Re: [time-nuts] Test Equipment

Thanks to everyone who answered in this thread.I am keenly interested in everything everyone had to say! One of the things that seems like a no-brainer, would be to scrape together the $700 and get an Agilent E8285A CDMA test set. It seems like I can't go wrong with that! My only concern with

[time-nuts] Test Equipment

suggestions on what I should acquire and/or suggestions for economical equipment that I should make that is a must have? I am a good DIYer when it comes to building equipment, so often I attempt to build that which I cannot afford. I appreciate everyone's' opinions in advance. Thank you. Sincerely, John

Re: [time-nuts] Test Equipment

: John Foege john.fo...@gmail.com Date: Thu, 21 Jan 2010 13:35:22 To: Discussion of precise time and frequency measurementtime-nuts@febo.com Subject: [time-nuts] Test Equipment I realize that this e-mail is somewhat off topic, however, I also believe that I will get some of the best answers from

Re: [time-nuts] 4 KV Power Supply Recommendations

are using. Another very handy trick to make the MOT much less lethal for use, would be to wire a standard incandescent bulb in series with the primary. this limits the seconday side current quite nicely. John Foege Sent via BlackBerry by ATT -Original Message- From: Bob Camp li...@cq.nu Date

Re: [time-nuts] 4 KV Power Supply Recommendations

I'm not saying its safe. I'm just saying its a lot safer than MOT that isn't ballasted at all. You can ballast one MOT with another mot. You can add in all kinds of things to keep the current limited. But I wasn't saying that its safe to play with. When is 2kV ever safe to play with? I never

[time-nuts] GPSDO Design

. Translating this to something practical is basically the assistance I'm looking for here. I would appreciate anyone being able to teach me a bit more about this. Thank you in all in advance. Sincerely, John Foege ___ time-nuts mailing list -- time-nuts

Re: [time-nuts] GPSDO Design

. As a second step, I was thinking about implementing the loop filter digitally to achieve finer control over the operation of the GPSDO as well realizable longer time constants. Thanks. John Foege On Thu, Jan 14, 2010 at 8:37 AM, Didier Juges did...@cox.net wrote: -Original Message- From: time

[time-nuts] Characterization of Oscillator w/ HP5345a

something quite similar to: http://www.jrmiller.demon.co.uk/projects/ministd/frqstd0.htm I have 2 Jupiter GPS units in my possesion already and the next step is to acquire a good OCXO somewhere (eBay from China most likely). I thank everyone in advance for any suggestions. Sincerely, John Foege

Re: [time-nuts] I think I've become a Volt nut too.

But if you had 1000 references, or maybe 100,000, the law of large numbers would be on your side =) Sent via BlackBerry by ATT -Original Message- From: Mike Naruta AA8K a...@comcast.net Date: Mon, 11 Jan 2010 22:24:30 To: Discussion of precise time and frequency

Re: [time-nuts] Sparkfun

, that they simply underestimated what they needed by a factor of 10! That or their webservers aren't configured right =) John Foege Sent via BlackBerry by ATT -Original Message- From: Steve Krull steve-kr...@cox.net Date: Thu, 7 Jan 2010 09:52:52 To: Discussion of precise time

Re: [time-nuts] Sparkfun

I've worked in IT for a long time, and I gurantee you, the guys in Sparkfun's IT staff are all freaking out right now!! Haha, gotta love that good ol' disaster stress in IT! John Foege Sent via BlackBerry by ATT -Original Message- From: Magnus Danielson mag...@rubidium.dyndns.org Date

Re: [time-nuts] Sparkfun

And that's how I believe *many* people are feeling. So, I think this is actually a real big disaster for them. Sadly! --Original Message-- From: Dan Rae Sender: time-nuts-boun...@febo.com To: Discussion of precise time and frequency measurement ReplyTo: dan...@verizon.net ReplyTo:

Re: [time-nuts] Beginner's time reference

Time does not just exist. That is correct. It is a human construct, like all other things. We define it, as all other things, and then make useful empirical comparative observations with it. It sure is a handy, and sometimes addicting, construct however! John Foege KB1FSX Sent via BlackBerry

Re: [time-nuts] HP 105B Modification

Ed, I have seen a hex schmitt trigger inverter used for this. The output of the OXCO goes into all 6 schmitt rigger inverter inputs and then on the output side you have the output leg of each inverter connected through 300 ohm resistance. Thusly you get 6 hex schmitt trigger inverters wired in