Re: [time-nuts] OT: End of an Era

2010-12-04 Thread d . seiter
Last time I drove by (Thursday) they were still there; maybe they were working 
on the one closest to Yahoo (or maybe I was just worn out and didn't notice). 
I'd love to have one moved to my back yard, but the neighbors would probably 
complain (and the power lines would be too close). 


Dave 
- Original Message - 
From: k6...@comcast.net 
To: time-nuts@febo.com 
Sent: Saturday, December 4, 2010 1:00:59 PM 
Subject: [time-nuts] OT: End of an Era 

The last two steerable dishes at Onizuka AFB (The Blue Cube) in Silicon Valley 
are being disassembled. 

One of those local landmarks, highway 237 at Mathilda. 

Did anyone see them listed on eBay? 

cheers-- 

Bob Martin K6RTM 

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Re: [time-nuts] Lady Heather Wish-list

2010-12-04 Thread Charles P. Steinmetz

John wrote:


current beta, with heather.exe dated June 2, 2010 at 1:41 PM


I just installed this update, and find that the "/g/" command ([turn 
off] RMS info) does not seem to work.  If it is passed by the 
shortcut at launch time, only the Help for Command Line Options 
launches (not LH itself).  If I try to invoke it from within LH, I 
get an "Unknown command line option" error message.  Has this 
function been reassigned?  The command line options help file still 
lists "/" as "RMS info."


And add my heartfelt thanks to everyone who has contributed to 
LH.  I've seen lots of projects of this type, but very rarely with 
the success demonstrated by LH.  Thanks ever so much.


Best regards,

Charles





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[time-nuts] Precision Oscillator Parts FS

2010-12-04 Thread Perry Sandeen
Fellow time-nutters,

I have the following precision frequency parts for sale.

Quantity (4) 

NOS 3.000.000 MHz Crystals.  They are clear glass hermetically sealed in HC-6 
holders and individually serial numbered.  The were manufactured by Midland 
with a 51-67 production date. They were originally made for Hallicrafters 
military frequency standards.  I have no other info as to oven temperature but 
I believe it is 85C as that what they typically used in other designs.

I will sell them for USD$15 each postpaid in the USA.  I will sell overseas for 
additional postage.  I want to be paid by either USPO money order or personal 
check.


Quantity (4)

10.00 MHz Crystal Oscillators.  Made by EG&G.  Model T 424, P/N 
1DN14-CV90-2201-1.  Made between 90-40 and 90-50.  RFE. They are 2 X 2 inches 
square and ½ in thick with two 6-32 mounting studs on the bottom and also have 
5 pins 1/4  inch long coming out the bottom. On one side the have a multi-turn 
piston capacitor.  I do not know if they are temperature compensated or not but 
suspect they are.

They run on 12 volts but do not have EFC, but I will include an article by a 
California Ham Radio operator who added that function as there is an extra 
available pin.

I ran them all for about a month and set them to less than .1Hz error compared 
to my HP 5370B.  I have not re-tested them since I moved to a better standard.  
These are far superior from what you would get from Mouser or other suppliers.  
Guaranteed to be settable at 10 MHz to less than 100 milli-Hz error.

USD$ 30 post paid in USA.  Additional for overseas. Same payment terms as the 
crystals.

Please contact me off list if interested.

Regards,

Perrier



  

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Re: [time-nuts] OT [GPS Survey grade RX]

2010-12-04 Thread jimlux

wa1...@att.net wrote:
I'd like to get to 30cm.  My hand-held GPS gets me to about 4m if the 
constalation of birds is in my favor.


Budget would be about $1k.



30 cm relative to yourself, or relative to some official point (state 
plane grid, for instance).




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Re: [time-nuts] OT [GPS Survey grade RX]

2010-12-04 Thread jimlux

wa1...@att.net wrote:
I wish to survey some of my land here in the US. What used GPS receivers 
out there might be good candidates?





All of the usual survey instrument companies have GPS widgets of one 
sort or another.  Trimble, Topcon, etc.


However, if it's a one shot deal, just go rent the gear from a surveying 
equipment place. A couple hundred bucks for the week or weekend, and 
you're done.


I assume you're doing this for your own amusement, because there's a lot 
more to doing a survey than just determining the lat/lon of some points 
in some coordinate system.


(for one thing, the legal boundary is where the physical 
monuments/markers are, not where you might calculate it at.. The border 
between Colorado and New Mexico is quite a ways from where Congress said 
it should be (some parallel of latitude), because the original surveyor 
was drunk, and now, everyone has to live with it)



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Re: [time-nuts] OT [GPS Survey grade RX]

2010-12-04 Thread wa1...@att.net
I'd like to get to 30cm.  My hand-held GPS gets me to about 4m if the  
constalation of birds is in my favor.


Budget would be about $1k.


-Brian, WA1ZMS

On Dec 4, 2010, at 9:11 PM, "Bill Hawkins"  wrote:


How accurate do you want the survey to be? What's your budget?

A handheld GPS can give you 3 meters for 200-300 bucks.

Bill Hawkins


-Original Message-
From: wa1...@att.net
Sent: Saturday, December 04, 2010 6:57 PM

I wish to survey some of my land here in the US. What used GPS
receivers out there might be good candidates?

I really don't want to haul a Z3801A out in the woods and run a self-
survey unless the cost is too high. :-)


-Brian, WA1ZMS



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Re: [time-nuts] OT [GPS Survey grade RX]

2010-12-04 Thread Bill Hawkins
How accurate do you want the survey to be? What's your budget?

A handheld GPS can give you 3 meters for 200-300 bucks.

Bill Hawkins
 

-Original Message-
From: wa1...@att.net
Sent: Saturday, December 04, 2010 6:57 PM

I wish to survey some of my land here in the US. What used GPS  
receivers out there might be good candidates?

I really don't want to haul a Z3801A out in the woods and run a self- 
survey unless the cost is too high. :-)


-Brian, WA1ZMS



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Re: [time-nuts] time-nuts Digest, Vol 77, Issue 14

2010-12-04 Thread Mark Sims

And any similarity is purely coincidental ;-)  Lady Heather was Lady Ada's 
wicked stepsister,  master of the tight bustier, cracker of the leather whip,  
instiller of heavenly discipline. >> Oh! really? ;)

El 04/12/2010 23:47, Rix Seacord escribió:
> Charles
> I'm not sure it was the source but there is a lady heather charactor 
> on the Los Vegas CSI tv series.
> Toodles
> 
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[time-nuts] OT [GPS Survey grade RX]

2010-12-04 Thread wa1...@att.net
I wish to survey some of my land here in the US. What used GPS  
receivers out there might be good candidates?


I really don't want to haul a Z3801A out in the woods and run a self- 
survey unless the cost is too high. :-)



-Brian, WA1ZMS

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Re: [time-nuts] Lady Heather Wish-list

2010-12-04 Thread Javier Herrero

Oh! really? ;)

El 04/12/2010 23:47, Rix Seacord escribió:

Charles
I'm not sure it was the source but there is a lady heather charactor 
on the Los Vegas CSI tv series.

Toodles

Rix Seacord K2AVP
eseac...@verizon.net

845-628-0892
914-262-9186


On 12/4/2010 5:16 PM, Charles P. Steinmetz wrote:



*I'm still trying to learn who Lady Heather is...or was.*


http://lmgtfy.com/?q=%22lady+heather%22

Best regards,

Charles








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--

Javier HerreroEMAIL: jherr...@hvsistemas.com
Chief Technology Officer
HV Sistemas S.L.  PHONE: +34 949 336 806
Los Charcones, 17 FAX:   +34 949 336 792
19170 El Casar - Guadalajara - Spain  WEB: http://www.hvsistemas.com


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Re: [time-nuts] Lady Heather Wish-list

2010-12-04 Thread John Miles

> I echo Bob's thanks to the authors of this invaluable program.
>
> I like to have the satellite path display to the right of the graph
> panel, but haven't managed to set the configure file to do that
> automatically, and always have to issue the gb and gm commands after
> running the program - have I missed something?

Mark can address this, hopefully.

> I know it has been mentioned before, but I am concerned about the
> program apparently using 100% of CPU time.

As discussed before, it's behaving as intended.  It does not use 100% of the
CPU on an absolute basis; rather, for maximum responsiveness, it will tend
to use most of the CPU time that's left over from other applications.  (You
can run several instances at a time, for example, all connected to the same
TCP server.)

> On my old Toshiba laptop running Windows XP pro (service pack 1), Lady
> Heather beta 3.0 will usually self-quit after about ten days :-(  I
> have several other logging programs (written in BBC BASIC - see
> http://www.cix.co.uk/~rrussell/bbcwin/bbcwin.html) running at the same
> time, but it is only LH which I has disappeared when I return after a
> couple of weeks.  Sorry this is so vague.

Is this true of the current beta, with heather.exe dated June 2, 2010 at
1:41 PM?  There was a bug in the earlier April beta release that could cause
it to run out of stack space under certain conditions.  This could also
contribute to the perception of out-of-control CPU usage.

I updated the .exe in early June as soon as I found the bug, but at the time
I was expecting a new source dump from Mark, so I didn't bother bumping the
version number in the install script.  That is still the case. :)  You may
be able to fix the self-termination behavior with a reinstall.  If not, let
me know offline and we can look into it.

-- john, KE5FX


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[time-nuts] Lady Heather Wish-list

2010-12-04 Thread Mark Sims

You can store the command line options (one per line,  with the "/" in column 
1) in the file HEATHER.CFG   Type '?' and scroll down to the bottom of the help 
window to find where to put the file. Heather will read the .CFG file on 
startup.

You and also store keyboard commands in a .SCR file which can be read either 
from the command line (/r command) or keyboard (r command).  Script files can 
be nested 5 deep.  Again,  you put one keyboard command per line,  with the 
first keystroke in column 1.

Not sure why your unit shuts down after a couple of weeks...  I have had one 
running for several months.

There is a /TW command to put in waits.  It will cut down your CPU usage quite 
a bit.  Try /TW or /TW=## (where ## is typically 10 to 50)  
   
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Re: [time-nuts] Lady Heather Wish-list

2010-12-04 Thread scmcgrath
And on that note recall that the TBolt is a 'Disciplined' oscillator...
Sent from my Verizon Wireless BlackBerry

-Original Message-
From: Rix Seacord 
Sender: time-nuts-boun...@febo.com
Date: Sat, 04 Dec 2010 17:47:33 
To: Discussion of precise time and frequency measurement
Reply-To: Discussion of precise time and frequency measurement

Subject: Re: [time-nuts] Lady Heather Wish-list

Charles
I'm not sure it was the source but there is a lady heather charactor on 
the Los Vegas CSI tv series.
Toodles

Rix Seacord K2AVP
eseac...@verizon.net

845-628-0892
914-262-9186


On 12/4/2010 5:16 PM, Charles P. Steinmetz wrote:
>
>> *I'm still trying to learn who Lady Heather is...or was.*
>
> http://lmgtfy.com/?q=%22lady+heather%22
>
> Best regards,
>
> Charles
>
>
>
>
>
>
>
>
> ___
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>

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Re: [time-nuts] Lady Heather Wish-list

2010-12-04 Thread Peter Vince
I echo Bob's thanks to the authors of this invaluable program.

I like to have the satellite path display to the right of the graph
panel, but haven't managed to set the configure file to do that
automatically, and always have to issue the gb and gm commands after
running the program - have I missed something?

I know it has been mentioned before, but I am concerned about the
program apparently using 100% of CPU time.

On my old Toshiba laptop running Windows XP pro (service pack 1), Lady
Heather beta 3.0 will usually self-quit after about ten days :-(  I
have several other logging programs (written in BBC BASIC - see
http://www.cix.co.uk/~rrussell/bbcwin/bbcwin.html) running at the same
time, but it is only LH which I has disappeared when I return after a
couple of weeks.  Sorry this is so vague.

Peter

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Re: [time-nuts] Lady Heather Wish-list

2010-12-04 Thread Rix Seacord

Charles
I'm not sure it was the source but there is a lady heather charactor on 
the Los Vegas CSI tv series.

Toodles

Rix Seacord K2AVP
eseac...@verizon.net

845-628-0892
914-262-9186


On 12/4/2010 5:16 PM, Charles P. Steinmetz wrote:



*I'm still trying to learn who Lady Heather is...or was.*


http://lmgtfy.com/?q=%22lady+heather%22

Best regards,

Charles








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Re: [time-nuts] Lady Heather Wish-list

2010-12-04 Thread Charles P. Steinmetz



*I'm still trying to learn who Lady Heather is...or was.*


http://lmgtfy.com/?q=%22lady+heather%22

Best regards,

Charles








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Re: [time-nuts] wwvb signal strength

2010-12-04 Thread Stanley Reynolds
Most of the "atomic clocks" update around midnight and don't try again for 24 
hours or so, to save power the receiver is off most of the time. My spectracom 
8165 needs hours of good signal to work. Except for good conditions it is rare 
to keep tracking around local sun rise and sun set.

Stanley



- Original Message 
From: Jim Palfreyman 
To: Discussion of precise time and frequency measurement 
Sent: Sat, December 4, 2010 3:34:45 PM
Subject: Re: [time-nuts] wwvb signal strength

I receive the Japanese low frequency signal here in Tasmania. I get it
on a simple travel clock placed up high on a wooden bookshelf. Still
figuring out which times of the year are best.

Jim

On Sunday, 5 December 2010, Stanley Reynolds  wrote:
> Past week wwvb propagation has been very good here in Alabama may be a good 
>time
> to play with some of your wwvb discipline oscillators.
>
> "Winter is, of course, the time of best ground-wave propagation from WWVB, so
> this is about as good as it’s ever going to get." from link :
>
> http://softsolder.com/2010/01/06/wwvb-reception-quality/
>
> Stanley
>
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Re: [time-nuts] Lady Heather Wish-list

2010-12-04 Thread William H. Fite
*I'm still trying to learn who Lady Heather is...or was.*




On Sat, Dec 4, 2010 at 3:05 PM,  wrote:

> Lady Heather is a tremendous program for working with the Thunderbolt.
>
> As I move things to another machine, I find myself struggling with "just
> what options did I whack to get that display?"
>
> So my wishes for the next (beta) version:
>
> --- keep options in a file that I can move to get the same display
>
> or
>
> -- a command to show what command-line options to use on LH startup to get
> the current display.
>
> Not earthshaking, but would be nice to have.
>
> And my continued thanks to all who have contributed to LH, and to this
> list.
>
> cheers--
>
> bob martin k6rtm
>
>
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Re: [time-nuts] wwvb signal strength

2010-12-04 Thread Jim Palfreyman
I receive the Japanese low frequency signal here in Tasmania. I get it
on a simple travel clock placed up high on a wooden bookshelf. Still
figuring out which times of the year are best.

Jim

On Sunday, 5 December 2010, Stanley Reynolds  wrote:
> Past week wwvb propagation has been very good here in Alabama may be a good 
> time
> to play with some of your wwvb discipline oscillators.
>
> "Winter is, of course, the time of best ground-wave propagation from WWVB, so
> this is about as good as it’s ever going to get." from link :
>
> http://softsolder.com/2010/01/06/wwvb-reception-quality/
>
> Stanley
>
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Re: [time-nuts] OT: End of an Era

2010-12-04 Thread J. Forster
Sad. It was an interesting place. Mostly computers, though.

Best,

-John

=

> The last two steerable dishes at Onizuka AFB (The Blue Cube) in Silicon
> Valley are being disassembled.
>
> One of those local landmarks, highway 237 at Mathilda.
>
> Did anyone see them listed on eBay?
>
> cheers--
>
> Bob Martin K6RTM
>
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>
>



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[time-nuts] Lady Heather Wish-list

2010-12-04 Thread k6rtm
Lady Heather is a tremendous program for working with the Thunderbolt. 

As I move things to another machine, I find myself struggling with "just what 
options did I whack to get that display?" 

So my wishes for the next (beta) version: 

--- keep options in a file that I can move to get the same display 

or 

-- a command to show what command-line options to use on LH startup to get the 
current display. 

Not earthshaking, but would be nice to have. 

And my continued thanks to all who have contributed to LH, and to this list. 

cheers-- 

bob martin k6rtm 


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[time-nuts] OT: End of an Era

2010-12-04 Thread k6rtm
The last two steerable dishes at Onizuka AFB (The Blue Cube) in Silicon Valley 
are being disassembled. 

One of those local landmarks, highway 237 at Mathilda. 

Did anyone see them listed on eBay? 

cheers-- 

Bob Martin K6RTM 

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Re: [time-nuts] Tracor 895a

2010-12-04 Thread GandalfG8
 
In a message dated 04/12/2010 18:11:54 GMT Standard Time, omni...@gmail.com 
 writes:

Anyone  have any experience using this instrument?  What do you think  about
that price?



-
How badly do you want it?:-)
 
If you haven't already found it, there's a  manual available on  Didier's 
site.
 
regards
 
Nigel
GM8PZR
 
 
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Re: [time-nuts] Frequency difference between LPRO-101 and HP 105B

2010-12-04 Thread Magnus Danielson

On 12/04/2010 06:51 PM, ulm...@vaxman.de wrote:

  Dear list members -
being a proud owner of a LRPO-101 as well as a HP 105B and a TRACOR
527E Frequency Difference meter, I decided to compare these two
oscillators with each other after some days of running them.
  The attached plot (if this won't work, you can find it here online:
http://fafner.dyndns.org/~ulmann/30_nov_2010_tracor_small.jpg) shows
the output of the TRACOR 527E (frequency difference, sensitivity set
to 10**11 - this corresponds to a multiplication factor of 10**4
regarding the frequency difference) plotted with an old thermal
plotter - this is just a qualitative plot but the amplitude difference
between the minimum and maximum peaks corresponds to about +/- 1 parts
in 10^-11.
  I would like to hear your opinion about this - does this look
reasonable to you? The inputs to the TRACOR were the 10 MHz output of
the LPRO and the 1 MHz output of the HP 105B - both oscillators were
running for a little bit more than three days without interruption.
  All the best - Bernd. :-)


I notice that there is a repeated pattern (beyond the fact that the 
paper-trace has been scanned in overlapped fashion, which anyone viewing 
it should be aware of...) which I suspect is the due to the daily 
variations. Do notice how it has "quite" and "noisy" periods. In 
addition, there are similarities between these variations, possibly from 
the repeating pattern which the sun presents...


Time-marks in the data would help further analysis. So would the digital 
representation of values. It's booring cause I kind of like these old 
strips of papers, but it becomes a bit hard to use modern processing 
aids... which is possible since storage and processing power is now dirt 
cheap.


Cheers,
Magnus

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[time-nuts] Tracor 895a

2010-12-04 Thread William H. Fite
Gentlemen,

I have an opportunity to pick up locally a Tracor 895a linear phase-time
comparator for $100.  It powers up but I have not otherwise tested it though
seller (a pretty reliable guy here in town) says it functions properly.

Anyone have any experience using this instrument?  What do you think about
that price?

Thanks,

Bill
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[time-nuts] Frequency difference between LPRO-101 and HP 105B

2010-12-04 Thread ulmann
 Dear list members - 
being a proud owner of a LRPO-101 as well as a HP 105B and a TRACOR
527E Frequency Difference meter, I decided to compare these two
oscillators with each other after some days of running them. 
 The attached plot (if this won't work, you can find it here online:
http://fafner.dyndns.org/~ulmann/30_nov_2010_tracor_small.jpg) shows
the output of the TRACOR 527E (frequency difference, sensitivity set
to 10**11 - this corresponds to a multiplication factor of 10**4
regarding the frequency difference) plotted with an old thermal
plotter - this is just a qualitative plot but the amplitude difference
between the minimum and maximum peaks corresponds to about +/- 1 parts
in 10^-11. 
 I would like to hear your opinion about this - does this look
reasonable to you? The inputs to the TRACOR were the 10 MHz output of
the LPRO and the 1 MHz output of the HP 105B - both oscillators were
running for a little bit more than three days without interruption.
 All the best - Bernd. :-)
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[time-nuts] wwvb signal strength

2010-12-04 Thread Stanley Reynolds
Past week wwvb propagation has been very good here in Alabama may be a good 
time 
to play with some of your wwvb discipline oscillators.

"Winter is, of course, the time of best ground-wave propagation from WWVB, so 
this is about as good as it’s ever going to get." from link :

http://softsolder.com/2010/01/06/wwvb-reception-quality/

Stanley

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[time-nuts] SVeeSix manual -- was Re: Another GPS .. this is a true boatanchor

2010-12-04 Thread GandalfG8
 
In a message dated 03/12/2010 23:23:18 GMT Standard Time,  
cadbl...@hotmail.com writes:

Hi Pete,  
you missed my post above.
The manual for the SVeeSix can be found  here
http://www.ko4bb.com/cgi-bin/manuals.pl?dir=05%29_GPS_Timing/Trimble





Hi Ian
 
Although quite useful that's only part of the SVeeSix  manual.
 
I've been looking for a complete manual for some time, Rapco used them in  
their 1804 GPS standard, but they seem to be in the "hen's teeth" section  
of the library.
 
There's a full manual for the SVeeEight on the Trimble ftp site so with  
that and the partial SVeeSix manual there's enough info available to get  by 
but if anyone has a complete SVeeSix manual lurking anywhere  I'd also be 
interested in a scan or copy.
 
regards
 
Nigel
GM8PZR
 
 
 
 
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