Re: [time-nuts] SMT Probing Stuff

2012-10-01 Thread Attila Kinali
On Sat, 29 Sep 2012 18:16:57 -0700 (PDT) "J. Forster" wrote: > I recently bought some clean IBM Thinkpads cheap with unknown Boot > PassWords. There is a hack to access the existing PWs and rewrite them, > but it requires connecting to an 8 pin SMT IC. > > I know several vendors make "Dip Clip"

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Thomas Valerio
Actually, it was in Nuts & Volts as well, and I was thinking about posting a similar query to the list, but my incentive and my interest pretty much went negative when my cursory investigation revealed that price information appeared to be non-existent. IMHO for pretty much *everything* that is fo

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Don Latham
It's been like that since the first op-amps and RTL. The new devices are all made with Nonobtanium and Administratium. Thomas Valerio > Actually, it was in Nuts & Volts as well, and I was thinking about > posting > a similar query to the list, but my incentive and my interest pretty > much > wen

Re: [time-nuts] How are non-Trimble oscillators disciplined?

2012-10-01 Thread Hal Murray
hp_cisco...@yahoo.com said: > One thing I am wondering about is disciplining - how much of this is HW and > how much is SW? > How are non-Trimble oscillators disciplined? It it common practice to > provide a GPS antenna input? I think you are missing the big picture. There are two different ty

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Hal Murray
t...@westwood-tech.com said: > information appeared to be non-existent. IMHO for pretty much *everything* > that is for sale, if you have to ask for the price it is a scam. Yes, when it says "call for pricing", I usually drop interest. But I wouldn't say "scam". How about "not targeted at my

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Javier Herrero
El 01/10/2012 11:22, Hal Murray escribió: t...@westwood-tech.com said: information appeared to be non-existent. IMHO for pretty much *everything* that is for sale, if you have to ask for the price it is a scam. Yes, when it says "call for pricing", I usually drop interest. But I wouldn't say

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Bill Dailey
On Oct 1, 2012, at 4:45 AM, Javier Herrero wrote: > El 01/10/2012 11:22, Hal Murray escribió: >> t...@westwood-tech.com said: >>> information appeared to be non-existent. IMHO for pretty much *everything* >>> that is for sale, if you have to ask for the price it is a scam. >> Yes, when it says

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Jim Lux
On 9/30/12 10:51 PM, Thomas Valerio wrote: Actually, it was in Nuts & Volts as well, and I was thinking about posting a similar query to the list, but my incentive and my interest pretty much went negative when my cursory investigation revealed that price information appeared to be non-existent.

Re: [time-nuts] SMT Probing Stuff

2012-10-01 Thread J. Forster
Aging eyesight, for one. For another, I don't like hacking up hardware. And there is not a lot of access, except from directly above, and lots of easily melted plastic nereby. -John == > On Sat, 29 Sep 2012 18:16:57 -0700 (PDT) > "J. Forster" wrote: > >> I recently bought some clea

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Don Latham
Hello Hal and all: Here's the answer I got: "Don, A single unit would set you back $465.00 and delivery would be in the region of 6 weeks. Best Regards Steven Wilson (史帝文) Technical Director RFX Limited Unit 11A, Oakbank Park, Livingston, West Lothian, Scotland,EH53 0TH, U.K. Tel - +44 (0)1506

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Bob Camp
Hi That's not a bad price for one piece. Bob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Don Latham Sent: Monday, October 01, 2012 12:27 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] RFX GPSDO

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Bill Dailey
That isn't bad Sent from my iPhone and Hunter Lambert is my hero! On Oct 1, 2012, at 11:27 AM, "Don Latham" wrote: > Hello Hal and all: > Here's the answer I got: > > "Don, > > A single unit would set you back $465.00 and delivery would be in the > region of 6 > weeks. > > Best Regards > Ste

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Chris Albertson
On Mon, Oct 1, 2012 at 9:27 AM, Don Latham wrote: > A single unit would set you back $465.00 and delivery would be in the > region of 6 > weeks. I Wonder what price the T-Bolts sold for new in single quantities. Maybe more than $465? Chris Albertson Redondo Beach, California

Re: [time-nuts] Messy benches

2012-10-01 Thread james machado
On Sun, Sep 30, 2012 at 12:10 PM, John Pease wrote: > Don > > Latham's law of horizontal surfaces states "Any bare horizontal surface > immediately becomes covered with junk." > > > I would offer a more general law: > > A N dimensional surface tends to attrack N+1 dimensional objects to the > sat

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Bill Dailey
Well over 1000. Can still buy them Sent from my iPhone and Hunter Lambert is my hero! On Oct 1, 2012, at 11:53 AM, Chris Albertson wrote: > On Mon, Oct 1, 2012 at 9:27 AM, Don Latham wrote: > >> A single unit would set you back $465.00 and delivery would be in the >> region of 6 >> weeks. >

[time-nuts] Tbolt Orignal Cost

2012-10-01 Thread johncroos
Hello all - I Wonder what price the T-Bolts sold for new in single quantities. Maybe more than $465? I ran across this some time ago - Perhaps someone has a better number but the later ones seem to go for $ 1500 for the kit with the antenna from a distributor. Note that this is a later mode

Re: [time-nuts] Tbolt Orignal Cost

2012-10-01 Thread Bill Dailey
BTW this device is not nearly as good as a thunderbolt. Closer to that gpstcxo development kit that Jackson Labs is offering (HPSDR guys are using it I think). The short term and long term stability quite frankly doesn't appear to be in the same league as the Thunderbolt although someone would ne

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Javier Herrero
I asked for a quotation to one spanish distributor about a year ago. It was quoted at 977 EUR for a single unit, for the newer Thunderbolt E. $465 seems not bad for that unit. Regards, Javier El 01/10/2012 18:53, Chris Albertson escribió: On Mon, Oct 1, 2012 at 9:27 AM, Don Latham wrote:

Re: [time-nuts] Tbolt Orignal Cost

2012-10-01 Thread paul swed
I do not but could easily imagine in the new range they are with power supply antenna warranty etc. I know my $139 china purchase has been one of the best deals in a long time. That was about a year ago. So I do not think thats a crazy number for brand new. Other will let me know how wrong I am. Re

[time-nuts] Best counter setting for ADEV?

2012-10-01 Thread Adrian
Hi All, thanks to John's superb free Timelab software, I tried ADEV for the first time, after having been mostly interested in phase noise yet. I learned that ADEV sensitivity is limited by the 500 ps resolution of the counter that leads to a noise floor of 5E-10 at 1 sec, going down to 5E-1

Re: [time-nuts] Best counter setting for ADEV?

2012-10-01 Thread Magnus Danielson
On 10/01/2012 10:31 PM, Adrian wrote: Hi All, thanks to John's superb free Timelab software, I tried ADEV for the first time, after having been mostly interested in phase noise yet. I learned that ADEV sensitivity is limited by the 500 ps resolution of the counter that leads to a noise floor of

Re: [time-nuts] Best counter setting for ADEV?

2012-10-01 Thread Tom Van Baak
> I was wondering why the resolution in TI mode is so much limited, since > I never had any problems measuring 5 or 10 MHz frequencies with up to 12 > figures on that counter. Limited? The question is not so much counting the figures but asking if the how much the figures count. > As a quic 'n

Re: [time-nuts] Best counter setting for ADEV?

2012-10-01 Thread Ed Palmer
As you've found, time interval counters by themselves can't measure Allan Deviation to the levels required for today's precision oscillators. Here are three google searches - either a general search or search the Time Nuts archive at www.febo.com. They will get you started in the topic of All

Re: [time-nuts] Best counter setting for ADEV?

2012-10-01 Thread Magnus Danielson
On 10/01/2012 11:13 PM, Tom Van Baak wrote: I was wondering why the resolution in TI mode is so much limited, since I never had any problems measuring 5 or 10 MHz frequencies with up to 12 figures on that counter. Limited? The question is not so much counting the figures but asking if the how m

Re: [time-nuts] Best counter setting for ADEV?

2012-10-01 Thread Tom Van Baak
> I was wondering why the resolution in TI mode is so much limited, since > I never had any problems measuring 5 or 10 MHz frequencies with up to 12 > figures on that counter. If you look closely you'll see that the 53132A resolution drops by a factor of ten (to 11 digits per second) when then

Re: [time-nuts] RFX GPSDO - Anybody played with one of these?

2012-10-01 Thread Raj
>Just saw this mentioned in Circuit Cellar, just wonding if it really >exists, how much they are asking, and if anyone has played with one >yet? > >http://www.rfx.co.uk/pdfs/GPS_OCXO_1300_10_module.pdf It is small enough to incorporate in the external antenna ! Raj ___

[time-nuts] They're baaaack!

2012-10-01 Thread Chuck Forsberg WA7KGX N2469R
Are LightSquared still trying to get some value from their contributions? http://arstechnica.com/tech-policy/2012/10/lightsquared-still-wont-give-up-on-spectrum-near-gps-band/ http://www.aero-news.net/index.cfm?do=main.textpost&id=a2a98f9f-beae-4642-9ba0-a1874805f024 -- Chuck Forsberg WA7KGX N2