[time-nuts] PRS10 lamp voltage

Hello, I am a new subscriber to the list ! I am located in France and I play with time and frequency instruments on my free time. Recently I've bought an used FS725 unit with a PRS10 oscillator in it. I was wondering how can I estimated the age of the Rubidium oscillator. I think the age is

Re: [time-nuts] [EXTERNAL EMAIL] Sayrosa 607B Frequency Synthesiser

, of course :-) Many thanks, in advance, for your efforts. Regards, Paul,G8GJA -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of gandalfg8--- via time-nuts Sent: 10 June 2018 20:31 To: time-nuts@febo.com Subject: [EXTERNAL EMAIL] [time-nuts] Sayrosa 607B

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

Julien Thanks for the link I downloaded the manual and it all makes sense now. Yes just lift the inductors to clear the DC. Its is actually for line powered amplifiers as someone mentioned. You would of thought there would be a power jumper per BNC. Good luck. Paul wb8tsl On Mon, Jun 4, 2018 at 1

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

the caps within it. Just a thought. Regards Paul wb8tsl On Mon, Jun 4, 2018 at 10:06 AM, Julien Goodwin wrote: > Making my own that fits in either the mini Pomona boxes (which has > BNCs)[1] or the nice really tiny Crystek SMA housings[2] with a BNC to > SMA looks like it's probably the sensib

Re: [time-nuts] TrueTime XL-AK Issues

. Regards Paul WB8TSL On Fri, May 25, 2018 at 5:19 PM, Richard Solomon <w1...@outlook.com> wrote: > The second unit locked up and showed 4 satellites at the time I looked. > > Next step is to replace the battery and see if it saves the setup. > > > In particular, I will

Re: [time-nuts] TrueTime XL-AK Issues

replying, > > > 73, Dick, W1KSZ > > > Sent from Outlook<http://aka.ms/weboutlook> > ____ > From: time-nuts <time-nuts-boun...@febo.com> on behalf of paul swed < > paulsw...@gmail.com> > Sent: Wednesday, May 23, 2018 12:5

Re: [time-nuts] TrueTime XL-AK Issues

Odetics receivers. Good luck Paul. On Wed, May 23, 2018 at 3:26 PM, Bob kb8tq <kb...@n1k.org> wrote: > Hi > > My guess would be that they are not in a mode that allows them to lock. > Some > GPSDO’s require a “start” command. Others hold off locking until a site &

Re: [time-nuts] Cesium sold

Doug I sent seperate email on the R references early yesterday. Not sure you got those and I am intereseted. paulsw...@gmail.com Regards On Sat, May 19, 2018 at 11:32 PM, Doug Millar via time-nuts < time-nuts@febo.com> wrote: > Hi, Thanks for all the responses. The unit has been spoken and paid

Re: [time-nuts] Cesium Clock Avialable

if it works. Regards Paul On Sat, May 19, 2018 at 3:49 PM, paul swed <paulsw...@gmail.com> wrote: > Bob > I believe that the Cesium 133 as I recall actually isn't. > There was a document from HP. But its been a long time. > I will bet folks ship the 5061s all the time without a

Re: [time-nuts] Cesium Clock Avialable

Bob I believe that the Cesium 133 as I recall actually isn't. There was a document from HP. But its been a long time. I will bet folks ship the 5061s all the time without a thought either way. Just saying. Neither right or wrong. Regards Paul On Sat, May 19, 2018 at 2:18 PM, Bob kb8tq <

Re: [time-nuts] Cesium Clock Avialable

ticking clock. Congrats and have fun. I think the darn clocks go for as much as Doug is asking. Shipping was about $130 or so from Az to Ma about a year ago when I picked up my 2nd 5061. I think this is a bit cheap as it came from a company that most likely gets a discount we don't. Regards Paul

[time-nuts] Resistance components interested.

Apologies to everyone as this part of Doug's offer isn't time nuts. Doug I am interested in the R's Please contact me directly paulsw...@gmail.com ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] Cesium Clock Avialable

Hi Doug Is it possible to test its operation and can the time left on the cesium be calculated Regards Paul -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Doug Millar via time-nuts Sent: 19 May 2018 05:04 To: time-nuts@febo.com Subject: [time

Re: [time-nuts] Commercially available empty ovens for oscillator testing?

references without wasting power all day long. If I am more serious I flip to an external GPDO through the same distribution system after its warmed up. Typically a TBolt or Z380. Hope that helps. Regards Paul WB8TSL On Sat, May 12, 2018 at 12:55 PM, Julien Goodwin <time-n...@studio442.com

Re: [time-nuts] Anybody have suggestions for time related sciencefairprojects?

Hi how about frequency difference /temperature of a oved'ed Xtal oscillator -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Bill Hawkins Sent: 11 May 2018 06:40 To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Anybody

[time-nuts] how long dues this rubidium standard last for

? I realise the are a lot of questions but any answers would be welcome Regards Paul B ___ 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] Racal 9475 Rubidium

Hi Dan Regarding a photographs of the back of your 9475 as my unit dues not have a heat sing and it is serial number B002 so your offer would be useful Regards Paul B -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Dan Rae Sent: 03 May 2018 16:38

[time-nuts] Adret 4100 compared to the Tracor 527

Regards Paul B ___ 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] Racal 9475 Rubidium

Hi all new member hear could any of you help with the following information As I have just bought a Racal 9475 Rubidium and it has problems Is there any stock faults ? What is the life of the rubidium standard? Regards Paul ___ time-nuts

Re: [time-nuts] Austron 2100 LORAN C manual I have a pdf!

John Glad it could help. Its a shame we don't have some transmitters to work with. They do turn on occasionally but it seems fewer and fewer these days. Though lightsquared satellite will be decided on within a month if thats our alternate PNT source over eLoran. Regards Paul WB8TSL On Thu, Apr

Re: [time-nuts] 4046 replacement

to the internal design of this stage. There's quite a bit about it in several places on the net. Regards, Paul Reeves G8GJA -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of donald collie Sent: 18 April 2018 10:40 To: Discussion of precise time

Re: [time-nuts] WWVB information

. Also unless I used a number of tricks like de-psk-rs and fixed carrier insertion none of my spectracoms. True Times would decode time. I am east cost US so quite far away from wwvb. I believe simple tricks by others far closer actually do work. Regards Paul WB8TSL On Fri, Apr 13, 2018 at 5:26 PM, Hal

Re: [time-nuts] Weird Stuff Warehouse shutting down

. Then the fact that its going to be tough to ship really puts a kink in the digging. No matter a really great video of the place. Regards Paul WB8TSL On Sun, Apr 8, 2018 at 11:37 AM, Azelio Boriani <azelio.bori...@gmail.com> wrote: > For those of us (like me) that can travel to the US less

Re: [time-nuts] Weird Stuff WareHouse shutting down

and they have ladders like you see in home depot to get to the top. There was a genrad admittance bridge on the top shelf. In good condition and in the nice wood box. I did not go to C as I simply ran out of time. Pretty good? Regards Paul WB8TSL On Sun, Apr 8, 2018 at 12:18 AM, Jeff Woolsey &l

Re: [time-nuts] Weird Stuff Warehouse shutting down

Like most of you I also visited these places and have dragged back and shipped lots of "Weird stuff". Even smaller parts through airport security. The oddest thing was 3/4" cable TV hardline connectors and there was no issue at all. It always made it fun to go on a business trip to the area and

Re: [time-nuts] new longwave time service planned in India

Paul WB8TSL On Tue, Apr 3, 2018 at 5:16 PM, Pieter-Tjerk de Boer <p.t.deb...@utwente.nl> wrote: > Hi, > > Apparently India plans to build two longwave transmitters for a national > time signal service: > http://www.thehindu.com/todays-paper/tp-national/coming-huge-towers-to- &

Re: [time-nuts] TV Signals as a frequency reference

-nuttery path and drugs like HP 5360 counters interfaced to computers. Today the modern mpeg/atsc has none of these qualities and really doesn't need it. Frame buffers exist in every TV. (Amazing) Originally I thought ATSC might have value. Regards Paul WB8TSL On Fri, Mar 30, 2018 at 8:52 PM, Bob kb8tq

Re: [time-nuts] Introduction, new list member, Ms Tisha Hayes, AA4HA

and the to repair traces. The stuff eats through the board and causes all sorts of very bad behaviors because the of trace to trace to leaks. Regards Paul. WB8TSL On Thu, Mar 29, 2018 at 11:26 AM, Jerry Hancock <je...@hanler.com> wrote: > Yep, 3586B put me in the top list two times I used

Re: [time-nuts] WWV/CHU

I'll add to the conversation. CHU is easier to deal with because its not a subcarrier as the 100 Hz WWV signal is. Its FSK and bell 103 modem style. Regards Paul WB8TSL On Thu, Mar 29, 2018 at 10:08 AM, jimlux <jim...@earthlink.net> wrote: > On 3/29/18 3:49 AM, Attila Kinali wrote: &g

Re: [time-nuts] Leitch CSD-5300N

Bill, Well that is good news. Looks like you found your way into the clock setup. Regards Paul WB8TSL On Fri, Mar 23, 2018 at 10:00 AM, Bill Baker via time-nuts < time-nuts@febo.com> wrote: > > Great news for owners of the wonderful old Leitch CSD-5300N master > clocks.

Re: [time-nuts] WWVB Antenna revisited/Spectracom 8182

Martin NIST did preserve the AM data so that the cheapy clocks typically worked. But phase tracking receivers don't. Regards Paul WB8TSL On Fri, Mar 23, 2018 at 5:35 AM, Martin Burnicki < martin.burni...@burnicki.net> wrote: > paul swed write: > > I'll add to the comments

Re: [time-nuts] WWVB Antenna revisited/Spectracom 8182

clocks are pretty darn nice for $50-70 as I recall. Regards Paul WB8TSL On Thu, Mar 22, 2018 at 3:47 PM, Hal Murray <hmur...@megapathdsl.net> wrote: > > organli...@pacbell.net said: > > One would think inexpensive products would be sacrificed verses the more >

Re: [time-nuts] There goes LORSTA Jan Mayen

Poul Good pictures and sad to see. Even the pictures of the area beyond the LORAN system really are nice. Hey they may have a few Cs for you. Regards Paul WB8TSL On Tue, Mar 20, 2018 at 4:37 AM, Poul-Henning Kamp <p...@phk.freebsd.dk> wrote: > http://jan.mayen.no/nyheter/destr

Re: [time-nuts] Quieting the HP-113AR Clock/Frequency Divider

success in making it quite. Regards Paul WB8TSL On Sat, Mar 17, 2018 at 10:38 PM, Jeremy Nichols <jn6...@gmail.com> wrote: > Those of us with the 1960-vintage HP-113AR/BR Clock/Frequency Divider know > how noisy they are. The mechanical clock movement of my 113AR is loud > enoug

Re: [time-nuts] TymServe TS2100 dead power supply

to produce the carrier. It was a Epson chip and even the xtal was built in and a analog CMOS gate as the modulator. Its actually fairly simple to create. Then it was a case of reading out the clock in the correct format. Regards Paul. WB8TSL On Wed, Mar 7, 2018 at 3:05 PM, Mark Sims <hol...@hotmail.

Re: [time-nuts] Z3801A OCXO manual trimming

is disconnect the coax and see what voltage is required to 0 out the 10 MHz. How far away is it from the DAC feeding the coax connector. Regards Paul On Tue, Mar 6, 2018 at 9:40 AM, Bob kb8tq <kb...@n1k.org> wrote: > Hi > > Assuming you can break the EFC lead to the OCXO, you aren’t go

Re: [time-nuts] TymServe TS2100 dead power supply

Bob Classic sign of bad electrolytics. Several comments. I have had equipment with small switchers that were separate form the mother board. Often an actual supply could be found cheap. When I can't its time to check the caps. Really cheap to replace. Regards Paul WB8TSL On Mon, Mar 5, 2018 at 7

Re: [time-nuts] Z3801A OCXO manual trimming

. But ripping the oven apart really is no fun at all. Regards Paul WB8TSL On Mon, Mar 5, 2018 at 11:21 AM, Joe Hobart <n...@npgcable.com> wrote: > > Thank you, Hal, for these links and to others for your comments. > > Setting the oven temperature on a turning point appears

Re: [time-nuts] Z3801A OCXO manual trimming

the reason is to stop temperature variations but seems painful. Regards Paul WB8TSL On Sun, Mar 4, 2018 at 11:38 PM, Hal Murray <hmur...@megapathdsl.net> wrote: > > n...@npgcable.com said: > > Does the oscillator have an adjustment? If so, is this somewhat > accessible &

Re: [time-nuts] WWV or Net Clock controlled oscillator

them. Don't remember if there was a Mhz in and 60 Hz out. Then you can go even more interesting with GPDSOs that are divided down to get the 60 Hz. Good luck Regards Paul WB8TSL On Sun, Mar 4, 2018 at 5:30 AM, D. Resor <organli...@pacbell.net> wrote: > Hello, > > > > My fir

Re: [time-nuts] FRK

r time 20 units have passed through my hands > Bert > > > Sent from my Galaxy Tab® A > Original message From: paul swed <paulsw...@gmail.com> > Date: 2/27/18 1:45 PM (GMT-05:00) To: Discussion of precise time and > frequency measurement <time-nuts@

Re: [time-nuts] FRK

Bert what I assume is the FRK lamp. it has a few wires and then 2 pins out of the side. Unless those are for mounting the lamp. Regards Paul WB8TSL On Tue, Feb 27, 2018 at 11:21 AM, Attila Kinali <att...@kinali.ch> wrote: > On Tue, 27 Feb 2018 09:01:31 -0500 > Bob kb8tq <kb...

Re: [time-nuts] FRK

Thanks for the pictures. Curious on the rb lamp. There seem to be 2 pins from the side. Is that a lamp start igniter? Regards Paul WB8TSL On Tue, Feb 27, 2018 at 9:01 AM, Bob kb8tq <kb...@n1k.org> wrote: > Hi > > Judging from the date codes on some of the parts, I’d guess th

Re: [time-nuts] Replacement A9 boards for the HP 5065A

. The question really is what is the source and part number for a good cap. does appear that the wima caps are carried by Mouser but may have long lead times. Regards Paul WB8TSL On Sun, Feb 25, 2018 at 2:50 PM, Gerhard Hoffmann <dk...@arcor.de> wrote: > > > Am 25.02.2018 um 13:46 schrieb

Re: [time-nuts] read of the wire - the Clock of the Long Now

Pete, Any updates from your doctor? Regards Paul On Thu, Feb 22, 2018 at 9:18 AM, Pete Lancashire <p...@petelancashire.com> wrote: > https://www.theengineer.co.uk/1-year-clock-texan-mountain/ > ___ > time-nuts mailing list -- tim

Re: [time-nuts] LED instead of discharge lamp for Rb vapor cell standards

Attila I haven't tried that and I suspect the lines are important because that establishes the reference. Now I would also suggest that an experiment like you suggest be tried on a FRS-XXX cheapy Rb. Easily dis-assembled and can be re-assembled back with the lamp. No harm. Paul WB8TSL On Wed, Feb

Re: [time-nuts] The "NAKED" 5065A optical unit

Corby no intent to rework the bulb. Its just I have had good success with bulbs from the FE- series when they fail to operate by heating the bulb to re-vaporize the "Stuff" that plates out. Wasn't sure if this would be an approach on the 5065 when that day comes for mine. Regards P

Re: [time-nuts] The "NAKED" 5065A optical unit

on older small FE RB's. Thank you. Paul WB8TSL On Tue, Feb 20, 2018 at 11:32 AM, paul swed <paulsw...@gmail.com> wrote: > Its RF and mag loop. > > On Tue, Feb 20, 2018 at 8:49 AM, Dana Whitlow <k8yumdoo...@gmail.com> > wrote: > >> I'm curious: >> >> Is th

Re: [time-nuts] The "NAKED" 5065A optical unit

Its RF and mag loop. On Tue, Feb 20, 2018 at 8:49 AM, Dana Whitlow wrote: > I'm curious: > > Is the lamp RF-excited, or by DC going to internal electrodes? > > And if by RF, is the energy coupled in magnetically by a loop, > or by capacitive electrodes? > > Thanks, > >

Re: [time-nuts] Looking for some Frequency Electronics info....

is supposed to be locked and they aren't. Most semi good systems systems do not allow outputs if there is a fault. But you know that already. Pure guess. Regards Paul WB8TSL On Mon, Feb 19, 2018 at 7:08 PM, djl <d...@montana.com> wrote: > start with the power supplies, and go on unti

Re: [time-nuts] The "NAKED" 5065A optical unit

Should have carefully read Corby's comment. Lamps left. On Tue, Feb 20, 2018 at 9:40 AM, paul swed <paulsw...@gmail.com> wrote: > Wow on the right, is that the lamp? > Thats one large lamp to light. I am use to the little capsules about the > size of a pr-1 light bulb. > This i

Re: [time-nuts] The "NAKED" 5065A optical unit

Wow on the right, is that the lamp? Thats one large lamp to light. I am use to the little capsules about the size of a pr-1 light bulb. This is a keeper picture. Regards Paul WB8TSL On Tue, Feb 20, 2018 at 8:24 AM, Bob kb8tq <kb...@n1k.org> wrote: > Hi > > Indeed ver

Re: [time-nuts] Does a frequency counter locked to GPS need to "warm up"?

simply not matter. Regards Paul WB8TSL On Thu, Feb 8, 2018 at 9:16 AM, Scott McGrath <scmcgr...@gmail.com> wrote: > Yes, You have removed the reference from the warmup but the input > circuits still need time to reach thermal equilibrium for most accurate > results > > >

Re: [time-nuts] Receiving the MSF time signal on cheap radio modules

. This allowed phase tracking receivers to correctly work again. Did MSF finally go to a BPSK signal format? I heard they were considering that. regards Paul WB8TSL On Tue, Feb 6, 2018 at 4:26 PM, Poul-Henning Kamp <p...@phk.freebsd.dk> wrote: > > In message <a2b31a8c

Re: [time-nuts] Heathkit GC 1000 Most Accurate Question

Exactly they are the small open air pots. Just one possibility along with the other good suggestions mentioned. Regards Paul WB8TSL On Tue, Feb 6, 2018 at 7:29 AM, Dave B via time-nuts <time-nuts@febo.com> wrote: > > > Bill > > I see the manual is online for the GC1000. >

Re: [time-nuts] Heathkit GC 1000 Most Accurate Question

I just realized there is also a 100 Hz decoder also u402. Both use the typical open air 1 turn pots. They get cranky with age. Regards Paul. On Mon, Feb 5, 2018 at 2:48 PM, Brooke Clarke <bro...@pacific.net> wrote: > Hi: Bill > > Mine needed pretty much all the electrolytic caps r

Re: [time-nuts] Heathkit GC 1000 Most Accurate Question

Bill I see the manual is online for the GC1000. The 1KHZ tone decoder may be suspect in that its drifted off frequency. Its a little ne-567 chip with a pot. ne 567s were never all that great... Regards Paul On Mon, Feb 5, 2018 at 12:39 PM, Dave Daniel <kc0...@gmail.com> wrote: > Hi, Bi

Re: [time-nuts] PBS, Tue evening, The Secret of Tuxedo Park

Hello to the group. I did read the book several years ago. Its quite good and I had no idea about any of this. Sort of amazing. So the fact that PBS is doing a show on this is going to be good to watch tonight. Thank you for sharing. Regards Paul WB8TSL On Tue, Jan 16, 2018 at 1:08 PM, Azelio

Re: [time-nuts] Stable32 now available

Hello to the group. The Stable32 book arrived yesterday from Lulu and its as expected. Good quality at a reasonable cost. It also arrived far faster then the web site would have you believe. Regards Paul WB8TSL On Fri, Jan 5, 2018 at 10:13 AM, Dr. David Kirkby < drkir...@kirkbymicrowave.co

Re: [time-nuts] Identify RFTGM-II-XO Part

splitter to drive the various systems in the cel tower.. Regards Paul. WB8TSL On Wed, Jan 10, 2018 at 12:33 AM, Patrick Murphy <fgdhr...@gmail.com> wrote: > My recently purchased RFTGm-II-XO threw a fault today. When I opened it, > the unmistakable smell of something way too hot was

Re: [time-nuts] Reference input on HP counters

are phased lock. I actually look at each piece of HP gear and see whats going on. Lazy can get you in trouble as I learned. Regards Paul WB8TSL On Sun, Jan 7, 2018 at 10:21 AM, Jerry Hancock <je...@hanler.com> wrote: > I’m being a little lazy as I can check the schematics, but in the gener

Re: [time-nuts] Anyone have a working HP-113AR/BR Clock?

Jeremy I will speculate the noise simply was tolerated. At the time these would have been a pretty big to do. It was top line HP after all. Most likely other fans in the divider chains, receivers, scopes competed for attention. But that was a bit before my time. Regards Paul WB8TSL On Fri, Jan 5

Re: [time-nuts] HP 105B: Modern replacement for NiCad battery pack?

to consider a smarter modern charger. There seems to be all sorts of very nice boards out of China for little cost. Its amazing. If you go the alternate approach you may consider Lithium batteries. Drones seemed to have made a very nice market for batteries and smart chargers. Regards Paul WB8TSL On Fri

Re: [time-nuts] HP5065A AC-Amplifier (A7) Improved (?) version...

Do not seem to find it on the the KO4BB site at least yet. Regards Paul WB8TSL On Tue, Jan 2, 2018 at 11:56 AM, Ulf Kylenfall via time-nuts < time-nuts@febo.com> wrote: > Gentlemen, > I have assembled (what I hope is) an improved version of theA7 AC > Amplifier of the HP506

Re: [time-nuts] Stable32 now available

for a real book. Regards Paul WB8TSL On Tue, Jan 2, 2018 at 9:38 AM, Dr. David Kirkby < drkir...@kirkbymicrowave.co.uk> wrote: > On 2 January 2018 at 14:10, paul swed <paulsw...@gmail.com> wrote: > > > Jelen > > Thank you for informing us about Stable32. I have bee

Re: [time-nuts] Stable32 now available

Jelen Thank you for informing us about Stable32. I have been busy downloading details. I was surprised by the size of the use manual at some 348 pages. I believe I have a very long way to. I suspect we need a Stable32 for dummies book. Regards Paul WB8TSL On Tue, Jan 2, 2018 at 9:02 AM, Bob kb8tq

Re: [time-nuts] Stable32 now available

Is the code be available, or just the compiled binary? On Tue, Jan 2, 2018 at 6:05 AM, Magnus Danielson wrote: > Hi, > > Very cool. That I ended up paying for my copy is another thing. > > Now, the code needs to be maintained. I personally also would like to > see

Re: [time-nuts] question about HP 5601a harmonic generator

a pretty high price. Good luck Paul WB8TSL On Sun, Dec 24, 2017 at 1:42 PM, Richard (Rick) Karlquist < rich...@karlquist.com> wrote: > I extensively studied the 5061 harmonic generator when I > was designing the harmonic generator in the 5071A. > We are now going on 30 years

Re: [time-nuts] Oscilloquartz 8600-3 Disassembly pictures...

As comment mmdd is actually a windows behavior. If files are named in that manner they line up in the directory in order. 20171216 8603 pix 1-20. Minor but may be helpful. Regards Paul WB8TSL On Sun, Dec 17, 2017 at 8:55 AM, Attila Kinali <att...@kinali.ch> wrote: > On Sat, 16 Dec 2

Re: [time-nuts] Simple open source microcontroller solution to tune DDS needed

. Regards Paul WB8TSL On Wed, Dec 13, 2017 at 4:05 PM, Adrian Godwin <artgod...@gmail.com> wrote: > It's a bit bizarre that it uses Basic. I just remember my local ARC using > it as a project sometime ago. Possibly in the 20th century. :) > > > On Wed, Dec 13, 2017 at 9:03 PM, Ric

Re: [time-nuts] Simple open source microcontroller solution to tune DDS needed

. Additional note. The Arduino has SPi libraries and such to make 3 wire control interfaces for numbers of things like the everset clock chip. I have used these and I am by no means a great programmer. Regards Paul WB8TSL On Wed, Dec 13, 2017 at 3:30 PM, Bob kb8tq <kb...@n1k.org> wrote: > H

Re: [time-nuts] Oscilloquartz 8600-3 End of range...

Ulf when I went to the photobucket site yesterday it did the same. Not a good place to share any longer. I had wanted to see the pictures. Regards Paul WB8TSL On Wed, Dec 13, 2017 at 12:19 PM, Ulf Kylenfall via time-nuts < time-nuts@febo.com> wrote: > > Ed, > I am inclined to b

Re: [time-nuts] End of Range Oscilloquartz 8600-3

As much as the pictures are interesting the sites blasting out crazy amounts of ads Totally a problem. Touch anyone of them and off you go to whatever it was. Regards Paul WB8TSL On Tue, Dec 12, 2017 at 12:32 PM, Ed Palmer <ed_pal...@sasktel.net> wrote: > It sounds like yours is diffe

Re: [time-nuts] End of Range Oscilloquartz 8600-3

open or disassemble it, not with time-nuts around. We like the challenge. Hey bad is bad nothing to loose right? That opens the door to serious hacking. Regards Paul WB8TSL On Tue, Dec 12, 2017 at 2:59 AM, Ulf Kylenfall via time-nuts < time-nuts@febo.com> wrote: > > > Emaile

Re: [time-nuts] General Radio Model 723D Precision Oscillator (Tuning Fork)

to the tuning fork. Regards Paul WB8TSL On Sat, Dec 9, 2017 at 11:37 AM, paul swed <paulsw...@gmail.com> wrote: > Well we are kicking butt on 723 oscillators. I have the 1000 hz model and > found it at the MIT flea about June. > Bad rectifier section. Cap was good though I car

Re: [time-nuts] General Radio Model 723D Precision Oscillator (Tuning Fork)

and they are around $15 each. Its not the cost. The 3 I see are sort of unclear that they match my socket. I swear I actually have one. Some place here. Regards Paul WB8TSL On Sat, Dec 9, 2017 at 10:30 AM, Eric Scace <e...@scace.org> wrote: > Another fascinating tuning-fork standard

Re: [time-nuts] End-of-Range: Oscilloquartz OCXO 8600-3

Berts right about the 80C that seems high. But when I looked at the spec sheet no details. Regards Paul On Fri, Dec 8, 2017 at 1:35 PM, Bert Kehren via time-nuts < time-nuts@febo.com> wrote: > What about 80 C is that normal for an 8600? > Bert Kehren > > > In a message dat

Re: [time-nuts] End-of-Range: Oscilloquartz OCXO 8600-3

and its not the worst issue you will run into. Just maybe thats why you obtained the oscillator in the first place. Hey bad stuff is my friend. Regards Paul WB8TSL On Fri, Dec 8, 2017 at 11:31 AM, Jeremy Nichols <jn6...@gmail.com> wrote: > My HP-103AR frequency standard has a similar p

Re: [time-nuts] End-of-Range: Oscilloquartz OCXO 8600-3

I took a quick look at the spec sheet. It appears coarse adjustment is an option M and would actually be a pot. That speaks to another tuning diode for coarse? Or a pot on pot arrangement. That sounds ugly. Regards Paul WB8TSL On Fri, Dec 8, 2017 at 10:17 AM, Bob kb8tq <kb...@n1k.org>

Re: [time-nuts] Test WWV timecube against Cesium, Rubidium, MASER or other precision time (UT-1) metrology

, the moon and the satellites orbit. Now thats some serious math and thinking. Some place along the line other great stuff will work to mess with you. Regards Paul WB8TSL On Thu, Dec 7, 2017 at 8:48 AM, Patrick Barthelow <apollo...@gmail.com> wrote: > Hello Friends, > > I am picking up l

Re: [time-nuts] Rubidium freq standard - temperature

With some humor as I looked inside my egg I had replaced the caps also. So it is a common failure. Also note the chip is not a micro but an array or at least a state machine. Regards Paul WB8TSL On Thu, Nov 30, 2017 at 8:47 PM, paul swed <paulsw...@gmail.com> wrote: > Will forward tomo

Re: [time-nuts] Rubidium freq standard - temperature

mon 15 power rtn 16 + 5 note says .3A constant No RS 232 apparent and I have not gone inside to look. Maybe later today. But believe as others this is sort of pre-rs-232. Also no apparent EFC control. Regards Paul. WB8TSL On Fri, Dec 1, 2017 at 12:39 AM, Mark Sims <hol...@hotmail.com> wrote

Re: [time-nuts] Rubidium freq standard - temperature

Will forward tomorrow. Yes I recall my lamp voltage is also very good. On Thu, Nov 30, 2017 at 8:41 PM, Jerry Hancock <je...@hanler.com> wrote: > Paul, send whatever you have to clist <mailto:cl...@hanler.com> at hanler > (without the D) dot com > > Also, the caps

Re: [time-nuts] Rubidium freq standard - temperature

. Regards Paul WB8TSL On Thu, Nov 30, 2017 at 8:04 PM, Jerry Hancock <je...@hanler.com> wrote: > Paul, The units Gilbert gave me were TS-RFS. They are fairly large. The > physics end is about 5”x2”x2" and overall length about 9”. They lock > pretty quickly now that I’ve replace

Re: [time-nuts] Rubidium freq standard - temperature

check that. Regards Paul WB8TSL On Thu, Nov 30, 2017 at 6:22 PM, Jerry Hancock <je...@hanler.com> wrote: > I was able to get all 5 of these EG Rubidium Frequency Standards running > by replacing the caps as another member found. They have a large heatsink > on them, no fins,

Re: [time-nuts] Fast rise time pulser

It did make it to the post. Question. Rise and fall times are sub 40ps is that a typo in your email. Regards Paul WB8TSL On Mon, Oct 16, 2017 at 10:45 AM, BIll Ezell <w...@quackers.net> wrote: > I rushed out and ordered one, and I have to say, I'm impressed. > The test report it came

Re: [time-nuts] Fast Rise/Fall Time Pulser

and the same method. But look forward to other comments. Regards Paul WB8TSL On Tue, Oct 10, 2017 at 3:42 PM, Brooke Clarke <bro...@pacific.net> wrote: > Hi Larry: > > How does it work. > When I was working with microwave semis it was either a tunnel diode or a > Step Recovery Dio

Re: [time-nuts] Z3801A and Z38XX Issues

Its 7O1 thats how mine has always worked. Regards Paul WB8TSL On Mon, Sep 11, 2017 at 1:05 AM, Richard Solomon <w1...@outlook.com> wrote: > Not according to the manual, but then that could be my problem !! > > > 73, Dick, W1KSZ > > > Sent from Outlo

Re: [time-nuts] Restoration of a 5065A - Continued (Ulf Kylenfall)

this if the lamp lights and the system can be recovered. Just something to know about. I have done this several times on different FRS units. Wow now you have 2 5065s. Nice. Regards Paul WB8TSL On Tue, Sep 12, 2017 at 5:16 PM, Scott McGrath <scmcgr...@gmail.com> wrote: > I would say

Re: [time-nuts] Restoration of 5065A - continued...

So curious did that get the unit running?? Regards Paul WB8TSL On Mon, Sep 11, 2017 at 2:22 PM, Ulf Kylenfall via time-nuts < time-nuts@febo.com> wrote: > > When I mentioned redesign, it was the intention to copy the by HP updated > designinto a new Cad project (I use Cad

Re: [time-nuts] Z3801A and Z38XX Issues

I seem to remember its 19200, 7,O,1. Regards Paul WB8TSL On Sun, Sep 10, 2017 at 11:01 PM, Mark Sims <hol...@hotmail.com> wrote: > And remember that commands sent to the Z3801A end in Line Feed, not > Carriage Return. > ___ > time

Re: [time-nuts] Resoration of 5065A - continued...

I would simply slap a 741 into position to see how it behaves. Also check those zeners for +/- 14.7V. They go bad. Regards Paul WB8TSL On Mon, Sep 11, 2017 at 5:56 AM, Ulf Kylenfall via time-nuts < time-nuts@febo.com> wrote: > > Continuing my efforts to fix the 5065A... > > T

[time-nuts] E-Loran

Looks like the S. Koreans are pressing ahead with their e-Loran system. http://insidegnss.com/node/5598 'Old' tech never dies Paul G8GJA ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin

[time-nuts] Trimble Thunderbolt no longer determines the correct date  

accurately on the desktop Thunderbolt Monitor program. Many thanks! Paul, W9AC ___ 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] GPS Arctic graphs

Leo I had no idea that you had done this work. Pretty interesting. Amazing amount of weight and the fact that it ran for some 134 days. Thanks for sharing. Paul WB8TSL On Sun, Aug 27, 2017 at 3:18 PM, Leo Bodnar <l...@leobodnar.com> wrote: > Perhaps, completely unrelated and useless in

Re: [time-nuts] Eclipse

Bill Interesting on the water fall. To reverse the offsets. Take the difference of the frequency from the supposed center frequency. Then add it to to the supposed center frequency. Flip this process if I have it backwards. Regards Paul WB8TSL On Fri, Aug 25, 2017 at 8:02 PM, <bill.

Re: [time-nuts] (no subject)

It hasn't been discussed before that I can recall. But its a cold RB clock and though it stable its still a secondary reference. Bob your right its interesting that the sales locations are in China and India. Perhaps a larger opportunity for a RB reference today. Regards Paul WB8TSL On Sat, Aug

Re: [time-nuts] How well does GPS work in the Arcitic?

comment makes sense on the 90 degrees. I can see how that math would get tricky and its a general use-case that most likely someone said so what On the north pole in an aircraft you would most likely rarely ever be exactly at that point and in a plane it would not be all that long. Regards Paul

Re: [time-nuts] Ships fooled in GPS spoofing attack suggest Russian cyberweapon

This was referred to in my post (subject: 'Loran') on 8/8/17 and was a news item in 'Inside GNSS' and other journals before that. Didn't get many comments on my post :-( Must have used the wrong subject Paul G8GJA -Original Message- From: time-nuts [mailto:time-nuts-boun

Re: [time-nuts] Sharing a GPS Antenna

added an amplifier to correct for the 16 db of loss in the 8 port splitter. Most modern antennas have quite a bit of gain so with good feed line (I use 1/2" hardline) You may not need the amplifier. I am quite interested in your blitzertung perhaps we could correspond directly. Regards Paul W

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