Re: [time-nuts] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread Rex
There's also a few cars, trucks, emergency vehicles, hand-helds and 
timing receivers that he didn't bother to mention at all. I suspect most 
of those would be fixed by complete replacement. (If a full fix is 
even possible in all situations.)



On 3/6/2012 7:37 PM, saidj...@aol.com wrote:

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 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] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread Raj
I'd accept if they replaced the whole worlds GPSes, it is a cheap option as 
they claim!
I'd like the latest model of smart phone too when you are at it L2!

Cheers
Raj


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] military frequency standard pin out??

2012-03-07 Thread Paul A. Cianciolo
Hello Folks,

 

I found in my collection a frequency standard that I acquired mil surplus at
one time.

The model number of 2N6625-078-4718  internet search yields nothing on this
number.

The unit is a common looking one , approx. 4 x 3 x 4 with an aluminum
cover that comes off.

The cover has the layout of the parts.  The connector has 6 coax outputs
into a D type connector.

It appears 3 pins for power 1 is ground that easy to see but the others are 

2) a  red white and black that leads to the circuit board

3) and a brown white and black also leads to the circuit board.

 

I would like to fire this up, but not burn it up.

 

 

Any ideas?

 

Thank you

 

 

Paul A. Cianciolo

W1VLF

http://www.rescueelectronics.com/

Our business computer network is  powered exclusively by solar and wind
power.

Converting Photons to Electrons for over 20 years

 

___
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] military frequency standard pin out??

2012-03-07 Thread ROLYNN PRECHTL K7DFW
 The model number of 2N6625-078-4718  internet search yields nothing on this 
 number.




Remove the 2N from the gaggle and you'll have a standard number sequence that 
Google has some info
for you.



RP





..._._


___
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] military frequency standard pin out??

2012-03-07 Thread Arthur Dent
Paul A. Cianciolo paulc at snet.net 
The cover has the layout of the parts.  The connector has 6 coax outputs
into a D type connector.

+
It sounds like the R-1051/URR receiver frequency standard. There is some info 
on 
repairing it here: 
http://www.jamminpower.com/PDF/Navships%200967-034-2000.pdf 
___
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] USB Interface, legacy Software

2012-03-07 Thread Joe Leikhim
I have a software program, no longer supported, which requires two RS232 
serial com port interfaces, one to communicate with a sensor (signal 
strength collection receiver) and the second to accept serial data from 
a GPS.


The laptop computer I am using has only one RS232 Com port which I must 
use with the sensor due to incompatibility with USB to serial converters 
I have tried. This leaves the USB for the GPS input. I am assuming that 
the GPS string should be acceptable as I do nor believe the  software 
needs to handshake with the GPS.


I would like to use a Delorme USB type receiver on the USB port. Can 
anyone recommend a software add on that will make this type receiver 
appear as a standard RS232 Com port to my software?


Thanks

--
Joe Leikhim

Leikhim and Associates
Communications Consultants
Oviedo, Florida

www.Leikhim.com

jleik...@leikhim.com

407-982-0446

Note to GMail Account users. Due to an abnormally high volume of spam 
originating from bogus GMail accounts, I have found it necessary to block 
certain GMail traffic. Please phone me if you believe your message was not 
received.


___
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] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread Mike S

On 3/6/2012 10:37 PM, saidj...@aol.com wrote:

I'm sorry, but Mr. Javad is on crack.
Yeah right. In what world does he live  in?


The one in which he's head of the only company who offers GNSS 
receivers with ... LightSquared Inside.


http://javad.com/jgnss/javad/news/pr20110921.html

___
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] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread robkimber...@btinternet.com
   It's all very squalid!
   Sent from Samsung Mobile
    Original message  Subject: Re: [time-nuts] FCC Chair
   Talks Spectrum, Gets GPS Letter From: Mike S To: time-nuts@febo.com CC:

   On 3/6/2012 10:37 PM, saidj...@aol.com wrote:
I'm sorry, but Mr. Javad is on crack.
   Yeah right. In what world does he live  in?
   The one in which he's head of the only company who offers GNSS
   receivers with ... LightSquared Inside.
   http://javad.com/jgnss/javad/news/pr20110921.html
   ___
   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] USB Interface, legacy Software

2012-03-07 Thread Chris Albertson
On Wed, Mar 7, 2012 at 8:48 AM, Joe Leikhim jleik...@leikhim.com wrote:

 I would like to use a Delorme USB type receiver on the USB port. Can
 anyone recommend a software add on that will make this type receiver appear
 as a standard RS232 Com port to my software?

Unless Delorme makes a driver for your OS that makes their GPS look
like it's a serial device you are going to have to use a serial GPS
and a serial to USB cable.

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.


Re: [time-nuts] USB Interface, legacy Software

2012-03-07 Thread Bob Camp
Hi

My guess is that your software isn't just looking for a serial port. It's
also looking for specific strings back from the GPS. Depending on what you
attach, it may or may not give you the strings you need. If you are doing
timing, a USB interface will be a major headache. 

Most sensor = usb issues are a result of the sensor getting a supply
voltage from the serial port. The USB serial chips often don't have enough
power to do the trick. There are various outfits that sell multi port USB
interfaces that allow you to attach a power dongle to them. Often these are
the only thing that will get a setup like yours to work.

Bob

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Joe Leikhim
Sent: Wednesday, March 07, 2012 11:49 AM
To: time-nuts@febo.com
Subject: [time-nuts] USB Interface, legacy Software

I have a software program, no longer supported, which requires two RS232 
serial com port interfaces, one to communicate with a sensor (signal 
strength collection receiver) and the second to accept serial data from 
a GPS.

The laptop computer I am using has only one RS232 Com port which I must 
use with the sensor due to incompatibility with USB to serial converters 
I have tried. This leaves the USB for the GPS input. I am assuming that 
the GPS string should be acceptable as I do nor believe the  software 
needs to handshake with the GPS.

I would like to use a Delorme USB type receiver on the USB port. Can 
anyone recommend a software add on that will make this type receiver 
appear as a standard RS232 Com port to my software?

Thanks

-- 
Joe Leikhim

Leikhim and Associates
Communications Consultants
Oviedo, Florida

www.Leikhim.com

jleik...@leikhim.com

407-982-0446

Note to GMail Account users. Due to an abnormally high volume of spam
originating from bogus GMail accounts, I have found it necessary to block
certain GMail traffic. Please phone me if you believe your message was not
received.


___
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] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread Bob Camp
Hi

The annual sales of GPS devices are around $5B (yes with a B) a year. Let's
say that you only replace those sold over the last four years. He's only off
by about 1000X *assuming* the new ones are as cheap as the old ones...

Bob

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of robkimber...@btinternet.com
Sent: Wednesday, March 07, 2012 12:03 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] FCC Chair Talks Spectrum, Gets GPS Letter

   It's all very squalid!
   Sent from Samsung Mobile
    Original message  Subject: Re: [time-nuts] FCC Chair
   Talks Spectrum, Gets GPS Letter From: Mike S To: time-nuts@febo.com CC:

   On 3/6/2012 10:37 PM, saidj...@aol.com wrote:
I'm sorry, but Mr. Javad is on crack.
   Yeah right. In what world does he live  in?
   The one in which he's head of the only company who offers GNSS
   receivers with ... LightSquared Inside.
   http://javad.com/jgnss/javad/news/pr20110921.html
   ___
   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] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread Charles P. Steinmetz

Rob wrote:


Javad got into bed with Lightsquared and now things are not working as
planned he is throwing his toys out of the pram.


Javad was hoping to profit from making (and/or perhaps licensing the 
technology to make) retrofit filters.  Some would have been paid for 
by LS (presumably at wholesale), but the vast majority would have 
been sold at retail to GPS users.  Call it piggyback speculation 
(Javad speculating on LS's speculation on the possibility of putting 
cheap Mobile Satellite Service (MSS) spectrum to a much 
higher-valued use and reaping a windfall).


I love that LS is suggesting that if it is not allowed to go forward 
with its terrestrial network it should either be reimbursed for its 
losses or be given other spectrum in exchange that it can use for 
the terrestrial network.  (I.e., LS has the balls to suggest that 
taxpayers should guarantee its speculation.  Have the past 5 years 
taught us nothing?)  LS paid a fair price for MSS spectrum (which is 
relatively inexpensive because the market for MSS services has never 
developed).  It can still operate an MSS network, or sell the 
spectrum to someone else who wants to operate an MSS network.  It 
still has the full value of the MSS spectrum, which it acquired at 
MSS prices, and has lost nothing (except many millions in legal fees 
fighting for authorization to build its terrestrial network).


Best regards,

Charles





___
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] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread Don Latham
What a tangled web we weave. . .
Don

Charles P. Steinmetz
 Rob wrote:

Javad got into bed with Lightsquared and now things are not working as
planned he is throwing his toys out of the pram.

 Javad was hoping to profit from making (and/or perhaps licensing the
 technology to make) retrofit filters.  Some would have been paid for
 by LS (presumably at wholesale), but the vast majority would have
 been sold at retail to GPS users.  Call it piggyback speculation
 (Javad speculating on LS's speculation on the possibility of putting
 cheap Mobile Satellite Service (MSS) spectrum to a much
 higher-valued use and reaping a windfall).

 I love that LS is suggesting that if it is not allowed to go forward
 with its terrestrial network it should either be reimbursed for its
 losses or be given other spectrum in exchange that it can use for
 the terrestrial network.  (I.e., LS has the balls to suggest that
 taxpayers should guarantee its speculation.  Have the past 5 years
 taught us nothing?)  LS paid a fair price for MSS spectrum (which is
 relatively inexpensive because the market for MSS services has never
 developed).  It can still operate an MSS network, or sell the
 spectrum to someone else who wants to operate an MSS network.  It
 still has the full value of the MSS spectrum, which it acquired at
 MSS prices, and has lost nothing (except many millions in legal fees
 fighting for authorization to build its terrestrial network).

 Best regards,

 Charles





 ___
 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.


Re: [time-nuts] military frequency standard pin out??

2012-03-07 Thread iov...@inwind.it
Ogg: [time-nuts] military frequency standard pin out??

Paul A. Cianciolo paulc at snet.net 
The cover has the layout of the parts.  The connector has 6 coax outputs
into a D type connector.

+
It sounds like the R-1051/URR receiver frequency standard. There is some info 
on 
repairing it here: 
http://www.jamminpower.com/PDF/Navships%200967-034-2000.pdf 

Yes, it is. For a picture look here:
http://www.jamminpower.com/main/r1051.html

Should you be unable to download the manuals, I could send you at least the 
schematic diagram and component location of the Freq. Std.
I have one of these oscillators, and years ago I used  18VDC for testing. It 
is rated at 10E-8 per day, and has 5MHz, 1MHz and 10 MHz  plus 2x500KHz 
outputs. As you may have seen, it was used on a radio.

Antonio I8IOV


___
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] military frequency standard pin out??

2012-03-07 Thread Bob Camp
Hi

The gotcha here is that frequency standard is a relative term. For what
ever reason, these were a high failure item in the R-1051. People talk about
seeing large piles of them at repair depots. The replacement contracts often
went to outfits that had little experience in the OCXO business. Even a
good part may not be what a time nut would call a frequency standard.

Bob

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Arthur Dent
Sent: Wednesday, March 07, 2012 11:35 AM
To: time-nuts@febo.com
Subject: [time-nuts] military frequency standard pin out??

Paul A. Cianciolo paulc at snet.net 
The cover has the layout of the parts.  The connector has 6 coax outputs
into a D type connector.

+
It sounds like the R-1051/URR receiver frequency standard. There is some
info on 
repairing it here: 
http://www.jamminpower.com/PDF/Navships%200967-034-2000.pdf 
___
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] military frequency standard pin out??

2012-03-07 Thread Stan, W1LE

Good Morning Paul,

Sounds like a very old military unit.   Probably 60's vintage.
before the 13 digit NSNs.

national stock number (NSN) is probably 6625-078-4718.
I do not recall what the 2N could mean.

a modern NSN would look like 6625-00-078-4718   or  6625-01-078-4718

Stan, W1LE   on Cape Cod



On 3/7/2012 10:45 AM, Paul A. Cianciolo wrote:

Hello Folks,



I found in my collection a frequency standard that I acquired mil surplus at
one time.

The model number of 2N6625-078-4718  internet search yields nothing on this
number.

The unit is a common looking one , approx. 4 x 3 x 4 with an aluminum
cover that comes off.

The cover has the layout of the parts.  The connector has 6 coax outputs
into a D type connector.

It appears 3 pins for power 1 is ground that easy to see but the others are

2) a  red white and black that leads to the circuit board

3) and a brown white and black also leads to the circuit board.



I would like to fire this up, but not burn it up.





Any ideas?



Thank you





Paul A. Cianciolo

W1VLF

http://www.rescueelectronics.com/

Our business computer network is  powered exclusively by solar and wind
power.

Converting Photons to Electrons for over 20 years



___
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] military frequency standard pin out??

2012-03-07 Thread Pete Lancashire
6625-078-4718   -   * Frequency Standard Module from R-1051* and
RT-618* radios; usable as replacement or adapt to other need where
standard is required. Crystal oven with 5 MHz crystal provides 5 MHz
sine wave output (approx 1.8V) plus possible non-sine outputs dual
500KHz, 1  10 MHz. Designed stability: 1 part in 10 / day. Requires
18-24VDC input. 4.4x3x4.5, 2 lbs sh. Used crystal only is checked,
other output may need repair, with schematic,

Found on Fair Radio's site ..

-pete

On Wed, Mar 7, 2012 at 7:45 AM, Paul A. Cianciolo pa...@snet.net wrote:
 Hello Folks,



 I found in my collection a frequency standard that I acquired mil surplus at
 one time.

 The model number of 2N6625-078-4718  internet search yields nothing on this
 number.

 The unit is a common looking one , approx. 4 x 3 x 4 with an aluminum
 cover that comes off.

 The cover has the layout of the parts.  The connector has 6 coax outputs
 into a D type connector.

 It appears 3 pins for power 1 is ground that easy to see but the others are

 2) a  red white and black that leads to the circuit board

 3) and a brown white and black also leads to the circuit board.



 I would like to fire this up, but not burn it up.





 Any ideas?



 Thank you





 Paul A. Cianciolo

 W1VLF

 http://www.rescueelectronics.com/

 Our business computer network is  powered exclusively by solar and wind
 power.

 Converting Photons to Electrons for over 20 years



 ___
 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] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread SAIDJACK
Sorry for my language, I was quite upset when I read his letter.
 
If it really was trivial and very low cost to upgrade GPS receivers, then  
he should not worry too much about loosing much revenue. This sounds more 
like  he made major investments in either Lightsquared itself, or into 
designing and  qualifying compatible receivers, and hoping for a major payday 
which 
is not  coming.
 
There should be other solutions for LS such as allocating to a  different sp
ectrum etc to not lose a $14 billon investment.
 
Also his claims that GPS receivers will soon be obsolete anyway's are  
clearly not true of course.
 
This reminds me about the futile episode of Edison electrocuting  Elephants 
to prove his DC power grid to be superior to AC...
 
bye,
Said
 
 
In a message dated 3/7/2012 09:03:10 Pacific Standard Time,  
robkimber...@btinternet.com writes:

It's all very squalid!
Sent from  Samsung Mobile
 Original message  Subject: Re:  [time-nuts] FCC Chair
Talks Spectrum, Gets GPS Letter From:  Mike S To: time-nuts@febo.com CC:

On 3/6/2012 10:37 PM,  saidj...@aol.com wrote:
 I'm sorry, but Mr. Javad is on  crack.
Yeah right. In what world does he live   in?
The one in which he's head of the only company who offers  GNSS
receivers with ... LightSquared Inside.
http://javad.com/jgnss/javad/news/pr20110921.html
___
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] military frequency standard pin out??

2012-03-07 Thread Paul A. Cianciolo
Hi Bob,

Yes.. that is what I am trying to find out.   But I don’t want to chance it
till I know for sure what the power requirements are.
Thanks for the heads up though, I did not realize the bad rep these had.



Paul A. Cianciolo
W1VLF
http://www.rescueelectronics.com/
Our business computer network is  powered exclusively by solar and wind
power.
Converting Photons to Electrons for over 20 years



-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Bob Camp
Sent: Wednesday, March 07, 2012 12:51 PM
To: 'Arthur Dent'; 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] military frequency standard pin out??

Hi

The gotcha here is that frequency standard is a relative term. For what
ever reason, these were a high failure item in the R-1051. People talk about
seeing large piles of them at repair depots. The replacement contracts often
went to outfits that had little experience in the OCXO business. Even a
good part may not be what a time nut would call a frequency standard.

Bob

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Arthur Dent
Sent: Wednesday, March 07, 2012 11:35 AM
To: time-nuts@febo.com
Subject: [time-nuts] military frequency standard pin out??

Paul A. Cianciolo paulc at snet.net
The cover has the layout of the parts.  The connector has 6 coax outputs
into a D type connector.

+
It sounds like the R-1051/URR receiver frequency standard. There is some
info on repairing it here: 
http://www.jamminpower.com/PDF/Navships%200967-034-2000.pdf
___
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] military frequency standard pin out??

2012-03-07 Thread Bill Riches
I used to rebuild these units many years ago and they were quite a good 
oscillator - these units would be good for a few parts in 10-9 and 10-8. 

73,

Bill, WA2DVU


Paul A. Cianciolo paulc at snet.net
The cover has the layout of the parts.  The connector has 6 coax 
outputs into a D type connector.

+
It sounds like the R-1051/URR receiver frequency standard. There is 
some info
on 
repairing it here: 
http://www.jamminpower.com/PDF/Navships%200967-034-2000.pdf

Yes, it is. For a picture look here:
http://www.jamminpower.com/main/r1051.html

Should you be unable to download the manuals, I could send you at least the 
schematic diagram and component location of the Freq. Std.
I have one of these oscillators, and years ago I used  18VDC for testing. It is 
rated at 10E-8 per day, and has 5MHz, 1MHz and 10 MHz  plus 2x500KHz outputs. 
As you may have seen, it was used on a radio.

Antonio I8IOV





___
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] military frequency standard pin out??

2012-03-07 Thread Bill Riches
They were dogs though - I worked on mine for repairing 1051 rx - seemed
failure rate was more than 50 %  - took 2 or three to make a good unit! But
when you made one work they were quite accurate considering their age.

73,

Bill, WA2DVU


Hi Bob,

Yes.. that is what I am trying to find out.   But I don't want to chance it
till I know for sure what the power requirements are.
Thanks for the heads up though, I did not realize the bad rep these had.




___
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] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread Magnus Danielson

On 03/07/2012 07:22 PM, saidj...@aol.com wrote:

Sorry for my language, I was quite upset when I read his letter.

If it really was trivial and very low cost to upgrade GPS receivers, then
he should not worry too much about loosing much revenue. This sounds more
like  he made major investments in either Lightsquared itself, or into
designing and  qualifying compatible receivers, and hoping for a major payday 
which
is not  coming.

There should be other solutions for LS such as allocating to a  different sp
ectrum etc to not lose a $14 billon investment.

Also his claims that GPS receivers will soon be obsolete anyway's are
clearly not true of course.

This reminds me about the futile episode of Edison electrocuting  Elephants
to prove his DC power grid to be superior to AC...


I think it is interesting that he goes out to such length to alienate 
himself from the rest of the industry, but then he acts like a bad 
looser for loosing out on business he was speculating on getting money from.


Then again, if he would supply us all with full-capable receivers at the 
cost of L2, then maybe it would just be worth it.


Ah well. Should we stop kicking this dog, it is already lying there 
half-dead anyway.


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] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread Tom Holmes
I think it is amusing, and sad at the same time, that Javad claims that his
position is the one where technology is losing out to politics.

Maybe he thinks the bulk of the population and the FCC really are that
stupid and gullible? Did I really just defend those two groups?

Tom Holmes, N8ZM
Tipp City, OH
EM79


 -Original Message-
 From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
 Behalf Of robkimber...@btinternet.com
 Sent: Wednesday, March 07, 2012 12:03 PM
 To: time-nuts@febo.com
 Subject: Re: [time-nuts] FCC Chair Talks Spectrum, Gets GPS Letter
 
It's all very squalid!
Sent from Samsung Mobile
 Original message  Subject: Re: [time-nuts] FCC Chair
Talks Spectrum, Gets GPS Letter From: Mike S To: time-nuts@febo.com CC:
 
On 3/6/2012 10:37 PM, saidj...@aol.com wrote:
 I'm sorry, but Mr. Javad is on crack.
Yeah right. In what world does he live  in?
The one in which he's head of the only company who offers GNSS
receivers with ... LightSquared Inside.
http://javad.com/jgnss/javad/news/pr20110921.html
___
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 2100 Manual Available

2012-03-07 Thread GandalfG8
Following recent discussions on the partial resurgence, for now anyway, of  
Loran-C in the US I have uploaded the Austron 2100 Loran-C Timing  receiver 
manual to Rapidshare, with many thanks to Dan Rae who provided the  printed 
original.
 
As with my previous manual uploads this is created from lossless TIFs, in  
this instance 300dpi for text and 400dpi for schematics, and there are  two 
versions.
The raw PDF file is large, just over 91 MB, but there is also  an 
optimised version at approx 9MB.
The optimised file seems perfectly adequate to me but I offer both anyway,  
your choice.
 
Full size.
 
_https://rapidshare.com/files/316522356/Austron_2100_Timing_Receiver.pdf_ 
(https://rapidshare.com/files/316522356/Austron_2100_Timing_Receiver.pdf) 
 
Optimised
 
_https://rapidshare.com/files/303627596/Austron_2100_Timing_Receiver_Opt.pdf
_ 
(https://rapidshare.com/files/303627596/Austron_2100_Timing_Receiver_Opt.pdf) 
 
Feel free to upload them anywhere you choose but please don't complain  to 
me if Rapidshare is busy, just be patient and try later.
 
Regards
 
Nigel
GM8PZR
 
 
 
 
___
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] Austron 2100 Manual Available

2012-03-07 Thread J. Forster
Which manual? 2100F?

-John




 Following recent discussions on the partial resurgence, for now anyway, of
 Loran-C in the US I have uploaded the Austron 2100 Loran-C Timing
 receiver
 manual to Rapidshare, with many thanks to Dan Rae who provided the
 printed
 original.

 As with my previous manual uploads this is created from lossless TIFs, in
 this instance 300dpi for text and 400dpi for schematics, and there are
 two
 versions.
 The raw PDF file is large, just over 91 MB, but there is also  an
 optimised version at approx 9MB.
 The optimised file seems perfectly adequate to me but I offer both anyway,
 your choice.

 Full size.

 _https://rapidshare.com/files/316522356/Austron_2100_Timing_Receiver.pdf_
 (https://rapidshare.com/files/316522356/Austron_2100_Timing_Receiver.pdf)

 Optimised

 _https://rapidshare.com/files/303627596/Austron_2100_Timing_Receiver_Opt.pdf
 _
 (https://rapidshare.com/files/303627596/Austron_2100_Timing_Receiver_Opt.pdf)

 Feel free to upload them anywhere you choose but please don't complain  to
 me if Rapidshare is busy, just be patient and try later.

 Regards

 Nigel
 GM8PZR




 ___
 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] Austron 2100 Manual Available

2012-03-07 Thread GandalfG8
Suck it and see:-)
 
 
In a message dated 07/03/2012 23:05:52 GMT Standard Time, j...@quikus.com  
writes:

Which  manual? 2100F?

-John




 Following  recent discussions on the partial resurgence, for now anyway, 
of
  Loran-C in the US I have uploaded the Austron 2100 Loran-C Timing
  receiver
 manual to Rapidshare, with many thanks to Dan Rae who  provided the
 printed
 original.

 As with my  previous manual uploads this is created from lossless TIFs, in
 this  instance 300dpi for text and 400dpi for schematics, and there are
  two
 versions.
 The raw PDF file is large, just over 91 MB,  but there is also  an
 optimised version at approx 9MB.
  The optimised file seems perfectly adequate to me but I offer both  
anyway,
 your choice.

 Full size.

  _https://rapidshare.com/files/316522356/Austron_2100_Timing_Receiver.pdf_
  (https://rapidshare.com/files/316522356/Austron_2100_Timing_Receiver.pdf)

  Optimised

  
_https://rapidshare.com/files/303627596/Austron_2100_Timing_Receiver_Opt.pdf
  _
  
(https://rapidshare.com/files/303627596/Austron_2100_Timing_Receiver_Opt.pdf)

  Feel free to upload them anywhere you choose but please don't complain   
to
 me if Rapidshare is busy, just be patient and try  later.

 Regards

 Nigel
  GM8PZR




  ___
 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] MicroLogic ML200 Loran-C

2012-03-07 Thread Poul-Henning Kamp

I picked up a MicroLogic ML200 Loran-C a long time ago, and after playing
a bit with it, shelved it, as not really usable for time-nuts purposes.

Now, during the yearly cleaning of my lab, I dragged it out and powered
it up, and it still seems to work, sometimes.

I opened it up, and discovered that it is based on an Intel 4004
microcomputer and after resocketing some ICs it seems to work better.

If anybody has any information/manuals etc. for this beast, I'd love to
get hold of a copy.


-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.

___
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] MicroLogic ML200 Loran-C

2012-03-07 Thread Azelio Boriani
Found very little googling for this ML200, found only a line in the 1977
Radionavigation Journal...

On Thu, Mar 8, 2012 at 12:36 AM, Poul-Henning Kamp p...@phk.freebsd.dkwrote:


 I picked up a MicroLogic ML200 Loran-C a long time ago, and after playing
 a bit with it, shelved it, as not really usable for time-nuts purposes.

 Now, during the yearly cleaning of my lab, I dragged it out and powered
 it up, and it still seems to work, sometimes.

 I opened it up, and discovered that it is based on an Intel 4004
 microcomputer and after resocketing some ICs it seems to work better.

 If anybody has any information/manuals etc. for this beast, I'd love to
 get hold of a copy.


 --
 Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
 p...@freebsd.org | TCP/IP since RFC 956
 FreeBSD committer   | BSD since 4.3-tahoe
 Never attribute to malice what can adequately be explained by incompetence.

 ___
 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] MicroLogic ML200 Loran-C

2012-03-07 Thread Poul-Henning Kamp
In message cal8xpmoo_arncqvmt65xko5ai7xz2xd1bdxfxm1dnzuruqr...@mail.gmail.com
, Azelio Boriani writes:

Found very little googling for this ML200, found only a line in the 1977
Radionavigation Journal...

Yes, found that too.  There's also a report where it was used in van
measuring loran-C on highways, but neither contains any relevant details.

-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.

___
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] USB Interface, legacy Software

2012-03-07 Thread Michael Blazer
I've been using Delmore GPS receivers for several years. They have a 
driver (http://support.delorme.com/questions.php?questionid=24 
http://support.delorme.com/questions.php?questionid=24) for Windows 
that will install it as a standard serial port sending NMEA messages.  
The older serial Earthmates can be powered by applying 5 volts to pin 9 
(return to pin 5).
As long as the software communicates thru the standard Com drivers, 
Serial to USB converters should work OK.  I've been able to tap the USB 
5 volts and power the serial device (as above). Just look for a 
converter that is in a hard plastic case, not molded.  If found the 
Gold-X adapters are pretty consistent working with legacy software.


Mike Blazer
San Antonio, TX

On 3/7/2012 10:48 AM, Joe Leikhim wrote:
I have a software program, no longer supported, which requires two 
RS232 serial com port interfaces, one to communicate with a sensor 
(signal strength collection receiver) and the second to accept serial 
data from a GPS.


The laptop computer I am using has only one RS232 Com port which I 
must use with the sensor due to incompatibility with USB to serial 
converters I have tried. This leaves the USB for the GPS input. I am 
assuming that the GPS string should be acceptable as I do nor believe 
the  software needs to handshake with the GPS.


I would like to use a Delorme USB type receiver on the USB port. Can 
anyone recommend a software add on that will make this type receiver 
appear as a standard RS232 Com port to my software?


Thanks


___
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] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread Michael Blazer
I read a white paper Javad put out touting their new (and cheaper to 
build) front end filter.  Of course it is patented.  So guess where 
everyone has to go should LS get the green light.


Mike

On 3/7/2012 12:22 PM, saidj...@aol.com wrote:

Sorry for my language, I was quite upset when I read his letter.

If it really was trivial and very low cost to upgrade GPS receivers, then
he should not worry too much about loosing much revenue. This sounds more
like  he made major investments in either Lightsquared itself, or into
designing and  qualifying compatible receivers, and hoping for a major payday 
which
is not  coming.

There should be other solutions for LS such as allocating to a  different sp
ectrum etc to not lose a $14 billon investment.

Also his claims that GPS receivers will soon be obsolete anyway's are
clearly not true of course.

This reminds me about the futile episode of Edison electrocuting  Elephants
to prove his DC power grid to be superior to AC...

bye,
Said


In a message dated 3/7/2012 09:03:10 Pacific Standard Time,
robkimber...@btinternet.com writes:

It's all very squalid!
Sent from  Samsung Mobile
 Original message  Subject: Re:  [time-nuts] FCC Chair
Talks Spectrum, Gets GPS Letter From:  Mike S To: time-nuts@febo.com CC:

On 3/6/2012 10:37 PM,  saidj...@aol.com wrote:

I'm sorry, but Mr. Javad is on  crack.
Yeah right. In what world does he live   in?

The one in which he's head of the only company who offers  GNSS
receivers with ... LightSquared Inside.
http://javad.com/jgnss/javad/news/pr20110921.html
___
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] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread lists
Filtering is basically what is done by those skilled in the art. I think it 
would be hard to defend such a patent. 

Then again, Apple has managed to patent and defend in court the ipad color 
scheme.
 

-Original Message-
From: Michael Blazer mbla...@satx.rr.com
Sender: time-nuts-boun...@febo.com
Date: Wed, 07 Mar 2012 18:19:57 
To: Discussion of precise time and frequency measurementtime-nuts@febo.com
Reply-To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Subject: Re: [time-nuts] FCC Chair Talks Spectrum, Gets GPS Letter

I read a white paper Javad put out touting their new (and cheaper to 
build) front end filter.  Of course it is patented.  So guess where 
everyone has to go should LS get the green light.

Mike

On 3/7/2012 12:22 PM, saidj...@aol.com wrote:
 Sorry for my language, I was quite upset when I read his letter.

 If it really was trivial and very low cost to upgrade GPS receivers, then
 he should not worry too much about loosing much revenue. This sounds more
 like  he made major investments in either Lightsquared itself, or into
 designing and  qualifying compatible receivers, and hoping for a major payday 
 which
 is not  coming.

 There should be other solutions for LS such as allocating to a  different sp
 ectrum etc to not lose a $14 billon investment.

 Also his claims that GPS receivers will soon be obsolete anyway's are
 clearly not true of course.

 This reminds me about the futile episode of Edison electrocuting  Elephants
 to prove his DC power grid to be superior to AC...

 bye,
 Said


 In a message dated 3/7/2012 09:03:10 Pacific Standard Time,
 robkimber...@btinternet.com writes:

 It's all very squalid!
 Sent from  Samsung Mobile
  Original message  Subject: Re:  [time-nuts] FCC Chair
 Talks Spectrum, Gets GPS Letter From:  Mike S To: time-nuts@febo.com CC:

 On 3/6/2012 10:37 PM,  saidj...@aol.com wrote:
 I'm sorry, but Mr. Javad is on  crack.
 Yeah right. In what world does he live   in?
 The one in which he's head of the only company who offers  GNSS
 receivers with ... LightSquared Inside.
 http://javad.com/jgnss/javad/news/pr20110921.html
 ___
 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] MicroLogic ML200 Loran-C

2012-03-07 Thread J. Forster
Last seen, the 4004 chips were much in demand (perhaps by gamers)

-John




 In message
 cal8xpmoo_arncqvmt65xko5ai7xz2xd1bdxfxm1dnzuruqr...@mail.gmail.com
 , Azelio Boriani writes:

Found very little googling for this ML200, found only a line in the 1977
Radionavigation Journal...

 Yes, found that too.  There's also a report where it was used in van
 measuring loran-C on highways, but neither contains any relevant details.

 --
 Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
 p...@freebsd.org | TCP/IP since RFC 956
 FreeBSD committer   | BSD since 4.3-tahoe
 Never attribute to malice what can adequately be explained by
 incompetence.

 ___
 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] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread Peter Bell
Personally, I would be opposed to LS even if they *did* offer to
replace every GPS in the world at their cost.  The real issue here is
more fundamental - if you are going to allow people to operate high
power terrestrial based transmitters in a designated satellite
downlink band then what is the point of having spectrum planning at
all?

I suppose you can't really blame LS for trying it on - the real fault
lies with the FCC for not shooting the idea down completely when it
was first suggested.

Regards,

Pete

On Wed, Mar 7, 2012 at 6:16 PM, Raj vu2...@gmail.com wrote:
 I'd accept if they replaced the whole worlds GPSes, it is a cheap option as 
 they claim!
 I'd like the latest model of smart phone too when you are at it L2!

 Cheers
 Raj

___
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] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread Charles P. Steinmetz

Pete wrote:


I suppose you can't really blame LS for trying it on - the real fault
lies with the FCC for not shooting the idea down completely when it
was first suggested.


The regulatory notion is ancillary terrestrial component 
(ATC).  Its original purpose (conceived in the early '90s) was to 
allow satellite operators to fill in dead zones.  Satellite radio 
(SDARS) operators began deploying ATC in the late '90s and early 
'00s.  The SDARS licensees seriously abused the privilege (causing 
extensive interference to users of the adjacent WCS spectrum), and it 
has been downhill ever since.  I thought it was a bad idea in 1992, 
and subsequent experience has only strengthened my view.


As I have said before, the current FCC has the (I believe) unfounded 
notions (1) that an exploding need for additional mobile broadband 
spectrum will continue unabated for at least a decade (based on the 
figures for the first couple of years of data, which are inevitably 
way higher than ultimate demand for any new service), and (2) that 
providing more broadband spectrum is critical to the US pulling out 
of the recession.  Accepting these (I believe) mistaken premises, the 
FCC is in an absolute panic to increase the supply of mobile 
broadband spectrum by 500 MHz nationwide.  And good decisions are 
rarely made by bureaucrats in a panic.  The decision to encourage 
terrestrial use of the MSS spectrum is just one of many examples.


As a reality check on my skepticism regarding the FCC's conclusions, 
or at least the practicability of fulfilling them:  If you accept the 
FCC's demand projections for mobile broadband spectrum, it is clear 
that even 500 MHz of additional spectrum would not come anywhere near 
fulfilling the rising demand over the next 5 years.  That would take 
more like 3-10 GHz, depending on other assumptions.  But there is 
simply not that much spectrum physically suitable for mobile 
broadband use, even if you allocate it all to wireless carriers -- 
frequencies below about 500 MHz require antennas too large for 
practical handsets, and frequencies much above 2 GHz do not carry far 
enough in open country, or penetrate sufficiently into buildings, 
natural canyons, or urban canyons, to work acceptably.


All that said, LS's engineers should have (and may have) foreseen the 
devastating effect the use of ATC on their particular L-band spectrum 
would have on GPS as we know it, and LS management should have known 
that their plan would ultimately fail.  But the prospect of making a 
windfall of many billions of dollars apparently blinded them (or, in 
their minds, justified the risk).  But in the end, LS took the risk 
and LS should bear its losses and quit trying to stick US taxpayers 
with it.  They paid fair prices for MSS spectrum that can still be 
used for its intended purpose, or sold.  No loss, no foul.


Best regards,

Charles






___
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] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread Jim Lux

On 3/7/12 10:22 AM, saidj...@aol.com wrote:

Sorry for my language, I was quite upset when I read his letter.

If it really was trivial and very low cost to upgrade GPS receivers, then
he should not worry too much about loosing much revenue. This sounds more
like  he made major investments in either Lightsquared itself, or into
designing and  qualifying compatible receivers, and hoping for a major payday 
which
is not  coming.

There should be other solutions for LS such as allocating to a  different sp
ectrum etc to not lose a $14 billon investment.


I don't think $14B has actually been spent (as in actually paid to a 
manufacturer of parts and/or workers).. sure there's lots of paper 
investments back and forth, but not much cash has changed hands.


We were talking about this at lunch today.. SKyTerra cost something like 
1/2B.  They launched a next gen sat recently (maybe 1B).. I find it hard 
to believe they've spent close to 1B on their test ground stations and 
though they clearly have armies of lawyers and accountants, 1B buys a 
lot of legal fees.


They may well have made commitments and orders for multiple B of future 
purchases, and there will be termination liability if they cancel 
orders, etc.  But again, it's not like they have 1B in their vaunted 
dual mode handset chips sitting in inventory at Qualcomm..





Also his claims that GPS receivers will soon be obsolete anyway's are
clearly not true of course.

This reminds me about the futile episode of Edison electrocuting  Elephants
to prove his DC power grid to be superior to AC...


Those states that use electrocution *do* use AC in the electric chair, 
though... Granted we don't refer to westinghousing the offender as 
Edison advocated, though.








___
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

2012-03-07 Thread DaveH
Multipath propagation issues?

http://en.wikipedia.org/wiki/Multipath_propagation

We can certainly throw computational power against that wall but I think
that this would be an issue for TV stations.

AM should be better

DaveH

 -Original Message-
 From: time-nuts-boun...@febo.com 
 [mailto:time-nuts-boun...@febo.com] On Behalf Of Chris Albertson
 Sent: Monday, March 05, 2012 9:27 AM
 To: Discussion of precise time and frequency measurement
 Subject: Re: [time-nuts] Loran in the US
 
 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.  No transmitters to build.   The receivers would be more
 complete but that is OK in 2012.   In the old days  it was to
 expensive to put a complex computer inside a radio but now that is
 routine.So I can imagine a receivers that can listen to 20 or 30
 broadcast stations, look of the latitude and longitude of each one and
 compute a best fit to the delays.   Actually that is how GPS works but
 only in L1
 
 Traditionally the main problem with using comercail radios for
 navigation has been then they don't issue a station ID frequenty
 enough so you have to listen for a long time to know what station
 you've tuned.   But radio with a computer inside would know the
 station by it's frequency and the approx. location of the receiver.
 
 
 On Sun, Mar 4, 2012 at 1:02 PM, Charles P. Steinmetz
 charles_steinm...@lavabit.com wrote:
  Antonio wrote:
 
  Now, that the Loran C ressurection seems to be probable
 
 
  I suspect that it is not yet anywhere near probable -- more 
 likely there is
  now some remote possibility of a ressurection if many difficult
  preconditions (including Congressional action) are all met.
 
  Best regards,
 
  Charles
 
 
 
 
 
 
 
  ___
  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.
 
 
 
 -- 
 
 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.


Re: [time-nuts] Austron 2100 Manual Available

2012-03-07 Thread David J Taylor
Following recent discussions on the partial resurgence, for now anyway, 
of
Loran-C in the US I have uploaded the Austron 2100 Loran-C Timing 
receiver
manual to Rapidshare, with many thanks to Dan Rae who provided the 
printed

original.

[]

Regards

Nigel
GM8PZR


My thanks to Dan and Nigel for providing this information, and for taking 
the time to do the work.


David GM8ARV
--
SatSignal software - quality software written to your requirements
Web:  http://www.satsignal.eu
Email:  david-tay...@blueyonder.co.uk 



___
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] FCC Chair Talks Spectrum, Gets GPS Letter

2012-03-07 Thread Hal Murray

mbla...@satx.rr.com said:
 I read a white paper Javad put out touting their new (and cheaper to  build)
 front end filter.  Of course it is patented.  So guess where  everyone has
 to go should LS get the green light. 

Was that filter included as part of the recent round of testing?  Did it work?

I don't remember seeing any grand press releases along the lines of just use 
our filter.



-- 
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.


Re: [time-nuts] Loran in the US

2012-03-07 Thread Poul-Henning Kamp

Has anybody asked them how good timefreq they're trying to deliver ?

I would assume that they are aiming for a backup for GPS in
telecom-GPSDO context.

If so, frequency stability is priority number one and time is
probably just better than 100msec or so

-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.

___
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] MicroLogic ML200 Loran-C

2012-03-07 Thread Poul-Henning Kamp
In message 2561.12.6.201.116.1331169308.squir...@popaccts.quikus.com, J. For
ster writes:

Last seen, the 4004 chips were much in demand (perhaps by gamers)

And chip-collectors

But they're not leaving that receiver as long as there is smoke in them.

-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.

___
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.