In message 4c72f32a.9000...@elfpen.com, Chris Howard writes:
http://news.stanford.edu/news/2010/august/sun-082310.html
Any implication for CS clocks?
No. Cs133 is not radioactive.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD
On 08/24/2010 12:16 AM, Chris Howard wrote:
http://news.stanford.edu/news/2010/august/sun-082310.html
It's a mystery that presented itself unexpectedly: The radioactive
decay of some elements sitting quietly in laboratories on Earth seemed
to be influenced by activities inside the sun, 93
Poul,
That is absolutely not true ! Those CS-133's work very hard radiating from F1
to
F2 and back again at 9+ GHz !
BillWB6BNQ
Poul-Henning Kamp wrote:
In message 4c72f32a.9000...@elfpen.com, Chris Howard writes:
http://news.stanford.edu/news/2010/august/sun-082310.html
Any
On 08/24/2010 08:56 AM, WB6BNQ wrote:
Poul,
That is absolutely not true ! Those CS-133's work very hard radiating from F1
to
F2 and back again at 9+ GHz !
BillWB6BNQ
Very small hams?
PHK naturally meant radioactive decay...
Cheers,
Magnus
Poul-Henning Kamp wrote:
In
Bob Camp wrote:
Hi
If you start with a mixer that runs 500 mV / radian (an RPD-1 at the typical 8
mV / degree + 10%) then -180 below that would be 0.5 nV. Since noise it
coherent close in, the DSB to SSB process nets you 1 nV out when you have -180
dbc noise.
With a capacitive IF port
First of all, please excuse the English, I suffer from dyslexia. It was
great to see the article by Dan Stober. After reading the article, I had
thoughts on this summers day, flooded with electro-magnetic waves from the
sun, after heavy rain fall, with the southern hem, in winter time and
Hi
I've always calibrated my phase noise setups to the phase slope of the mixer
I'm using. It does involve switching gains, but it's a direct system
calibration. Beat note is 360 degrees, so this chunk is x degrees and you
got y mv over that chunk. Check the slope on the other side of the beat
Dear tbolt-nuts,
A friend and I have played a little with zero baseline tests and
Thunderbolts.
Have some very early results, on measurements from two identical TAPR
Tbolts. These were connected to the same antenna. Its a good antenna, with
a rather open skyview. One receiver was hooked on a
Having a simple method of determining the preamp frequency response can
be a useful diagnostic tool during development, particularly if one uses
componets like super capacitors in the amplifier signal path.
If one doesnt have a suitable offset source handy the mixer ports can be
driven in
Hi
For a one time frequency response check, a directional coupler and a signal
generator do a pretty good job of creating a useful test tone.
Bob
On Aug 24, 2010, at 4:03 PM, Bruce Griffiths bruce.griffi...@xtra.co.nz wrote:
Having a simple method of determining the preamp frequency
Von: Bob Camp li...@rtty.us
If you start with a mixer that runs 500 mV / radian (an RPD-1 at the typical
8 mV / degree + 10%) then -180 below that would be 0.5 nV. Since noise it
coherent close in, the DSB to SSB process nets you 1 nV out when you have
-180 dbc noise.
Adding the
Hi
If you want a fairly clean 80 MHz, you will need a bit more bandpass filtering.
Doing the filtering and the phase shift at the same time probably makes sense.
Dif amp doublers may be simpler overall. Normally a doubler is implemented as a
single transistor stage driven to clipping with a
Hi
If the sidebands are un-correlated noise then they add as power (3db). If they
are correlated they add as voltage (6db). Noisy modulation processes produce
correlated sidebands.
Close in noise likely comes from a modulation process. Far removed noise is
unlikely to be a result of
Many thanks for posting that. I'll think about it and reply to you.
My first thought is that if you were born with the genes for a
creative brain, you just naturally want to take things apart.
Meanwhile, back to taking apart this frequency synthesizer.
Bill Hawkins
Started setting up a time-nuts board at:
http://forums.n4iqt.com/modules.php?name=Forums
Need ideas for topics.
Stanley
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To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and
Stanley, to add to what you already have, I'd recommend:
Rb Standards
Cs Standards
Other Oscillators
GPS
Test Equipment
and always a good one... Getting Started.
73 Brice KA8MAV
- Original Message -
From: Stanley Reynolds stanley_reyno...@yahoo.com
To: time-nuts@febo.com
Sent:
Whats the reason and motive for this ?
On 8/24/2010 8:50 PM, Stanley Reynolds wrote:
Started setting up a time-nuts board at:
http://forums.n4iqt.com/modules.php?name=Forums
Need ideas for topics.
Stanley
___
time-nuts mailing list --
Personal Preference, Restrictions with the mail list format, would like a
better
way to search content.
Stanley
- Original Message
From: Brian Kirby kilodelta4foxm...@gmail.com
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Tue, August 24, 2010
We'll good luck and happy trails...In respect for John Ackermann's work
and the TAPR list that time-nuts originated from, you should be
considerate and pick a different name.
Brian Kirby - KD4FM
On 8/24/2010 9:43 PM, Stanley Reynolds wrote:
Personal Preference, Restrictions with the mail
I think Manuals would be a great addition; however, there are already so
many places to download them and so many manuals out there... maybe a
sticky list of sources would be best. Microprocessors gets a bit off
topic as *everyone* has an opinion and their own favorite. That said...
Stanley,
It seems to me that we already have/had one somewhere [ ? ] or it was proposed
and started but did not get off the ground [ ? ] However, I could be wrong or
seriously confused.
The nature of the timenuts list was supposed to be a low key - low noise list,
not a beginners QA service and
Stanley,
I was under the impression you already had the permission of the *founders*
to use the time-nuts name to start up this new forum. Was I mistaken?
73 Brice KA8MAV
- Original Message -
From: WB6BNQ wb6...@cox.net
To: Discussion of precise time and frequency measurement
I don't have any of the toys I had as a kid because I was always taking them
apart to see how they worked. Most of the time I couldn't get them back
together and my dad wouldn't put them together for me. He said you took it
apart, you put it back together. When I got a little older I was
No, all my idea, I have not asked anyone's permission. I meant no disrespect.
Stanley
- Original Message
From: Heathkid heath...@heathkid.com
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Tue, August 24, 2010 11:26:21 PM
Subject: Re: [time-nuts]
Stanley,
how about the TIME-GURU name?
-Original Message-
From: Stanley Reynolds stanley_reyno...@yahoo.com
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Wed, Aug 25, 2010 6:44 am
Subject: Re: [time-nuts] Bulletin Board / Forum
No, all
On Tue, 24 Aug 2010 19:43:49 -0700 (PDT)
Stanley Reynolds stanley_reyno...@yahoo.com wrote:
Personal Preference, Restrictions with the mail list format, would like a
better
way to search content.
I don't think that a webforum will add any additional value that
the mailinglist doesnt have
On 25 August 2010 17:43, erniepe...@aol.com wrote:
Stanley,
how about the TIME-GURU name?
Or how about:-
time-sane
time-slow
time-not-so-nuts
time-nuts-beginners
time-nuts-non-exclusive
time-nuts-not-bruce
time-for-a-change
time-stupid-questions
or even:-
time-nuts-excluded
We are
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