Hi,
I think you would find it surprising what is still restricted. While
searching for data on the FTS/Datron/Symmetricom 1000B I discovered that
Datron/Symmetricom got hammered for trying to export a couple of OXCO's
to India. I can't find the link at the moment but they settled at
$35,000.
A lot
Hi Again Hal,
There are standards for de-militarisation, you used to be able to
download manuals on it from the LOGSA web site but they seem to have
closed up that information source :-( I remember a couple of examples,
when they sold Jeeps in the UK for scrap you had to either cut them
diagonally
Hi,
This is not unusual, it's common with units that have transformer
isolated inputs, have a look at an old thin Ethernet card and it's BNC
socket.
Robert.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Joseph Gray
Sent: 19 March 2007 00:45
To:
Hi Brooke,
I notice that Murphy's Surplus in San Diego now specify NO exports of
any item!
I guess mike has had a warning.
Robert.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Brooke Clarke
Sent: 18 March 2007 18:59
To: Discussion of precise time and
Hi Everyone,
Some days back I emailed on the group regarding the jitter in the sampling
clock of ADC. I have tried the phase modulation method for producing the
jitter.
I used the HP 8648B Signal generator for this experiment. I modulated the RF
wave (at 10 MHz) with noise using the
Bilal Amin wrote:
Hi Everyone,
Some days back I emailed on the group regarding the jitter in the sampling
clock of ADC. I have tried the phase modulation method for producing the
jitter.
I used the HP 8648B Signal generator for this experiment. I modulated the RF
wave (at 10 MHz) with
Interesting.. Thought India was OK, and OCXOs are usually fine as
unrestricted. Even Rb or Cs should have been OK with an End User statement.
Maybe the Indian customer was selling on to somewhere restricted (not
unheard of!!)
Rob
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL
- Original Message -
From: Dr Bruce Griffiths [EMAIL PROTECTED]
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Monday, March 19, 2007 9:25 PM
Subject: Re: [time-nuts] Producing jitter with Phase Modulation
Bilal Amin wrote:
Hi Everyone,
Some
This is kind of on the same topic as the government surplus chit-chat...
Just curious but has anyone bought stuff from the website:
www.govliquidation.com
I just started looking at it last night, they have a ton of stuff and right
now everything has zero bids. I don't know if people all
Some interesting goodies on offer!!
Rob
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jason Rabel
Sent: 19 March 2007 15:12
To: 'Discussion of precise time and frequency measurement'
Subject: [time-nuts] Government Liquidation
This is kind of on the
At 16.12 19/03/2007, you wrote:
This is kind of on the same topic as the government surplus chit-chat...
Just curious but has anyone bought stuff from the website:
www.govliquidation.com
I just started looking at it last night, they have a ton of stuff and right
now everything has zero
Interesting. Yes, I noticed that 'you' have to pick it up (or find some
service to do it for you).
I'm in Houston so I wouldn't mind driving around to the few locations here
in Texas. Though it seems like most of the good test equipment stuff is
located in Norfolk VA... Anyone live near there?
Bilal,
The GR noise generators were specified for total noise voltage in a
specified bandwidth. With the HP signal generator input limited to 10KHz,
your observation of increasing noise as the GR source bandwidth is reduced
is as expected. You are simply applying more of the GR's output to the
At 11:26 AM 3/19/2007, you wrote:
At 16.12 19/03/2007, you wrote:
This is kind of on the same topic as the government surplus chit-chat...
Just curious but has anyone bought stuff from the website:
www.govliquidation.com
I just started looking at it last night, they have a ton of
Jason,
This source has some serious limitations.
1) Most of the stuff is REALLY tired. You certainly should check each item
before bidding.
2) While all items are available for inspection prior to the auction close,
you are not allowed to
do anything more than pick stuff up look at it
Like jshank, it is a real buyer beware sort of deal even if you can
inspect things in person. If you have a problem, the customer service is
the worst! You have to wait two weeks for an answer sometimes. Even if
your dispute is serious, you may not even have a chance to appeal their
I bought from DRMS directly before they contracted to govliquidation
and also from GL. I can say that it was smart of the govt. since they
(GL) are getting a lot more for each lot. That being said, it's
always been a case of caveat emptor. They have lots of interesting
stuff that doesn't
Thanks for all the information and feedback, I figured some of you guys
would have bought stuff from them before.
I was going to just 'wait and see' what some items went for on this big
upcoming auction at the beginning of April, unless there is some rare
obscure item that I see and just have to
I was planning on mounting one of those Lucent 26dB antennas in my attic,
and was wondering what the signal strength would be like through the asphalt
shingles. If I do that then it's just pretty much a straight drop down the
wall into the computer room. Would that work (have acceptable signal
Jason,
I'm using 4 VIC-100s inside, under a flat concrete roof in my single story
office. Tracking 8 satellites on each receiver module on both my CommSync
units. Each one connected to Rx via a coiled up 50 ft length of RG-59.
Yours should work OK. What cable and what length are you planning on
I was planning on mounting one of those Lucent 26dB antennas in my
attic, and was wondering what the signal strength would be like
through the asphalt shingles. ...
Can you try it with some sort of kludge setup before you make a clean
installation?
I use one in my junk room. It only
Rob,
I was just going to use some RG-58, and if I can mount it in the attic then
I probably won't need to run more than 15-20ft at most. Loss along the cable
should be minimal since the run will be short, I just didn't know how much
the roof would block the signal.
Jason
Jason,
I'm using 4
T-N's
For those of you that are interested in clock displays as I am, here's a linke
to another scope clock that
I thought was very attractive. http://www.timefracture.org/vectclk.html
This fellow is quite the electronic hobbiest (but I'm disappointed that he
didn't go for something a little
Loss in the cable will be in the range of 5 - 7 dB plus connector
losses. Let's say about 10dB max.
Looks OK to me.
How did you decide it's going to work?
He's using the 26 dB version, not the VIC-100.
He didn't tell you how sensitive his receiver is. I'd expect newer ones
would work
lol, it's okay, I wasn't looking for a scientific answer (especially since
there are so many unknowns).
I just wanted to know if it was even possible to pick up a signal through
the roof, as I *thought* I read before some people would put them near their
ceiling and such.
If it doesn't work, not
This came today from a non-time-nuts email source:
Someone had the soundtrack to this posted but it
got lost somehow or removed or whatever But now
it has been resurrected! Now with a graphic showing
the studio along with some text. A spoof on Clear
Channel Communications as well as WWV.
I love it! Thanks for the link.
- Original Message -
From: Bill Jones, K8CU [EMAIL PROTECTED]
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Monday, March 19, 2007 3:53 PM
Subject: [time-nuts] WWV spoof
This came today from a non-time-nuts email
A few displays generated by Jan de Rie's nifty $35 clock board (
http://www.dutchtronix.com/oscilloscope_clock.htm ) on my modest Tek
collection:
http://www.ke5fx.com/clocks/clocks.htm
Not recommended for low-end DSOs, that's for sure!
-- john, KE5FX
-Original Message-
From: [EMAIL
I have 3 antennas in my shack, upstairs. The attic is pretty high, so
the antennas are still a good 10 to 12 feet below the tip of the roof,
which is covered with shingles.
They work fine there, but worked very badly when they were at eye level
in the same room, probably because of multipath.
From: Didier Juges [EMAIL PROTECTED]
Subject: Re: [time-nuts] GPS Signal Strength Through Roof?
Date: Mon, 19 Mar 2007 19:26:47 -0500
Message-ID: [EMAIL PROTECTED]
I have 3 antennas in my shack, upstairs. The attic is pretty high, so
the antennas are still a good 10 to 12 feet below the tip of
Jason Rob,
When using suboptimal antenna siting, do not expect stellar GPS
performance. Tracking satellites is good, but it says nothing about how
bad multipath environment your antenna/receiver is subjected to.
--
Björn
On Mon, March 19, 2007 19:12, Rob Kimberley said:
Jason,
I'm using
Pete,
Thanks for your valuable information. You have explained exactly what is
happening and I have got it finally. I have a digi. oscilloscope with a
jitter measurement option, but it is only for square waveforms.
Unfortunately the Sig. Gen. I am using has no option for square wave. I
think I
I've been doing a lot of reading recently on time-related topics.
There's a lot of good info out there on time theory, the physics of
atomic clocks, time transfer, etc, but little on practical precision
And that's sort of why we started this list! Welcome.
time measurement, a topic on
Hi all,
I have a run-of-the-mill frequency counter (8 digits, 0.1 and 1.0 sec gate,
no reference oscillator output or ext. input) and would like to upgrade to
something better. I would initially like to measure frequencies in the 10
MHz or below range with a resolution of better than 0.1 Hz.
From
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