short 'blurb' on the LF testing
http://www.gpsworld.com/wireless/timing/news/ursanav-testing-wide-area-timing-alternative-12713 ___ 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] FE5680A 1 PPS and FAQ
> From: Sam Reaves > I have a LED with a 330 ohm current limiting resistor on pin 3 (the 74ACT240 > can sink up to 24mA and I am well below that) for the lock indicator. All of > my units lock and produce 10MHz although the 1pps never switches. Pin 3 is not driven by the 74ACT240. It is an input to the '240, and your LED is pulling it up above the logic threshold see below. http://www.ko4bb.com/dokuwiki/doku.php?id=precision_timing:fe5680a_faq#how_can_i_get_a_1_pps_output How can I get a 1 PPS output? A 1 microsecond wide, logic level 1 PPS signal appears on the DB-9 pin 6 whenever the unit is locked (hard to see on an analog scope, should be easy on a digital scope). The PPS signal does not appear until the unit is locked (pin 3 goes low). The current sink capability of pin 3 is weak, and if it is driving an LED + 1K resistor from +5V, that will leave pin 3 at 2.3V when locked, not enough to enable the 1 PPS signal. Advice: buffer the pin 3 lock signal before driving an indicator light. All being well, pin 1 of the 74ACT240 will drop low in step with the lock condition and the PPS signal will appear at the DB9. Alternatively, it is easy to get a 1 pps signal from the 10 MHz output with a single picDIV chip (possibly with a 0.1uF cap and two 10k resistors to bias the sine wave to 1/2 the PIC power supply voltage). picDIV parts (based on PIC12F675 cpu) from Tom Van Baak take a 10 MHz clock input and generate a 1 PPS output. See also: http://www.leapsecond.com/pic/picdiv.htm Thanks to Bob Grant for describing the pin 3 LED pin 6 PPS problem. ___ 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 in the US
On 3/5/12 9:26 AM, Chris Albertson wrote: The best and by far lowest cost solution is to pay TV stations and maybe AM broadcast stations to add a timing pulse a few times per second. I suppose you could do this by the FM subcarrier broadcast approach, too.. just like they used to distribute stock quotes, sports scores, and GPS differential corrections. Or, you could use pager transmissions. ___ 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 in the US
Hy Chris, Here you can find something usefull. http://www.bipm.org/en/si/si_brochure/ in french: membres.multimania.fr/f1rhr/jms/rxetalon.pdf www.datelec.fr/signaux_horaires/p0.htm regards F4GBC -Message d'origine- From: Chris Albertson Sent: Monday, March 05, 2012 8:27 PM To: j...@quikus.com ; Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Loran in the US On Mon, Mar 5, 2012 at 10:09 AM, J. Forster wrote: Already been done, and patented, without adding pulses to existing AM stations. Would you happen you know the patent number or something else I could use to do a search on it? I know some one who is working on this. I'd like to be able to point out what's already been done and patented. The best and by far lowest cost solution is to pay TV stations and maybe AM broadcast stations to add a timing pulse a few times per Chris Albertson Redondo Beach, California ___ 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] FWD: More LightSpeed/Dish stuff from usenet:comp.dcom.telecom
--- Forwarded Messages Subject: DoD accused of subverting LightSquared plan in 2010 [telecom] Date: Mon, 05 Mar 2012 18:38:39 -0500 On LightSquared, Defense Department official urged synch up with GPS lobby By ELIZA KRIGMAN | 3/2/12 9:33 AM EST A Department of Defense official urged his colleagues in 2010 to "synch up" with the GPS industry in order to defeat LightSquared's plans to build the nation's first wholesale broadband network, according to an email obtained by POLITICO. The email came as the Global Positioning System Industry Council was preparing to brief NTIA -- the White House technical advisers -- on LightSquared's proposal. "We need to synch up with them prior to them briefing NTIA to make sure we are in lock step," the DoD official wrote to colleagues in the Dec. 29, 2010, email. He added: "Especially since they are our allies." Read more: http://www.politico.com/news/stories/0312/73543.html#ixzz1oHwh3BWN - -or- http://goo.gl/UofO9 - -- Bill Horne --- Message 2 Newsgroups: comp.dcom.telecom Subject: LightSquared will make for a better connection [telecom] Date: Mon, 05 Mar 2012 18:55:41 -0500 from Thehill.com, which offers blogs from elected officials: LightSquared will make for a better connection By Maine State Rep. Diane Russell, (D-Portland) - 03/05/12 03:35 PM ET As a progressive state legislator, it's not every day that I find myself championing a conservative infrastructure investment model like the LightSquared project. However, my hometown was the last in the nation to use the crank phone (no...not the rotary dial). I may still get carded at the store, but I remember using the system. More than most, I recognize the economic consequences of being on the wrong side of the digital tracks. While the federal government has been wasting trillions of dollars building nations abroad, our own infrastructure here at home has taken a hit, not the least of which is our broadband investment. It's great that urban parts of the country have broadband Internet and reliable cell phone service; the rest of us do not and that hurts the entire American economy. Regardless of whether the investment is public or private, it needs to be made. LightSquared is investing billions in private money to deploy the most robust, reliable 4G mobile broadband system in the country. http://thehill.com/blogs/congress-blog/technology/214193-lightsquared-will-mak e-for-a-better-connection- - -or- http://goo.gl/IUFKa - -- Bill Horne --- Message 3 Subject: FCC avoiding LightSquared mistakes with Dish [telecom] Date: Mon, 05 Mar 2012 18:43:10 -0500 from GigaOM.com: FCC avoiding LightSquared mistakes with Dish By Kevin Fitchard Mar. 5, 2012, 8:22am PT The Federal Communications Commission on Friday denied Dish Network's request to build a terrestrial LTE network over its satellite airwaves, but it didn't kill the satellite broadcaster's proposal outright. Instead the commission is kicking off a lengthy rule-making process that would eventually govern how satellite spectrum could be repurposed for ground-based networks. http://gigaom.com/broadband/fcc-avoiding-lightsquared-mistakes-with-dish/ - -or- http://goo.gl/Z3X0U - -- Bill Horne --- End of Forwarded Messages -- These are my opinions, not necessarily my employer's. I hate spam. ___ 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.
