Re: [time-nuts] Odd FTS 4060 Behavior

> I do not know why the manufacturers insist on gold plating leads that are > designed to be soldered. Silver plating seems like a better solution. Gold doesn't tarnish so you can get a good solder joint after it's been sitting around for a while. There are enough hassles with lead that some/

Re: [time-nuts] Odd FTS 4060 Behavior

This is known as gold embrittlement. The gold has to be removed before a good solder connection is made. To remove the gold, tin the gold plated area. Desolder the tinning. Retin and remove the solder three times. This should remove the gold which forms an amalgam with the solder. After the gold h

Re: [time-nuts] 5061A Problem Child

Corby, It has been a long and frustrating day. I swapped the A3, A8, A7, A14, and A1 assemblies with a functioning unit and the assemblies from the 'problem child' worked in the 'good' unit and the assemblies from the 'good' unit failed to work in the 'problem child'. I 'un-swapped the units and

Re: [time-nuts] Advantages & Disadvantages of the TPLL Method

On 14 June 2010 10:46, Magnus Danielson wrote: > Still puts it in the mid-tau range as a method. The useful range and > precision of a particular implementation of the method will vary. By putting a GPSDO in the usual place of the DUT and putting the 10811 in place of the reference oscillator it

Re: [time-nuts] My stubborn Z3801A

The minimum voltage is +/-3 volts, I'm getting about +/-6 right now. How does one change the serial port speed, I don't see anything in SatStat. Bob - Original Message - From: "John Miles" To: "Discussion of precise time and frequency measurement" Sent: Sunday, June 13, 2010 8:21 PM

Re: [time-nuts] Advantages & Disadvantages of the TPLL Method

Warren, Penny dropped! On 14 June 2010 05:29, WarrenS wrote: > Magnus Posted > >> "The TPLL is a mid-tau stability test, since it's sweet-spot is in the >> 0,1 - 1000 s range. Short-term is better handled in LPLL phase-noise >> measurements." > > Mostly agree, it is a mid-tau device, but also co

Re: [time-nuts] My stubborn Z3801A

The headers are in, that's why I though he completed the modification. Bob AC2AZ - Original Message - From: "Richard W. Solomon" To: "Discussion of precise time and frequency measurement" Sent: Sunday, June 13, 2010 8:43 PM Subject: Re: [time-nuts] My stubborn Z3801A If you remove

Re: [time-nuts] Thunderbolt test results

One time did 0.8 , 1.0 and 1.2 at 100 seconds and did not see much change. Its in the works one day to play with it some more, when I have more TIME Brian Peter Vince wrote: Have you played with the damping factor Brian? Peter ___ time-nut

Re: [time-nuts] My stubborn Z3801A

Just got mine running again that was stashed away for some time. I've had communication problems, too, when I was trying different power supplies for the 422/232 converter. Rebooting the PC finally fixed that... I'm using SatStat with Com port settings as follows: Baud Rate 19200 Data Bits 7 St

Re: [time-nuts] My stubborn Z3801A

If you remove those "zero ohm" resistors, you need other jumpers to make it work as an RS-232. When I did mine, I stuck in two strips of "headers" and used those HD jumpers to select RS-232 or RS-422. Check out this site: http://www.ad6a.com/Z3801A.html 73, Dick, W1KSZ -Original Message-

Re: [time-nuts] Odd FTS 4060 Behavior

Bert, it has a 1000B with one ea. 5 and 10 MHz outputs. Internally, as by the X-tal, it is a 5 MHz unit. It's now running fine since 2 1/2 hours. Compared with my 5065A the 4060 is just some 2E-12 off or, more likely, the Rb is. It went a little yada when I flipped it over to mount the bottom c

Re: [time-nuts] My stubborn Z3801A

> Still to go: The RS-232 signals look fine going into the cable, > +/-5V, any > ideas why the computer won't read it? Am I missing something? I > tried two > different ports in case I screwed one up one of the ports, but no luck. Haven't been following the thread so someone may have suggested

[time-nuts] My stubborn Z3801A

To All, An update to my Z3801A saga. Summary: As you know, I purchased this Z3801A at the Dayton Hamfest. The person who sold it to me said it was modified for RS-232. I powered the unit up and the only thing it ever did was go into the holdover mode. Tried hooking RS-232, but got no respon

Re: [time-nuts] Odd FTS 4060 Behavior

Adrian, maybe I missed something which oscillator does your unit have? Bert -Original Message- From: Adrian To: Discussion of precise time and frequency measurement Sent: Sun, Jun 13, 2010 6:08 pm Subject: Re: [time-nuts] Odd FTS 4060 Behavior John, yep! The OCXO out of the

Re: [time-nuts] Advantages & Disadvantages of the TPLL Method

On 06/13/2010 07:29 PM, WarrenS wrote: Magnus Posted "The TPLL is a mid-tau stability test, since it's sweet-spot is in the 0,1 - 1000 s range. Short-term is better handled in LPLL phase-noise measurements." Mostly agree, it is a mid-tau device, but also consider: The simple TPLL can be used

Re: [time-nuts] Odd FTS 4060 Behavior

Interesting. Solder and gold don't like each other very much, and even the more respected manufacturers don't always seem to appreciate that, when they rely on a soldered connection to provide some mechanical stability. This isn't the first time I've heard of FTS oscillators behaving oddly, so it

[time-nuts] Z3801A in holdover

My Z3801A has been going into holdover randomly for at least a month. Sometimes it doesn't happen for many days and other times two days in a row. The time in holdover is anywhere from under 1/2 hour to several hours. Last night, it went into holdover again and has been that way for over 20 hours.

Re: [time-nuts] Odd FTS 4060 Behavior

John, yep! The OCXO out of the 4060 and connected to a bench power supply with no tuning voltages applied had to be trimmed to get on 10 MHz. After a while it started temporarily jumping to -1.4E-07, which could be reversed or provoked by knocking it on the head. I decided to disassemble it

Re: [time-nuts] TPLL method

Warren, someone asked if you could draw up a schematic that is exactly what you're using, and post it here for us. If you did that, I missed it (I don't always get the time-nuts posts -- Hughesnet thinks a lot of them are spam). Or is this a work in progress for you, that we can expect soon? I'm

Re: [time-nuts] Advantages & Disadvantages of the TPLL Method

I went quickly thru Tom's reference list and was unable to fine anything that had much if anything to do directly with the NIST, the NBS, or the slightly modified ws TPLL method. All of those papers seem to be about how to measure Phase noise, NOT frequency stability, and from what I was able

Re: [time-nuts] Advantages & Disadvantages of the TPLL Method

Magnus Posted "The TPLL is a mid-tau stability test, since it's sweet-spot is in the 0,1 - 1000 s range. Short-term is better handled in LPLL phase-noise measurements." Mostly agree, it is a mid-tau device, but also consider: The simple TPLL can be used to find the 1ms to 10 ms ADEV as good a

Re: [time-nuts] Advantages & Disadvantages of the TPLLMethod

I was using Thunderbird for a while, and the main advantages, from a practical standpoint, were the full access to the message headers, better control on formatting and better spam filtering, but since I have been using a Blackberry, I have appreciated the excellent integration of Outlook and t

Re: [time-nuts] FW: FW: Advantages & Disadvantages of the TPLL Method

I thought the fix was to use Thunderbird? -Chuck Harris Didier Juges wrote: That now works here. For those using Outlook, here is the fix: http://support.microsoft.com/default.aspx?scid=kb;en-us;823921&Product=out2003 Didier ___ time-nuts mailin

[time-nuts] FW: FW: Advantages & Disadvantages of the TPLL Method

That now works here. For those using Outlook, here is the fix: http://support.microsoft.com/default.aspx?scid=kb;en-us;823921&Product=out2003 Didier -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Didier Juges Sent: Sunday, June 13,

[time-nuts] FW: Advantages & Disadvantages of the TPLL Method

Testing, testing, testing... I made a registry change which should prevent Outlook from breaking the line on transmit... Didier -Original Message- From: Didier Juges [mailto:did...@cox.net] Sent: Sunday, June 13, 2010 10:08 AM To: 'Discussion of precise time and frequency measurement'

Re: [time-nuts] Advantages & Disadvantages of the TPLL Method

Steve, This seems to work with your email client sending and Outlook here receiving (I received that link unbroken), but the same link I just sent was broken, so it seems Outlook is doing that on the way out, but not on the way in... I should have known, Microsoft... Bottom line, no sure way to

[time-nuts] FW: Advantages & Disadvantages of the TPLL Method

This is a test... < http://www.ko4bb.com/dokuwiki/doku.php?id=precision_timing:phase_frequency_m easurement_methods > Didier ___ time-nuts mailing list

Re: [time-nuts] Advantages & Disadvantages of the TPLL Method

On 13/06/2010, Didier Juges wrote: > I saw that. There is nothing I can do about it other than by using a url > shortener You can hint to most email clients that you'd like lines unbroken, using This may work...

Re: [time-nuts] Odd FTS 4060 Behavior

Adrian I have also a FTS 1200 that is 2 Hz off at 5 MHz and can not be tuned to 5 MHz, have not dug into it yet. But first I would check the tuning range of your OCXO depending as to which one it is the tuning voltage should go past 5 Volt. If you see peaks on the current with the Osc. abov

Re: [time-nuts] Advantages & Disadvantages of the TPLL Method

>> Just to let you know that your link got busted by a line-wrap >> somewhere so it is not clickable and has to be cut and pasted >> into place. > I saw that. There is nothing I can do about it other than by using a url > shortener which I am reluctant to do because of the obfuscation and > pote

Re: [time-nuts] Advantages & Disadvantages of the TPLL Method

I saw that. There is nothing I can do about it other than by using a url shortener which I am reluctant to do because of the obfuscation and potential for abuse. I assume that by now everyone knows how to deal with these problems, and if someone does not, now is a good time to brush up... Didier

Re: [time-nuts] Advantages & Disadvantages of the TPLL Method

Didier On 13 June 2010 21:51, Didier Juges wrote: > Tom, > > I took the liberty of converting your post into an entry in my Time-Nuts > Wiki: > http://www.ko4bb.com/dokuwiki/doku.php?id=precision_timing:phase_frequency_m > easurement_methods Just to let you know that your link got busted by a li

Re: [time-nuts] Advantages & Disadvantages of the TPLL Method

Tom, I took the liberty of converting your post into an entry in my Time-Nuts Wiki: http://www.ko4bb.com/dokuwiki/doku.php?id=precision_timing:phase_frequency_m easurement_methods Please note anyone can edit this Wiki or create new pages. Didier > -Original Message- > From: time-nuts-b

Re: [time-nuts] Advantages & Disadvantages of the TPLL Method

John, On 06/13/2010 10:00 AM, John Miles wrote: Correlation-based phase noise measurements http://www.femto-st.fr/~rubiola/pdf-others/correl-report.pdf -- for John Miles Practical Problems Involving Phase Noise Measurements http://tycho.usno.navy.mil/ptti/ptti2001/paper42.pdf -- also for Jo

Re: [time-nuts] Advantages & Disadvantages of the TPLL Method

> > Correlation-based phase noise measurements > http://www.femto-st.fr/~rubiola/pdf-others/correl-report.pdf > -- for John Miles > > Practical Problems Involving Phase Noise Measurements > http://tycho.usno.navy.mil/ptti/ptti2001/paper42.pdf > -- also for John. I've got these in my collection,

Re: [time-nuts] Advantages & Disadvantages of the TPLL Method

Warren, On 06/13/2010 05:45 AM, WarrenS wrote: Thanks for the positive contrbution, A good example of one of the TPLL's obvious disadvantages. The simple cheap analog version of the TPLL is limited by it's need to have a dedicated Ref OSC. One way I have got around that problem, which would no

Re: [time-nuts] Advantages & Disadvantages of the TPLL Method

All of these are in my collection of papers that I have read. Bruce Tom Van Baak wrote: Here are a couple of really good articles that describe many methods of phase/frequency measurement, including TPLL. You'll see some nice "advantage/disadvantage" lists in several of these documents, which i