Le 25/05/2011 04:00, Tom Holmes a écrit :
snip
Steven Cherry is exaggerating when he says most systems go down for
planned maintenance instead of trying to deal with leap seconds in real
time.
As someone who has been supporting major industrial, banking, airline
systems for the last 30
Why is this extra repetition a problem when top-posting, but not a problem when bottom
posting
On 2011-05-25 12:23, Perry Sandeen wrote:
Exalted Listers,
Because of the high amount of useable technical information to me I copy each
month’s postings to a word file. I do this for two
W7ITM sent me a private email about a replacement for the SO-1. I mentioned
there was an eBay seller who sold a replacement which allowed one to use an
external reference oscillator, but I was unable to find the auction.
I've tried to email him, but my emails are bouncing.
I since found the
I'm still trying to find a solution to replacing a standard crystal in a Kenwood
TS-940S transceiver with something more accurate. The transceiver uses a 20 MHz
crystal oscillator, though a 20 MHz TCXO was available as an option, though few
rigs appear to be fitted with it.
If one was to make
In message 4ddca21f.2060...@sfr.fr, cook michael writes:
As someone who has been supporting major industrial, banking, airline
systems for the last 30 years, I remember NO down time, or outage due to
leap second insertion.
Only the last five years really matter, because tightly
A trifilar transformer with two diodes is the simplest. You could also use a
mini-circuits doubler, same thing more expensive.
Alternatively take an SBL-1 and feed 2 inputs with the same 10Mhz and get a
doubled out. You will need to filter it a bit.
At 25-05-2011, you wrote:
If one was to
Hi Dave,
Use a diode doubler, follwed by a 20MHz filter and a MMIC /attenuator
combination to allow you to set the level. If you need more detail, e-mail me
directly and I'll provide.
73,
Dave
From: Dr. David Kirkby david.kir...@onetel.net
To: Discussion
On May 25, 2011, at 3:27 AM, Ken , VK7KRJ wrote:
Why is this extra repetition a problem when top-posting, but not a problem
when bottom posting
The protocol behind bottom posting is to edit the prior text, so that you are
only incorporating, and responding to, the appropriate text.
Top
Hi
Does anybody have one of these running? The disk in mine has been wiped and
the required drivers don't seem to be out there anywhere. It's an early to
mid 1990's VXI based TIA. When it was new it ran Win 98. Single shot noise
floor is rated as 100 ps rms. I seem to recall there's a way to
You guys should get out of the dark ages and use a modern mail client. Then
it won't matter!
I won't name names, but the one I use is popular, has a web front end, keeps
all of my mail around in a searchable format (no need to waste your time
generating a word doc), squashes out quoted fragments
If the radio's clock can be trimmed with a voltage,
why not divide the radio's 20 MHz clock by two and
feed the result into the GPSDO in place of the GPSDO's
10 MHz oscillator.
--
Chuck Forsberg WA7KGX N2469R c...@omen.com www.omen.com
Developer of Industrial ZMODEM(Tm) for Embedded
About Steven Cherry, here is a famous example of system outage due to leap
seconds :
http://www.dba-oracle.com/oracle_news/news_leap_second_causing_new_years_rac_node_crashes.htm
Also Google Android is plagued with an issue visible on phones like the
Motorola Droid or HTC EVO 4G, where the time
Hi Christopher,
Thanks for those interesting links.
Note PHK's original ACM article is:
http://queue.acm.org/detail.cfm?id=1967009
The recent IEEE mention is:
http://spectrum.ieee.org/podcast/at-work/innovation/does-anybody-really-know-what-time-it-is
With audio:
Thanks for the tip Justin- I also found one for Thunderbird called QuoteCollapse- now I
get to read just the new bits.
On 2011-05-26 03:52, Justin Pinnix wrote:
You guys should get out of the dark ages and use a modern mail client. Then
it won't matter!
I won't name names, but the one I use
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