I recently acquired an older HP 53132A frequency counter offeBay. It did not
come equipped with an option oscillator. The standaloneperformance of the
existing oscillator is extraordinarily poor although thecounter works well
running off my house standard. I decided to update theversion 3703 m
I just received an Efratom MFS-209 GPSDO that I purchased onEbay. Everything
appears to work. The only manual that I found online is forthe MGPS controller.
The MFS family apparently came in many different flavors allowing the customer
to mix andmatch the components that best suited their needs
I have also experienced the frustration of trying to download IEEE papers. I
am a member of IEEE along with two of their affiliated societies and still get
the same run-around. There are two techniques that I have found helpful. 1) Try
searching for the paper, by name, and you can frequently fi
I ran across an interesting place devoted to the measurement of clock and watch
performance.
http://www.bmumford.com/mset/access/access.html
Colin
You
snooze, you lose. Get messages ASAP with AutoCheck
i
In my wanderings, I ran across this interesting history of the quartz crystal
industry.
http://www.ieee-uffc.org/fc_history/bottom.html
Colin
__
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Hi Jason: I just bought 5 SMB-F to BNC connectors on eBay from a guy in
Rochester NY. He had many different cables with many different connector
combinations. Search eBay for "SMB connectors" or "SMB cables"
Colin
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Message: 9
Date: Mon, 23 Apr 2007 16:25:27 -0700
From: Brooke Clarke <[EMAIL PROTECTED]>
Subject: Re: [time-nuts] GPS: ADEV or MDEV? (Tom Van Baak)
To: Discussion of precise time and frequency measurement
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii; format=flowed
My 3458A can make measurements down to the 10nV level. At 7 1/2 digits it can
do 60 readings
a second. At 8 1/2 digits it slows down to 6 readings a second. The real
question is the frequency
of the noise. I have yet to interface it to HP-IB bus. I have several Z3801's I
could try it on.
Colin
When the Indiana State Legislature tried to make Pi = to 3.000
http://www.inwit.com/inwit/writings/indianapilaw.html
Colin
Message: 1
Date: Sun, 01 Apr 2007 17:20:09 +
From: "Poul-Henning Kamp" <[EMAIL PROTECTED]>
Subject: Re: [time-nuts] Ultra low phase noise floor measurement
system
I just purchased a GPS antenna on eBay that was listed as an HP-58532A. It does
not have the look or dimensions of the 58532A. It is marked as a Lucent
KS-24019L112A. The case is marked with 26dB gain and comes with a type N
connector. The seller is accelium. Does anyone know if this is in fact
The power supply for the Thunderbolt should not be a showstopper. The manual
spec states that
the board needs +12vdc @ 750ma max and -12vdc @ 10ma with ripple at 75mV P-P.
The rest of the board needs +5vdc @ 400ma with ripple a spec of 50mV P-P, which
is a mid quality power supply. Lab supplies
John: Check the Agilent web site at
http://www.home.agilent.com/agilent/techSupport.jspx?pid=101384%3Aepsg%3Apro&pageMode=MN&cc=US&lc=eng
for a pdf of the 5087A manual.
Colin
TV dinner still cooling?
Ch
y are +12vdc @750ma max, +5vdc @400ma max and -12vdc
@10ma. The power is applied through
a 6 pin connector located on the bottom of the board near the left rear corner.
Here is the latest list
of persons interested in a group purchase. The list has been stable for the
last two days.
Colin Br
There is the latest list of persons interested in a group Thunderbolt purchase.
The total is approximately 60 units.
Colin
Colin Bradley [EMAIL PROTECTED]
3 units
Didier Juges [EMAIL PROTECTED
Here is the latest Thunderbolt list of interested purchasers. The list is now
in the mid 50's.
Colin Bradley [EMAIL PROTECTED]
3 units
Didier Juges [EMAIL PROT
Here is the latest Thunderbolt purchase list. It is now near 40 units.
Colin Bradley [EMAIL PROTECTED]
3 units
Didier Juges [EMAIL PROTECTED]
1 unit
Robert E. Martinson
There is the latest Thunderbolt Purchase Persons list.
Colin Bradley [EMAIL PROTECTED]
3 units
Didier Juges [EMAIL PROTECTED]
1 unit
Robert E. Martinson
The latest list of interested Thunderbolt Purchase Persons (TPP's).
Colin Bradley [EMAIL PROTECTED]
3 units
Didier Juges [EMAIL PROTECTED]
1 unit
Robert E. Mart
Here is the updated list of persons who have expressed an interest is the
Thunderbolt group purchase.
Colin Bradley [EMAIL PROTECTED]
3 units
Didier Juges [EMAIL PROTECTED
The following is a list of the people who have expressed an interest in the
Thunderbolt.
Colin Bradley [EMAIL PROTECTED] 3 units
Robert E. Martinson [EMAIL PROTECTED] 1 unit
John Miles [EMAIL PROTECTED] 1 or 2 units Hal Murray [EMAIL PROTECTED] 1 unit
Said Jackson [EMAIL PROTECTED] 1 unit
Scott
As previously proposed, I would be interested in a multiple purchase of a
Trimble Thunderbolt GPSDO now listed on eBay. This version requires +- 12vdc &
+5vdc. A reasonable supply for these voltages is available from MPJA for $5.95.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=014&sspagenam
John:
Here is a link to Symmetricon that describes the internal battery, option 002,
for your unit. You may already have this manual.
Colin
http://www.symmetricom.com/support/download_manual.aspx?DocID=723
Do
Would anyone have a pdf or link for the manual on the HP 58517A L1 distribution
amplifier?
Colin Bradley
Need a quick answer? Get one in minutes from people who know.
Ask your question on
In looking at the manual for the 5334A/B, the oscillator support board has a
trimmer (R5) that could be used for EFC control of the 10811A. Too bad that HP
did not use EFC (or an internal FINE control) to set frequency on this great
unit in more of there instruments
Colin
__
I just picked up a 5345A from eBay. This unit has a 10811 oscillator instead of
the 10544 depicted in the manuals I have. The serial number has been removed.
Does anyone know if there is an EFC adjustment for this counter or is the
course control the only way of setting frequency?
Colin
___
I recently took one of my 5334A’s off of the house standard to lend to a
friend. I thought it a good idea to check the onboard oscillator before lending
it out. Both of my 5334A’s lack Opt 10 oscillators. This particular unit was
almost 40Hz high in frequency. I tried to set it to frequency and
I did not hear a peep out of the 40 meter Bay Area station in Boulder,
Colorado. It may have been the result of the time of day. I did receive the 80
meter and 40 meter ARRL signals from the East Coast. No luck at all on 160
meters.
Colin
_
I received the following email from the station manager of W1AW.
Hi Colin,
I didn't want to answer your question too soon.
On the days prior to the FMT, I conduct measurements at 1 hour, 3 and 6 hours
after initial warm-up. (And of course, this time frame includes the normal
broadcast sched
Brian: I would suggest that you contact Carla at yourmanualsource.com. She has
a copy of the manual for the Austron 6016 that she will rent to you for $25 per
week. A quick trip to Kinko’s and you should be able to copy the whole thing
for about another $10.
Colin Bradley
.
Colin Bradley
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Doug you might check
http://cp.literature.agilent.com/litweb/pdf/08642-90224.pdf for a copy of the
operating and calibration manual for the 8642A. There are probably some other
sources of free manuals on the internet. I have had problems with the various
Agilent servers of late, so be patient i
Would anyone in the group know where I might obtain a manual for the Efratom
FRK-L Rubidium Oscillator? I checked eBay but found no listings. Thanks [EMAIL
PROTECTED]
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. Recent measurements of W1AW showed
that their signals are weak at 1700 miles. The Bay area on the west coast is
about 1100 miles. Boulder is not ideally situated for either location. Good for
WWV or WWVB however! The FMT should be fun.
Colin Bradley WA2YUN
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