Hi Didier,
I tried this with a Maxim video amp, and my 10MHz noise floor went from
-155dBc/Hz on the input to about 80-90dBc/Hz on the output of the amp.
80dBc is great for Video (generally arund 50dB SNR), but for timing it's a
catastrophe...
bye,
Said
___
Yes it is. I use an Extron ADA 6 300MX, it has 4 inputs and each input has 6
outputs. If you do not care about delay, one output from each can be used to
drive the input to the next set of inputs. So, in that configuration you
could have 1 input and 21 outputs. That is what I use in my lab to
distr
It is reasonable to use a standard video distribution amplifier to
spread the good 10 MHz from a stable reference generator?
It seems those provide moderate (usually adjustable) amplification,
isolation of the various outputs (even though they do not have ground
isolation) and should be appropr
A while ago I picked up an OCXO and have been thinking about putting it
to use. I'm wondering if anyone has any specifications. I am mainly
interested in how good the phase noise numbers might be.
The OCXO is 10 MHz. Made by Electronic Research Co.
EROS-800-SMI-1
Seems to be 1995 vintage.
Runs on
> Hi Tom:
>
> I'm making progress on my precision clock and am wondering how the clock
> in the HP 5071 is set and in particular how leap seconds are handled?
> Also is there some way to move the edge of the output 1 PPS? How close
> is the Sync function?
>
> http://www.pacificsites.com/~brook
> Tom,
> What I want to look at is how interference is affecting the GPS timing
> rcvrs. I have looking on three different recievers NovAtel, M12 and Leica.
You need to quantify "interference"; not just power
level but frequency, direction, modulation, duration,
spectrum, etc. You may find the cha
Usually lacquer thinner will take it right off, but
it depends on the conformal coating. Nothing will take
the urethane variety off.
-Chuck Harris
Christopher Hoover wrote:
> fellow time-nuts,
>
> there is a hard, clear conformal coating on one of the buffer/divider
> boards in my FTS 4050/S24
fellow time-nuts,
there is a hard, clear conformal coating on one of the buffer/divider
boards in my FTS 4050/S24. i wish to make some changes to the board to
get back the 10MHz output that was removed with option /S24.
to do so, first i need to get this coating off in a few areas.
anyone
See:
http://www.synergy-gps.com
http://www.synergy-gps.com/content/view/35/60/
http://www.synergy-gps.com/images/stories/guides/m12+userguide.pdf
page 48 -- M12+ as a Precision Timing Receiver
pages 166,167 -- @@Hn 12 Channel T-RAIM Status Message
/tvb
- Original Message -
From: "Phaysal
Hi,
Please include me in the "wants Widget" catagory!
Just lit off my m12+t wednesday. Spent the last few days wondering just what
the "sawtooth" furor was all about.
Figuring out how to parse the delay from the @@HN string and diddling some
sort of delay block sounds like fun.
Love to lurk!!
No
Faisal,
The M12 manual, or at least a command reference,
should be online at: www.synergy-gps.com. You're
looking for one byte in the periodic @@Hn message
(these are binary, not ascii like NMEA). The code I
use looks like:
struct _Hn {
byte header[4];
byte pulse_on;
byte pulse_gps;
Tom Clark, K3IO wrote:
> For the Time-Nuts folks: Would there be any interest in a PCB "widget"
> that would correct the Motorola receiver if we were to make it available?
>
Definately.
-glenn
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