[time-nuts] HP 53132A ROM issue

2016-12-27 Thread Colin Bradley via time-nuts
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

[time-nuts] Efratom MFS-209 conversion information.

2016-09-27 Thread Colin Bradley via time-nuts
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

[time-nuts] IEEE papers

2007-06-14 Thread Colin Bradley
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

[time-nuts] Measuring clocks & watches

2007-05-26 Thread Colin Bradley
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

[time-nuts] History of Quartz radio crystals

2007-04-28 Thread Colin Bradley
In my wanderings, I ran across this interesting history of the quartz crystal industry. http://www.ieee-uffc.org/fc_history/bottom.html Colin __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _

[time-nuts] SMB-F to SMA-F Cable

2007-04-24 Thread Colin Bradley
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 __ Do You Yahoo!? Tired of spam?

Re: [time-nuts] time-nuts Digest, Vol 33, Issue 75

2007-04-23 Thread Colin Bradley
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

[time-nuts] GPS: ADEV or MDEV? (Tom Van Baak)

2007-04-23 Thread Colin Bradley
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

Re: [time-nuts] time-nuts Digest, Vol 33, Issue 3

2007-04-01 Thread Colin Bradley
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

[time-nuts] HP-58532A antenna

2007-03-15 Thread Colin Bradley
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

[time-nuts] Thunderbolt

2007-03-03 Thread Colin Bradley
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

[time-nuts] HP 5087A manual

2007-03-03 Thread Colin Bradley
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

[time-nuts] Thunderbolt list

2007-02-17 Thread Colin Bradley
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

[time-nuts] Thunderbolt purchase list

2007-02-15 Thread Colin Bradley
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

[time-nuts] Thunderbolt TPP list

2007-02-14 Thread Colin Bradley
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

[time-nuts] Thunderbolt Purchase Person's list

2007-02-14 Thread Colin Bradley
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

[time-nuts] Thunderbolt List

2007-02-14 Thread Colin Bradley
There is the latest Thunderbolt Purchase Persons list. Colin Bradley [EMAIL PROTECTED] 3 units Didier Juges [EMAIL PROTECTED] 1 unit Robert E. Martinson

[time-nuts] Thunderbolt list

2007-02-13 Thread Colin Bradley
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

[time-nuts] Thunderbolt

2007-02-13 Thread Colin Bradley
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

[time-nuts] Thunderbolt

2007-02-13 Thread Colin Bradley
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

[time-nuts] Thunderbolt GPSDO

2007-02-11 Thread Colin Bradley
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

[time-nuts] FTS-1050A

2007-02-11 Thread Colin Bradley
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

[time-nuts] HP 58517A Distribution Amp

2007-01-23 Thread Colin Bradley
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

[time-nuts] HP 5345A

2006-12-29 Thread Colin Bradley
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 __

[time-nuts] HP 5345A

2006-12-29 Thread Colin Bradley
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 ___

[time-nuts] HP 5334 oscillator performance

2006-12-07 Thread Colin Bradley
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

[time-nuts] FMT

2006-11-17 Thread Colin Bradley
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 _

[time-nuts] FMT

2006-11-15 Thread Colin Bradley
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

[time-nuts] Austron 6016

2006-11-12 Thread Colin Bradley
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

[time-nuts] FMT

2006-11-10 Thread Colin Bradley
. Colin Bradley ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

[time-nuts] HP-8642A

2006-11-04 Thread Colin Bradley
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

[time-nuts] Ball/Efratom FRK-L manual.

2006-10-20 Thread Colin Bradley
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] ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/li

[time-nuts] (no subject)

2006-10-18 Thread Colin Bradley
. 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