Gerard,
Gerard PG5G wrote:
I have had a few replies, both on list and off list, including some
offers for help and some suggestions regarding the capabilities of my
counter. Thanks to everyone who took the time to write.
I understand from various replies I had that I cannot measure ADEV the
Hi
I checked a few newer RPD-1's (actually MPD-1's, but I believe they are the
same thing). The two ones I have here from who knows where have about 20% more
output (2.4 V p-p) than a typical unit (2.0 V p-p).
Bob
On Mar 3, 2010, at 10:56 PM, Bruce Griffiths wrote:
Whilst your corrected
I did the replacement degausser you found the zip file for. I use it for
my 5061s quite successfully.
It fairly closely duplicates the time and current profiles used by the
original.
If you have any questions, please ask.
Bill Ezell
--
They said 'Windows or better'
so I used Linux.
Perhaps they changed the diodes used in MPD/RPD phase detectors over the
years.
Minicircuits also make a ZP10514 which may use monolithic quad diodes.
These may be noisier at 100Hz offset than the genuine HP10514.
Bruce
Bob Camp wrote:
Hi
I checked a few newer RPD-1's (actually MPD-1's,
I`m not sure that questions like these is welcome on this list, but here goes
anyway :
1/ What are the the 10 sources of the most constant [invariant] frequencies
known to man, in order of decreacing constancy? Four immediately come to mind.
2/ What is the mechanism in an oscillator, that is
So many people think antennas are ugly
Its in the eye of the beholder
And the creativity of the person taking the pix
Really nicely done.
On Tue, Mar 2, 2010 at 7:40 AM, Bob Camp li...@rtty.us wrote:
Hi
I wonder if the no antennas covenants on my lot cover one of those
modern sculptures ?
Hi
The best answer to the second one is That depends. There are *lots* of
different oscillators out there. Earth - sun, Helium atom floating in space
...
Bob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Don Collie jnr
Sent:
Hi
Looks a lot like what they do in most of their packaged mixers. Standard
product, a PCB, and a housing.
Bob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of ewkeh...@aol.com
Sent: Thursday, March 04, 2010 8:16 AM
To:
1/ There are no sources of constant frequency. Approximations to that
goal may be measured by their cost.
2/ There is no single mechanism, unless it's quantum mechanics.
Bill Hawkins
This message has been fact checked by a 9 year old with a Twitter account.
-Original Message-
From:
I`m not sure that questions like these is welcome on this list, but here goes
anyway :
1/ What are the the 10 sources of the most constant [invariant] frequencies known to man, in order of decreacing
constancy? Four immediately come to mind.
2/ What is the mechanism in an oscillator, that is
Hi Tom:
In the last slide you show a sand timer. Do you have accuracy data for it?
Have Fun,
Brooke Clarke
http://www.PRC68.com
Tom Van Baak wrote:
I`m not sure that questions like these is welcome on this list, but
here goes anyway :
1/ What are the the 10 sources of the most constant
time-nuts-boun...@febo.com wrote on 03/03/2010 10:56:46 PM:
From:
Bruce Griffiths bruce.griffi...@xtra.co.nz
To:
Discussion of precise time and frequency measurement
time-nuts@febo.com
Date:
03/03/2010 11:03 PM
Subject:
Re: [time-nuts] DMTD Mixer Terminations
Sent by:
The specifications for the maximum output given on the datasheet are so
wide that the 20% higher than typical beat frequency amplitude may well
be within spec.
The RPD-1's were being over driven by about 2.5dBm or so, which would
also tend to increase the output.
A test made with 500 ohms to
HI
In other words the hard part of the task still remains to be done.
Bob
On Mar 4, 2010, at 4:45 PM, Bruce Griffiths wrote:
The specifications for the maximum output given on the datasheet are so wide
that the 20% higher than typical beat frequency amplitude may well be within
spec.
Hello Bruce,
I tried to send you an email directly, but your spam filtering seems to be
getting in the way again.
Ebay item 150418469678 has a Magellan 5000 GPS board on it... might be handy
to have a spare for your unit. It is from an Odetics unit.
Mark
the instructions there.
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signature database 4916 (20100304) __
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner Head Hardware Heavy,
Blue Feather Technologies
In the last slide you show a sand timer. Do you have accuracy data for it?
Hi Brooke,
The past 3 hours the one hour timer measures 56:24,
56:19, and 56:30. That's at 67 F room temp. Somewhere
I have enough clean data to compute the ADEV; it's more
stable than accurate.
It also has a tempco
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