On Fri, 26 Oct 2012 11:46:35 +1100
Tom Harris celephi...@gmail.com wrote:
I have been asked the viability of using a vanilla TCXO, with an
accuracy of +/- 0.5ppm (+/- 15 secs per year) that is disciplined
occasionally (perhaps only once a month) with a GPS module. The
application is for an
If you cannot see the horizon because of obstructions (what else?), these
obstructions are likely to be a source of multipath. So while technically you
do not need to see the horizon, any obstruction above the horizon could cause
problems. Of course, distant trees or a hill are less likely to
On Fri, 26 Oct 2012 08:06:49 -0500
shali...@gmail.com wrote:
Also, some antennas are better at rejecting low angle signals than
others. While the software can reject some undesired signals, it
can only do so if the software can identify them as separate.
If the multipath signal destructively
On 26 Oct, 2012, at 08:06 , shali...@gmail.com wrote:
If you cannot see the horizon because of obstructions (what else?), these
obstructions are likely to be a source of multipath. So while technically you
do not need to see the horizon, any obstruction above the horizon could cause
Hi
If we are talking about timing performance of normal servers, multipath
really isn't much of an issue.
Unless you are running an OS with real time code (as in *not* Windows and
*not* standard Linux) the timing stability isn't good enough to be bothered
by the level of distortion that
On Fri, 26 Oct 2012 12:53:02 -0500, Dennis Ferguson
dennis.c.fergu...@gmail.com wrote:
Also, some antennas are better at rejecting low angle signals than others.
While the software can reject some undesired signals, it can only do so if
the software can identify them as separate. If the
Thought I'd repost this with a different subject line as I think more
members will see it now!
Found this neat mini Ovenized VCXO on the auction site.
Check out item # 310380778466
and the data sheet at:
http://www.microcrystal.com/CMSPages/GetFile.aspx?nodeguid=8f7cfa22-c317-
Yes indeed I know these well they are used in the Odetics GPStar rcvr.
They can be disciplined quite well. Also fast warmup and the power goes
down pretty quickly.
Regards
Paul
On Fri, Oct 26, 2012 at 5:44 PM, cdel...@juno.com wrote:
Thought I'd repost this with a different subject line as I
On 10/26/2012 11:44 PM, cdel...@juno.com wrote:
Thought I'd repost this with a different subject line as I think more
members will see it now!
Found this neat mini Ovenized VCXO on the auction site.
Check out item # 310380778466
and the data sheet at:
Dear Magnus,
Thank you. I didn't notice until your last message. Nice opportunity. I
immediately grabbed a couple of them. You never know when you will need them.
How kind of you to share this information.
You have a nice weekend!
Edgardo Molina
Dirección IPTEL
www.iptel.net.mx
T : 55
I made an offer of 14 pounds each for two of them that was accepted.
I wonder what the temperature it runs at is? maybe put it inside another
oven that uses a PTC heater.
Tom
- Original Message -
From: paul swed paulsw...@gmail.com
To: Discussion of precise time and frequency
The frequency of 1190 indicates an AM station. I assume you mean 30 Hz. An
error of 30 KHz would attract a lot of attention from Charley.
Regards.
Max. K 4 O DS.
Email: m...@maxsmusicplace.com
Transistor site http://www.funwithtransistors.net
Vacuum tube site: http://www.funwithtubes.net
On 10/17/2012 12:31 PM, Chris Albertson wrote:
On Wed, Oct 17, 2012 at 12:50 AM, Sarah White kuze...@gmail.com wrote:
Hi again everyone :)
Originally I was hoping for a thunderbolt. The control / diagnostic
software looked cool, but I couldn't afford the pricetag on one.
...Here's my
It would attract a lot of attention from people not finding it at the right
place on the dial.
On 10/26/2012 10:09 PM, Max Robinson wrote:
The frequency of 1190 indicates an AM station. I assume you mean 30 Hz. An
error of 30 KHz would attract a lot of attention from Charley.
Regards.
Hi
Not to mention attention from the guy who *should* be 3 channels over …
Bob
On Oct 26, 2012, at 10:31 PM, Peter Gottlieb n...@verizon.net wrote:
It would attract a lot of attention from people not finding it at the right
place on the dial.
On 10/26/2012 10:09 PM, Max Robinson wrote:
Looks like they _might_ have been 30 _Hz_ out... I had to tune to 1188.97
to get a 1kHz beat in upper sideband mode a few minutes ago but they are
within 10Hz of where they are supposed to be now - according to my radio
anyway (I just checked the radio against WWV at 5MHz and it was less than
10Hz
I've used the HP 3586 for measuring AM carrier frequencies as well as my Tek
495P (both referenced to Rb) for higher frequencies such as air band.
Some carriers are dead nuts on while others are quite far off (at least to my
mind) although I've never found one outside of its required
unfortunately, the XO supply is limited to 100 mA. that's an awesome
find though. I just snagged one.
-Eric
On Thu, Oct 25, 2012 at 12:59 PM, cdel...@juno.com wrote:
Hi,
Check this one out! I think it might work as long as the +5 volts can
source the oven current required.
Your part was
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