[time-nuts] Home NTP ? GPS Clock s/w

2009-11-08 Thread Ray Hudson

Can anyone suggest how to setup a 'home' NTP server under windows (useing WAMP 
or similar). This is just for use on a home LAN.
Please no linux suggestions as I know they exist.

Also does anyone know a good (free) GPS clock for windows (synced to com port 
or NTP server)

Thanks Ray, VK4TFT


  
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Re: [time-nuts] Home NTP ? GPS Clock s/w

2009-11-08 Thread Richard H McCorkle
Ray,
For a simple solution with WinDoze machines take a look at Tardis 2000
at http://www.kaska.demon.co.uk as a possible approach. Tardis can get NTP
time from the internet or use a GPS NEMA message to sync the time server
and reboadcast NTP on your local LAN. The K9 client can be used on the other
machines to keep them in sync. Its free to try with no nag screens so the
price is right.

Richard


 Can anyone suggest how to setup a 'home' NTP server under windows (useing 
 WAMP or
 similar). This is just for use on a home LAN.
 Please no linux suggestions as I know they exist.

 Also does anyone know a good (free) GPS clock for windows (synced to com port 
 or
 NTP server)

 Thanks Ray, VK4TFT


   
 __
 Win 1 of 4 Sony home entertainment packs thanks to Yahoo!7.
 Enter now: http://au.docs.yahoo.com/homepageset/


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Re: [time-nuts] Home NTP ? GPS Clock s/w

2009-11-08 Thread Hal Murray

hudson...@yahoo.com.au said:
 Can anyone suggest how to setup a 'home' NTP server under windows
 (useing WAMP or similar). This is just for use on a home LAN.

I know nothing about Windows.  

The standard ntp package runs on windows.
Meinberg compiles it and wraps it in an installer.
  http://www.meinberg.de/english/sw/ntp.htm


 Also does anyone know a good (free) GPS clock for windows (synced to
 com port or NTP server)

What level of accuracy are you looking for?

You can get free servers over the net.  Your ISP may offer a NTP server.  The 
pool is what most people use.
  http://www.pool.ntp.org/en/use.html
  http://support.ntp.org/bin/view/Servers/NTPPoolServers


If you want better time, a local GPS clock is the usual answer.  The Garmin 
GPS 18 is popular.  Under $100, some assembly required.
  http://support.ntp.org/bin/view/Support/ConfiguringGarminRefclocks


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[time-nuts] Efratom LPRO101 in a Tek TM500 plug-in housing?

2009-11-08 Thread Mark Sims

Yes,  I have built one.

I mounted the LPRO on an L shaped piece of aluminum .065 sheet the width of 
the LPRO.  The large end of the L is bolted to the LPRO baseplate and TM500 
prototyping module circuit board with threaded standoffs (jack screws)  The 
small end of the L is bolted to the TM500 module top plate with 12 
countersunk screws and thermal compound.   

There are two very small and thin fans mounted on the back of the TM500 circuit 
board on small standoffs.  They blow towards the baseplate (though the holes in 
the prototyping board).


  
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[time-nuts] Trimble GPS lock light

2009-11-08 Thread ashley40

HelloWe're new to the list, thank you for extending membership to us 

   Question: some gps receivers mentioned here ( like the Z3801A) have a 
panel lock LED to indicate when the thing is locked onto satelites. What 
about the trimble thunderbolt that is also apparently popular ? Is there some 
indication (other than software which we have no intention of using) of 
satelite lock ?

Thank You
Kiss-Electronics
Ms Ashley Hall
Cornelius, Oregon


W7DUZ
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[time-nuts] LPRO in TM500

2009-11-08 Thread Corby Dawson
Dave,

I have in the past installed a number of FRSC and also PRS10 into single
slot TM500 modules.

If I remember correctly I used a thick (about 1/8) aluminum plate most
of the length of the module as the mounting and heat sink.

The edge of the plate was attached to the module with screws and aluminum
angle brackets to allow the top and bottom of the module to also help
with the heat sinking.

They all worked fine.

If you use a dual wide module you will have more room to work with and
maybe could used a finned heat sink.

The edge connector used was one from a guy on ebay that made custom ones
to use with TM500 Modules.

You just screw it into place in the module using the existing holes.

For power I paralleled the two 25VAC windings, fed them thru a full wave
bridge into a largish capacitor, and then into a regulator set for 22VDC.

The regulator is isolated with a silpad and bolted to the top frame of
the module.

The 10Mhz output is on the front along with a lock LED.

Hope this helps.

Corby Dawson

Weight Loss Program
Best Weight Loss Program - Click Here!
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Re: [time-nuts] Home NTP ? GPS Clock s/w

2009-11-08 Thread Bruce Lane
There's a windows package called NMEATime which is fairly cheap. It 
will accept input via serial port from just about any GPS receiver which speaks 
standard NMEA sentences, and it will use that to sync up the PC's clock. It 
will also act as an NTP time server, and it'll even generate a modulated IRIG-B 
signal using the system's sound card.

http://www.visualgps.net/NMEATime/

Happy timing.

*** REPLY SEPARATOR  ***

On 08-Nov-09 at 00:44 Ray Hudson wrote:

Can anyone suggest how to setup a 'home' NTP server under windows (useing
WAMP or similar). This is just for use on a home LAN.
Please no linux suggestions as I know they exist.

Also does anyone know a good (free) GPS clock for windows (synced to com
port or NTP server)

Thanks Ray, VK4TFT


 
__
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Enter now: http://au.docs.yahoo.com/homepageset/


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Re: [time-nuts] time-nuts Digest, Vol 64, Issue 14

2009-11-08 Thread Mark Amos
Bill, et al.

It's Sunday in Ohio and, as I ate my toast with the rising sun, humming
along with Sibelius, I did a few more tests using your Z axis suggestion -
Thanks!

I tapped Channel 1 (the Trimble GPSDO) and routed its signal to the Z input.
I made a recording of the pattern (two complete rotations, 720 degrees of
shift.) It is stored here: http://members.toast.net/mark.amos/Trimble Z
axis.mov 

I also tried tapping Channel 2 for the Z input (again, recording two
complete rotations:) http://members.toast.net/mark.amos.LPRO Z axis.mov
(These are huge files.)

Using dual-trace mode on the scope, the direction of the LPRO sinusoid is
clear compared to the stationary Trimble sinusoid (not recorded.)

The when I ran these tests yesterday (measuring 182 seconds for 360 degress)
it was with a homebrew GPSDO.  However, subsequent runs showed poor
irreproducibility of the results indicating that the homebrew unit might not
a very stable source - so I switched to the Trimble for succeeding
measurements, which have been very consistent.  I may not have noticed the
homebrew GPSDO problem if I hadn't compared it to the LPRO in these tests.

Obviously, for most of you, this is pretty basic stuff, but these visual
aids are useful for me to get an intuitive feel for the underlying
phenomena.

It will be interesting to watch the changes over time.  

Mark

--

Message: 1
Date: Sat, 7 Nov 2009 18:08:59 -0600
From: Bill Hawkins b...@iaxs.net
Subject: Re: [time-nuts] Calculating frequency differences using
Lissajoufigures
To: 'Discussion of precise time and frequency measurement'
time-nuts@febo.com
Message-ID: 0ab667aca96f44819a8255af686c3...@cyrus
Content-Type: text/plain;   charset=us-ascii

Well, it's 5 PM in Minneapolis, so I joined my wife on the deck to toast
the vanishing sun. Didn't sing any Jimmy Buffet songs, though.

But, to the matter at hand. If your Lissajous pattern scope has a Z input
for intensity modulation, drive it with one of the 10 MHz sources. The
direction of rotation will be obvious, as the intensified portion chases
its way around the pattern.

Then again, maybe you need to phase shift one of the signals 90 degrees,
apply the straight and shifted versions of the same signal to X and Y so
you get a circle, and then apply the other signal to the Z input. That
would not be a Lissajous figure, though.

You would still need to observe any changes, unless you are certain that
the frequency difference will maintain the same sign. I guess that's what
drives people to buy GPIB interface cards and spend hours making the whole
thing work correctly.

Bill Hawkins


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Re: [time-nuts] time-nuts Digest, Vol 64, Issue 14

2009-11-08 Thread Mark Amos
There was a typo in the message below the second recording link should be:
http://members.toast.net/mark.amos/LPRO Z axis.mov

-Original Message-
From: Mark Amos [mailto:m...@amos-family.com] 
Sent: Sunday, November 08, 2009 12:58 PM
To: 'time-nuts@febo.com'
Subject: RE: time-nuts Digest, Vol 64, Issue 14

Bill, et al.

It's Sunday in Ohio and, as I ate my toast with the rising sun, humming
along with Sibelius, I did a few more tests using your Z axis suggestion -
Thanks!

I tapped Channel 1 (the Trimble GPSDO) and routed its signal to the Z input.
I made a recording of the pattern (two complete rotations, 720 degrees of
shift.) It is stored here: http://members.toast.net/mark.amos/Trimble Z
axis.mov 

I also tried tapping Channel 2 for the Z input (again, recording two
complete rotations:) http://members.toast.net/mark.amos.LPRO Z axis.mov
(These are huge files.)

Using dual-trace mode on the scope, the direction of the LPRO sinusoid is
clear compared to the stationary Trimble sinusoid (not recorded.)

The when I ran these tests yesterday (measuring 182 seconds for 360 degress)
it was with a homebrew GPSDO.  However, subsequent runs showed poor
irreproducibility of the results indicating that the homebrew unit might not
a very stable source - so I switched to the Trimble for succeeding
measurements, which have been very consistent.  I may not have noticed the
homebrew GPSDO problem if I hadn't compared it to the LPRO in these tests.

Obviously, for most of you, this is pretty basic stuff, but these visual
aids are useful for me to get an intuitive feel for the underlying
phenomena.

It will be interesting to watch the changes over time.  

Mark

--

Message: 1
Date: Sat, 7 Nov 2009 18:08:59 -0600
From: Bill Hawkins b...@iaxs.net
Subject: Re: [time-nuts] Calculating frequency differences using
Lissajoufigures
To: 'Discussion of precise time and frequency measurement'
time-nuts@febo.com
Message-ID: 0ab667aca96f44819a8255af686c3...@cyrus
Content-Type: text/plain;   charset=us-ascii

Well, it's 5 PM in Minneapolis, so I joined my wife on the deck to toast
the vanishing sun. Didn't sing any Jimmy Buffet songs, though.

But, to the matter at hand. If your Lissajous pattern scope has a Z input
for intensity modulation, drive it with one of the 10 MHz sources. The
direction of rotation will be obvious, as the intensified portion chases
its way around the pattern.

Then again, maybe you need to phase shift one of the signals 90 degrees,
apply the straight and shifted versions of the same signal to X and Y so
you get a circle, and then apply the other signal to the Z input. That
would not be a Lissajous figure, though.

You would still need to observe any changes, unless you are certain that
the frequency difference will maintain the same sign. I guess that's what
drives people to buy GPIB interface cards and spend hours making the whole
thing work correctly.

Bill Hawkins


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Re: [time-nuts] Efratom LPRO101 in a Tek TM500 plug-in housing?

2009-11-08 Thread J. Forster
Early TM500 mainframes (TM503) did not have a high power compartment. This
might be the reason for Ball's design choice.

-John

===

 I have a PTB-100 that was made by Ball/Efratom. This is in a two wide
 TM-500 plugin. It is mounted in the far left slots in a TM-506 frame.

 If it were me, I would mount it in the far right slots and pick up
 power from the high power slot. This slot is also directly in front
 of the fan in the TM-506 frame.

 Just my observations from a commercial product.

 73
 Glenn
 WB4UIV

   At 08:23 PM 11/7/2009, you wrote:
Has anyone built a LPRO-101 into one of these plugin housings? I'm
toying with the idea, but don't want to reinvent the wheel. My
biggest concern is getting rid of the heat.

-Dave
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Re: [time-nuts] Trimble GPS lock light

2009-11-08 Thread Stanley Reynolds
Take a look at this:
http://www.ko4bb.com/Timing/GPSMonitor/

Stanley


- Original Message 
From: ashle...@aol.com ashle...@aol.com
To: time-nuts@febo.com
Sent: Sun, November 8, 2009 10:50:01 AM
Subject: [time-nuts] Trimble GPS lock light


HelloWe're new to the list, thank you for extending membership to us 

      Question: some gps receivers mentioned here ( like the Z3801A) have a 
panel lock LED to indicate when the thing is locked onto satelites. What 
about the trimble thunderbolt that is also apparently popular ? Is there some 
indication (other than software which we have no intention of using) of 
satelite lock ?

Thank You
Kiss-Electronics
Ms Ashley Hall
Cornelius, Oregon


W7DUZ
=
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Re: [time-nuts] time-nuts Digest, Vol 64, Issue 14

2009-11-08 Thread Magnus Danielson

Dear Mark,

Mark Amos wrote:

The when I ran these tests yesterday (measuring 182 seconds for 360 degress)
it was with a homebrew GPSDO.  However, subsequent runs showed poor
irreproducibility of the results indicating that the homebrew unit might not
a very stable source - so I switched to the Trimble for succeeding
measurements, which have been very consistent.  I may not have noticed the
homebrew GPSDO problem if I hadn't compared it to the LPRO in these tests.

Obviously, for most of you, this is pretty basic stuff, but these visual
aids are useful for me to get an intuitive feel for the underlying
phenomena.

It will be interesting to watch the changes over time. 


Recall that 1/f types of noises does not average well over time, so 
there will be some walking around in phase. All to keep us on our toes a 
little more. It is natural of feedback oscillators.


Cheers,
Magnus

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Re: [time-nuts] Trimble GPS lock light

2009-11-08 Thread Didier Juges
 

 -Original Message-
 From: time-nuts-boun...@febo.com 
 [mailto:time-nuts-boun...@febo.com] On Behalf Of Stanley Reynolds
 Sent: Sunday, November 08, 2009 1:14 PM
 To: Discussion of precise time and frequency measurement
 Subject: Re: [time-nuts] Trimble GPS lock light
 
 Take a look at this:
 http://www.ko4bb.com/Timing/GPSMonitor/
 
 Stanley
 
 
 - Original Message 
 From: ashle...@aol.com ashle...@aol.com
 To: time-nuts@febo.com
 Sent: Sun, November 8, 2009 10:50:01 AM
 Subject: [time-nuts] Trimble GPS lock light
 
 
 HelloWe're new to the list, thank you for extending 
 membership to us 
       Question: some gps receivers mentioned here ( like the 
 Z3801A) have a panel lock LED to indicate when the thing is 
 locked onto satelites. What about the trimble thunderbolt 
 that is also apparently popular ? Is there some indication 
 (other than software which we have no intention of using) of 
 satelite lock ?
 
 Thank You
 Kiss-Electronics
 Ms Ashley Hall
 Cornelius, Oregon
 
 
 W7DUZ
 =
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Re: [time-nuts] Trimble GPS lock light

2009-11-08 Thread Didier Juges
Regarding the GPS Monitor, I have received a couple of requests for an LED
indicating lock.

That is easy to do, but I am fairly busy at the moment (a deadline by
Thanksgiving, if I am done by then...)

So if you want me to do it, it will probably be around Christmas before I
have much time at all.

Alternately, the software is available, it uses the free SDCC compiler and
the free Silabs IDE, all you need is a Silabs JTAG adapter, which can be
bought for about $25 or so (debug adapter and toolstick base) and you can
write/modify the software. 

If anyone feels like playing with it, send me an email.

Didier KO4BB

 -Original Message-
 From: time-nuts-boun...@febo.com 
 [mailto:time-nuts-boun...@febo.com] On Behalf Of Stanley Reynolds
 Sent: Sunday, November 08, 2009 1:14 PM
 To: Discussion of precise time and frequency measurement
 Subject: Re: [time-nuts] Trimble GPS lock light
 
 Take a look at this:
 http://www.ko4bb.com/Timing/GPSMonitor/
 
 Stanley
 
 
 - Original Message 
 From: ashle...@aol.com ashle...@aol.com
 To: time-nuts@febo.com
 Sent: Sun, November 8, 2009 10:50:01 AM
 Subject: [time-nuts] Trimble GPS lock light
 
 
 HelloWe're new to the list, thank you for extending 
 membership to us 
       Question: some gps receivers mentioned here ( like the 
 Z3801A) have a panel lock LED to indicate when the thing is 
 locked onto satelites. What about the trimble thunderbolt 
 that is also apparently popular ? Is there some indication 
 (other than software which we have no intention of using) of 
 satelite lock ?
 
 Thank You
 Kiss-Electronics
 Ms Ashley Hall
 Cornelius, Oregon
 
 
 W7DUZ
 =
 ___
 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.
 
 
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Re: [time-nuts] Trimble GPS lock light

2009-11-08 Thread Richard W. Solomon
Here is a lock indicator that I incorporated into the N1JEZ
GPSDO I built. Not sure if it can be used on the T-Bolt or not.
Don't see why it cannot be used.

73, Dick, W1KSZ

http://www.ham-radio.com/wa6vhs/GPS/3DFix%20LED%20only%20with%20pics%20_4_.pdf

-Original Message-
From: Didier Juges did...@cox.net
Sent: Nov 8, 2009 8:01 PM
To: 'Discussion of precise time and frequency measurement' time-nuts@febo.com
Subject: Re: [time-nuts] Trimble GPS lock light

 

 -Original Message-
 From: time-nuts-boun...@febo.com 
 [mailto:time-nuts-boun...@febo.com] On Behalf Of Stanley Reynolds
 Sent: Sunday, November 08, 2009 1:14 PM
 To: Discussion of precise time and frequency measurement
 Subject: Re: [time-nuts] Trimble GPS lock light
 
 Take a look at this:
 http://www.ko4bb.com/Timing/GPSMonitor/
 
 Stanley
 
 
 - Original Message 
 From: ashle...@aol.com ashle...@aol.com
 To: time-nuts@febo.com
 Sent: Sun, November 8, 2009 10:50:01 AM
 Subject: [time-nuts] Trimble GPS lock light
 
 
 HelloWe're new to the list, thank you for extending 
 membership to us 
       Question: some gps receivers mentioned here ( like the 
 Z3801A) have a panel lock LED to indicate when the thing is 
 locked onto satelites. What about the trimble thunderbolt 
 that is also apparently popular ? Is there some indication 
 (other than software which we have no intention of using) of 
 satelite lock ?
 
 Thank You
 Kiss-Electronics
 Ms Ashley Hall
 Cornelius, Oregon
 
 
 W7DUZ
 =
 ___
 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.
 
 
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Re: [time-nuts] Trimble GPS lock light

2009-11-08 Thread Didier Juges
The Thunderbolt sends TSIP messages, not NMEA messages. If your lock
indicator understands the TSIP protocol, then of course it will work.
Otherwise, probably not. From the pdf file you included in your message, it
looks like it is NMEA only.

The TSIP protocol is not complicated (just slightly more so than NMEA
messages because of the escape sequences), and all the details can be found
on the TSIP spec from Trimble, or if you just want the basics, you can use
the decoder I wrote for my GPS Monitor project. It's open source.

Didier KO4BB 

 -Original Message-
 From: time-nuts-boun...@febo.com 
 [mailto:time-nuts-boun...@febo.com] On Behalf Of Richard W. Solomon
 Sent: Sunday, November 08, 2009 7:39 PM
 To: Discussion of precise time and frequency measurement
 Subject: Re: [time-nuts] Trimble GPS lock light
 
 Here is a lock indicator that I incorporated into the N1JEZ 
 GPSDO I built. Not sure if it can be used on the T-Bolt or not.
 Don't see why it cannot be used.
 
 73, Dick, W1KSZ
 
 http://www.ham-radio.com/wa6vhs/GPS/3DFix%20LED%20only%20with%
 20pics%20_4_.pdf
 
 -Original Message-
 From: Didier Juges did...@cox.net
 Sent: Nov 8, 2009 8:01 PM
 To: 'Discussion of precise time and frequency measurement' 
 time-nuts@febo.com
 Subject: Re: [time-nuts] Trimble GPS lock light
 
  
 
  -Original Message-
  From: time-nuts-boun...@febo.com
  [mailto:time-nuts-boun...@febo.com] On Behalf Of Stanley Reynolds
  Sent: Sunday, November 08, 2009 1:14 PM
  To: Discussion of precise time and frequency measurement
  Subject: Re: [time-nuts] Trimble GPS lock light
  
  Take a look at this:
  http://www.ko4bb.com/Timing/GPSMonitor/
  
  Stanley
  
  
  - Original Message 
  From: ashle...@aol.com ashle...@aol.com
  To: time-nuts@febo.com
  Sent: Sun, November 8, 2009 10:50:01 AM
  Subject: [time-nuts] Trimble GPS lock light
  
  
  HelloWe're new to the list, thank you for extending 
 membership to 
  us 
        Question: some gps receivers mentioned here ( like the
  Z3801A) have a panel lock LED to indicate when the thing 
 is locked 
  onto satelites. What about the trimble thunderbolt 
 that is also 
  apparently popular ? Is there some indication (other than software 
  which we have no intention of using) of satelite lock ?
  
  Thank You
  Kiss-Electronics
  Ms Ashley Hall
  Cornelius, Oregon
  
  
  W7DUZ
  =
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