Hi folks,
Well I woke up the other morning at 2am to find all the power off in the
house. I was about to ring the power company and thought I'd better check my
meter box. Turns out one of the RCDs had tripped. I reset it and all was
fine.
What puzzled me was what tripped it. It took out my
I don't know the value of that resistor, but suspect that its cremation was
collateral damage as something else failed short circuit.
Dave
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Jim Palfreyman
Sent: 17 February 2009 10:13
To:
Hi Jim,
you may have a problem similar to mine.
In Sydney, with a nominal supply voltage of 240 Volts,
the supply at my place is above 250 volts. The supply authority
says that is in the limits of their specification.
I do not know why they run it so high, maybe they think they will
sell more
Jim Palfreyman wrote:
Has anyone else had this problem?
The PSU that came with my Thunderbolt was DOA as well, like yours there
was the characteristic smell of burnt electronics when I opened it up.
I was lucky, I managed to get an almost exact replacement at a local
electronics shop and,
Swollen capacitors or ones with a little volcano hole are a clue, but there
may be other components that have been stressed but are not yet dead and now
have a shortened life-expectancy. Had this problem with my iMac. Died 3 days
after the smoke alert.Best of luck!
Martin G8BHC
2009/2/17 Dave
Hi Frank,
The Rockwell 11577-11 is found in most TU-DXXX Rockwell-Jupiter GPS
receivers. I've never seen anything like a RF switch on them, but you could
have a custom or exotic one :). What they do have most times is a model
number etched or printed on the PCB. Doesn't yours have one?
You can
Hi Roberto,
On 2/17/09, Roberto Barrios rbarri...@msn.com wrote:
Hi Frank,
The Rockwell 11577-11 is found in most TU-DXXX Rockwell-Jupiter GPS
receivers. I've never seen anything like a RF switch on them, but you could
have a custom or exotic one :). What they do have most times is a
Jim,
I had a TAPR Thunderbolt connected to the power supply that came with it and
left it on for several days. My location is bothered by various power
spikes and outages.
After one power outage that tripped the circuit breaker to the work shop, I
discovered the Thunderbolt injured (no
On 2/17/09 2:38 AM, Neville Michie namic...@gmail.com wrote:
Hi Jim,
you may have a problem similar to mine.
In Sydney, with a nominal supply voltage of 240 Volts,
the supply at my place is above 250 volts. The supply authority
says that is in the limits of their specification.
Lux, James P wrote:
I do not know why they run it so high, maybe they think they will
sell more power.
The problem is that many appliances have a 240 or 250 maximum, dual
power supplies for 110 V
switch to take 220 V.
That's actually pretty unlikely. 110V might be what it says on the
As another matter, at light loads in your house/neighborhood, the
voltages will rise, since the distribution voltage is usually set up
so that at nominal load, it's correct, and that allows for some IR
drop in the lines.
I got interested in this area a while ago. PGE replaced the
We had a thread a while back about Dranetz power monitors and UPS built in
monitors. All nice to have, another older technology for power problems is
ferroresonant UPS. More copper and weight as well as a little less efficient
but I like the rugged and simple design. You will also see power
Any chance it is a Jupiter?
http://www.gpskit.nl/gps-readme.html
If so, they are fine receivers. THe header pins are 2mm spcing - same as used
on laptop hard drive adaptors
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Hi there,
my Watts Up? power meter showed a reading of 130V+ one day coming from PGE
here in NorCal. I confirmed this with another meter.
_https://www.wattsupmeters.com/secure/products.php_
(https://www.wattsupmeters.com/secure/products.php)
I called PGE, and they were surprised that
On 2/17/09, Tom Clifton kc0...@yahoo.com wrote:
Any chance it is a Jupiter?
http://www.gpskit.nl/gps-readme.html
If so, they are fine receivers. THe header pins are 2mm spcing - same as
used on laptop hard drive adaptors
It uses the same two chips (at least in one photo of a jupiter I
Thanks Bruce for your answer, it was the only one!
73, Alf
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Hi Alf,
if you can get an M12+ from iLotus, that's not too shabby either. M12M is
the king of the crop though as Bruce said.
Now you got two answers :)
bye,
Said
In a message dated 2/17/2009 13:50:54 Pacific Standard Time,
alf.pou...@surffi.net writes:
Thanks Bruce for your answer,
Well, actually there are some geodetic quality carrier phase based units out
there... $25,000+ a pop...
-
M12M is the king of the crop though as Bruce said.
_
See how Windows Mobile brings your life together—at
Hi there,
I did see that in the recent GPS World receiver survey, but Javad for
example only claims 3ns rms accuracy...
The m12+ claim 2ns rms in the old Motorola literature, but that only with a
properly surveyed antenna, sawtooth compensation, and good antenna-delay
calibration of
Well, actually there are some geodetic quality carrier phase based units
out there... $25,000+ a pop...
There are dual/triple frequency geodetic receivers with external frequency
input available in the $3k-4k range.
The CMC/Novatel SuperstarII used to be available for ca $300 with carrier
b...@lysator.liu.se wrote:
Well, actually there are some geodetic quality carrier phase based units
out there... $25,000+ a pop...
There are dual/triple frequency geodetic receivers with external frequency
input available in the $3k-4k range.
The CMC/Novatel SuperstarII used to be
Hi there,
I did see that in the recent GPS World receiver survey, but Javad for
example only claims 3ns rms accuracy...
Where do Javad claim 3ns accuracy?
+
[ZA], [ZB] PPS Offset
struct PPSOffset {5} {
f4 offs; // PPS offset in nanoseconds
u1 cs; // Checksum
};
Due to a hardware
Björn
The Superstar II is now obsolete.
Last orders were taken last year.
Bruce
Bruce,
Yes, I know.
The CMC/Novatel SuperstarII used to
**
Sorry for not beeing clear enough.
--
Björn
___
time-nuts
b...@lysator.liu.se wrote:
Björn
The Superstar II is now obsolete.
Last orders were taken last year.
Bruce
Bruce,
Yes, I know.
The CMC/Novatel SuperstarII used to
**
Sorry for not beeing clear enough.
--
Björn
Is it
I really need to put in a feed through to the roof because my Z3801A
is struggling with an indoor antenna too; but the roof needs to get
replaced first...
Speaking of antennas and roofs
Currently, my antennas are inside. That's good enough most of the time.
It's also good for
Is it possible to reprogram Superstar II's to produce carrier phase
outputs?
This may be of interest if some non carrier phase versions were
available at the right price.
Yes, there is a DOS-program. But you need some codes from CMC/Novatel to
unlock extra features you want.
Or would it be
Hi Hal,
A metal roof is generally used for those areas that have heavy snow. Such a roof
would be disastrous for the GPS if the antenna is low on top of the roof because
of reflections. A metal roof would be harder to seal, I would think, for holes
drilled through it. Also a metal roof can be
Yup, running my T-bolt on an indoor patch antenna hoisted to the apex of a
skylight. Works fine.
My GPS NTP server uses a bullet antenna mounted on a short (~1ft) pole
bolted to a block of wood on the side of the house, feedthrough is PVC pipe
going through the wall with a 45-degree coupler on
You might as well forget using an indoor antenna for GPSDO use. For best
performance, you need an antenna which sees the top of the sky (say down to 30°
elevation) really clearly, and ideally you want an antenna designed for timing
applications, which favours high angle satellites.
This is
Hal,
If your new roof will have a ridge vent you can poke the antenna cables
through it to the outside leaving enough slack to create a drip loop before
continuing to the antenna(s). Since the ridge vent follows the slope of the
roof the cable will exit on the down side so water will run off.
Depending where you are most homes have sewer vents. I have used this
repeatedly in the US and in Germany. This is a PVC pipe going through the roof
and
normally well sealed by the roofer, but open on the top. In the past Radio
Shack had pipe to pipe clamps the pair for less than $10. You
Hello Hal,
You can find roof penetrations in the plumbing dept of Home Depot or Lowes.
Some will handle from a 4 (ID) PVC pipe used as a drain vent, down to a
1 trade size pipe.
I prefer the rubber gland on sheet metal, vs. the rubber gland on plastic.
Using the white DWV (drain waste vent)
Down here in NZ, a common form of TV antenna mount is the 'hockey
stick', which is a J-shaped pole with a plate for barge-board or gable
mount (on a vertical surface) and a vertical pipe about 1m long and 20mm
diameter. A typical pipe-mount GPS antenna is easy to mount on this,
either directly
Hi,
in the previous edition of the magazine GPS WORLD there is a GPS receiver
survey, in the table they state 3ns rms timing, but there is no clear
definition
what the measurement details are.
bye,
Said
In a message dated 2/17/2009 15:51:15 Pacific Standard Time,
b...@lysator.liu.se
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