A few years ago I bought an FE-5680A that had only a 1 PPS output - no
10 MHz. The part number is the same format as yours. It came on a
Motorola circuit board (not cutoff). It is programmable over a wide
frequency range (typically 100 Hz to 15-20 MHz), but you have to bring
out the signal
On Fri, Jun 8, 2012 at 11:22 PM, Ed Palmer ed_pal...@sasktel.net wrote:
... It is programmable over a wide frequency range (typically 100 Hz to
15-20 MHz), but you have to bring out the signal yourself,...
Any idea WHY someone would design something like that? A programable
frequency
A light bulb with a metal envelope could be used as a dummy load. ;-)
On 6/9/2012 12:35 AM, Chris Albertson wrote:
On Fri, Jun 8, 2012 at 11:22 PM, Ed Palmered_pal...@sasktel.net wrote:
... It is programmable over a wide frequency range (typically 100 Hz to
15-20 MHz), but you have to bring
El 09/06/2012 09:35, Chris Albertson escribió:
On Fri, Jun 8, 2012 at 11:22 PM, Ed Palmer ed_pal...@sasktel.net wrote:
... It is programmable over a wide frequency range (typically 100 Hz to
15-20 MHz), but you have to bring out the signal yourself,...
Any idea WHY someone would design
On 6/9/2012 12:35 AM, Chris Albertson wrote:
Any idea WHY someone would design something like that? A programable
frequency standard where the frequency does not come out of the box.
What next and audio amplifier that only drives an internal dummy load?
Light bulb with a metal envelope?
I had a go at making one in 1986 for a broken NBS unit (huge two 19 RMK,
single channel GPS), which had been damaged in transit. Used small sections
of semi-rigid coax soldered together.
It worked well enough to track SVs and get data we needed.
Rob K
-Original Message-
From:
Bob,
FEI as far as I know do own Morion. That's certainly what I was told when I
worked for Zyfer (also owned by FEI).
Rob K
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Bob Camp
Sent: 09 June 2012 02:15
To: Discussion of precise
They probably only wanted the 1 PPS. the DDS generates the 8.3 MHz
and feeds a fixed divider to generate the PPS.
Hence Eds's comments re these units a few posts back. I have a 5650 here
that was similar.
DaveB, NZ
- Original Message -
From: Chris Albertson
I have seen that FEI invested an 36% in 2004 and then reduced the
investment in 2007...
The Morion president Dr. Yakov Vorokhovsky visited my company one year ago,
we were buying the MV189 OCXO.
On Sat, Jun 9, 2012 at 11:37 AM, Rob Kimberley
robkimber...@btinternet.comwrote:
Bob,
FEI as far
Hi all;
Check Ebay auction # 180558168544, I have purchased a couple of these in the
past for le$$, the several sellers are offering these. There is a Loran version
also, so if you purchase be sure to note which one is offered.
Follow the link given to view Vaisala's info rergarding the whole
Raj, it was not a trouble: on the contrary it was a good exercise. I made a
QFH some time ago but it was not quite successful. After this reading I
will try again. I have an Advantest R3765A vector network analyzer (40MHz -
3GHz) so I can tell if the antenna can work.
On Sat, Jun 9, 2012 at 11:36
And try to put the unused I/O pins to GND too. Xilinx suggests, to reduce
noise, to ground the FPGA using as more free I/O pins as possible and
configure them as low logic level. Of course this trick does apply to other
brands too.
On Sat, Jun 9, 2012 at 6:54 AM, Hal Murray
I second that.
I normally keep the GPS on my phone turned off to save battery life, but when I
turn it on to use the map service for instance, I get a fix in as fast as a
couple of seconds. That makes it much more convenient than my Tom-Tom car GPS
and keeping the phone's GPS turned off unless
Hi
Looks like somebody bought it. If so - hope the batteries didn't leak all over
the inside. Should be a pretty good double oven in there.
Bob
On Jun 8, 2012, at 11:21 PM, Mark Spencer wrote:
Saw what looks like a military version of a vectron frequency standard on
eBay. Item number
Hi
Yakov is a pretty good guy. I doubt he would ever sell the whole company to
FEI. I believe there is still a Russian government provision in his charter
that effectively keeps 51% of the ownership Russian.
Bob
On Jun 9, 2012, at 7:25 AM, Azelio Boriani wrote:
I have seen that FEI
Hi
They certainly own a co-production facility located inside the Morion factory
in St. Petersburg. It's a *big* 1930's era building with lots of space.
Bob
On Jun 9, 2012, at 5:37 AM, Rob Kimberley wrote:
Bob,
FEI as far as I know do own Morion. That's certainly what I was told when I
On 8 June 2012 09:31, Raj vu2...@gmail.com wrote:
I came across this article. I dont understand Italian!
From RadioKit Elettronica 2003-03
https://dl.dropbox.com/u/10377704/IV3QBN%20QuadHelix.pdf
Cheers
--
Raj, VU2ZAP
Bangalore, India.
I'd be interesting in trying to see some
Of course one of the most challenging part of the EM simulators is
preparing the correct model of the structure you want to simulate.
Unfortunately (for me) I'm mostly a try-it guy rather than simulate-it so I
prefer to build and try with test equipment. My first QFH was too high in
frequency
Do I detect a hint of frustration, Chris? :-)
I agree with Rex's comments that the most likely reason for this is a
building block process of combining standard modules to meet a
customer's requirements.
Some years ago I came across a 10 GB hard drive that came from a family
of drives that
I have a SRS SR620 that when an input channel is connected to the Ext Ref out
has Flicker of about 3 digits of jitter/noise/drift. My experience is that
most counter monitoring their external reference will be stable to one count
with only an occasional larger jump. Magnus told me he has a
In contrast, the same seller tries to get $1300.0 for this coil !!!
ebay Item # 200728874248
Ignacio
El 09/06/2012 5:21, Mark Spencer escribió:
Saw what looks like a military version of a vectron frequency standard on eBay.
Item number
251075220188
The under $100.00 buy it now price
Hi
There is a fairly detailed calibration procedure for the SR620. I don't
remember all the steps, but it does indeed reduce the reading jitter.
Bob
On Jun 9, 2012, at 11:49 AM, Tom Knox wrote:
I have a SRS SR620 that when an input channel is connected to the Ext Ref out
has Flicker of
On 03/06/12 16:59, paul swed wrote:
Sounds like a better antenna and location might be the trick. You don't say
how high what coax length and type...
Since you do not have a manual you sat mask angles may also be causing an
issue by eliminating possible sats.
But weak signals will do exactly
On Sat, Jun 9, 2012 at 10:34 AM, Paul Flinders p...@flinders.org wrote:
Went off to do some other stuff then came back to find it just in a loop
resetting itself, running for a few seconds, then resetting itself again.
It had also clearly forgotten it's idea of the current time as it now
That's amazing, the current stock list price is $745. Anyone up for the
'eBay premium'?
On 6/9/2012 10:58 AM, EB4APL wrote:
In contrast, the same seller tries to get $1300.0 for this coil !!!
ebay Item # 200728874248
Ignacio
El 09/06/2012 5:21, Mark Spencer escribió:
Saw what looks like a
On 09/06/12 18:42, Chris Albertson wrote:
Could be any kind of internal failure.
Yes, it's got the feeling of a processor problem, duff RAM or similar.
But I'd check out the antenna and
the antenna feed line. I've seen broken ground shields and water wicked
inside the coax, is there DC in
Thanks Bob;
It would be great if these are all cal issues. The offset is most likely
calibration related, but I will be surprised if the jitter in a cal issue. It
is certainly possible. I am thinking a weak/noisy cap.
Thomas Knox
From: li...@rtty.us
Date: Sat, 9 Jun 2012 12:58:12 -0400
On 9 June 2012 15:53, Azelio Boriani azelio.bori...@screen.it wrote:
Of course one of the most challenging part of the EM simulators is
preparing the correct model of the structure you want to simulate.
Agreed.
Unfortunately (for me) I'm mostly a try-it guy rather than simulate-it so I
Yes, you are right and this is the problem I have. I'm aware that wonderful
things can be done starting with a simulator, not just tell whether or not
the antenna will be on frequency. I have to fill the gap and learn how to
successfully use a simulator.
On Sun, Jun 10, 2012 at 12:03 AM, David
On 10 June 2012 00:14, Azelio Boriani azelio.bori...@screen.it wrote:
Yes, you are right and this is the problem I have. I'm aware that wonderful
things can be done starting with a simulator, not just tell whether or not
the antenna will be on frequency. I have to fill the gap and learn how to
On 10 June 2012 01:39, Jim Lux jim...@earthlink.net wrote:
NEC can do a pretty good job on a helix, and it's free. I like 4nec2 as a
front end.
I've never tried NEC on them. I quite like MMANA-GAL myself. But it
only supports NEC2.
NEC will also do a patch: Model it as a grid of wires using
On 10 June 2012 02:05, gary li...@lazygranch.com wrote:
My recollection is NEC2 has a bug (i.e. can't model) conductive booms.
It's not a bug.
Essentially the current is assumed to flow in the direction of the
segment, which is not the case on a boom. It's that assumption that
worries me in
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