Re: [time-nuts] Setting Windows XP clock.

2014-07-12 Thread Dave M
-c.timefreq.bldrdoc.gov The time date gets automatically updated once a day. You can always open this window and click the Update Now button to get an immediate update. This should keep your clock on time. Cheers, Dave M time-nuts-requ...@febo.com Message: 3 Date: Sat, 12 Jul 2014 18:29:37

Re: [time-nuts] HP5370 extender cards?

2014-08-14 Thread Dave M
Count me in!! Approx how long should they be ready to ship after you decide to proceed with the order? I can prepay if necessary. Thanks!! Dave M From: Mark Sims hol...@hotmail.com Well, after doing my TM500 extender cables, I was thinking of doing an extender board for the HP5370 boards

[time-nuts] EFC info on Trimble 34310-T OXCO

2014-08-22 Thread Dave M
receivers (T, T2 and Oak)? Thanks for some insight, Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

Re: [time-nuts] time-nuts Digest, Vol 121, Issue 65

2014-08-23 Thread Dave M
the EFC input? Thanks, Dave M Message: 5 Date: Fri, 22 Aug 2014 16:19:45 -0600 From: Ed Palmer ed_pal...@sasktel.net To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] EFC info on Trimble 34310-T OXCO Message-ID: 53f7c201.5070...@sasktel.net

Re: [time-nuts] EFC info on Trimble 34310-T OXCO

2014-08-24 Thread Dave M
Hi Dave, On 8/23/2014 3:51 PM, Dave M wrote: Thanks for that suggestion, Ed. After a bit of reading in the X72 Reference Guide, it appears that the X72 does have a 1PPS input. That would be considerably easier than trying to interface the Rb into the GPSDO. Still trying to understand what

Re: [time-nuts] EFC info on Trimble 34310-T OXCO

2014-08-25 Thread Dave M
know of any Rb units that can be programmed to a 24 hr (or longer) Tau, either by EFC or 1PPS input? Dave M Bob Camp wrote: Hi It is not what is done in the Efratom Rb’s. Their pps input is set up to get things on frequency / on time quickly. The assumption is that you plug it into a pps to get

Re: [time-nuts] EFC info on Trimble 34310-T OXCO

2014-08-25 Thread Dave M
, Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

Re: [time-nuts] Practical Survey-In Accuracy?

2014-08-28 Thread Dave M
. How far above the metal roof should I mount the antenna so reflections will be minimized, at least to the point of diminishing returns? The antenna will have a pretty good view of the sky from that location. Any other issues that I should be aware of when dealing with a metal roof? Thanks, Dave

Re: [time-nuts] Have some Leica/AeroAntenna Tech Inc Choke Ringantennas for sale

2014-09-13 Thread Dave M
I'll speak for one of the antennas... Shipping will be to zip code 35750. Let me know the cost and I'll pay immediately. How do you prefer to get payment? Paypal is good for me, or personal check if you desire. dave M Pete Lancashire wrote: I've acquired a few new in the box Leica

[time-nuts] WTB: GPS Antenna Splitter

2014-10-06 Thread Dave M
a receiver from one antenna to the other? Will the GPS notice the difference and want to do another survey? Thanks for your comments. Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman

Re: [time-nuts] WTB: GPS Antenna Splitter

2014-10-08 Thread Dave M
an active antenna connected (no passive antennas allowed), but no specs in the manual on antenna current limits. I guess I could substitute an active load (transistor or FET) for the antenna so I can vary the current drawn, and see what alarms pop up. Thanks for more info, Dave M Tim Shoppa wrote

Re: [time-nuts] WTB: GPS Antenna Splitter

2014-10-08 Thread Dave M
, and I'll admit that I haven't read it all, but there's just not enough time in a day, and my eyes can't stand the strain to read everything. Point me in the right direction and I'll take it from there. Thanks!! Dave M Bob Camp wrote: Hi You might want to check the spacing spec’s

Re: [time-nuts] WTB: GPS Antenna Splitter

2014-10-08 Thread Dave M
another survey when I switch them around. As an alternative, I could enter the antenna coordinated manually into each GPS when I switch antennas. That should avoid a new survey each time. Then, the distance between the antennas shouldn't matter. Thanks for the info!! Dave M Bob Camp wrote: Hi

Re: [time-nuts] WTB: GPS Antenna Splitter

2014-10-08 Thread Dave M
short (about 15 ft of RG-223 from each antenna). There should still be adequate signal available at the receivers, even with the passive splitters. Cheers, Dave M John C. Westmoreland, P.E. wrote: Dave, Can you please let us know what you go with for your splitter choice? I noticed companies

Re: [time-nuts] WTB: GPS Antenna Splitter

2014-10-08 Thread Dave M
Thanks for that link, Brooke. I might give that a try, just because it's so cheap. I'll need a couple bias tees to get power to the antennas, regardless of which splitter devices that I settle on. Cheers, Dave M Brooke Clarke wrote: Hi: This works great and has minimal cost. http

Re: [time-nuts] WTB: GPS Antenna Splitter

2014-10-15 Thread Dave M
Pete, I see a ZAPD-30 on the miniCircuits web site. Might those be the models that you have? If so, (and assuming that you can find them), how much for a couple? Thanks, Dave M Peter Loron wrote: Dave, I think I have a MiniCircuits ZAPD-3(?) splitter or two kicking around. I'll try to get

[time-nuts] Lightning arrestors for GPSDO antenna

2014-10-16 Thread Dave M
, etc. I'm interested in opinions and experiences with arrestors and recommendations for which type is most effective. Thanks for comments, Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman

Re: [time-nuts] Lightning arrestors for GPSDO antenna

2014-10-16 Thread Dave M
that state that metal conduit is the best way, and others stating that metal conduit shouldn't be used Anyone have a good answer (talking about antenna feedline; not the grounding wire)? Thanks, Dave M --- Chris Albertson

Re: [time-nuts] Lightning arrestors for GPSDO antenna

2014-10-18 Thread Dave M
Chris Albertson wrote: On Thu, Oct 16, 2014 at 7:51 PM, Dave M dgmin...@mediacombb.net wrote: Thanks, Chris. I've done a bit or research on the subject, and think I have a reasonable grip on the necessary steps. I have an 8' ground rod driven into the ground directly under the spot where my

Re: [time-nuts] Lightning arrestors for GPSDO antenna

2014-10-18 Thread Dave M
John Allen wrote: Hello All - There is a 500+ page document on grounding, lightning protection and more - Google for: STANDARDS AND GUIDELINES FOR COMMUNICATION SITES Motorola R56 2005 Regards, John K1AE Great document! Thanks for the link Dave M

Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812A GPSDO system

2014-10-20 Thread Dave M
, Dave M Stewart Cobb wrote: Fellow time-nuts, This (long) post is a review of the HP/Symmetricom Z3810A (or Z3810AS) GPSDO system built for Lucent circa 2000. I wrote it because I looked for more information before I bought one, and couldn't find much. It's relevant because (as of this writing

Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812A GPSDO system

2014-10-20 Thread Dave M
Arg! I read the whole article on the mod but just didn't see the ruler. Oops! Thanks for the alert, Dave M Anthony Roby wrote: In the link below there's a photo of one of the units with a ruler against it - 11 wide. Anthony -Original Message- From: time-nuts [mailto:time-nuts

[time-nuts] Some specs for MTI Millren 260 OXCOs

2014-10-22 Thread Dave M
: -100 @ 1Hz -130 @ 10Hz -145 @ 100Hz -150 @ 1KHz -155 @ 10KHz -155 @ 100KHz Also, the 260-0544C 260-0544-C 5 MHz, SC-cut crystal, 3rd overtone, 2E-10 over -30 to +70C Phase Noise spec: -110 @ 1Hz -140 @ 10Hz -150 @ 100Hz -157 @ 1KHz -160 @ 10KHz -160 @ 100KHz Cheers, Dave M

[time-nuts] Z38xx rack mounts

2014-10-22 Thread Dave M
one (assuming that it doesn't approximate the cost of a new SUV). Cheers, Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

Re: [time-nuts] Some specs for MTI Millren 260 OXCOs

2014-10-22 Thread Dave M
Alexander Pummer wrote: On 10/22/2014 1:57 PM, Scott Newell wrote: At 03:43 PM 10/22/2014, Dave M wrote: Content-Transfer-Encoding: 7bit I contacted one of the MTI Milliren marketing guys a few days ago, and got some specs on the MTI model 260-0624C and 260-0544C OXCOs that are currently

Re: [time-nuts] Z38xx rack mounts

2014-10-22 Thread Dave M
Mike S wrote: On 10/22/2014 4:44 PM, Dave M wrote: The Z38xx units are 11 wide (10-9/16 mounting centers) , and obviously are not suitable for a standard 19 rack cabinet. The Nortel GPSR (aka HP z3801a) was mounted vertically in a chassis which was itself rack mounted. It's 11 tall, not wide

Re: [time-nuts] Some specs for MTI Millren 260 OXCOs

2014-10-22 Thread Dave M
Scott Newell wrote: At 03:43 PM 10/22/2014, Dave M wrote: Content-Transfer-Encoding: 7bit I contacted one of the MTI Milliren marketing guys a few days ago, and got some specs on the MTI model 260-0624C and 260-0544C OXCOs that are currently Be careful. I bought a couple of those $15 MTI 260

Re: [time-nuts] HP 5300B - HP 5308A Counter Time Base Question...

2014-11-01 Thread Dave M
for both the 5300A and the 5309A are on the Keysight web site at http://www.keysight.com/main/facet.jspx?t=79910.g.3cc=USlc=engsm=gno=0 Cheers, Dave M Burt I. Weiner wrote: I was recently given a HP-5300B / 5308A counter. I thought it might be handy when I'm at an AM broadcast transmitter

Re: [time-nuts] UPDATE: HP 5300B - HP 5308A Counter Time Base...

2014-11-01 Thread Dave M
very warm, of course, and there won't be any oven control circuitry. Is there an HP part number on the oscillator module? Cheers, Dave M. Burt I. Weiner wrote: The closest it will adjust is -2.5 Hz of 10. MHz. This unit differs from the one in the manual in that it has a Microsonics

Re: [time-nuts] Quad Driven Mixer 5 to 10 MHz Doubler Atricle

2014-11-12 Thread Dave M
in the year 2011 listings, filename 3x11_Roos.zip titled Converting a Vintage 5 MHz Frequency Standard to 10 MHz with a Low Spurious Frequency Doubler Dave M John C. Roos via time-nuts wrote: Several list members contacted me expressing interest in the article. None of them were able to download much

Re: [time-nuts] Quad Driven Mixer 5 to 10 MHz Doubler Article

2014-11-12 Thread Dave M
the level up to a usable level should get you a fairly clean 10 MHz. Dave M Brian, WA1ZMS wrote: Gentlemen- I have my paper copy in front of me with the original article. I am not certain that I can just scan it and send it around due to ARRL Author copyright matters. But I am willing to scan

Re: [time-nuts] ks... answers The emails are getting long

2014-11-19 Thread Dave M
I think those devices were in the same databook that had a page in the back of the book, containing only the text This page is as blank as a salesman's memory The person who did the final editing on that issue had a rare sense of humor. Dave M Dave Daniel wrote: I remember the Fast

Re: [time-nuts] HP 5342A (18 GHz) vs 5352B (40 GHz) frequency counters

2014-11-21 Thread Dave M
Dr. Kirby, The 5242A Option 001 (high stability) used a 10544 oscillator, which. IIRC, is electrically interchangeable with the 10811. The 5352B Option 010 (high stability) uses the 10811 oscillator. Cheers, Dave M Dr. David Kirkby (Kirkby Microwave Ltd) wrote: I am looking for a microwave

Re: [time-nuts] Lucent KS-24361 Simple Doubler

2014-11-25 Thread Dave M
easily buy ten at a time. Even with shipping, they are cheaper than buying from the Chinese Ebay sellers. Dave M paul swed wrote: Looks simple but trying to order 1 piece seems a challenge. Minicircuits wants 10 or $59. Not bad but don't need 10 :-) Regards Paul WB8TSL On Tue, Nov 25, 2014 at 6:08

Re: [time-nuts] Lucent KS-24361 Simple Doubler

2014-11-25 Thread Dave M
Paul, there's a list of sales office contacts (depending on your location) at http://www.minicircuits.com/contact/na_sales_reps.html (assuming that you're in North America; if not, go to the International offices link). Dave M paul swed wrote: Dave call?? I don't see a #. I have skype so

Re: [time-nuts] Ultra Low Phase Noise 5 to 10 MHz Frequency Doubler

2013-02-05 Thread Dave M
) of these doublers. Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

Re: [time-nuts] AN/URQ-10A

2013-04-26 Thread Dave M
://www.auctiondose.com/detail_product/121069053683/frequency_standard/, which seems to be another auction site. Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Re: [time-nuts] AN/URQ-10A

2013-04-26 Thread Dave M
OOPsss Never mind. That acution is long gone. Sorry for the false alarm. Dave M Dave M wrote: To all, I acquired a AN/URQ-10A frequency standard which appears to have received little or no service since its birth. There are no signs of ever being mounted in its mating rack

Re: [time-nuts] Distribution amps for Thub=nderbolt and David partridges divider box?

2013-05-19 Thread Dave M
option is not a detriment... the sync channel can be used for TTL level signals., whereas the normal channels are for low-level signals (0.3 - 1.5 VPP). Just curious, how much is this unit being offered to you for? Cheers, Dave M 19/05/2013 17:27 Hi Dave, I saw them on Ebay after a friend sent

Re: [time-nuts] Making a HP 10811 better

2010-03-30 Thread Dave M
Date: Wed, 31 Mar 2010 01:12:25 +1300 From: Steve Rooke sar10...@gmail.com Subject: Re: [time-nuts] Making a HP 10811 better To: Discussion of precise time and frequency measurement time-nuts@febo.com Message-ID: 1231b6a81003300512k6017afa5lbef5ad3da96e6...@mail.gmail.com Content-Type:

Re: [time-nuts] time-nuts Digest, Vol 68, Issue 177

2010-03-31 Thread Dave M
was another place in the south side of Chicago that I used to love to stroll through while I was stationed at the Naval training Center in Great Lakes, Ill. Can't recall the name of the place, but seems like it was on South Western Way. They had a boat load of surplus military gear. Cheers, Dave M

Re: [time-nuts] time-nuts Digest, Vol 69, Issue 17

2010-04-08 Thread Dave M
Date: Thu, 8 Apr 2010 11:22:58 -0700 From: Rick Karlquist rich...@karlquist.com Subject: Re: [time-nuts] Yukon Energy causes time sync problems To: Discussion of precise time and frequency measurement time-nuts@febo.com Message-ID: 8170b7918c354c3b04336780ecfbc25e.squir...@webmail.sonic.net

Re: [time-nuts] Inexpensive source of HP-10811's and HP-10544's

2010-08-18 Thread Dave M
Date: Wed, 18 Aug 2010 16:21:20 -0500 From: Brian Kirby kilodelta4foxm...@gmail.com Fair Radio Sales have these units at a consistent price...Look on the test equipment page for frequency counters - I believe they are at the bottom of the page. Brian - KD4FM On 8/18/2010 3:19 PM, Bob Bownes

[time-nuts] Re Phil's Fluke Monotronics equipment

2008-08-28 Thread Dave M
be interested in getting a copy. I'd like to check it out, fix it if necessary and sell to somebody who needs it. -- Dave M MasonDG44 at comcast dot net (Just substitute the appropriate characters in the address) Life is like a roll of toilet paper; the closer it gets to the end, the faster

Re: [time-nuts] Tektronix Type 602 manual

2008-11-06 Thread Dave M
://www.vintagemanuals.com/search.php?find=602 Cheers!!! -- Dave M MasonDG44 at comcast dot net (Just substitute the appropriate characters in the address) Life is like a roll of toilet paper; the closer it gets to the end, the faster it goes. Date: Wed, 5 Nov 2008 14:21:35 +0100 (CET) From: Magnus

Re: [time-nuts] time-nuts Digest, Vol 53, Issue 28

2008-12-05 Thread Dave M
. -- Dave M MasonDG44 at comcast dot net (Just substitute the appropriate characters in the address) Life is like a roll of toilet paper; the closer it gets to the end, the faster it goes. ___ time-nuts mailing list -- time-nuts@febo.com

Re: [time-nuts] repairing an HP 5248M crystal oscillator

2008-12-08 Thread Dave M
You can get an excellent PDF copy of the 5245M manual from Artek (http://artekmed.startlogic.com/page3.html) for only $10 US. They do good work there. -- Dave M Life is like a roll of toilet paper; the closer it gets to the end, the faster it goes. The oven on a 5248M is not working

Re: [time-nuts] Build my own dist. amp ??

2008-12-13 Thread Dave M
/g8lmx-amplifier.htm Neither uses any of your parts, but shouldn't be unreasonable in price. -- Dave M MasonDG44 at comcast dot net (Just substitute the appropriate characters in the address) Life is like a roll of toilet paper; the closer it gets to the end, the faster it goes. - Original

[time-nuts] Ovenaire OSC-48-11C Oscillator info?

2008-12-29 Thread Dave M
) or tied together internally? What are the oven and oscillator power voltages? Is the oscillator able to be disciplined? If so, what are the characteristics? Any help is sincerely appreciated. -- Dave M MasonDG44 at comcast dot net (Just substitute the appropriate characters in the address) Life

Re: [time-nuts] Different Thunderbolt versions

2009-02-21 Thread Dave M
happened before I found this group, but am interested in the details. Things like: When did the buy happen? Which model T-Bolt was bought? What was the price? Was PSU included? Are any units still available? Is another buy planned for the near future? Thanks for the info. Dave M MasonDG44

Re: [time-nuts] Different Thunderbolt versions, group buy

2009-02-22 Thread Dave M
. Power supplies aren't a problem for me... I have a few linears that should work well, or I could build whatever I need. If finding a reliable PSU becomes a problem, I can take the T-Bolt without a PSU. Dave M MasonDG44 at comcast dot net (Just substitute the appropriate characters

Re: [time-nuts] WWVB Wall and Travel Clocks On Sale

2009-02-23 Thread Dave M
think I bought all except the LaCrosse clock from WalMart. I don't think I paid more than $20 US for any of the clocks. Dave M MasonDG44 at comcast dot net (Just substitute the appropriate characters in the address) Life is like a roll of toilet paper; the closer it gets to the end, the faster

Re: [time-nuts] Update on next TBolt group buy

2009-04-16 Thread Dave M
Is there a target date in the foreseeable future (any info, for that matter) for the next TBolt group buy? Or did I miss it while away from home? Waiting patiently. -- In theory, there isn't any difference between theory and practice. In practice, there is. - Yogi Berra Dave M

Re: [time-nuts] Chart recorder consumables (was HP 117 paper)

2009-04-30 Thread Dave M
them for $1/roll plus shipping from 32068. Cheers! Dave M masondg44 at comcast dot net One good thing about Alzheimer's; you get to meet new people every day. Message: 9 Date: Thu, 30 Apr 2009 12:58:06 -0700 From: Dan Rae dan...@verizon.net Subject: Re: [time-nuts] Chart recorder consumables

Re: [time-nuts] Need volt-nuts help

2009-06-07 Thread Dave M
used a mechanical chopper, and had a limited lifetime. The later models used electro-optical choppers, eventually moving to FETs. Don't know what type of stabilization your instrument uses, but I recommend that to be the first thing you should check. Geed luck with your instrument. Dave M

Re: [time-nuts] Possible candidate for 10MHz sine distribution

2013-06-08 Thread Dave M
. It's an NTSC composite video DA. NTSC composite video is relatively low bandwidth, typicaly 5MHz or so. Without complete specs in this DA, you can't rely on it having sufficient bandwidth, even for a 10MHz sine wave; certainly not sufficient for anything resembling a pulse or square wave. Dave

Re: [time-nuts] ThunderBolt Display

2013-08-15 Thread Dave M
Cheers, Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

Re: [time-nuts] Ovenair OSC 49-38B

2014-02-03 Thread Dave M
/n9zia//test/EIP_545A_Service_Manual.pdf? It's about a 47 Mb download, so if you're on dialup, let me know and I'll extract the details for you. Happy downloading! Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https

Re: [time-nuts] EFC divider resistors

2014-02-03 Thread Dave M
. Cheers, Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

Re: [time-nuts] Distribution amp - Use a video amp unit ?

2012-03-25 Thread Dave M
unit at http://www.ko4bb.com/ham_radio/Extron_3_80/. Cheers, Dave M A woman has the last word in any argument. Anything a man says after that is the beginning of a new argument. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go

Re: [time-nuts] 5370B Manual - Searchable?

2012-04-07 Thread Dave M
From: paul swed paulsw...@gmail.com Send it to diddiers site KO4bb. Thats a good place to share it from. On Sat, Apr 7, 2012 at 7:32 AM, Dave M dgmin...@mediacombb.net wrote: From: Ed Palmer ed_pal...@sasktel.net Is there a pdf of the HP 5370B Manual that allows you to search for text

Re: [time-nuts] Op and Service Manual for HP 5372A

2012-04-24 Thread Dave M
. Just search for 5372A. Dave M A woman has the last word in any argument. Anything a man says after that is the beginning of a new argument. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman

Re: [time-nuts] What's the easiest way to divide by 10 for Thunderbolt reference output?

2012-07-24 Thread Dave M
... they are meant for RF from 50 MHz upwards. Dave M A woman has the last word in any argument. Anything a man says after that is the beginning of a new argument. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com

[time-nuts] Fw: What's the easiest way to divide by 10 for Thunderbolt reference output?

2012-07-24 Thread Dave M
Dave M wrote: From: Chris Wilson ch...@chriswilson.tv Ready made or to be built? Use a divide-by-10 (7490-like) set to divide with 50% duty cycle or divide by 5 then by 2. Thanks for the reply Azelio. Sorry, should have said, ready built, got too many half finished jobs on the go right

[time-nuts] Advice on Austron 1250A

2012-08-18 Thread Dave M
is a consideration; that's one of the reason I'm interested in this unit. Manual states long-term stability of 5x10e-11 per day after 90 days. Thanks for advice, Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin

Re: [time-nuts] Advice on Austron 1250A

2012-08-18 Thread Dave M
dream up some kind of hookup to put them all to use. Thanks for all the advice and info... Dave M Any chance that would be the MIT flea? If so another time-nut in the area. I will be there and it looks like a good day. To your question. Good standard and all. I suppose a reasonable price

Re: [time-nuts] Advice on Austron 1250A

2012-08-18 Thread Dave M
unavailability). Good deal, or pass it up for a lower priced unit? Or recommendations for a different mfr/model? Price is a consideration; that's one of the reason I'm interested in this unit. Manual states long-term stability of 5x10e-11 per day after 90 days. Thanks for advice, Dave M

Re: [time-nuts] Advice on Austron 1250A

2012-08-18 Thread Dave M
, the seller is local, and has given me his address, so I do have a chance at satisfaction should things go wrong. Note to Tom: it's the 1250 that can't be disciplined; the 1250A can be. Cheers, Dave M Majdi S. Abbas wrote: On Sat, Aug 18, 2012 at 08:23:45PM -0500, Dave M wrote: Does anyone

Re: [time-nuts] Thunderbolt distribution amplifier needed.

2012-08-21 Thread Dave M
literature for details. I like the ADA 3-80 because of the number of inputs and outputs it offers. Bandwidth is great and noise is low. If you need really low noise distribution, you will have to determine suitability for your needs. Cheers, Dave M

Re: [time-nuts] 10811 crystal orientation

2009-07-08 Thread Dave M
are all internally constructed the same, I would not expect a difference for the -60111. - Chad. Speaking of the variants of the 10811- oscillator, does anyone know of a reference that describes or compares the details and differences between all the variations? Dave M masondg44

Re: [time-nuts] 10811 crystal orientation

2009-07-08 Thread Dave M
=flowed I think several of us have an HP document on-line that explains at least a bunch of the various models. My copy is at http://www.febo.com/pages/hp10811/HP10811-Specs.pdf John Dave M said the following on 07/08/2009 08:02 PM: Speaking of the variants of the 10811- oscillator, does

[time-nuts] Need sevice manual or schematics for Fluke 103A

2009-07-15 Thread Dave M
the manual that I have from an online vendor), but no luck. Can someone point me to a source? Many thanks!! Dave M masondg44 at comcast dot net I went to a bookstore and asked the saleswoman, Where's the self-help section? She said if she told me, it would defeat the purpose

Re: [time-nuts] Need sevice manual or schematics for Fluke 103A

2009-07-15 Thread Dave M
if the manual turns out to be the wrong one. Dave M masondg44 at comcast dot net - Original Message - From: Dave M masond...@comcast.net To: Yahoo Manual Exchange manual_excha...@yahoogroups.com; TimeNuts time-nuts@febo.com Sent: Wednesday, July 15, 2009 1:13 PM Subject: [time-nuts] Need sevice

Re: [time-nuts] Need sevice manual or schematics for Fluke 103A

2009-07-16 Thread Dave M
(http://www.manualsplus.com). Don't know how many they have in stock. Dave M masondg44 at comcast dot net From: phil fort...@bellsouth.net Subject: Re: [time-nuts] Need sevice manual or schematics for Fluke 103A To: Discussion of precise time and frequency measurement The Fluke 203A

[time-nuts] Distribution Amp project

2009-07-29 Thread Dave M
for a source of low cost 1:1 and 2:1 Ethernet transformers. I've tried the local computer shops, but they don't seem to be interested in helping. Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin

Re: [time-nuts] Multiple Voltage monitoring (Matt Ettus)

2009-07-31 Thread Dave M
on the Labjack web site. An active forum is available as well. $129 USD plus SH. Lots of digital I/O as well, if you need it for other functions. Dave M masondg44 at comcast dot net ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe

Re: [time-nuts] time-nuts Digest, Vol 60, Issue 120

2009-07-31 Thread Dave M
-8859-1; format=flowed Dave M wrote: I haven't been able to find schematics for the Extron DA, but according to the author's discussion, it seems to be very similar to the DA circuit schematics at http://www.ko4bb.com/~bruce/IsolationAmplifiers.html. I haven't had time to reverse engineer

Re: [time-nuts] Method for comparing oscillators

2009-08-03 Thread Dave M
-ND Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

Re: [time-nuts] HP 106B quartz frequency standard...the story

2009-08-09 Thread Dave M
an assembly here with 8 of them on it. If you like, I can send it right away (if you're outside the USA, you pay postage). Dave M masondg44 at comcast dot net I went to a bookstore and asked the saleswoman, Where's the self-help section? She said if she told me, it would defeat the purpose

Re: [time-nuts] HP 106B quartz frequency standard...the story

2009-08-10 Thread Dave M
Thanks for that! - I do have a number of the 5254L units and one of them is now being eyed off for organ donation. So thanks to all offers for the 1854-0003. The 2N1701 in a T08 is my next quest... 2009/8/10 Dave M masond...@comcast.net: Hi all, Latest update. With some help and phone calls

Re: [time-nuts] HP 106B quartz frequency standard...the story

2009-08-10 Thread Dave M
at http://www.talonix.com/shop/category.aspx?catid=27page=5sortby= Either the 2N1485 or 2N1486 transistors should sub for the 2N1701. Both are in stock at http://www.talonix.com/shop/category.aspx?catid=27page=3sortby= Dave M masondg44 at comcast dot net I went to a bookstore and asked

Re: [time-nuts] HP 5328 PSU nightmare... Or stupid engineer, you decide...

2009-09-09 Thread Dave M
of the current is going. Good luck with the troubleshooting. Dave M masondg44 at comcast dot net ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

Re: [time-nuts] The Demise of LORAN (was Re: Reference oscillator accuracy)

2009-11-14 Thread Dave M
I've read and heard from this forum as well as a number of other sources that GPS can be easily jammed. What makes GPS so vulnerable? How can it be jammed? -- David masondg44 at comcast dot net From: Francesco Ledda frle...@verizon.net Subject: Re: [time-nuts] The Demise of LORAN (was Re:

Re: [time-nuts] Z3801A EFC Error

2011-07-10 Thread Dave M
Dear John, On 07/10/2011 04:38 PM, John Ackermann N8UR wrote: I'm getting my two trusty Z3801As up and running after 18 months of downtime and a 500 mile move. Unit #1 came up just fine. Unit #2 has been running for about 18 hours and is working OK except that the health status is showing an

Re: [time-nuts] 50:50 duty from a PRS10

2011-07-21 Thread Dave M
Hello, I have a PRS10 rubidium which gives a 1pps output. The output is a 10 us positive pulse. I need to convert that to a 50:50 duty cycle pulse. Still 1pps. I'm hoping for a simple circuit rather than having to use a pic. I don't mind a bit of propagation delay, but I need to preserve

Re: [time-nuts] Anyone know of a frequency comparator module or kit?

2011-07-29 Thread Dave M
Hello Folks, New time nut here. I have a Fluke 103A frequency comparator which I use with a Z3801 GPS to other frequency sources. At 1 time I had a bunch of HP oscillators plug ins and it was great fun to watch each of these plug ins warm up, move back and for across 10 Mhz. Finally, being

Re: [time-nuts] manuals, anyone?

2011-08-04 Thread Dave M
I think a simple solution is anyone that gets a free manual has to scan it and upload it to BAMA or some other free manual website. Nice in theory. Unlikely to work in practice, IMO. BAMA is a laudible effort, but in practice many documents aree not well scanned and some are nearly useless.

Re: [time-nuts] Fluke 207 vlf rcvr schematic please

2011-09-24 Thread Dave M
On 9/24/2011 9:39 AM, paul swed wrote: Hello to the group I wonder if anyone might have the fluke 207 vlf manual. I am actually looking for the phase shifter board. I think it actually uses a regenerative divider from what I can tell and suspect the issues I see are at that point. Slightly off

Re: [time-nuts] TENMA 72-5000 Counter Mods

2011-10-01 Thread Dave M
Picked up one of these today for $40.00. Timebase to 10 seconds. Supposed to use a 10 mHz timebase for channel A up to 100 mHz. Any experience with this counter? How hard to make it use the 10 mHz from a Thunderbolt? Have no information on this counter, and assume that it's target audience

Re: [time-nuts] time-nuts Digest, Vol 87, Issue 5

2011-10-02 Thread Dave M
using a discrete crystal. The power supply uses a transformer and appears to be linear. A BNC connector next to the crystals could be repurposed to a 10 mHz input. A small cap connected to one of the crystal leads might do On 10/01/2011 07:16 PM, Dave M wrote: Picked up one of these today

Re: [time-nuts] HP5334B with 10544 OCXO

2012-01-30 Thread Dave M
being turned off for an unknown period of time. Dave M A woman has the last word in any argument. Anything a man says after that is the beginning of a new argument. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https

Re: [time-nuts] HP5334B with 10544 OCXO

2012-01-30 Thread Dave M
are located very close to the standard (low-stability) crystal at the rear of the main board. Dave M A woman has the last word in any argument. Anything a man says after that is the beginning of a new argument. ___ time-nuts mailing list -- time-nuts

Re: [time-nuts] How best to exchange Large files?

2012-02-20 Thread Dave M
there, I don't see a box to enter the name of the file that I want to download, not a button to push that lets me download it. All I see on the page is a button to delete a file, a Browse box and button to upload a file. What am I doing wrong? Dave M A woman has the last word in any argument

Re: [time-nuts] How best to exchange Large files?

2012-02-20 Thread Dave M
the column headings and a delete button, not a list of files available to download (perhaps because there weren't any files yet posted and available for download?). I understood how to upload a file.. .just wasn't clear how to specify and download a file. Cheers, Dave M A woman has the last word in any

[time-nuts] Frequency counter recommendation

2010-12-15 Thread Dave M
I'm a retired electronics tech and computer programmer. I have a pretty decently equipped shop for almost all of my projects and experiments. However, my time and frequency equipment is a bit long in the tooth. I have a couple old HP 5328A counters (commercial version; not the military

Re: [time-nuts] Frequency counter recommendation

2010-12-15 Thread Dave M
taking time to offer your advice. Dave M Hi Dave, On 12/15/2010 08:55 PM, Dave M wrote: I'm a retired electronics tech and computer programmer. I have a pretty decently equipped shop for almost all of my projects and experiments. However, my time and frequency equipment is a bit long

Re: [time-nuts] Frequency counter recommendation

2010-12-20 Thread Dave M
I don't believe anybody is speaking to perceived value as much as historical market cost at various times over the years. I paid $200 for my 5370B last year and it's in superb condition and well inside factory specs. There is no way I'd sell it though. My guess is Bob C and most of us

Re: [time-nuts] Frequency counter recommendation

2010-12-21 Thread Dave M
I'd like to input a few suggestions regarding layout and construction, namely, the PCB material and the form factor. I suggest that any circuitry processing signals over about 2-3 GHz be constructed on a PTFE or PTFE/ceramic PCB material, such as Rogers RT/Duroid (www.rogerscorp.com/). Arlon

Re: [time-nuts] 10544 TCXO used in H/P 5245L counter

2010-12-24 Thread Dave M
Subject: [time-nuts] 10544 TCXO used in H/P 5245L counter I`m looking for a pdf of the schematic of the motherboard that the 10544 frequency reference plugs onto in the H/P 5245L counter. This is the one that has a 723N, and a 7490N to produce a 100KHz reference. Something is amiss with this

Re: [time-nuts] 10 to 100 MHz Multiplier

2011-01-03 Thread Dave M
Here you can find a project of the Multiplier: http://www.timeok.it/files/10_to_100_mhz_multiplier.pdf Luciano P. S. Paramithiotti Luciano, That's a good looking project, and pretty good results for a homebrew multiplier. Would you have a picture of the bottom of the board that you

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