Yet another option is to sample the output of a simple 1us time constant
RC low pass filter and fit an exponential to the sampled data and
calculate the threshold crossing from this.
If the aberrations are sufficiently low over the range of time intervals
measured (0.5us to 1us with a
One is due to ship to them Monday 8/16. See below. The other is a problem -
10/18.
Mouser Part #:271-620-RC
Mfr.'s Part #: 271-620-RC
Description:620ohms 1% 50PPM
Mouser Product Availability
No Stock
7,868On Order
Estimated Ship Date
7,868 8/16/2010
John K1AE
-Original
Thank you for your comments. Replies inline:
At 11:37 +1200 13-08-2010, Bruce Griffiths wrote:
1) Use a 74AHC05 for Q1 and Q2.
I was looking at the 74LVC1G07. It's a single gate, so probably less
package parasitics to worry about. Output capacitance is actually
specified (5pF typ); charge
At 21:08 -0400 12-08-2010, Bob Paddock wrote:
On Thu, Aug 12, 2010 at 6:45 PM, J.D. Bakker j...@lartmaker.nl wrote:
To start with the context: I'm planning to use a microcontroller with a
built-in dual 12-bit 2MSPS ADC.
That sounds like it is an Atmel XMega part. Do make sure you read the
Hi
Doing the ADC with the micro based parts I'm familiar with would be a
challenge. Lots of other options there though.
Bob
On Aug 13, 2010, at 1:59 AM, Bruce Griffiths bruce.griffi...@xtra.co.nz wrote:
Yet another option is to sample the output of a simple 1us time constant RC
low pass
Did anyone already purchase a bunch of these that would be willing to
part with 6 of them?
Mouser Part #:271-620-RC
Mfr.'s Part #: 271-620-RC
Description:620ohms 1% 50PPM
Mouser Product Availability
No Stock
7,868On Order
Estimated Ship Date
Thanks!
73 Brice KA8MAV
On
Hi all,
Both GPS units are still available. $300 ea or best offer.
Scott
From: Scott A Sybert
Sent: Fri 7/30/2010 3:25 PM
To: time-nuts@febo.com
Subject: FOR SALE:(2) Brandywine GPS-4 Unit - $300ea SHIPPED!
Hi Everyone,
Two more GPS-4 units have
Is anyone else having issues with satellite 26 at the moment?
Thanks
Henry
___
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.
Hi
Shortages... what shortages :)..?
The two offending resistors have been bumped to 1% standard values from 5%
standard. Functionally there should be no difference at all.
Sorry for the delay in getting it up dated.
Bob
On Aug 13, 2010, at 1:47 AM, Heathkid wrote:
Hello everyone.
Have a look at this clock.
Cheers, Neville Michie
http://www.wired.com/magazine/2010/07/pl_backstory_timemachine/
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow
On 08/13/2010 09:41 PM, Henry Hallam wrote:
Is anyone else having issues with satellite 26 at the moment?
There is scheduled activity for it:
GPS OPERATIONAL ADVISORY225
SUBJ: GPS STATUS 13 AUG 2010
1. SATELLITES, PLANES, AND CLOCKS (CS=CESIUM RB=RUBIDIUM):
A. BLOCK I : NONE
B.
That's my kind of clock, but not my kind of money.
Anybody have one that's used, repairable? :)
Bill Hawkins
-Original Message-
From: Neville Michie
Sent: Friday, August 13, 2010 4:44 PM
Have a look at this clock.
Cheers, Neville Michie
At 08:30 +1200 14-08-2010, Bruce Griffiths wrote:
J.D. Bakker wrote:
4) If the ADC(s) have a sufficiently wide full power bandwidth
then one could just sample a pair of quadrature phased 250kHz
sinewaves.
As someone who's used to thinking in I/Q I must say I've always
liked the elegance of
Bob,
Thanks for the update! How critical are the values of the components? If
I'm going to build this (actually six of them)... I'd prefer to do it right
(and best) the first time. Going from a 620ohm 1% to a 619ohm is probably
negligible. But if it's design is *supposed* to require a
14 matches
Mail list logo
