Yes, build three and compare them but your comparator has to have a very
low noise floor. I think that in addition to building new higher precision
clocks you need to build new lower noise TI counters.
On Sun, Mar 11, 2012 at 1:10 AM, Jim Lux jim...@earthlink.net wrote:
On 3/10/12 2:42 PM,
Lovely stuff!!
Rob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Pete Lancashire
Sent: 11 March 2012 17:56
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Three HP oldies
101A
Hi Joe,
Just found this link:-
http://home.catv.ne.jp/ff/y226/1/1-12/PhaseCompalator/sub1-12-PhaseComparato
r.htm#1201B
1201A B similar. I think it was only cosmetic changes.
Hope useful.
Rob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
On 3/12/12 2:20 AM, Azelio Boriani wrote:
Yes, build three and compare them but your comparator has to have a very
low noise floor. I think that in addition to building new higher precision
clocks you need to build new lower noise TI counters.
This is part of the thrill (or frustration) of
I'll second that Rob!
I have the HP 115BR and, what I believe to be a British version made for the
Royal Navy by McMichael. Pictured here:
http://www.flickr.com/photos/75ohm/6829984174/
and here
http://www.flickr.com/photos/75ohm/6976111697/
Called a 'Clock Direct Reading' carrying NSN
Other then the damage to the 1 rev per second wheel it looks like will
not take much to clean up. My corrent idea
is to start off with making a replacement on a laser printer and once
I'm comfortable with how it looks have a few scales made on
photographic paper. One discount retailer here in the
Just a note about jpg files, they are intentionally
fuzzed as the Japanese Photo Experts Group
concept is in the interest of visual art. So if you
make a jpg of a schematic much of it will not be
readable. Try Graphics Interchange Format gif
to preserve computer generated details like lines
and
Just a note about jpg files, they are intentionally
fuzzed as the Japanese Photo Experts Group
concept is in the interest of visual art.
s/Japanese/Joint/
So if you
make a jpg of a schematic much of it will not be
readable. Try Graphics Interchange Format gif
to preserve computer generated
In message 4f5e2d68.4010...@comcast.net, Greg Broburg writes:
Just a note about jpg files, they are intentionally
fuzzed as the Japanese Photo Experts Group
concept is in the interest of visual art. So if you
make a jpg of a schematic much of it will not be
readable. Try Graphics Interchange
This is very interesting: I think you have a precision local clock source
to accept a slowly varying input frequency and clean it for the
transmission so that it is the clock source that ultimately dominates the
output stability.
On Mon, Mar 12, 2012 at 2:24 PM, Jim Lux jim...@earthlink.net
A minor nit...
It's Joint Photographic Experts Group -- not Japanese. Designed
__specifically__ for continuous tone color photographs. It was never
intended for line drawings and will fail miserably with them.
http://en.wikipedia.org/wiki/JPEG
My local Costco can also handle TIFF files which
semif...@comcast.net said:
Or if it is all text, the postscript file system is very good, it allows
control of the entire page formatting in preservation of accurate
alignments.
Postscript also does lines and circles and ...
Usually it gets (much) better results with text than you get from
Do I know !! I've only been able to convince one Costco that the
equipment they have can take
tiff's and a few other formats. The other is to get them not to crop.
When critical there are other
shops but the price per print is much more. I guess consumer vs
commercial customer
and volume.
On
Comments
gif is much better than jpg
It is normal to calibrate the print driver so that the
accuracy is very good. If you put a ruler up on a
printed 1 inch line and see that it is significantly
off then the driver needs to be calibrated.
Greg
On 3/12/2012 1:23 PM, Hal Murray wrote:
On 03/10/2012 04:44 PM, Mark Spencer wrote:
I've done this as well.
I daisy chained several pieces of hp and marconi gear together that all had an
approx 1k ohm input impedance for the frequency reference and fed them from a
single 10 Mhz source via t connectors with a 50 ohm terminator at
What, if any, are the phase changes?
On Mon, Mar 12, 2012 at 5:39 PM, Chuck Forsberg WA7KGX N2469R
c...@omen.comwrote:
On 03/10/2012 04:44 PM, Mark Spencer wrote:
I've done this as well.
I daisy chained several pieces of hp and marconi gear together that all
had an approx 1k ohm input
Also the effect was not observed when the same gpsdo was fed directly into the
5370 and the same equipment was power cycled. Sorry it's been long day
wrestling with network clocking issues at the office (:
Sent from my iPod
On 2012-03-12, at 7:37 PM, Mark Spencer mspencer12...@yahoo.ca
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