Re: [time-nuts] Source for DC-blocking 50-ohm terminators? (Spectracom 8140)

2018-06-04 Thread Dave M
and L12), and the DC will be gone from the outputs. Much easier and cheaper than DC blocks, and safer for your equipment in case you forget to install a DC block.. Dave M

[time-nuts] Phase Noise Measurement Fundamentals Webcast from Keysight

2018-05-14 Thread Dave M
I just got this email from Keysight announcing a web seminar on phasse noise testing. Thought it might be of interest to the group. Phase Noise Measurement Fundamentals Webcast Wednesday, May 16 . 10 a.m. PT/1 p.m. ETLearn More Register This 60-minute webcast will cover the fundamentals of

Re: [time-nuts] accurate 60 hz reference chips/ckts

2017-12-14 Thread Dave M
of the crystal, the complete oscillator circuit itself, and on the accuracy to which you adjust the oscillator's frequency. Cheers, Dave M Patrick Barthelow wrote: PIcked up a couple of large size Radio Shack 63-960 LED clocks with Settable alarm, at local Goodwill store. $3.00 ea work great see

Re: [time-nuts] Vectron Labs 100MHz OCXO datasheet?

2017-08-09 Thread Dave M
. I've sent a copy of the datasheet directly to Neil 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] Looking for info on Austron 1100-1 OXCO

2017-07-02 Thread Dave M
Thanks for the info, Roger Dave M Roger Tilsley wrote: Greetings Dave, While I do not know the Austron 1100 oscillators, I have experience of Austron 1120 oscillators. I suspect the 1100 and 1120 are very similar. I am sending a data sheet for the 1120 and an operating spec for the 1120 L

[time-nuts] Looking for info on Austron 1100-1 OXCO

2017-06-30 Thread Dave M
Does anyone have any data on the Austron 1100-1 5MHz OXCO? Pinout & specs would be great. Thanks! 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 fo

Re: [time-nuts] ebay posting

2017-06-20 Thread Dave M
te AS210 system manuals Thanks!! 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.

[time-nuts] Fw: HP 1820-0313 4.2V Logic (Flip-flop)

2017-05-16 Thread Dave M
Dave M wrote: Poul-Henning Kamp wrote: In message <1580810140.741428.1494966823...@mail.yahoo.com>, Ulf Kylenfall via time-nut s writes: That the 1820-0313 is unobtanium I can understand.Has anyone created an equvalent based on discretesor is there a suitable SMD "single

Re: [time-nuts] HP 1820-0313 4.2V Logic (Flip-flop)

2017-05-16 Thread Dave M
of the pertinent pages from my old Motorola databook (1966 Motorola Semiconductor Handbook) directly to Poul. Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time

[time-nuts] Berkeley Nucleonics Phase Noise Testing system webinar

2017-04-20 Thread Dave M
Thought this might be of interest --- I own couple BNC (Berkeley Nucleonics Corp) instruments, and get ads from them occasionally. Perhaps someone in the group might be interested, since we all are interested in measuring and limiting phase noise in our sources. Obviously, they are promoting

Re: [time-nuts] SR620 Failure Code.

2016-12-22 Thread Dave M
Complete manuals, including service info, are available on the net. Google for SR620 manual Dave M W2GPS wrote: Time-nuts, My SR620 has started reporting "test error 34" on power-up and will do nothing after that. Does anyone know what that message means? I have a reasonable

Re: [time-nuts] Prologix USB-GPIB Controller

2016-10-07 Thread Dave M
That's interesting... My memory chips must be experiencing bit failures lately. This isn't the first time it's happened over the past few weeks. I sit (more comfortable than standing) corrected. Thanks for the admonition. Dave M Bob Camp wrote: Hi That’s been my experience as well over

Re: [time-nuts] Prologix USB-GPIB Controller

2016-10-07 Thread Dave M
shopping for a Prologix. Dave M George Dubovsky wrote: I have a real NI GPIB-USB-HS if he'd be interested in that. Prolly cheaper than a new Prologix. geo On Fri, Oct 7, 2016 at 3:15 PM, Dave M <dgmin...@mediacombb.net> wrote: Does anyone happen to have a Prologix USB-GPIB Cont

[time-nuts] Prologix USB-GPIB Controller

2016-10-07 Thread Dave M
Does anyone happen to have a Prologix USB-GPIB Controller available for sale? One of my friends needs one for his bench. He is retired and on a limited budget, and would like to find one cheaper than MSRP from Prologix. Dave M ___ time-nuts mailing

Re: [time-nuts] Rare HP clock

2016-10-03 Thread Dave M
It's Ebay item 351861979923 Dave M KA2WEU--- via time-nuts wrote: I can not find the item on EBAY , Ulrich In a message dated 10/3/2016 11:51:24 A.M. Eastern Daylight Time, jn6...@gmail.com writes: According to my -hp- catalogs it was available only in rack-mount form, not in a cabinet

Re: [time-nuts] Normal operating specs of a Morion MV89?

2016-09-28 Thread Dave M
an Ebay seller, Ebay will require that you return the item by a traceable shipment, which will probably cost you more than the MV89 cost. Sorry to say that, but that's just the dimmer side of buying unknown items from across the big pond. Dave M Tim Lister wrote: On Wed, Sep 28, 2016 at 4:14

Re: [time-nuts] Adjusting nominal frequency of FTS 1200-100 OCXO?

2016-09-19 Thread Dave M
not, the problem was exhibited as an intermittent failure, consistant with board flexure or pressure. Some of the problems were very hard to find, but we had to keep investigating until we had isolated the real point of failure. Cheers, Dave M Adrian wrote: Christopher, my 4060 has been locking

[time-nuts] Efratom M-100 Rubidium

2016-08-30 Thread Dave M
t may well be just mechanical or cosmetic in nature, and have no bearing on the operation (I haven't fired it up yet). It appears to be physically identical to the illustrations of the 70502-1 in the manual. Any help or comments are welcome. Dave M ___

Re: [time-nuts] Lucent boxes

2016-07-19 Thread Dave M
It's under the MANUALS tab. Dave M Richard W. Solomon wrote: This Home Page ?? http://www.ko4bb.com/getsimple/index.php?id=index-1 Don't see any search box there ??? 73, Dick, w1KSZ -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Artek Manuals

Re: [time-nuts] OT stuffing boards: was GPS interface/prototyping

2016-06-24 Thread Dave M
ays please use a 1000mA 5V power supply connected to the screw terminals. i.. Pre-loaded software - Reflow Wizard Looks like a pretty decent project. I've no connection with the seller... I found this project after getting intrested in this thread. Cheers, Dave M Chris Albertson wrote: Am

Re: [time-nuts] TU60-D120-131 Specs....?

2016-06-14 Thread Dave M
Datasheet: http://www.rabel.org/archives/Navman_Jupiter_11_12/LA010050B_JupiterT_DataSheet.pdf Example projects: http://www.jrmiller.demon.co.uk/projects/ministd/frqstd0.htm http://www.vhfcomm.co.uk/GPS%20control.pdf More info by searching Google for NAVMAN TU60-D120 Cheers, Dave M Bud

Re: [time-nuts] Phase meter for synchronizing osc's to GPSDO

2016-05-31 Thread Dave M
for those names and see if you can contact them for more info. Cheers, Dave M Bud Patten wrote: > Back in the spring of 2012 an article was published in VHF > Communications entitled "A Phase Meter: a help to synchronize > oscillator's to GPSDO". In it the authors indicated that

Re: [time-nuts] Looking for Z3801 Power Supply Board

2016-05-23 Thread Dave M
, you might find that the parts unit also has a bad PSU. It's a chance you take. Cheers, Dave M Dan Rae wrote: My Z3801 power supply board has given up the ghost. It had been working well apart from an occasional Error 230 causing it to go into Holdover for no good reason from time to time

Re: [time-nuts] Temperature controlled TCVCXO

2016-05-13 Thread Dave M
The chamber is controlled to 43C by the Peltier device, allowing quite fast warmup times for the instrument, and operation above normal environmental temperatures. Cheers, Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscrib

Re: [time-nuts] Prescaler

2016-03-28 Thread Dave M
really haven't had a need to go higher. I need to investigate the input and output conditions and limitations of these Hittite chips. Might have to add an amp and/or attenuator pad to make it work with my instruments. Cheers, Dave M EB4APL wrote: The first reference is a board for a two

Re: [time-nuts] Prescaler

2016-03-27 Thread Dave M
prescaler at your target frequency range. There might be (probably is) one available... I just haven't run across it. BTW, which frequency counter do you have? There might be a better solution for you than an external prescaler. Cheers, Dave M

Re: [time-nuts] Austron 2010B

2016-03-23 Thread Dave M
There's a CDROM available from http://www.prc68.com/P/Prod.html#Austron that contains a manual for the 2010B, as well as several other Austron models. Don't know if it's just a user guide or a full Op/Svc manual. Email the seller (Brooke Clark) for details. Cheers, Dave M paul swed wrote

Re: [time-nuts] DC-DC Converters

2016-03-19 Thread Dave M
stuff at good prices. Cheers, Dave M paul swed wrote: Dave never heard of these guys before. It looks like they have lots of stuff that can be useful at reasonable prices. Thanks for sharing. Paul WB8TSL On Sat, Mar 19, 2016 at 1:59 PM, Dave M <dgmin...@mediacombb.net> wrote:

[time-nuts] DC-DC Converters

2016-03-19 Thread Dave M
such as the Z3801A or similar. 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] Inside a CTS 1960017 OCXO

2016-02-28 Thread Dave M
ghborhood of 0.01%/degC were common. I have a couple on my bench, and they just keep on working. They still pop up at auction frequently. Cheers, Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.co

Re: [time-nuts] SMD TADD-1 distribution amplifier

2015-12-18 Thread Dave M
Amp (now Tyco) did introduce them. Called "Decoupled Connectors'' Info at http://www.te.com/usa-en/search.html?q=Decoupled%2BConnectors=header Tyco parts 413476-2 and 5413476-2 are available from Mouser, maybe Digikey as well Cheers, Dave M Chris Caudle wrote: On Fri, December 18, 2

Re: [time-nuts] KD2BD WWVB receiver/decoder in QEX

2015-11-22 Thread Dave M
attached a PDF of the IC list, sources and price. Hope this helps, Dave M Nick Sayer via time-nuts wrote: On Nov 22, 2015, at 7:47 AM, paul swed <paulsw...@gmail.com> wrote: As mentioned a nice answer to the wwvb modulation change. I looked up the parts and it seems that they hav

Re: [time-nuts] Newbie

2015-08-18 Thread Dave M
There's a good search utility at https://www.mail-archive.com/time-nuts@febo.com/ Cheers, Dave M Gary Woods wrote: Before I embarrass myself in public (again), is there an archive search for the time nuts list? I'll lurk for a while before posting

[time-nuts] Need Pinouts data for McCoy MC834X4 OXCO

2015-08-15 Thread Dave M
model 4834. The width and length dimensions match, but the height of the McCoy unit is about 1/4 taller than the Oak. The pin arrangements are the same, but I'm not really sure if their functions are the same. Help is really appreciated! Dave M

Re: [time-nuts] KS-24361 EFC Error

2015-08-12 Thread Dave M
I have verified with MTI that the recommended tuning voltage for model 260-0624-C is 0 to 6V. The datasheet range of -10V to +10V is the available range of EFC for the entire 260 series, and may or may not apply to any specific model within the 260 series. Cheers, Dave M Dave M wrote

Re: [time-nuts] KS-24361 EFC Error

2015-08-11 Thread Dave M
The OCXO in these units is the MTI-Milliren model 260. According to its datasheet, the tuning voltage range is -10Vto +10V. (http://www.mti-milliren.com/pdfs/260.pdf) Cheers, Dave M GandalfG8--- via time-nuts wrote: Bevor I heat up the big soldering iron to remove the OCXO, I wanted

Re: [time-nuts] HP10811 vs 00105 OCXO

2015-08-09 Thread Dave M
. That's roughly 10x better than the 10811, and much cheaper. The Z3812A GPSDO units both use the MTI OXCO, so you could buy 1 or 2 of the REF-0 units and get the good OXCO performance plus all the other stuff that surrounds it. Cheers, Dave M KA2WEU--- via time-nuts wrote: How good or bad

Re: [time-nuts] Vintage Crystal Oven

2015-04-10 Thread Dave M
out. Never know, there might be something useful there. Cheers, Dave M George Dubovsky wrote: I'm not sure I remember the exact one you are describing, but in the last month or so, there was a fellow selling crystal ovens on QTH.com. I think they were from land-mobile service, like Motorola

Re: [time-nuts] Frequency doubler 5/10 and distribution amplifierfor Lucent KS-24361

2015-04-05 Thread Dave M
-size PDF of it for my own use. Cheers, Dave M John Allen wrote: Hi Time-Nuts - FWIW, the is a 30 day free trial of Altium Designer at http://www.altium.com/free-trial?gclid=CKnpkaux38QCFQotaQodoaYAWQ The download requires a company name and email address. I for one, would like at least one

Re: [time-nuts] OXCO insulation

2015-02-25 Thread Dave M
Great find, Arthur. I had already convinced myself to use fiberglass insulation to reinsulate my OXCOs, but I'm going to order 2 or 3 sheets of this to play with. Thanks a bunch!! Dave M Arthur Dent wrote: If you check the popular auction site you can find several listing for Aspen Aerogel

Re: [time-nuts] OXCO insulation

2015-02-24 Thread Dave M
another failure because of it. Cheers, Dave M Brian Inglis wrote: On 2015-02-22 17:42, Charles Steinmetz wrote: Brian wrote: Thought of trying aerogel insulation? Dust free varieties avoid handling issues. Be careful not to over-insulate the oven -- it depends on a certain amount of heat flow

Re: [time-nuts] OXCO insulation

2015-02-22 Thread Dave M
counter that needs new insulation. The old foam was destroyed by a heater that ran wide open for a while, burning a large portion of it to a crispy mess. Thanks for your response, Dave M Bob Camp wrote: Hi A lot of modern OCXO’s no longer use insulation…. the gaps inside are now so small that you

[time-nuts] OXCO insulation

2015-02-21 Thread Dave M
can't see any advantage to it. Has anyone experienced any long term problems with Great Stuff in an OXCO? 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

Re: [time-nuts] Frequency doubler 5/10 and distribution amplifier forLucent KS-24361

2015-01-04 Thread Dave M
Good job on the doubler/distribution amp, Gerhard! Which PCB design software did you use to make the PC board? Could you share the files for it? Dave M Gerhard Hoffmann wrote: Hi, all, over the Christmas season, I have designed and built a frequency doubler from 5 to 10 MHz

Re: [time-nuts] Looking for J1 pinout newly purchased 10811D

2014-12-20 Thread Dave M
within the rated input voltage range of the LM317 regulator is OK, so long as the power dissipated by the LM317 remains reasonable. Cheers, Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin

Re: [time-nuts] Simple AC mains zero-cross detector

2014-12-16 Thread Dave M
the whole contraption. Don't know whatever happened to it after the guy moved away from the area; never heard from him again. I hope it's still working. http://electronicdesign.com/analog/differential-line-receivers-function-analog-zero-crossing-detectors Dave M

Re: [time-nuts] Choke Rings and Points North

2014-12-16 Thread Dave M
gear!! And to think, all I wanted to know was how close I needed to to point to north!! LMAO!! 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

[time-nuts] Choke Rings and Points North

2014-12-15 Thread Dave M
the directional accuracy affect the precision survey? I'm assuming that it would have no effect on the accuracy of the 10 MHz frequency output. Or am I completely off base? Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https

Re: [time-nuts] Choke Rings and Points North

2014-12-15 Thread Dave M
Jim Lux wrote: On 12/15/14, 5:46 PM, Dave M wrote: With all the discussion about surveys position accuracy, I have a question about my choke ring antenna. There is an arrow marked N on the underside of the rings. How accurately does the alignment need to be to North? True north or magnetic

Re: [time-nuts] Frequency distribution isolation transformers YCL 20F001n arrived

2014-12-14 Thread Dave M
-179465.pdf Cheers, Dave M ed breya wrote: I investigated those 10b-t isolation modules a while back, and have saved every module from every network card and router/hub/switch that I have junked out. The very old 10b-t stuff is the best for getting LPFs and individual per-channel (port) type parts

Re: [time-nuts] up converting 10MHz to 20MHz

2014-12-09 Thread Dave M
and a diode bridge (http://www.techlib.com/files/diodedbl.pdf). Insertion loss is pretty hefty in both solutions, so you''ll need to follow with a 10-15db amp. Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https

Re: [time-nuts] Minicircuits specs

2014-12-08 Thread Dave M
Gerhard Hoffmann wrote: Am 29.11.2014 um 20:01 schrieb Gerhard Hoffmann: Am 29.11.2014 um 19:08 schrieb Thomas S. Knutsen: 2014-11-29 16:24 GMT+01:00 Dave M dgmin...@mediacombb.net: Yeah, that's a good way to completely avoid the issue. Since I'm the only target audience for my efforts

Re: [time-nuts] Linear voltage regulator hints...

2014-12-08 Thread Dave M
voltage and current requirements? 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] LTE-Lite

2014-12-05 Thread Dave M
stocked at Mouser, in various sizel and lengths. How quaint! Check out Mouser's catalog page at http://www.mouser.com/catalog/catalogusd/647/186.pdf. There's probably more, but this was as far as I went. Cheers, Dave M Don Latham wrote: actually, Magritte had it: “this is not a pipe” Don

Re: [time-nuts] Minicircuits 10% discount in December

2014-11-29 Thread Dave M
Bob Camp wrote: Hi On Nov 28, 2014, at 8:48 PM, Dave M dgmin...@mediacombb.net wrote: Gerhard Hoffmann wrote: Am 28.11.2014 um 23:42 schrieb Dave M: A couple weeks ago, I sent an email to the Minicircuits technical support folks in hopes of getting this, or similar, info about a couple

Re: [time-nuts] Minicircuits specs

2014-11-29 Thread Dave M
beginning to realize, as I get deeper into building my own stuff, that a VNA is quite a desireable piece of equipment. Unfortunately, I'll have to make use of my spectrum analyzer and RLC meters instead. Thanks for the responses. Dave M ___ time

Re: [time-nuts] Minicircuits 10% discount in December

2014-11-28 Thread Dave M
measured the effects of DC current in the windings of an RF transformer, such as is seen if the transformer is in the collector circuit of an amplifier? If so, could you provide a generalization of the effects, such as changes in frequency response, losses, etc.? Many Thanks!, Dave M Richard

Re: [time-nuts] Distribution Amp

2014-11-28 Thread Dave M
, in the form of a schematic or a detailed construction project, is always welcome, even if there is an available product for sale. Not reinventing the wheel, just that some of us like to do the mounting and balancing ourselves. Dave M billriches wrote: Any of the group using the TADD-1 from

Re: [time-nuts] Minicircuits 10% discount in December

2014-11-28 Thread Dave M
(specifically, T1-1 and T4-1-KK81), but so far, I'm still waiting. Guess I should give them a call.. got great technical advice from them when I called for help some time ago. Cheers, Dave M ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe

Re: [time-nuts] Minicircuits 10% discount in December

2014-11-28 Thread Dave M
Gerhard Hoffmann wrote: Am 28.11.2014 um 23:42 schrieb Dave M: A couple weeks ago, I sent an email to the Minicircuits technical support folks in hopes of getting this, or similar, info about a couple of their transformer models (specifically, T1-1 and T4-1-KK81), but so far, I'm still waiting

Re: [time-nuts] 10 MHz Filters

2014-11-27 Thread Dave M
. Cheers, Dave M Perry Sandeen via time-nuts wrote: List, I have seen on the net a 10 MHz filter using 10.7 IFtransformers but have no idea how well they would work for isolation with thenew style Lucent boxes. Thoughts? On Ebay venders are offering 10 MHz crystals for almostnothing if you buy

Re: [time-nuts] Minicircuits 10% discount in December

2014-11-27 Thread Dave M
-rite.com/newfair/pdf/Fair-Rite_Catalog_17th_Edition.pdf HTH, Dave M Bob Camp wrote: Hi On Nov 27, 2014, at 5:10 PM, Gerhard Hoffmann dk...@arcor.de wrote: Am 27.11.2014 um 23:30 schrieb Bob Camp: Hi Finding the RF transformer parts is still a bit of a challenge. No. These work quite good for me

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] 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] 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] 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] 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

[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] 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

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

[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] 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

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

[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] 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

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] 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] 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] 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

[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] 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

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] 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] 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.

  1   2   >