[time-nuts] Introduction & GPSDO Question

I'm not sure if Heather v5 works with all of those those receivers (I think you have what us known as a "UCCM" receiver... these are pulls from telecom equipment). If you are on Windows, you might want to try the v6 Beta code. Install the v5 from ke5fx.com, then download the v6 .exe from

Re: [time-nuts] Introduction & GPSDO Question

On Thu, Apr 19, 2018 at 1:47 PM, Tom Koza wrote: > Hello Everyone, > > My name is Tom and my amateur callsign is WB6FYR, I'm a newcomer to this > group. > > I'm mainly interested in creating a reasonable 10mHz standard for my > various pieces of test equipment here at home. To

Re: [time-nuts] Introduction & GPSDO Question

I'm mainly interested in creating a reasonable 10mHz standard for my various pieces of test equipment here at home. To that end I've purchased and received an Ebay "Trimble Inside" GPSDO unit, described as model 57963. No instructions or manual were included with the hardware. The unit has

Re: [time-nuts] Introduction & GPSDO Question

somewhere indicates a lock. http://www.ke5fx.com/heather/readme.htm -=Bryan=- From: time-nuts <time-nuts-boun...@febo.com> on behalf of Tom Koza <wb6...@gmail.com> Sent: April 19, 2018 1:47 PM To: time-nuts@febo.com Subject: [time-nuts] Introduc

[time-nuts] Introduction & GPSDO Question

Hello Everyone, My name is Tom and my amateur callsign is WB6FYR, I'm a newcomer to this group. I'm mainly interested in creating a reasonable 10mHz standard for my various pieces of test equipment here at home. To that end I've purchased and received an Ebay "Trimble Inside" GPSDO unit,

Re: [time-nuts] Introduction ... HP 3586

I concur. That is a great write-up on the 3586. However, note that there are at least three revisions of that document (version 2.0, 2004, version 2.1, 2007 and 2.2, 2007). Version 2.1 (at least in the copy that I have) is missing the front panel figures in section 4 and the schematic figures

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

Tisha Welcome to the group. The 3586s are very nice I have more then a few. That said get the nicad battery out of the system ASAP. The charging circuit is very poor and overcharges them. (Pretty odd for HP) When they leak they destroy the power supply regulator board. It is a mess to clean up and

Re: [time-nuts] Introduction ... HP 3586

I highly recommend the Practical Guide created by Bill Feldmann, N6PY (sk, 2007), found in the KO4BB repository. — NOTE: Check for damage by the NiCad battery !! —- A PRACTICAL GUIDE FOR USING THE HP 3586A/B/C SELECTIVE LEVEL METER Expanded Version, (Version 2.2), September 2007 by Bill Feldmann,

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

Yep, 3586B put me in the top list two times I used it along with a calibrated SpectrumLab + PC combo. I’d like to use my IC-7610 this time, have to figure all that out I guess as the April test rapidly approaches UTC time I remember now. Regards, Jerry > On Mar 29, 2018, at 5:21 AM, John

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

The impedance mismatch with the A or B models is't a real issue unless you're doing precise amplitude measurements.  Lots of folks use them for FMT work without issues. There are adapters available or buildable to deal with the odd Telco connectors. John On Mar 29, 2018, 3:04 AM, at 3:04 AM,

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

;time-nuts-boun...@febo.com> On Behalf Of Tisha Hayes Sent: Wednesday, March 28, 2018 9:50 PM To: time-nuts@febo.com Subject: [time-nuts] Introduction, new list member, Ms Tisha Hayes, AA4HA Greetings to all of the time-nuts on this list. I too have an interest (obsession?) with precision fre

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

On Wed, Mar 28, 2018 at 9:49 PM, Tisha Hayes wrote: > Perry and I would make our pilgrimages to the Huntsville Ham Fest and > usually I ended up buying equipment from him. One of the items he sent my > way was an HP 3586B that I am finally beginning to put to use. > Hmm

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

Greetings to all of the time-nuts on this list. I too have an interest (obsession?) with precision frequency measurement. I have known, visited and had dinner with Perry Sandeen (also a list member) while he lived in Tennessee where we shared a common interest in the beloved R-390A receiver and

Re: [time-nuts] Introduction

Enrico, Nice additional labs. For short cables, the start pulse can still affect the stop pulse, potentially give it worse slew-rate as the cross-talk superpositions on top of the actual signal. Such cross-talk should be less pronounced as you have lower slew-rate on the start-pulse, but

Re: [time-nuts] Introduction

Dear Enrico, On 02/24/2016 06:55 AM, Enrico Bellotti wrote: Hello to all, first of all, thank you for the great and useful work that the time-nuts have done over the years. Welcome! I have finally been able to gather all my counters (HP5335A, HP51131A, HP5370A, HP5370B #1, HP5370B #2) and

Re: [time-nuts] Introduction

I've found with my HP5370B's they perform best over a fairly narrow range of input signal levels.(1 to 2 volts If I recall correctly ?) Some experiments might be in order for yours. Virtually all my testing was done with 5 or 10 MHz sine waves so this may or may not be helpful in your

Re: [time-nuts] Introduction

On Wednesday, February 24, 2016 12:55:42 AM Enrico Bellotti wrote: > Hello to all, > > first of all, thank you for the great and useful work that the time-nuts > have done over the years. > > I have finally been able to gather all my counters (HP5335A, HP51131A, > HP5370A, HP5370B #1, HP5370B

Re: [time-nuts] Introduction and info about a Lucent RFTG

Email is getting really annoying. Gmail makes you do a dance to get it active again. So here is my response a second time. The system has a RB and a fine oven osc that is disciplined to the RB in case the RB fails. The xtals pretty nice and even though an oven draws quite low current when warm.

Re: [time-nuts] Introduction and info about a Lucent RFTG

Thank Rex and Paul for the replies From what I understand my RFTG has a GPSDO on oneside that has a crystal oven inside it, and a rubidium source on the other side. The rubidium source takes a signal from the GPSDO side and uses that for longer term stability. But If I am understanding you, Rex,

Re: [time-nuts] Introduction and info about a Lucent RFTG

Hi Denver When you refer to one side or the other, do you have the complete RFTG unit with the two modules? I only have the internals of the Rubidium module so would hardly claim to be an expert on these, or on much else for that matter:-), but as I understand it from the documentation

[time-nuts] Introduction and info about a Lucent RFTG

Hi all, My name is Denver I am currently a freshman in college and the time bug has struck me. I recently acquired a Lucent RFTG on ebay to have a time standard for my lab(and yes already realize its 15MHz output but may be able to change that and or just use the 10MHz test point from the

Re: [time-nuts] Introduction and info about a Lucent RFTG

Denver yes indeed they do a funny dance to take the 10 Mhz and get to 15. So you are rught unless you need 15 tapping the 10 and simply filtering and buffering is a very fine way to go. There is a power amp on the output of the 15 Mhz as I recall that will work fine at 10. That can then drive a

Re: [time-nuts] Introduction and info about a Lucent RFTG

Several years ago there were a number of these showing up pretty cheap on eBay, so I bought one. As I recall there were a couple of similar versions with some differences so take this recollection with a grain of salt. I did some tracing of the internals on the one I had and found the

[time-nuts] Introduction to quartz oscillators and atomic frequency standards for the beginner and intermediate time-nut

Moin, As usual, while looking for something completely different, i stumbled over an old report (or rather book chapter) by Stein and Vig about the basics of frequency standards (or rather frequency sources) for communication systems. It is like an early version of Vig's tutorial, but with a lot

Re: [time-nuts] Introduction of Z38XX

- Von: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] Im Auftrag von Ulrich Bangert Gesendet: Dienstag, 23. Juni 2009 11:29 An: Time nuts Betreff: [time-nuts] Introduction of Z38XX Gents, perhaps you have read that since a few days I am the owner of a Z3805 bought

Re: [time-nuts] Introduction of Z38XX

-boun...@febo.com [mailto:time-nuts-boun...@febo.com] Im Auftrag von Ulrich Bangert Gesendet: Dienstag, 23. Juni 2009 11:29 An: Time nuts Betreff: [time-nuts] Introduction of Z38XX Gents, perhaps you have read that since a few days I am the owner of a Z3805 bought on eBAy from fluke.I

Re: [time-nuts] Introduction of Z38XX

Hi Ulrich, since our FireFly and Fury GPSDO's support GPSCon as well, I tried your plot program. We use 115.200 baud by default, but when I set your program to that speed, it defaults back to 57600 for some reason. Changing our board's baud rate fixed that problem. Our status output is

[time-nuts] Introduction and a couple of requests

Hi, Name is Scott McGrath and I am a fellow time nut who in addition to playing with precise timing also plays with clocks!. My current collection of standards includes the following HP 105B HP 117A HP 5061A HP 5065A ( dead physics package unfortunately ) Austron 2100F (sold to me as a T but