[time-nuts] Looking for Vectron data sheet

2010-04-20 Thread wa1zms
Does any one have a copy of the datasheet or can point me to one for a Vectron 204-2556-3 10MHz OCXO? I am having no luck. Thanks in advance. -Brian, WA1ZMS ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com

Re: [time-nuts] HP 5061A problem

2008-08-18 Thread wa1zms
Per the last statement in the message below: "The danger running without a working ion pump, though, is that at eventually you'll damage the electron multiplier." Is it correct to presume then that the EM becomes covered in "cesium splatter" and thus the S/N output g

Re: [time-nuts] Checking accuracy of Rubidium standards

2008-11-08 Thread wa1zms
This sounds to be a very similar method that my Tracor 895A uses. Does that sound correct? -Brian, WA1ZMS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Neville Michie Sent: Saturday, November 08, 2008 5:09 PM To: Discussion of precise time and frequency

[time-nuts] Close-in phase noise question...

2008-12-15 Thread wa1zms
Looking for comment here... The background: I'm working on a sub mm-wave LO chain for a ham radio application. While chasing issues of close-in phase (ie: within 1KHz of RF carrier) by peeling the "layers of the onion", I'm starting to question the performance of the MMICs that are used as buffers

Re: [time-nuts] Close-in phase noise question...

2008-12-15 Thread wa1zms
John- I do agree with you. The pain is in the early stages of the LO chain. Since I'm planning to use QRSS CW (that's very slow speed Morse Code with very narrow demod bandwidths for non-hams on this reflector who may not be familiar with QRSS), the noise very close to the carrier become key. A

Re: [time-nuts] Close-in phase noise question...

2008-12-15 Thread wa1zms
I would assume that the bleeding takes place just after the first molecule has performed it's dissecting task. -- Original message from "J. L. Trantham, M. D." : -- > I really enjoy reading the mail on this group, but I thought it was the > 'front molecule on the cut

Re: [time-nuts] Close-in phase noise question...

2008-12-15 Thread wa1zms
Bruce- OK... So, linear operation does therefore seem to be the preferred way to operate these MMICs rather than operation into compression. That's what I seem to be observing if only because my final RF frequency is so high and RX bandwidth so low. Having said that, if my frequency synthesis sch

[time-nuts] Close-in phase noise question...more info...

2008-12-16 Thread wa1zms
First, thanks for the replies from all. More info on the LO chain: 1) 5MHz Wenzel OCXO <--Custom Osc for me. 2) MSA-1105 buffer MMIC and lumped LPF 3) 5MHz to 10MHz 1N5711 diode based doubler 4) MSA-1105 buffer and lumped LPF 5) 10MHz to 20MHz 1N5711 diode based doubler 6) 20MHz BPF 7) 20MHz dri

Re: [time-nuts] Close-in phase noise (long reply)

2008-12-16 Thread wa1zms
gain stages are not running near compression. I do still agree with your earlier comment about getting the most from that portion of the chain. -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]on Behalf Of John Miles Sent: Tuesday, Dec

Re: [time-nuts] Close-in phase noise (long reply)

2008-12-17 Thread wa1zms
Luis- Only beacuse I was more familiar with balanced doublers, and felt that the x4 would need tougher filtering. The balanced doublers also have much better conversion efficiency, thus fewer gain stages. Or so I think. Besides, I had drawers full of 1N5711 diodes, & toriods! -Brian -

[time-nuts] Z3801A & LED display...

2008-12-31 Thread wa1zms
59:59 23:59:60 00:00:00 00:00:01 I'll try and snag a few seconds of video from the DVD around the event if anybody is interested. Had WWV on in the background but was not mic'ed very well so sound is low. -Brian, WA1ZMS ___ time-nuts maili

[time-nuts] LORAN-C update....

2009-03-12 Thread wa1zms
Just noticed this.FYI Not sure how this fits in with eLORAN efforts. The Operating Status of LORAN-C LORAN-C provides coverage for maritime navigation in U.S. coastal areas. It provides navigation, location, and timing services for both civil and military air, land and marine users. LOR

Re: [time-nuts] DMTD phase shifter

2009-07-25 Thread wa1zms
bruce- do you have a favorite ZCD schematic that you can share? many thanks in advance! -Brian, WA1ZMS On Jul 25, 2009, at 9:36 AM, Bruce Griffiths wrote: Bert If you intend to use a USB interface then its probably essential to use an optical isolator or equivalent between the zero

Re: [time-nuts] hp5061a/b no I beam current

2009-10-19 Thread wa1zms
I used the LF coil to test for beam I when I found a used tube. I was able to confirm it had "Cs emission". -Brian, WA1ZMS On Oct 19, 2009, at 10:28 PM, serv...@frequencystandards.com wrote: 3. hp5061a/b no I beam current (paul swed) Message: 3 Date: Sun, 18 Oct 2009 12:25:30

Re: [time-nuts] 5061A questions

2009-12-10 Thread wa1zms
one! :-) -Brian, WA1ZMS -- Original message -- From: "Morris Odell" > > Hi all, > > I recently picked up another 5061A (my second now, I'm becoming a real > Time-Nut :-). The tube seems to be OK, it started up nicely and has been >

Re: [time-nuts] From GPS World - Lightsquared ...

2011-02-09 Thread wa1zms
If you think you're being tracked by the police or a private-eye (ie: ugly divorce!) one might think that a GPS jammer would be to their advantage. Buy one on e-bay and you think all is OK. -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts

Re: [time-nuts] GPS interference and history...

2011-06-11 Thread WA1ZMS
bob- you coming to greylock? -Brian, WA1ZMS On Jun 11, 2011, at 12:13 AM, bownes wrote: That small hemispherical antenna could also have been 900mhz. I have one here @ home that is a combined gps/900mhz antenna from an ambulance tracking system. On Jun 10, 2011, at 22:01, Hal

[time-nuts] Austron 6016 Multiplier/phase shifter

2005-03-16 Thread wa1zms
Does anyone have any information on an Austron 6016? -Brian, WA1ZMS ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

RE: [time-nuts] 5061 Cs frequency shift with long time constant?

2005-04-05 Thread wa1zms
ave a couple 1uF WIMA caps that I could send you. -Brian, WA1ZMS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of John Ackermann N8UR Sent: Tuesday, April 05, 2005 9:53 AM To: Discussion of precise time and frequency measurement Subject: [time-nuts] 50

RE: [time-nuts] Cesium DOES Drift, not

2005-04-20 Thread wa1zms
500Hz indicates possible magnetization. I have no knowledge if the FTS tubes have an LF coil. -Brian, WA1ZMS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Chuck Harris Sent: Wednesday, April 20, 2005 9:32 PM To: Discussion of precise time and frequency measur

[time-nuts] HP-5370B question

2005-05-02 Thread wa1zms
shoot something that isn't really broken. Although a hot heatsink isn't good for reliability. All power supply voltages at the labeled internal test points seem fine. I do not have a schematic or service manual on hand. Thanks in advanc

[time-nuts] Green Light club...

2006-01-08 Thread wa1zms
vance, Brian, WA1ZMS ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Re: [time-nuts] Fw: Green Light club...

2006-01-08 Thread wa1zms
Thank you so much! That is exactly what I needed. -Brian, WA1ZMS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Masamichi Tsuchiya Sent: Sunday, January 08, 2006 8:45 PM To: time-nuts@febo.com Subject: [time-nuts] Fw: Green Light club... - Original

Re: [time-nuts] OSA 8600 Oscillators

2006-03-15 Thread wa1zms
Hans- Can you advise the price per unit? Thank you in advance, Brian Justin, WA1ZMS Forest, VA USA -- Original message -- From: "Hans H. Jucker" <[EMAIL PROTECTED]> > For sale OSA 8600 BVA Oscillators (see specs.: > http://www.oscilloquartz

Re: [time-nuts] OSA 8600 Oscillators

2006-03-15 Thread wa1zms
this list with more first hand experience can give us more details about the subject. -Brian, WA1ZMS -- Original message -- From: "Bill Hawkins" <[EMAIL PROTECTED]> > The PDF says that nothing contacts the crystal, which implies capacitive > cou

Re: [time-nuts] 10811 Extra Lagging etc

2006-06-20 Thread wa1zms
Rick- You've peaked my interest. Has anyone ever collected any data on 10811 frequency vs. humidity or dew point? -Brian, WA1ZMS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Richard (Rick) Karlquist Sent: Tuesday, June 20, 2006 1:03 AM To: Discussi

Re: [time-nuts] HP 58540A Phase Noise Improvements

2006-07-07 Thread wa1zms
Paul- Are you trying to improve the far-out phase noise of the IC-7800 to help with things like RX dynamic range or are you trying to improve the very close-in noise for narrow bandwidth modes like WSJT? The two can require different solutions. -Brian, WA1ZMS -- Original message

[time-nuts] Cs beam current vs tube life

2006-08-02 Thread wa1zms
Should I bother switching to the low temperature mode to extend the tube life or just let it run as is? (I know the noise for certain measurement periods would increase in low-mode) Anybody have a feel for what possible extension in tube life can be had from the low-temp mode? Thanks in advance

Re: [time-nuts] 5 MHz Frequency Doubler

2006-10-26 Thread wa1zms
s/134-5_to_10MHz_doubler_Ver_II.gif -Brian, WA1ZMS > On Wed, 25 Oct 2006 23:13:55 -0700, "Christopher Hoover" > <[EMAIL PROTECTED]> wrote: > > > > >Hey 'nuts, > > > >I'm looking for a good design for a 5 MHz frequency doubler. > > > >The Wenz

Re: [time-nuts] 5 MHz Frequency Doubler

2006-10-26 Thread wa1zms
noise degredation of the multiplier, based on the result at 241GHz it cannot be much more worse than 20Log(n), or 6dB in this case. -Brian, WA1ZMS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Thursday, October 26, 2006 7:05 PM To

[time-nuts] Looking for manual....

2006-11-11 Thread wa1zms
I'm looking for a copy (paper or electronic) of a manual for an Austron 6016 Frequency Multiplier. Can anyone help? Thanks in advance, Brian, WA1ZMS ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Re: [time-nuts] Austron 6016

2006-11-12 Thread wa1zms
Thanks Colin. I forgot to check with her! Duh! -Brian, WA1ZMS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Colin Bradley Sent: Sunday, November 12, 2006 11:06 AM To: time-nuts@febo.com Subject: [time-nuts] Austron 6016 Brian: I would suggest that you

Re: [time-nuts] Austron 2202

2007-01-15 Thread wa1zms
s over $200 USD. The same change took place on E-ba* UK last month I understand. -Brian, WA1ZMS -- Original message -- From: "Bruce Lane" <[EMAIL PROTECTED]> > Huh? I just checked one auction, just to see if this was accurate, and >

Re: [time-nuts] TAPR Open HArdware License -- Public Comment Period

2007-02-12 Thread wa1zms
PHK- Be carefull hereI seem to recall John's day-job is a lawyer! :-) -Brian -- Original message -- From: "Poul-Henning Kamp" <[EMAIL PROTECTED]> > In message <[EMAIL PROTECTED]>, John Ackermann N8UR writes: > > >For the last several months, I've been worki

Re: [time-nuts] Free to good home.....

2011-08-06 Thread wa1zms
I'm sorry. Somebody else beat you to it. :-( Thank you, however. -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]On Behalf Of dlewis6767 Sent: Saturday, August 06, 2011 5:53 PM To: Discussion of precise time and frequency measur

[time-nuts] Dead CBT

2011-08-26 Thread wa1zms
Paul- Check rcvd. Thanks! I your post where you wnted to talk to Corby. Maybe he can work some life out of that tube. Please let me know. Alsoif you ever cut it open, remember to send me pix! 73, -Brian, WA1ZMS ___ time-nuts mailing list

Re: [time-nuts] Re; Audiophoolery

2007-04-20 Thread wa1zms
en't given the option to improve our S-parameter measurements with such an "ingenious improvement"! Maybe it only works for "audio" and not for RF.Yeah...that must be it! :-) -Brian, WA1ZMS ___ time-nuts mailing list time

Re: [time-nuts] 50 vs 75 ohm cables

2007-05-10 Thread wa1zms
was a compromise. -Brian, WA1ZMS -- Original message -- From: Peter Vince <[EMAIL PROTECTED]> > > I came across some telecom equipment the other day which had > reference outputs marked as 75 ohms. I work in television, not > telecoms, and we use

Re: [time-nuts] Some Ham Gear Measurements

2007-06-02 Thread wa1zms
Excellent results and very interesting. Good work! Thanks! -Brian, WA1ZMS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of John Ackermann N8UR Sent: Saturday, June 02, 2007 11:39 AM To: Discussion of precise time and frequency measurement Subject: [time

Re: [time-nuts] Time may not exist

2007-07-27 Thread wa1zms
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] Interesting article. But I see implications to the idea of "time=money". -Brian, WA1ZMS -- Original message -- From: WB6BNQ <[EMAIL PROTECTED]> > > Tom, > > Very interes

Re: [time-nuts] Time may not exist

2007-07-27 Thread wa1zms
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] I told a fellow co-worker about this thread today and his comments were: It's true that "Time = Money", but. "Wife = Anti-Money" -Brian, WA1ZMS -Original Message- From: [EMAIL PROTECTED]

Re: [time-nuts] 10811A

2007-09-16 Thread wa1zms
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY That is a great book. A co-worker of mine has a copy but he will not part with it! I have searched, but have yet to locate my own copy. -Brian, WA1ZMS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL

Re: [time-nuts] Improving the stability of crystal oscillators

2007-10-10 Thread wa1zms
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Try DigiKey pn: 235-1123-ND for a simple PTC Thermistor that can be soldered to the xtal case if one were so inclined. Do so at your own risk to the xtal! -Brian -- Original message -- From:

[time-nuts] LORAN-C

2007-11-12 Thread wa1zms
rror when using it as the measurement system against an HP-5061 or Z3801A. Can someone confirm that the E10 to E13 errors are typical of the 2100F? And what ultimate long-term stability have others been able to achieve using LORAN as a reference? Thanks in advance, -Brian, WA1ZMS -Origina

Re: [time-nuts] Of rubidium life and piggy-bank anemia....

2007-11-29 Thread wa1zms
But TVB has added: "That three clocks are better than two.so measure, measure, measure!" Or some words to that point. -Brian, WA1ZMS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Chuck Harris Sent: Thursday, November 29, 2007 9:35 PM To:

Re: [time-nuts] NLTL comb generators going away...

2007-12-29 Thread wa1zms
My 2 cents At what freq offset are the measurments being made? (NLTL vs. SRD) Is it that the SRD has more flicker noise and thus is worse than 20log(n) for close-in noise? Or does the SRD have a wideband noise floor that is worse than 20log(n)? -Brian, WA1ZMS -Original Message

Re: [time-nuts] NLTL comb generators going away...

2007-12-29 Thread wa1zms
Thanks John! I remember seeing the original article in 2006, but did not recall the details. -Brian, WA1ZMS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of John Miles Sent: Saturday, December 29, 2007 12:16 PM To: Discussion of precise time and frequency

[time-nuts] 5060A question...

2008-01-01 Thread wa1zms
d in epoxy. Do other 5060 owners have the same symptoms? -Brian, WA1ZMS ___ 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] 5060A question

2008-01-07 Thread wa1zms
not heard much. -Brian, WA1ZMS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Frequency Standards & Services Sent: Wednesday, January 02, 2008 1:21 PM To: Time Nuts List Subject: Re: [time-nuts] 5060A question This was one of the reasons that HP even

Re: [time-nuts] 5060A acoustic noise issue

2008-01-08 Thread wa1zms
Corby- That's interesting to know that somebody has performed the conversion at least once before. I have a 5060 "donor chassis" and maybe that would be the one to try and see how I might fit an A11 module in place of the A20. Thanks! -Brian, WA1ZMS -Original Message---

Re: [time-nuts] HP10811 problem - wrong frequency

2008-01-13 Thread wa1zms
units a part, I was able to perform an S11 measurement of each xtal to confirm that the first unit did in fact act like an open circuit. I even swapped xtals to confirm that it was the xtal itself. So I guess a dead xtal is also possible. -Brian, WA1ZMS -Original Message- From: [EMAIL

[time-nuts] Temex rubidium

2008-02-03 Thread wa1zms
/user manual already.) Has anyone else done this type of repair on such a model? Thanks in advance, -Brian, WA1ZMS/4 ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and

Re: [time-nuts] Temex rubidium

2008-02-03 Thread wa1zms
fore I open it. Otherwise, I'll be drawing my own. Thanks. -Brian, WA1ZMS/4 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Sunday, February 03, 2008 5:42 PM To: time-nuts Subject: Re: [time-nuts] Temex rubidium I would report

[time-nuts] CBT EOL

2008-02-04 Thread wa1zms
normal EM voltage might help keep it on life-support. -Brain, WA1ZMS/4 ___ 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] CBT EOL

2008-02-04 Thread wa1zms
the supply is already at the -2500v limit to match the spec on the tube. -Brian, WA1ZMS/4 -- Original message -- From: "Dave Carlson" <[EMAIL PROTECTED]> > > Hello, > > Speaking not from a physicist perspective, but from being in the bus

Re: [time-nuts] TAC32 & Z3801A

2008-04-04 Thread wa1zms
Rick- I'd be willing to loan you a Z3801A if you'd like, to help you write some software. -Brian, WA1ZMS/4 -- Original message from "Rick Hambly (W2GPS)" <[EMAIL PROTECTED]>: -- > John, > > If I had a Z3801A I might b

Re: [time-nuts] (no subject)

2008-04-14 Thread wa1zms
how "good" the CW note sounds. If you're happy with it, then its use as a LO for a transverter is likely OK. Also remember that modes like PSK31, WSJT, etc. will want slightly better LO phase noise to function well. But the CW listening test is a simple easy place to st

Re: [time-nuts] Disciplining Rubidium

2008-04-23 Thread wa1zms
But doesn't it matter what your definition of "short term" really is? I have some Wenzel OCXOs that hit 5E-13 for a 1 second tau. No Rb or Cs or Z3801 that I have running get that good at 1 sec tau! Over 10,000 is a different matter, however. -Brian, WA1ZMS -Original Me

Re: [time-nuts] Disciplining Rubidium

2008-04-24 Thread wa1zms
MHz is the sweet spot for lowest close-in phase noise of an XO. Other technologies may very well change that in future, but for best close-in noise a 5MHz XO seems to be the best today. -Brian, WA1ZMS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of John

[time-nuts] Looking for HP5085A info...

2008-04-28 Thread wa1zms
Does anyone have a manual or at least a schematic for an HP-5085A back-up power supply? I searched the web and didn't find anything. That doesn't mean it's there, just that I was unable to find it! Thanks in advance, -Brian, WA1ZMS __

[time-nuts] testing thanks to Yahoo....please ignore.

2014-04-20 Thread wa1zms
-Brian, WA1ZMS ___ 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] GPS & solar-flare

2013-05-14 Thread Brian, WA1ZMS
mpact was the outage may or may not have been an issue. Did any Time-Nuts notice any complete GPS outages on May 12th? -Brian, WA1ZMS ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/lis

Re: [time-nuts] Interesting paper: Don't GPSD' your Rb...

2012-05-03 Thread Brian, WA1ZMS
ination of both. The choice of loop BW depends on what Tau you want and what grade of Rb you are trying to improve. But as PHK said, the article was a bit thin on details. -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Azel

Re: [time-nuts] Interesting paper: Don't GPSD' your Rb...

2012-05-03 Thread Brian, WA1ZMS
y...he didn't last long in his job and left the company. -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Bob Camp Sent: Thursday, May 03, 2012 7:42 PM To: Discussion of precise time and frequency measurement Subject:

Re: [time-nuts] ACTS leap second caught!

2012-06-30 Thread Brian, WA1ZMS
in VA as of last night who have no commercial utility power. Could be days before we get AC power back! So far, my generator is keeping parts of the house cool as well as the ham shack. -Brian, WA1ZMS/4 Forest, VA On Jun 30, 2012, at 8:05 PM, Scott Newell wrote: > National Institute

Re: [time-nuts] US 5065A standby battery cell source?

2012-07-01 Thread Brian, WA1ZMS
A US East Coast chain of stores called Batteries Plus can sell you cells and spot weld them in any almost any way you want. At least my local store can do that here in Virginia. -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On

[time-nuts] [OT]: HP-5061A and a dust bunny.....

2012-07-08 Thread Brian, WA1ZMS
was also a dead rabbit! BTW….All 3 cats have been interviewed and none will admit to being involved in any way. -Brian, WA1ZMS/4 Forest, VA ßwhere the AC mains are back on and the venting of the shack/lab continues with an outside air temp of 38C. No kidding! What’s worse the heat or

[time-nuts] Lightsquared questionfor SFO area....

2012-07-27 Thread Brian, WA1ZMS
Does anyone know if there is ANY recent active Lightsquared testing taking place in the SFO area of the US? I'm dealing with a day-job issue with GPS clocks in the Bay Area showing "GPS unlocked" errors from 3rd party equipment.

Re: [time-nuts] Lightsquared questionfor SFO area....

2012-07-27 Thread Brian, WA1ZMS
emote reporting from techs out in the field and their daily reports and conference calls. So I just need to "due engineering diligence" as I try and help them. I expect my butt will be on a plane next week unless I can identify a 3rd party vendor equipment problem. THANKS! -Brian, WA1Z

Re: [time-nuts] Lightsquared questionfor SFO area....

2012-07-27 Thread Brian, WA1ZMS
pm my time will produce more date. -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of gandal...@aol.com Sent: Saturday, July 28, 2012 2:27 AM To: time-nuts@febo.com Subject: Re: [time-nuts] Lightsquared questionfor SFO

[time-nuts] FRK specs.....

2012-08-11 Thread Brian, WA1ZMS
tack up today? I'm looking to buy an Rb that's better than my LPROs and other models. But I do not own an FRK-H. Looking for comments, please. Thanks in advance, -Brian, WA1ZMS ___ time-nuts mailing list -- time-nuts@febo.com To unsubscrib

Re: [time-nuts] FRK specs.....

2012-08-12 Thread Brian, WA1ZMS
Thanks Tom. I agree, the SRS seems to be the best overall Rb except maybe on old HP if one is willing to spend about the same price on a 20 year old unit. The SRS units I bought for work were only $2700 with chassis, rack ears and multiple outputs. -Brian, WA1ZMS On Aug 12, 2012, at 3:17

Re: [time-nuts] FRK specs.....

2012-08-12 Thread Brian, WA1ZMS
Me too, please. -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of dlewis6...@austin.rr.com Sent: Sunday, August 12, 2012 2:55 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] FRK specs

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

2012-08-18 Thread Brian, WA1ZMS
t you have into it. Besides...they make a good all-in-one box that you can play around with ext locking and learn. And remember"Experience is something you always get, AFTER you needed it!" :- ) -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [mailto:time-n

[time-nuts] {OT} e-mail testing only....

2012-08-27 Thread Brian, WA1ZMS
oud either. MY DEEPEST AND SINCERE APPOLOGIES TO ALL! I am embarrassed. My first and only hack in 20+ years of e-mail. So I guess I was overdue. Yahoo/AT&T today. When will G-Mail get hit? :- ) Life in a modern spam rich world. 73, -Brian, WA1ZMS (If you don't see th

Re: [time-nuts] HP10514B Mixer Terminations

2012-09-09 Thread Brian, WA1ZMS
re-amp. So each application of a mixer can often be based around what you are doing with it. Each time I use one, I learn a new fact! :-). Great hobby! -Brian, WA1ZMS/4 On Sep 9, 2012, at 4:41 PM, Bruce Griffiths wrote: > David Kirkby wrote: >> On 9 September 2012 18:2

[time-nuts] HP OCXO in 5016A.....

2012-09-11 Thread Brian, WA1ZMS
not yet a member of the "Green Light Club" in that the continuous operation light fails to light. The control loop appears to try and slew the OCXO way off frequency. My best guess is a defective A7 AC amp module. Time to trouble shoot! :- ) Comments welcome.

Re: [time-nuts] HP OCXO in 5016A.....

2012-09-11 Thread Brian, WA1ZMS
loop is closed. Could be a clue. Time to get it up "on- blocks" on the bench and see just what is going on. Thanks to all! :-) -Brian, WA1ZMS -Original Message- From: J. L. Trantham [mailto:jlt...@att.net] Sent: Tuesday, September 11, 2012 6:07 PM To: wa1...@att.net; '

Re: [time-nuts] Javad Letter to FCC...

2012-09-25 Thread Brian, WA1ZMS
He seems to give no specs on group delay. That is very critical for timing applications, but not much of an issue for your iPhone if you don't mind yet another 10m of error. My 2 cents... -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts

Re: [time-nuts] Austron Model 6016 Frequency Multipler - free to a good home

2012-09-26 Thread Brian, WA1ZMS
I have one of those myself. I have been looking for a schematic. Does anybody have one? Better yet, a full manual! -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Louis Mamakos Sent: Wednesday, September 26, 2012 2:40

Re: [time-nuts] GPS Jammer

2012-10-03 Thread Brian, WA1ZMS
Let me just say that that's flea power! I saw some 80watt jammers being sold for movie theaters and churches. There is some very "black market" items from China, via Hong Kong and can arrive at your doorstep in just 4 days via DHL! What's out there would scare you. Been dealing with the fall ou

Re: [time-nuts] 5071A Cs Oven

2012-10-04 Thread Brian, WA1ZMS
en run the risk of arcing in the E-mult and an issue of burning up the resistor divider stack that I believe is part of the E-mult. I can see it now.. an end-of-life Cs tube that needs 35kV on the E-mult to get any beam current to work with! : -) -Brian, WA1ZMS On Oct 4, 2012, at 3:41 PM,

Re: [time-nuts] 5071A Cs Oven

2012-10-04 Thread Brian, WA1ZMS
an H-MASER then I'd be in Time-Nut's Nerdvana! -Brian, WA1ZMS On Oct 4, 2012, at 4:59 PM, paul swed wrote: > Brian > Funny you mention the dirty emult. At the time I was wondering and if there > was any insane way to get the Cs off the e multiplier. HV to ground or > somethin

[time-nuts] Free to good home.....

2011-08-06 Thread Brian, WA1ZMS
ld like to US address only if possible. You pay shipping. Pleaee contact off-list if interested. -Brian, WA1ZMS/4 Forest, VA ___ 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] Free to good home.....FOUND A HOME

2011-08-06 Thread Brian, WA1ZMS
The CBT has found a new home. -Brian, WA1ZMS On Aug 6, 2011, at 12:03 PM, "Brian, WA1ZMS" wrote: > Cleaning out my storage area. > > I have a know dead HP 05060-6090 CBT. SN: 1506A2030. Failure is hard and is > one of the heating wires. Failed due to mechanical sh

[time-nuts] Looking for.....

2011-08-27 Thread Brian, WA1ZMS
y-job around some RF simulcast tranmissions. Thanks in advance. Contact off list please. -Brian, WA1ZMS ___ 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 instruc

[time-nuts] synch for pendulum clock....

2011-12-11 Thread Brian, WA1ZMS
that, I can synthesize a pulse train from one of the 10MHz lab clocks to drive the electromagnets to cause a subtle synch at the end(s) of the pendulum travel. The pulse train freq is custom for a given clock. Anyway.. that's my scheme for now. Feedback welcome. -Brian, W

Re: [time-nuts] synch for pendulum clock....

2011-12-11 Thread Brian, WA1ZMS
Thanks guys. Got the info I had been looking for. This group is a great resource! Only purpose for this project is so that the Westminster clock chimes at the same exact moment at the GPS driven UTC LED display in the lab shows the quarter hour. Why Why not! :- ) -Brian, WA1ZMS

Re: [time-nuts] synch for pendulum clock....

2011-12-11 Thread Brian, WA1ZMS
ment racks I have and see that at least the minute's digits read either: 00, 15, 30, or 45. And FWIWthe LED display is driven by the NMEA data coming out of the GPS RX inside a Z3810A. How's that? -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [m

[time-nuts] Question.....

2011-12-14 Thread Brian, WA1ZMS
Brian, WA1ZMS ___ 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] FE-5680A dumb question...

2012-01-03 Thread Brian, WA1ZMS
My E-bay FE-5680A finally arrived. (4weeks later) Of the pins on the DB-9 connector, which one is the RF output? The manual only talks about an SMA output. I know this has been talked about before, but I cannot find the thread. Thanks in advance & sorry for bandwidth, -Brian, WA

Re: [time-nuts] FE-5680A dumb question...

2012-01-04 Thread Brian, WA1ZMS
Thank you though. Got it working fine thanks to all the answers and help! -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of gonzo . Sent: Wednesday, January 04, 2012 2:18 AM To: time-nuts Subject: Re: [time-nuts] FE-5680A

Re: [time-nuts] FE-5680A Mechanical Question

2012-01-11 Thread Brian, WA1ZMS
My "rivets" were tiny Torx screws. -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of J. L. Trantham Sent: Wednesday, January 11, 2012 9:22 PM To: 'Discussion of precise time and frequency measurement'

Re: [time-nuts] 15 Seconds error...??

2012-01-16 Thread Brian, WA1ZMS
GPS has its own time scale. Part of the GPS data stream contains the number of seconds that GPS and UTC differ by. -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Dan Rae Sent: Monday, January 16, 2012 7:21 PM To

Re: [time-nuts] FE-5680A what is the size of the Torx??

2012-01-17 Thread Brian, WA1ZMS
I used a T7 bit for mine. -Brian, WA1ZMS On Jan 17, 2012, at 6:24 PM, "Paul F. Sehorne" wrote: > Nope. Looked at them with a jeweler's loupe. They are Torx. > > On 1/17/2012 5:13 PM, Peter Gottlieb wrote: >>Most likely they are 1/16" hex. >>

Re: [time-nuts] Rubidium Performance

2012-02-03 Thread Brian, WA1ZMS
Thanks John! -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of John Ackermann N8UR Sent: Friday, February 03, 2012 9:41 PM To: Time-Nuts Subject: [time-nuts] Rubidium Performance Someone earlier today made the point

Re: [time-nuts] Removing thermal tape residue?

2012-02-11 Thread Brian, WA1ZMS
FWIWI used denatured alcohol and acetone. Just be sure to wear chemical safe gloves and plenty of shop rags. But it comes right off. Fumes are bad too. Let the rags dry out before you put them in the trash. -Brian, WA1ZMS -Original Message- From: time-nuts-boun...@febo.com

[time-nuts] Z3801A......????

2012-02-17 Thread Brian, WA1ZMS
Bob- I have a spare that i need to test and make sure all is OK. Any interest? Make me an offer and it's yours after I get time to test is out. -Brian, WA1ZMS On Feb 17, 2012, at 4:56 PM, bownes wrote: ___ time-nuts mailing list -- time

Re: [time-nuts] Z3801A......????

2012-02-17 Thread Brian, WA1ZMS
Sorry for band width to group! Stupid iPhone! :-) -Brian, WA1ZMS On Feb 17, 2012, at 5:15 PM, "Brian, WA1ZMS" wrote: > Bob- > > I have a spare that i need to test and make sure all is OK. > > Any interest? > Make me an offer and it's yours after I get ti

[time-nuts] Interesting video....well done....

2014-03-24 Thread Brian, WA1ZMS
I found this to be a nice video for the non-Time Nut to try and understand what & why about time.. http://knowmore.washingtonpost.com/2014/03/17/this-man-knows-what-time-it-is -but-not-what-time-is/ -Brian, WA1ZMS/4 ___ time-

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