Re: [time-nuts] Surge Arresters

2012-11-26 Thread Volker Esper
Cable question: I assume that won't be the problem. I use my 26dB Trimble timing antenna with RG-213 because of the low loss (and the low cost). Before that I had 15 m (45 feet) of RG-58 combined with a car roof magnetic patch antenna in use without any problem. Any 50 Ohm cable can be used,

Re: [time-nuts] FE-5680A no 10MHz RF output?

2012-11-25 Thread Volker Esper
Am 25.11.2012 18:29, schrieb James Peroulas: Message: 3 Date: Sat, 24 Nov 2012 11:10:02 -0600 From: Ed Palmered_pal...@sasktel.net To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] FE-5680A no 10MHz RF output?

Re: [time-nuts] Nifty MINI TIC for DMTD work

2012-11-19 Thread Volker Esper
I'd like to be on the list. Definitely. Where do I have to pay? Volker Am 19.11.2012 20:04, schrieb cdel...@juno.com: MINI-TIC for DMTD work Hi Everyone! I've been testing a Miniature 2 channel TIC that Bert Kehren and Juerg Koegel and Richard Mc Corkle have designed. It has 9

Re: [time-nuts] Z3805 two frequency maxima

2012-11-18 Thread Volker Esper
@Azelio: Yes, (like Bob told) it's the phase lock, that locks the two maxima. Actually the counter is able to look between the 60ps spaced towers, have a look at the pictures in the first mail of this thread. However, there is a smallest time value the counter can determine, but it is much

Re: [time-nuts] Z3805 two frequency maxima

2012-11-18 Thread Volker Esper
...A PLL multiplier will (likely) also ignore the sub-harmonic, the jitter will not show up if you use the 10 MHz as a counter timebase in a HP counter... Yes, I wondered what the histogram would show when using the 2-maxima-Z3805 signal as a reference for the SR620 counter. Would the PLL

Re: [time-nuts] Z3805 two frequency maxima

2012-11-18 Thread Volker Esper
As far as I can see the PLL loop filter (SR620) has a corner frequency of about 33Hz. My HP counter 5385A has simply a switch to toggle between the external source and the internal osc. Am 18.11.2012 22:45, schrieb Bob Camp: Hi Most modern counters have an internal oscillator that they

Re: [time-nuts] Z3805 two frequency maxima

2012-11-17 Thread Volker Esper
So let's have a look into the machine... and what do we see? There's a nice little Symmetrcom oven, with the sign reading 5.000 MHz - bingo! May be there's a time saving way to determine the energie of the sub harmonic: using my spectrum analyzer. It tells me, that there's a 5 MHz

Re: [time-nuts] Z3805 two frequency maxima

2012-11-17 Thread Volker Esper
I'm impressed - but what law is behind this? Am 17.11.2012 21:26, schrieb Bob Camp: Hi 60 db isn't to bad a number. More or less: 100 ns - 100 ps is 1000:1. 20 log of that is 60 db. 100 ps to 60 ps is about 4.4 db. That would sum up to -64.4 dbc. The main gotcha is that you *might* also

Re: [time-nuts] SR620 software and adjustment

2012-11-15 Thread Volker Esper
I enjoy beeing here, thank you all for your responses. 73 Volker ___ 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] Windows software for the SR620 counter

2012-11-13 Thread Volker Esper
...When you switch on the SR620 the fan should be slowly increasing its speed over several minutes if the circuit is operating properly. That's what my fan does (over abot 15min), but it doesn't stop increasing until it's reached maximum speed. If you bought your SR620 second hand of

[time-nuts] SR620 software and adjustment

2012-11-12 Thread Volker Esper
Sorry, I don't want to annoy you, but I can't find the alignment/adjustment procedure for the SR620 - once, I had it... :-( I don's mean that in the manual, there must be another one Bob talked about. By the way: is there any suitable vindous software out there, for talking (and listening)

Re: [time-nuts] Z3805 hold-Over

2012-11-11 Thread Volker Esper
Yes, I guess, signal strength is essential. My holdover uncertainty is (after 1 weeks) about 1 to 2us. Volker DF9PL Am 11.11.2012 20:04, schrieb jmfranke: Your 21 ns for 1PPS and T1 does not look too bad, but the satellite received signal strengths are too low. You should have at least four

Re: [time-nuts] Z3805 hold-Over

2012-11-11 Thread Volker Esper
You can easily check the 5V by measuring at the open antenna plug. When plugging the antenna, total current consumption should increase by about 10mA or so. Am 11.11.2012 20:24, schrieb Doug Parker: Hi John, Thanks for the observation, with the same antenna plugged into my Z3801, I get

Re: [time-nuts] A counter for phase measures

2012-11-03 Thread Volker Esper
shot capability of the SR, but - as being a newbie - is there anything I overlook at this moment? Thanks Volker - DF9PL Am 02.11.2012 16:32, schrieb Volker Esper: Dear fellows, I'm searching for a counter that allows me to make automated measure series. Of course, Allan Deviation

Re: [time-nuts] A counter for phase measures

2012-11-03 Thread Volker Esper
. Thanks; Thomas Knox Date: Sat, 3 Nov 2012 16:28:42 +0100 From: mag...@rubidium.dyndns.org To: time-nuts@febo.com Subject: Re: [time-nuts] A counter for phase measures On 11/03/2012 03:10 PM, Volker Esper wrote: Thank you for the interesting information. Now, the time has come

Re: [time-nuts] A counter for phase measures

2012-11-03 Thread Volker Esper
that massive single shot capability of the SR, but - as being a newbie - is there anything I overlook at this moment? Thanks Volker - DF9PL Am 02.11.2012 16:32, schrieb Volker Esper: Dear fellows, I'm searching for a counter that allows me to make automated measure series. Of course

Re: [time-nuts] A counter for phase measures

2012-11-03 Thread Volker Esper
Am 02.11.2012 16:32, schrieb Volker Esper: Dear fellows, I'm searching for a counter that allows me to make automated measure series. Of course, Allan Deviation is an important thing to determine when experimenting with or developing GPSDOs (what I intend). So it seemed to be a nice

Re: [time-nuts] A counter for phase measures

2012-11-03 Thread Volker Esper
] A counter for phase measures On 11/03/2012 03:10 PM, Volker Esper wrote: Thank you for the interesting information. Now, the time has come to look for an adequate counter - anyone who has experience with the HP 53132A and the SR620? If they both where at - say 1000 USD - what would you

[time-nuts] How to start a new topic

2012-11-02 Thread Volker Esper
Fellow time-nuts, I am new in this mailing list and a little bit unfamiliar with it, so I hope I'm not doing something stupid. How do I start a new topic? Simply send a mail with a new subject? Thanks a lot Volker smime.p7s Description: S/MIME Cryptographic Signature

[time-nuts] A counter for phase measures

2012-11-02 Thread Volker Esper
Dear fellows, I'm searching for a counter that allows me to make automated measure series. Of course, Allan Deviation is an important thing to determine when experimenting with or developing GPSDOs (what I intend). So it seemed to be a nice thing to measure phase deviation with a counter (HP

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