Re: [time-nuts] Possibly OT: Frequency Divider boards for sale

[David C. Partridge]

The documentation in 

 

has just been updated (again) with a new section on test results and choice of 
power supply



Regards,
David Partridge


-Original Message-
From: David C. Partridge [mailto:david.partri...@perdrix.co.uk] 
Sent: 02 February 2011 17:16
To: 'teksco...@yahoogroups.com'; 'tekscop...@yahoogroups.com'; 
'hp_agilent_equipm...@yahoogroups.com'; 'testequiptra...@yahoogroups.com'; 
'Discussion of precise time and frequency measurement'
Subject: RE: Possibly OT: Frequency Divider boards for sale

The documentation in 

 

has just been updated.

Regards,
David Partridge


-Original Message-
From: David C. Partridge [mailto:david.partri...@perdrix.co.uk]
Sent: 02 February 2011 14:08
To: 'teksco...@yahoogroups.com'; 'tekscop...@yahoogroups.com'; 
'hp_agilent_equipm...@yahoogroups.com'; 'testequiptra...@yahoogroups.com'; 
'Discussion of precise time and frequency measurement'
Subject: Possibly OT: Frequency Divider boards for sale

I have just shipped out a large batch of the updated version of my frequency 
divider boards.

I have about 20 complete boards (with all components fitted except RF 
connectors) available for sale.

The cost for these is GBP70 each including "Signed For" delivery to anywhere on 
the planet (GBP65 for UK customers).

I also have a similar number of bare 4-layer printed circuit boards available.

The cost for these is GBP20 each including postage ("Signed For" is GBP5 extra).

Details here:

 and



PS I really will get round to doing something with the website ...

Regards,
David Partridge



___
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] 10MHz to 80MHz frequency multiplier suggestions

[Paramithiotti, Luciano Paolo S]

 An MSA08 saturated with 10MHz input give a comb with +2.5dBM @80Mhz(see 
screenshot). You have only to filter this frequency to clean the output 
spectrum.
Regards, Luciano

Luciano P. S. Paramithiotti
IZ5JHJ

___
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.


msa08 (1).plt
Description: msa08 (1).plt
___
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] 10MHz to 80MHz frequency multiplier suggestions

[Bob Camp]

Hi

I have not done this with the specific chip you are using, so I may be off
base. 

With similar chips from the same people, I have had really terrible
increases in phase noise when running them saturated. I'd be careful about
using them as multipliers if noise is a concern.

Discrete transistors, do indeed do a pretty good job when run as you
describe. I have not seen the same sort of issues with them. 

Bob

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Paramithiotti, Luciano Paolo S
Sent: Thursday, February 03, 2011 10:39 AM
To: rich...@karlquist.com; Discussion of precisetime and frequency
measurement
Subject: Re: [time-nuts] 10MHz to 80MHz frequency multiplier suggestions

 An MSA08 saturated with 10MHz input give a comb with +2.5dBM @80Mhz(see
screenshot). You have only to filter this frequency to clean the output
spectrum.
Regards, Luciano

Luciano P. S. Paramithiotti
IZ5JHJ

___
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] From GPS World - Lightsquared has been given the goahead

[Robert Atkinson]

Hi,
First I'm in the UK so this does not directly affect me. I do have some 
slightly independent comments.
Firstly the Garmin tests seemed very reasonable and erred to favor 
LightSquared. They were free field in an anecohic chamber. There was an L1 
notch filter in the output of the LightSquared simulator. I'd guess the 
Aviation GPS was worse because of A and older design and B It will only give 
valid outputs if it is sure the signal is OK. 
On the politcal side, LightSquared are supposed to be supplying nationwide 
satellite service. The ground stations are "fill in" for heavy use areas. This 
is seamless with the sat service so they "had" to be the same band. So they got 
permission to use the band. What is the betting that once the service is 
established they will drop or price hike the sat service? That would save them 
the $115,000,000 per year that they are paying Intelsat.
 
Robert G8RPI. 


  
___
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: RFM Looking for a Frequency Control Engineer

[Oz-in-DFW]

Not *precisely* on topic, but likely of general interest..

Subject: RFM Looking for a Frequency Control Engineer

Date: Tuesday, February 1, 2011, 8:03 AM
 
RFM's manufacturing partner in Taiwan recently bought a high
end frequency control company and RFM is partnering
with them to market these products in the US and Europe.
 
RFM is looking for a senior RF engineer that is very comfortable with
the nuances of high performance
oscillators - drift, aging, phase noise, Allen variance, jitter, etc.
 
Drop me a private note if you want contact info. 

Oz

-- 
mailto:o...@ozindfw.net
Oz
POB 93167 
Southlake, TX 76092 (Near DFW Airport) 






FC-Req.doc
Description: MS-Word document
___
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] Fwd: RFM Looking for a Frequency Control Engineer

[John Allen]

Where is the position located?  Tks, John

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf
Of Oz-in-DFW
Sent: Thursday, February 03, 2011 3:16 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Fwd: RFM Looking for a Frequency Control Engineer

Not *precisely* on topic, but likely of general interest..

Subject: RFM Looking for a Frequency Control Engineer

Date: Tuesday, February 1, 2011, 8:03 AM
 
RFM's manufacturing partner in Taiwan recently bought a high
end frequency control company and RFM is partnering
with them to market these products in the US and Europe.
 
RFM is looking for a senior RF engineer that is very comfortable with
the nuances of high performance
oscillators - drift, aging, phase noise, Allen variance, jitter, etc.
 
Drop me a private note if you want contact info. 

Oz

-- 
mailto:o...@ozindfw.net
Oz
POB 93167 
Southlake, TX 76092 (Near DFW Airport) 






___
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] Fwd: RFM Looking for a Frequency Control Engineer

[Oz-in-DFW]

Dallas Metro area.  **I** like it ;-)

Sounds like it might be location negotiable though.

On 2/3/2011 2:25 PM, John Allen wrote:
> Where is the position located?  Tks, John
>
> -Original Message-
> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf
> Of Oz-in-DFW
> Sent: Thursday, February 03, 2011 3:16 PM
> To: Discussion of precise time and frequency measurement
> Subject: [time-nuts] Fwd: RFM Looking for a Frequency Control Engineer
>
> Not *precisely* on topic, but likely of general interest..
>
> Subject: RFM Looking for a Frequency Control Engineer
>
> Date: Tuesday, February 1, 2011, 8:03 AM
>  
> RFM's manufacturing partner in Taiwan recently bought a high
> end frequency control company and RFM is partnering
> with them to market these products in the US and Europe.
>  
> RFM is looking for a senior RF engineer that is very comfortable with
> the nuances of high performance
> oscillators - drift, aging, phase noise, Allen variance, jitter, etc.
>  
> Drop me a private note if you want contact info. 
>
> Oz
>

-- 
mailto:o...@ozindfw.net
Oz
POB 93167
Southlake, TX 76092 (Near DFW Airport)




___
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] From GPS World - Lightsquared has been given thegoahead

[Bob Camp]

Hi

I would by no means argue with any of those points. The only thing I would
add is that 40,000 transmitters is a *lot* of hardware to fill in gaps. You
could do a pretty good job covering the whole country with that much
hardware. The same math that goes for jamming, also works pretty well for
coverage.

Bob

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Robert Atkinson
Sent: Thursday, February 03, 2011 12:54 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] From GPS World - Lightsquared has been given
thegoahead



Hi,
First I'm in the UK so this does not directly affect me. I do have some
slightly independent comments.
Firstly the Garmin tests seemed very reasonable and erred to favor
LightSquared. They were free field in an anecohic chamber. There was an L1
notch filter in the output of the LightSquared simulator. I'd guess the
Aviation GPS was worse because of A and older design and B It will only give
valid outputs if it is sure the signal is OK. 
On the politcal side, LightSquared are supposed to be supplying nationwide
satellite service. The ground stations are "fill in" for heavy use areas.
This is seamless with the sat service so they "had" to be the same band. So
they got permission to use the band. What is the betting that once the
service is established they will drop or price hike the sat service? That
would save them the $115,000,000 per year that they are paying Intelsat.
 
Robert G8RPI. 


  
___
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] From GPS World - Lightsquared has been given thegoahead

[clayj]

This is not the first time the FCC "politicians" have ignored their own
technical staff.  A while back there was the same sort of flap around BPL
(Broadband Internet over Power Lines) - after several years of "trials"
and lots of taxpayer money wasted, it's basically been declared a
"non-starter".

So - I wrote my Legislators and asked them to look into this.   Patty
Murray's (Sen D-WA) office responded with a query to the FCC, asking them
to respond to me.  I'm certain that my other Senator will do the same
thing, as will my CongressCritter (well, maybe not, he's not as responsive
on this stuff) - in any case, if we get folks from all 50 states (or even
half) to do the same thing, the FCC will be inundated with "Legislative
Requests" on this, which will at least annoy the heck out of them and MAY
cause them to either review this decision or at least THINK before they do
it again.

Clay
Amateur Radio N7QNM


> Hi
>
> I would by no means argue with any of those points. The only thing I would
> add is that 40,000 transmitters is a *lot* of hardware to fill in gaps.
> You
> could do a pretty good job covering the whole country with that much
> hardware. The same math that goes for jamming, also works pretty well for
> coverage.
>
> Bob
>
> -Original Message-
> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
> Behalf Of Robert Atkinson
> Sent: Thursday, February 03, 2011 12:54 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] From GPS World - Lightsquared has been given
> thegoahead
>
>
>
> Hi,
> First I'm in the UK so this does not directly affect me. I do have some
> slightly independent comments.
> Firstly the Garmin tests seemed very reasonable and erred to favor
> LightSquared. They were free field in an anecohic chamber. There was an L1
> notch filter in the output of the LightSquared simulator. I'd guess the
> Aviation GPS was worse because of A and older design and B It will only
> give
> valid outputs if it is sure the signal is OK.
> On the politcal side, LightSquared are supposed to be supplying nationwide
> satellite service. The ground stations are "fill in" for heavy use areas.
> This is seamless with the sat service so they "had" to be the same
> band. So
> they got permission to use the band. What is the betting that once the
> service is established they will drop or price hike the sat service? That
> would save them the $115,000,000 per year that they are paying Intelsat.
>  
> Robert G8RPI. 
>
>
>
> ___
> 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] From GPS World - Lightsquared has been given thegoahead

[Pete Lancashire]

and as posting in another email

“We conclude
that the pleading cycle for LightSquared’s request — in which the
Comment Public Notice was issued on November 19, 2010, with comments
due on December 2, 2010, and reply comments due on December 9, 2010 —
is sufficient for the decisions we make herein.”

Happy Thanksgiving ...

-pete

On Thu, Feb 3, 2011 at 2:14 PM,   wrote:
> This is not the first time the FCC "politicians" have ignored their own
> technical staff.  A while back there was the same sort of flap around BPL
> (Broadband Internet over Power Lines) - after several years of "trials"
> and lots of taxpayer money wasted, it's basically been declared a
> "non-starter".
>
> So - I wrote my Legislators and asked them to look into this.   Patty
> Murray's (Sen D-WA) office responded with a query to the FCC, asking them
> to respond to me.  I'm certain that my other Senator will do the same
> thing, as will my CongressCritter (well, maybe not, he's not as responsive
> on this stuff) - in any case, if we get folks from all 50 states (or even
> half) to do the same thing, the FCC will be inundated with "Legislative
> Requests" on this, which will at least annoy the heck out of them and MAY
> cause them to either review this decision or at least THINK before they do
> it again.
>
> Clay
> Amateur Radio N7QNM
>
>
>> Hi
>>
>> I would by no means argue with any of those points. The only thing I would
>> add is that 40,000 transmitters is a *lot* of hardware to fill in gaps.
>> You
>> could do a pretty good job covering the whole country with that much
>> hardware. The same math that goes for jamming, also works pretty well for
>> coverage.
>>
>> Bob
>>
>> -Original Message-
>> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
>> Behalf Of Robert Atkinson
>> Sent: Thursday, February 03, 2011 12:54 PM
>> To: Discussion of precise time and frequency measurement
>> Subject: Re: [time-nuts] From GPS World - Lightsquared has been given
>> thegoahead
>>
>>
>>
>> Hi,
>> First I'm in the UK so this does not directly affect me. I do have some
>> slightly independent comments.
>> Firstly the Garmin tests seemed very reasonable and erred to favor
>> LightSquared. They were free field in an anecohic chamber. There was an L1
>> notch filter in the output of the LightSquared simulator. I'd guess the
>> Aviation GPS was worse because of A and older design and B It will only
>> give
>> valid outputs if it is sure the signal is OK.
>> On the politcal side, LightSquared are supposed to be supplying nationwide
>> satellite service. The ground stations are "fill in" for heavy use areas.
>> This is seamless with the sat service so they "had" to be the same
>> band. So
>> they got permission to use the band. What is the betting that once the
>> service is established they will drop or price hike the sat service? That
>> would save them the $115,000,000 per year that they are paying Intelsat.
>>
>> Robert G8RPI.
>>
>>
>>
>> ___
>> 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] From GPS World - Lightsquared has been given thegoahead

[Mike S]

At 05:04 PM 2/3/2011, Bob Camp wrote...
I would by no means argue with any of those points. The only thing I 
would
add is that 40,000 transmitters is a *lot* of hardware to fill in 
gaps.


Which is precisely why that characterization is wrong. "ground stations 
are 'fill in' for heavy use areas" makes no sense - a satellite doesn't 
care about whether there are 1000 users in NYC or 1000 users spread 
across the whole NE seaboard. It is the satellite which fills the gaps 
between ground stations.


The preferred comm link will be through the local terrestrial station, 
because with 40,000 of them, you have possibly 80,000 times the 
available bandwidth of the satellite (satellite has to talk both ways 
over RF), in addition to having lower latency and operating cost.





___
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] From GPS World - Lightsquared has been given thegoahead

[gary]

Do we have any congressional HAMs these days. Bill Nelson should have 
had a license since he was an astronaut, but I'm not finding it.


It only take a little radio knowledge to realize how stupid much of what 
the FCC approves. The FCC raison d'etre is to prevent interference.


___
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] From GPS World - Lightsquared has been given thegoahead

[Mike S]

At 05:54 PM 2/3/2011, gary wrote...
It only take a little radio knowledge to realize how stupid much of 
what the FCC approves. The FCC raison d'etre is to prevent 
interference.


I don't see any reason for people to get all excited. GPS is 
fundamentally a military system, and has very significant visibility, 
being used by _many_ more people than will use the Lightsquared system 
- civilian, commercial and governmental in addition to military. If, 
upon initial deployment, real world interference is an issue, 
Lightsquared will be shut down quickly. There's simply much more 
inertia, money, and constituency behind GPS than Lightsquared.


I asked before if anyone knew the timing requirements for LTE, which is 
the technology this is based on. If it requires synchronized timing 
like CDMA, then Lightspeed would be shooting themselves in the foot if 
they were unable to use GPS based timing within their system. 



___
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] From GPS World - Lightsquared has been given thegoahead

[Tom Holmes]

Two thoughts...

GPS users most likely won't know that Lightsquared is the source of the
problem.

And two: LTE moves a lot of bits ( symbols) to multiple users in each
transmission, many of which are mobile, at pretty decent bit rates, so the
timing and synchronization very likely ARE critical to its success.

Tom Holmes, N8ZM
Tipp City, OH
EM79


> -Original Message-
> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
> Behalf Of Mike S
> Sent: Thursday, February 03, 2011 6:46 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] From GPS World - Lightsquared has been given
> thegoahead
> 
> At 05:54 PM 2/3/2011, gary wrote...
> >It only take a little radio knowledge to realize how stupid much of
> >what the FCC approves. The FCC raison d'etre is to prevent
> >interference.
> 
> I don't see any reason for people to get all excited. GPS is
> fundamentally a military system, and has very significant visibility,
> being used by _many_ more people than will use the Lightsquared system
> - civilian, commercial and governmental in addition to military. If,
> upon initial deployment, real world interference is an issue,
> Lightsquared will be shut down quickly. There's simply much more
> inertia, money, and constituency behind GPS than Lightsquared.
> 
> I asked before if anyone knew the timing requirements for LTE, which is
> the technology this is based on. If it requires synchronized timing
> like CDMA, then Lightspeed would be shooting themselves in the foot if
> they were unable to use GPS based timing within their system.
> 
> 
> ___
> 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] From GPS World - Lightsquared has been given thegoahead

[gary]

Oh, they would have good filtering for THEIR GPS receiver. It;s just the 
rest of us suckers that don't matter.


I have a Trimble GPS antenna I never used due to the goofy voltage.

p/n 16248-50
patent 3984834

My recollection is they have a SAW filter in it. It is used by the Navy, 
though I suspect mine came out of Stanford.




On 2/3/2011 3:46 PM, Mike S wrote:

At 05:54 PM 2/3/2011, gary wrote...

It only take a little radio knowledge to realize how stupid much of
what the FCC approves. The FCC raison d'etre is to prevent interference.


I don't see any reason for people to get all excited. GPS is
fundamentally a military system, and has very significant visibility,
being used by _many_ more people than will use the Lightsquared system -
civilian, commercial and governmental in addition to military. If, upon
initial deployment, real world interference is an issue, Lightsquared
will be shut down quickly. There's simply much more inertia, money, and
constituency behind GPS than Lightsquared.

I asked before if anyone knew the timing requirements for LTE, which is
the technology this is based on. If it requires synchronized timing like
CDMA, then Lightspeed would be shooting themselves in the foot if they
were unable to use GPS based timing within their system.

___
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] From GPS World - Lightsquared has been given thegoahead

[William H. Fite]

Mike, I think you are quite correct.  I wanted to make this observation
earlier but feelings are clearly running so high on this list that I feared
having my head ripped off by individuals of strong conviction.

In my view, it is inconceivable that Lightsquared would be allowed to take
out GPS service for any significant fraction of the population.  There are
just too many Nuvis and TomToms and Magellans in use for that to happen, not
to mention contractors, road-and-bridge builders, surveyor, etc., etc., etc.

  I think this, frankly, is a tempest in a teapot.

If I may dare to mention another point, it seems to be the firm conviction
here that FCC should be exclusively devoted to technical matters that are
invariably subject to the Monday morning quarterbacking of every electrical
engineer in the United States.  Speaking as someone who worked closely with
FCC for a number of years, I can assure you that this is not the case.
Technical issues are only one part of the FCC mission, however dissatisfying
that state of affairs may be to the  technically oriented set.  FCC is also
mandated to consider the economic welfare of the telecommunications industry
and the good of all Americans who rely on telecommunications.  And, of
course, it is a political organization--though I would argue that that
aspect of its operation is overstated.

If you gentlemen think that FCC arouses the ire of time nuts and others of
our ilk, you have no idea how it arouses the ire of those on the
commercial/business side of the table.  For every one angry engineer ranting
about the pols and nitwits who mismanage FCC, there are ten or twenty
business people ranting about
those-goddamned-hams-and-their-effing-little-toy-radios.

FCC is an easy target for anyone on any side of any telecommunications issue
who wants to take a shot.

Fire away.

Bill



On Thu, Feb 3, 2011 at 6:46 PM, Mike S  wrote:

> At 05:54 PM 2/3/2011, gary wrote...
>
>  It only take a little radio knowledge to realize how stupid much of what
>> the FCC approves. The FCC raison d'etre is to prevent interference.
>>
>
> I don't see any reason for people to get all excited. GPS is fundamentally
> a military system, and has very significant visibility, being used by _many_
> more people than will use the Lightsquared system - civilian, commercial and
> governmental in addition to military. If, upon initial deployment, real
> world interference is an issue, Lightsquared will be shut down quickly.
> There's simply much more inertia, money, and constituency behind GPS than
> Lightsquared.
>
> I asked before if anyone knew the timing requirements for LTE, which is the
> technology this is based on. If it requires synchronized timing like CDMA,
> then Lightspeed would be shooting themselves in the foot if they were unable
> to use GPS based timing within their system.
>
> ___
> 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] From GPS World - Lightsquared has been given thegoahead

[Don Latham]

No head-ripping, Bill, simply that the FCC makes by fiat decisions that
belong in the marketplace. As long as it's easier for business to
cultivate a mandate instead of competing, I'll continue to dislike the FCC
behavior.
Part of the blame actually devolves from a great mistake by Reagan, the
Federal Register, q.v.
Cynical Don

William H. Fite
> Mike, I think you are quite correct.  I wanted to make this observation
> earlier but feelings are clearly running so high on this list that I
> feared
> having my head ripped off by individuals of strong conviction.
>
> In my view, it is inconceivable that Lightsquared would be allowed to take
> out GPS service for any significant fraction of the population.  There are
> just too many Nuvis and TomToms and Magellans in use for that to happen,
> not
> to mention contractors, road-and-bridge builders, surveyor, etc., etc.,
> etc.
>
>   I think this, frankly, is a tempest in a teapot.
>
> If I may dare to mention another point, it seems to be the firm conviction
> here that FCC should be exclusively devoted to technical matters that are
> invariably subject to the Monday morning quarterbacking of every
> electrical
> engineer in the United States.  Speaking as someone who worked closely
> with
> FCC for a number of years, I can assure you that this is not the case.
> Technical issues are only one part of the FCC mission, however
> dissatisfying
> that state of affairs may be to the  technically oriented set.  FCC is
> also
> mandated to consider the economic welfare of the telecommunications
> industry
> and the good of all Americans who rely on telecommunications.  And, of
> course, it is a political organization--though I would argue that that
> aspect of its operation is overstated.
>
> If you gentlemen think that FCC arouses the ire of time nuts and others of
> our ilk, you have no idea how it arouses the ire of those on the
> commercial/business side of the table.  For every one angry engineer
> ranting
> about the pols and nitwits who mismanage FCC, there are ten or twenty
> business people ranting about
> those-goddamned-hams-and-their-effing-little-toy-radios.
>
> FCC is an easy target for anyone on any side of any telecommunications
> issue
> who wants to take a shot.
>
> Fire away.
>
> Bill
>
>
>
> On Thu, Feb 3, 2011 at 6:46 PM, Mike S  wrote:
>
>> At 05:54 PM 2/3/2011, gary wrote...
>>
>>  It only take a little radio knowledge to realize how stupid much of
>> what
>>> the FCC approves. The FCC raison d'etre is to prevent interference.
>>>
>>
>> I don't see any reason for people to get all excited. GPS is
>> fundamentally
>> a military system, and has very significant visibility, being used by
>> _many_
>> more people than will use the Lightsquared system - civilian, commercial
>> and
>> governmental in addition to military. If, upon initial deployment, real
>> world interference is an issue, Lightsquared will be shut down quickly.
>> There's simply much more inertia, money, and constituency behind GPS
>> than
>> Lightsquared.
>>
>> I asked before if anyone knew the timing requirements for LTE, which is
>> the
>> technology this is based on. If it requires synchronized timing like
>> CDMA,
>> then Lightspeed would be shooting themselves in the foot if they were
>> unable
>> to use GPS based timing within their system.
>>
>> ___
>> 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.
>


-- 
"Neither the voice of authority nor the weight of reason and argument are
as significant as experiment, for thence comes quiet to the mind."
R. Bacon
"If you don't know what it is, don't poke it."
Ghost in the Shell


Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304
www.lightningforensics.com
www.sixmilesystems.com


___
time-nuts mailing list -- 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] Lightsquared and a little math

[Perry Sandeen]

List,

Wrote "The nationwide LightSquared network, consisting of approximately 40,000 
cellular base stations, will cover 92 percent of the U.S. population by 2015

You can make book the missing 8 percent will be areas that exclude the farmers 
and ranchers who provide our food but the left will make sure the always 
“financially challenged” in the slums will have it and probably for free.

The proof?  In every state in the US there is something called a universal 
service fee on your phone bill.  This is usually 35 to 45 cents.  It is not 
optional. The purpose of that fee is modeled after the postal system that 
charges you the same amount whether one sends a letter 2 miles or 2,000 miles 
so that everyone can economically communicate.

By law the phone companies are given that money to provide the rural areas with 
the same services that are offered in urban areas.  This includes broadband DSL 
and TV services.  It has never happened and probably won’t as we seem to have 
the best politicians money can buy.  I’m a conservative and I have lived in two 
rural areas now and the story is the same.  AT&T continues to send me glowing 
adverts for bundled phone service only.  When I lived in a large town they came 
door to door trying to sign people up for broadband and the regularly sent 
glowing adverts in my phone bill to sign up for bundled phone, DSL broadband, 
and TV.

This explains while they kept the lights on continuously at the Dallas Cowboy 
stadium for the superbowel, they had 15 minute rolling blackouts to all the 
area hospitals, nursing homes and elder care facilities where residents rely on 
continued electrical service for their oxygen concentrators and assisted 
breathing devices.

Regards,

Perrier



  

___
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] Lightsquared and a little math

[lists]

Five out of nine people believe money is free speech and a corporation is a 
person.  Well five conservative judges.  ;-)

-Original Message-
From: Perry Sandeen 
Sender: time-nuts-boun...@febo.com
Date: Thu, 3 Feb 2011 22:45:05 
To: time-nuts-requ...@febo.com
Reply-To: Discussion of precise time and frequency measurement

Subject: [time-nuts] Lightsquared and a little math

List,

Wrote "The nationwide LightSquared network, consisting of approximately 40,000 
cellular base stations, will cover 92 percent of the U.S. population by 2015

You can make book the missing 8 percent will be areas that exclude the farmers 
and ranchers who provide our food but the left will make sure the always 
“financially challenged” in the slums will have it and probably for free.

The proof?  In every state in the US there is something called a universal 
service fee on your phone bill.  This is usually 35 to 45 cents.  It is not 
optional. The purpose of that fee is modeled after the postal system that 
charges you the same amount whether one sends a letter 2 miles or 2,000 miles 
so that everyone can economically communicate.

By law the phone companies are given that money to provide the rural areas with 
the same services that are offered in urban areas.  This includes broadband DSL 
and TV services.  It has never happened and probably won’t as we seem to have 
the best politicians money can buy.  I’m a conservative and I have lived in two 
rural areas now and the story is the same.  AT&T continues to send me glowing 
adverts for bundled phone service only.  When I lived in a large town they came 
door to door trying to sign people up for broadband and the regularly sent 
glowing adverts in my phone bill to sign up for bundled phone, DSL broadband, 
and TV.

This explains while they kept the lights on continuously at the Dallas Cowboy 
stadium for the superbowel, they had 15 minute rolling blackouts to all the 
area hospitals, nursing homes and elder care facilities where residents rely on 
continued electrical service for their oxygen concentrators and assisted 
breathing devices.

Regards,

Perrier



  

___
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.