Melia alan.me...@btinternet.com wrote:
Joe, Cellphone frequencies are little affected by ionospheric effects, so I
would be surprised if that was an effect though GPS is a different matter,
or sat-phone.
Alan
G3NYK
- Original Message - From: Joseph Gray jg...@zianet.com
To: Discussion
I read about it yesterday. I suspect that we may already be seeing
some radio interference. At work this afternoon, my cell phone lost
signal entirely a few times. Although I don't get a great signal at
work, it has never lost signal completely before.
Joe Gray
W5JG
On Fri, Jul 13, 2012 at 8:50
I cannot duplicate the minor Netflix stoppage I had yesterday at the
leap second. Pausing Netflix before the top of the hour did not cause
a problem. Neither did pausing it just before 00:00:00 UTC today. So,
I assume that the glitch was caused by the leap second.
Joe Gray
W5JG
You might want some extra filtering for some applications, but for
lots of projects, this would be fine. I don't see how the Chinese sell
this stuff so inexpensively, especially with free shipping. If you
only want one, they cost about $2.00 each.
http://serverfault.com/questions/403732/anyone-else-experiencing-high-rates-of-linux-server-crashes-today
Wow, hard to believe that systems with recent kernels and updates
still can't handle a leap second. It's not like no one knew this was
coming.
Joe Gray
W5JG
That certainly helps :-) In any case, I ordered a few of these to use
with various projects.
Joe Gray
W5JG
On Sat, Jun 30, 2012 at 4:35 PM, Mark Sims hol...@hotmail.com wrote:
Chinese sellers offer free shipping because their shipping cost is $0...
the Chinese government pays the shipping
Success - Windows 7, running Meinberg NTP. Screen capture of two
desktop widgets that I use. In the video, note that 00:00:00 UTC hangs
for two seconds.
https://dl.dropbox.com/u/19599147/Leap%20Second%202012.m4v
Failure - My Galaxy Tab Android tablet, running the GPS Test app. Not
only did the
, or perhaps at midnight UTC. I'll have to experiment to
see if I can reproduce it.
Joe Gray
W5JG
On Sat, Jun 30, 2012 at 6:48 PM, Joseph Gray jg...@zianet.com wrote:
Success - Windows 7, running Meinberg NTP. Screen capture of two
desktop widgets that I use. In the video, note that 00:00:00 UTC hangs
While looking for something else in the archives, I saw mention of the
following book by a list member:
Experimentation: An introduction to measurement theory and experiment
design, By D.C. Baird.
I found an online, limited preview and it seemed very readable, so I
decided to purchase the book.
I came across this filter design recently and thought I'd build a few.
http://www.jwmeng.com/AppNote/AppNote003.html
I was about to place a Mouser order when I came across someone selling
filters, based on the above design.
filter. The output of most OCXO's already has a
filter on it. Combining two filters (especially high order ones) without
isolation between them is not a good idea. The resulting transfer function
will not be what you expect it to be….
Bob
On Jun 20, 2012, at 4:54 PM, Joseph Gray wrote:
I
I also picked up my TimePod out of the hands of no other than John Miles
himself.
I was recently reading the manual for the TimePod. It looks quite
nice. I'm curious as to the price. Or is this a case of if you have
to ask, you can't afford one?
Joe Gray
W5JG
Months ago, I ordered two FE-5680A units from nichgeek for my personal
use. They work just fine. Recently, I ordered one for work from the
same source.
For the work unit, I ordered a small 15 VDC switcher and a 5 V DC-DC
module from Jameco. Today, I wired it all up, using the same pinout as
the
Further information. I do get a Lock (low) indication on pin-3 and a
PPS on pin-6. Nothing at all on pin-7.
Joe Gray
W5JG
On Fri, Jun 8, 2012 at 1:41 PM, Joseph Gray jg...@zianet.com wrote:
Months ago, I ordered two FE-5680A units from nichgeek for my personal
use. They work just fine
people in far away places drill holes and wire up SMA connectors
to give them a 10 MHz output. If yours is one of those, the mod may not have
been 100% effective. Maybe a loose wire ….
Bob
On Jun 8, 2012, at 5:21 PM, Joseph Gray wrote:
Further information. I do get a Lock (low) indication
different Rb's on the same card.
Bob
On Jun 8, 2012, at 5:34 PM, Joseph Gray wrote:
This one has no SMA and hasn't been modded in any way that I can tell.
It came on a cutoff circuit board, like the others.
Joe Gray
W5JG
On Fri, Jun 8, 2012 at 3:29 PM, Bob Camp li...@rtty.us wrote:
Hi
Has Digital Voltmeter option and Universal Module option. No GPIB
option. I was going to keep this for spare parts, but decided to clear
out some stuff. The only testing I've done on it is to hook up my
GPSDO to channel A. It reads 10,000.001 KHz from a cold start. Make me
an offer.
Joe Gray
W5JG
I only post this on the list because I know some here would be interested.
Covers 10 KHz to 1050 MHz, -127 to +13 dBm. Does AM and FM modulation
of 400 Hz or 1000 Hz. Pics and specs here:
http://www.testmart.com/sp.cfm/SIGSOU/FLU/6060B/1.html
This unit works just fine, but the frequency and dB
Please tell us more about the program. What does it do that the
currently available program doesn't do? I don't count the Chinese text
as a bonus feature :-)
Joe Gray
W5JG
On Sat, Apr 14, 2012 at 9:44 PM, Ken Kubick kenkub...@hotmail.com wrote:
Here is more information on FE-5680 and a
You could cut up a military surplus RF blanket :-) For those who don't
know, you cover the radome of an aircraft with this when the radar is
transmitting, so you don't cook anyone nearby. I never knew how
effective it was, but I didn't walk in front of the aircraft, just to
be safe.
Joe Gray
W5JG
Back to GPIB, in the dark ages, I used one of the ICS boxes which used a Z80
to emulate an old HP desktop computer. For me, it was heaven. I just
translated the HP Basic to C.
Rocky Mountain Basic is a way to describe HP Basic out of Colorado without
getting sued.
HP BASIC was quirky, but
Has anyone used these guys? I have this model DMM and need it
calibrated. I can't afford to spend a fortune, as this is only for
hobby use.
http://www.teknetelectronics.com/Search.asp?p_ID=115pDo=DETAILHP%20-%20Agilent_3478A
Joe Gray
W5JG
___
and can burn one for you as well and send it
to you if needed. I am in Northwest Florida.
Joe
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]
On Behalf Of Joseph Gray
Sent: Sunday, March 18, 2012 2:18 AM
To: Discussion of precise
Joe I have never seen a NI controller as you describe. What I have seen is
that NI seems to garner rabid interest even at flea markets.
Paul,
The NI GPIB-232CV-A is a simple serial-GPIB converter. The CT-A
version is a full controller. I have used my CV-A with a terminal
program just fine.
As
The text file accompanying the EPROM file on KO4BB's site mentions
using this EPROM image with a NI controller. I have a NI GPIB-232CV-A.
Can I use the image with this controller? If so, I assume that I then
have the equivalent of an IOTECH controller?
I partially disassembled my GPIB-232CV-A and
-10 chips and can burn one for you as well and send it to you if
needed. I am in Northwest Florida.
Joe
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Joseph Gray
Sent: Sunday, March 18, 2012 2:18 AM
To: Discussion of precise
Since you guys know about and use this stuff, what can anyone tell me
about a Rockland 5110-37 programmable synthesizer? All I can find on
the net are references to a 5110-06, which is supposed to go up to 2
MHz. It obviously is programed via a large Amphenol connector on the
back. The are no
If neutrinos can have mass, then I guess neutrons can have orbits. But
what do I know? It's all Greek (letters) to me :-)
Joe Gray
W5JG
If you google nuclear shell model you'll find a good Wikipedia
article on the nuclear energy levels. Oddly enough, there is a similarity
between the
http://www.news.com.au/technology/sci-tech/nucelar-clock-100-times-more-accurate-than-atomic-clock/story-fn5fsgyc-1226297068083#ixzz1osFDYtyb
I didn't see a link to a more detailed article. This one tells you
almost nothing.
Joe Gray
W5JG
___
Yes, I caught that, too. I just chalked it up to the average
non-technical journalist, considering where this article was
published.
Joe Gray
W5JG
On Tue, Mar 13, 2012 at 5:27 PM, Michael Costolo
michael.cost...@gmail.com wrote:
I'll admit to being a bit rusty in my particle physics, but since
, Attila Kinali att...@kinali.ch wrote:
On Tue, 13 Mar 2012 12:37:02 -0600
Joseph Gray jg...@zianet.com wrote:
http://www.news.com.au/technology/sci-tech/nucelar-clock-100-times-more-accurate-than-atomic-clock/story-fn5fsgyc-1226297068083#ixzz1osFDYtyb
I didn't see a link to a more detailed article
Is an Austron 1201A of any use? I may be able to get one. What is a
rational price?
How difficult is it to get an analog output, so I don't have to use
the chart recorder? I didn't see any output connectors on it.
Any chance of documentation? Googling found nothing.
Joe Gray
W5JG
I don't have any PTS gear, but the Internet Archive has this old page:
http://web.archive.org/web/20080821140147/http://www.xertech.net/Tech/PTS.html
And a quick Google turned up these links:
http://w8bl.com/page/5
http://www.artisan-scientific.com/info/pts_3200_manual.pdf
I don't expect
I know it has been a while since the boards were sent out, but I
finally placed an order with Mouser to populate the two boards I
bought. I already have the unobtainium chips and can program the
PICs, so no problems there.
The question is, how do I use the PICTIC II after I've assembled it? I
John,
I appreciate your help. Among other things, I'm not sure what to do
with the adjustment pots after I finish building the board.
Speaking of software, I was wondering if anyone had written a program
for controlling the PICTIC II and logging the data. Using a serial
terminal can be tedious.
John,
Would using the 50 MHz XO option be something I should consider?
Joe Gray
W5JG
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I know the resolution can be enhanced by swapping out some parts, but it's
been too long to recall the details.
On the schematic is a list of alternate XOs. For 50 MHz, the 1000 pf
cap is changed to 180 pf. This is stated to give 25 ps maximum
resolution. If this simple change is all that is
Set up to measure an interval that is more or less ramdon or granteed
to cover the full range of the interpters.
The idea is to adjust each pair the stop and start sides to cover the full
range of possible of numbers without overlap or loss of resolution.
What source would I use to
without damage, and, amazingly, very promptly.
Not sure what, exactly, I will do with them yet, but they will certainly
have many possible roles.
Joe
WB4BPP
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Joseph Gray
Sent
Just one data point: Last night, I taped a thermocouple to the top
case of a unit and read 50C.
Joe Gray
W5JG
On Wed, Jan 11, 2012 at 7:12 AM, Robert Benward rbenw...@verizon.net wrote:
Arthur,
800mW will give you a 52C rise in junction temperature over ambient when not
mounted to anything.
With all the talk on the list about these things, and considering the
price, I could no longer resist temptation and ordered two from
nichegeek.
First, I was amazed at the speed at which I received these units. The
order was placed last Friday, the shipment went out late Saturday and
I received
on the main PCB (visible by removing the bottom
cover) - this seems to be the PCBA build date.
Regards,
Pete
On Wed, Jan 11, 2012 at 9:03 AM, Joseph Gray jg...@zianet.com wrote:
With all the talk on the list about these things, and considering the
price, I could no longer resist temptation
The first power supply I used couldn't provide enough current for the
startup of the heater, so I had to dig out another. After fixing that
issue, the first rubidium unit locked very quickly. For initial
testing, I'm using a scope, triggered on my HP Z3801A. After several
minutes of warm up (I
Sold. Thanks to all who inquired.
Joe Gray
W5JG
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and follow the instructions there.
I thought this might be of interest to the T.N. folks. Someone has
offered me a National Instruments PXI chassis with the following cards
in it:
PXI-8186 Embedded Controller
PXI-5600 2.7 GHz RF Downconverter
PXI-5620 56 MS/s Digitizer
If there is anyone who is interested in this unit, let me
Does anyone have any experience or comments on a Fluke 6060B? I was
offered one and it looks like something that I might find useful on
the bench.
Joe Gray
W5JG
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Sold. Thanks to all who inquired.
Joe Gray
W5JG
On Fri, Aug 26, 2011 at 10:34 PM, Joseph Gray jg...@zianet.com wrote:
I am getting rid of some extra stuff. I have a Z3801A for sale. This
unit is original and unmodified. It has been on the shelf for a while,
but worked just fine the last time
I am getting rid of some extra stuff. I have a Z3801A for sale. This
unit is original and unmodified. It has been on the shelf for a while,
but worked just fine the last time it was used. You guys know how much
these go for, so make me an offer.
Joe Gray
W5JG
Thanks for letting us know.
Joe Gray
W5JG
On Thu, Jun 16, 2011 at 12:19 AM, David J Taylor
david-tay...@blueyonder.co.uk wrote:
Folks,
The new Garmin 3.70 firmware which corrects the problem is now available
here:
I've never heard of it, but Google quickly turns up this web page,
where you can download it.
http://www.lfsoftpal.com/
Joe Gray
W5JG
On Wed, May 18, 2011 at 9:39 PM, Chuck Forsberg WA7KGX N2469R
c...@omen.com wrote:
Does anyone know if the lsoftpal softpal package is
available? This is a
There is a download link at the bottom of the right hand column.
Joe Gray
W5JG
On Wed, May 18, 2011 at 10:47 PM, Chris Albertson
albertson.ch...@gmail.com wrote:
Google found this
http://www.lfsoftpal.com/
it was everything but the software.
I had the idea too that I could monitor some
Power supply noise and ripple has been mentioned before, in relation
to OCXO's and rubidiums. So, what is considered acceptable in these
applications?
Joe Gray
W5JG
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I know that several list members have bought FE-5680A rubidiums. Of
all the various ebay sellers that you have bought this model from, who
would you recommend? If I wanted a straight 10MHz unit vs a frequency
agile unit, would you recommend a different seller?
Joe Gray
W5JG
On Wed, Apr 20, 2011
I recently picked up a GBC video DA that seems to do a good job. Like
you said, the NTSC stuff isn't wanted any more.
Joe Gray
W5JG
On Mon, Apr 18, 2011 at 7:39 PM, paul swed paulsw...@gmail.com wrote:
Used an extron for years. Now use Grass Valley video DAs.
Purchased a tray of 10-12 DAs like
As promised in another thread, I'm trying to read the ROMs on my
working 3314A. The six ROMs are Mostek MK36000, a 24-pin 8K x 8 part.
My programmer doesn't list these. A little Googling shows that this
part should be pin compatible with both the 2364 ROM and the 68766
EPROM. Neither one of these
The Easter egg plays fine on mine :-) It's rather lengthy, too.
Mine is in need of cal. I just replaced a dead lithium in it and when
I have time, I'm going to attempt the cal. I would love to be able to
sync it to my GPSDO if anyone knows how to add this feature.
Someone mentioned the EPROMS on
I have an Ovenaire 10 MHz oscillator that was pulled from some junked
equipment. Just for fun, I put it on the bench and hooked it up to a
variable power supply. Watching the frequency output with a counter, I
powered it up.
According to the schematic, the onboard voltage regulator circuit
After running overnight, the current draw has stabileized at 160 mA. I
tweaked the trim pot to set the frequency to 10,000,000.00 Hz, which
is the resolution of my counter. The counter is synced to the Z3801A.
The Ovenaire is exposed to ambient air, so I expect things to change
as the day warms
-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Joseph Gray
Sent: martedì 12 aprile 2011 17.37
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Ovenaire OCXOs
After running overnight, the current draw has stabileized at 160 mA. I
tweaked
Bill and Magnus,
Thanks for the tips. At this point I was mostly curious to see if the
oscillator worked and if it was reasonably stable. To let it cook for
a while, I will definitely have to put everything in a box. I am
getting a battery and putting the pieces together to run it off
battery or
Thanks for all the input. I looked closely at the connectors and they
seem to match some 50 Ohm connectors that I have. I have removed them
from the board and now have eight isolated BNC connectors for my
project.
Joe Gray
W5JG
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For those interested, Bill put the forum back online.
Joe Gray
W5JG
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and follow the instructions there.
I have an old Arcnet hub that I want to salvage the isolated BNC
connectors from. Arcnet used 93 Ohm coax. I know that there are 50 Ohm
and 75 Ohm versions of BNC connectors, but the ones from the hub look
like a 50 Ohm BNC to me.
I want to use these isolated BNC connectors for a frequency
...@rubidium.dyndns.org wrote:
On 04/07/2011 09:44 AM, Joseph Gray wrote:
Does anyone know what happened to the forum at
http://realhamradio.com? It has been in maintenance mode for quite
some time. I know that the other web pages are still available, but
the forum had additional information
Does anyone know what happened to the forum at
http://realhamradio.com? It has been in maintenance mode for quite
some time. I know that the other web pages are still available, but
the forum had additional information and discussion. Even if no new
posts are allowed, I hope the forum comes back.
If I were to buy an HP 10811A OCXO to use as a portable, battery
powered frequency standard, how would you recommend that it be powered
and packaged? Assume that the final package would be powered 24/7 and
sitting on a shelf most of the time. Prior to portable use, it would
be checked against my
As usual, lots of good replies and more links to things for me to read :-)
On the topic of rubidiums, I see three different brands on ebay. The
FE units sell for much more. What are the differences between the
three brands? Is the FE brand worth the price? Considering that these
are all used
Recently, the local area had an extended power outage. I have the
Z3801A on a UPS, but the outage lasted over an hour and the UPS
didn't. I have the information about adding a battery to the Oncore to
allow for faster startup. Is it safe to use a supercap instead of a
battery?
Joe Gray
W5JG
Isn't your real problem going to be that the oven on the oscillator has
cooled off? Or does the GPS lose the whole almanac, so the time to first
fix is forever?
Yes, the Oncore looses the almanac.
Joe Gray
W5JG
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Murray,
Do you have any details on the DDS? How difficult is it to change on
the fly if I wanted to?
Is the FE-5680A that you like +15V only?
Joe Gray
W5JG
On Wed, Apr 6, 2011 at 12:34 PM, Murray Greenman
murray.green...@rakon.com wrote:
Joe,
I have several of the FEI units. You pay more
You must work for the Department of Redundancy Department.
Joe Gray
W5JG
On Tue, Apr 5, 2011 at 5:16 PM, Greg Broburg semif...@comcast.net wrote:
Don't forget LCD Display - Liquid Crystal Display Display
Alternative to LED Display - Light Emitting Diode Display
Greg
On 4/5/2011 4:07 PM,
Hal,
Here are the results I got using your suggestion. The numbers may be a
bit different than last night as I'm not sure I'm using the same
cable.
A+, B+ = 18.9 ns
A-, B- = 19.4 ns
Obviously there is some difference in delay between the A and B
channels. Otherwise, the two numbers would have
. How do I know which one is
correct?
Joe Gray
W5JG
On Mon, Apr 4, 2011 at 8:25 PM, Joseph Gray jg...@zianet.com wrote:
Hal,
Here are the results I got using your suggestion. The numbers may be a
bit different than last night as I'm not sure I'm using the same
cable.
A+, B+ = 18.9 ns
A-, B
John,
Yes, they both do. However, only one has the DVM option that lets me
measure the voltage trigger levels. When I turned off preset and set
the levels manually to match, I got similar numbers to using preset.
On Mon, Apr 4, 2011 at 10:13 PM, J. Forster j...@quik.com wrote:
Does the counter
Hal, replies inline.
On Mon, Apr 4, 2011 at 10:21 PM, Hal Murray hmur...@megapathdsl.net wrote:
Here are the results I got using your suggestion. The numbers may be a bit
different than last night as I'm not sure I'm using the same cable.
A+, B+ = 18.9 ns
A-, B- = 19.4 ns
Obviously there
Thanks again to everyone who replied. I obviously have much more to
learn about this topic. I will do some reading and more experimenting.
The comments so far have put me on the right track.
Joe Gray
W5JG
___
time-nuts mailing list --
That's an interesting question. Does temperature have an effect on the
dielectric that changes the VOP? I'll have to try your experiment. Is
that worth ten extra credit points? :-)
The copper in the coax has a positive temperature coefficient, which
will contribute to an increased impedance
I assume you mean that impedance has an effect on VOP? Can you point
to any internet sources that explain this effect? Preferably something
not overly technical.
Joe Gray
W5JG
On Sun, Apr 3, 2011 at 4:11 PM, paul swed paulsw...@gmail.com wrote:
It does change vop
John,
I wasn't expecting the coax to be a precision standard. However, since
you bring it up, can you recommend something that I could use as a
precision standard to test a T.I. counter? Preferably something that
is inexpensive and easy to make.
Joe Gray
W5JG
On Sun, Apr 3, 2011 at 6:11 PM, J.
I have a borrowed HP 5328A with the Universal Module. I'm using
averaging mode and auto triggering. Counter does not have the OCXO
option. I'm using the internal oscillator, not locking to my GPSDO.
I was just messing around with a length of Belden 9273 and the 100 KHz
square wave output from my
Interesting followup. With the exact same setup, but replacing the tee
with a Wenzel power divider, I get 18.6 ns.
On Sat, Apr 2, 2011 at 7:42 PM, Joseph Gray jg...@zianet.com wrote:
I have a borrowed HP 5328A with the Universal Module. I'm using
averaging mode and auto triggering. Counter does
On Sat, Apr 2, 2011 at 8:06 PM, Bruce Griffiths
bruce.griffi...@xtra.co.nz wrote:
Resistive or rf power divider?
Using the latter may result in significant reflections.
RF divider. Perhaps I should make a resistive divider.
Joe Gray
W5JG
___
Thanks for the input. I'll try a bit more experimenting and see what I get.
As for the measured cable length, do I include the BNC connectors or not?
Joe Gray
W5JG
On Sat, Apr 2, 2011 at 8:03 PM, Bruce Griffiths
bruce.griffi...@xtra.co.nz wrote:
Bruce Griffiths wrote:
The measured delay
Yes, that is a better way of phrasing my question. If you are correct,
then that would make about 14 mm difference in my measured length,
which would bring me even closer to my calculated length. And the tee
may also be adding to my error margin. Time for more experiments :-)
Joe Gray
W5JG
On
If I understand you correctly, then I did not have things setup
symetrically. Now I have a tee on each of the A and B inputs. The
unused port on the B tee has a 50 Ohm terminator. Is this what you
mean?
With the above setup, using the shortest cable I have gives me 1.5 ns.
Adding the longer cable
Speaking of the 5328A, for strictly T.I. use, would having the OCXO
option be better? I have a different frequency counter that is much
better for that purpose.
Joe Gray
W5JG
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Oops. I just noticed that I had previously punched the wrong button
and had the wrong frequency out of the Spectracom. Using the loweset
frequency of 100 KHz (as I thought I was using before), the T.I.
readings are much more stable. Using these new numbers gets me even
closer to the measured cable
John, the intent was not to precisely measure the VOP, although I
would expect Belden cable to be fairly close. I'm just messing around
with a piece of equipment that I haven't used before and doing simple
experiments to see if I get reasonable results. I used to own a 5370A,
but it had something
Months ago a bought an old Delorme Tripmate for $5 (for that price,
why not?). Tonight I finally got around to fooling with it. After
finding out that it was designed to talk only to Delorme software
without some finagling, I got it to spit out NMEA data to Teraterm and
other programs.
I
iPhone
On Mar 3, 2011, at 1:06, Joseph Gray jg...@zianet.com wrote:
Months ago a bought an old Delorme Tripmate for $5 (for that price,
why not?). Tonight I finally got around to fooling with it. After
finding out that it was designed to talk only to Delorme software
without some finagling, I
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Joseph Gray
Sent: Thursday, March 03, 2011 4:07 AM
To: time-nuts@febo.com
Subject: [time-nuts] NMEA time off
Months ago a bought an old Delorme Tripmate for $5 (for that price,
why
I turned off all sentences except RMC. It is still showing about 2s
behind UTC. This model was made in the mid 90's. How many leap seconds
have we had since?
Joe Gray
W5JG
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The most recent Facebook incident involved 1/4 million Facebook
accounts that got listed on a new dating site without the user's
permission. That's one way to kickstart your dating site membership
(not).
Joe Gray
W5JG
On Fri, Feb 4, 2011 at 9:57 PM, Hal Murray hmur...@megapathdsl.net wrote:
Reading the article, it sure smells like something is going on and it
doesn't smell good. What's the going price for an FCC official, a
Congressman, Senator, etc.?
Joe Gray
W5JG
On Tue, Feb 1, 2011 at 4:09 PM, Pete Lancashire p...@petelancashire.com wrote:
I think any pure alkali metal basically has to be handled in a good vacuum
and moved around by distillation. It's easy enough as you are concerned
with grams, at most, not pounds of the stuff.
-John
You obviously didn't see the Myth Busters episode where they used
several pounds of sodium to
No details on how the extra Japanese satellite is making it possible
to get this accuracy.
http://www.crunchgear.com/2011/01/04/new-gps-system-boosts-accuracy-to-3cm/
Joe Gray
W5JG
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reading that they want your cell phone to guide you to a shop's
front door in a multistory building. There will be ceiling mounted pseudo
satellites using the same L1C signal to make that work.
Have Fun,
Brooke Clarke
http://www.PRC68.com
Joseph Gray wrote:
No details on how the extra
I was just impressed with the claimed accuracy for a civilian product.
Especially without having to do post processing.
Joe Gray
W5JG
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Geoff,
Thanks a lot for comparing firmwares. That hard information helps tremendously.
Joe Gray
W5JG
On Tue, Jan 4, 2011 at 8:46 PM, Kiwi Geoff geof...@gmail.com wrote:
Joseph Gray wrote:
If I am using the NMEA data (as in the Garmin is the only time
source), what firmware is recommended
If I am using the NMEA data (as in the Garmin is the only time
source), what firmware is recommended by all those using a GPS18x-LVC?
Joe Gray
W5JG
On Fri, Dec 31, 2010 at 1:52 AM, David J Taylor
david-tay...@blueyonder.co.uk wrote:
So, what is the final consensus as to which is the best
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