In message 595370411-1332118092-cardhu_decombobulator_blackberry.rim.net-18097
4826-@b1.c24.bise6.blackberry, shali...@gmail.com writes:
I was not concerned about processing power on a PC (or Mac for
that matter) but for the uC that was used in PHK's project.
That was sort of the entire point
In message 4f669a4d.3010...@lazygranch.com, gary writes:
DC in a transformer raises the low frequency corner a bit. Obviously not
a problem in your case.
I just double-checked, because that rang a bell. I did reinstate
the capacitors as 2.2uF films in the final article for exactly that
reason.
On 18 Mar, 2012, at 10:52 , John Seamons wrote:
They do talk about using the 11-bit Barker code for autocorrelation. But the
sync bits transmitted only match the Barker code if you interpret them a
little bit out-of-order.
The part of the paper that talked about the Barker code confused me
Hello to the group
Joe here are the exact model numbers that I have and do indeed work.
IOmega488a
IOtech Micro 488a
IOtech 488ex
IOtech serial 488a
Black Box 232 to 488a
If I would run across other units at $5 as I have in the past I would
indeed try the mod.
I think the key to the discussion is
The Samsung phone/tablet Galaxy NOTE has a combined GPS Glonass receiver,
of very good sensitivity. For instance, in an indoor location near windows,
it sees 7 GPS satellites, while a Chinese car GPS sees only 3. In addition,
it sees 4 Glonass satellites. AFAIK it is the first affordable combined
The NOTEs GPS-Glonass receiver shows the satellite´s number. In a certain
instance, numbers 71, 76, 86 and 87. However, NASA shows in
http://ilrs.gsfc.nasa.gov/satellite_missions/list_of_satellites/g125_general.html
that satellites 71 and 76 (in western numbering) were withdrawn in 1995! Is
What feature does the ROM upgrade achieve?
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Maybe they have filled those slots again with new satellites. Maybe the
table is just plain wrong.
Rob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Geraldo Lino de Campos
Sent: 19 March 2012 18:53
To: time-nuts@febo.com
Subject:
Hi:
A way to find out is ask at:
http://mailman.satobs.org/mailman/listinfo/seesat-l
or check at
http://www.heavens-above.com/
Have Fun,
Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/Brooke4Congress.html
Rob Kimberley wrote:
Maybe they have filled those slots again
Hi Geraldo,
I have a GLONASS receiver running here in Seattle. Over the
days I see 24 different SV. Based on $GLGSA messages the
SV numbers appear to range from 65 to 88, inclusive. Here is
a plot showing how often the receiver uses each one of the SV
in the timing solution:
gary schrieb:
Just meditating out loud, if you were to go push pull with a ferrite
antenna AND you are winding it yourself, you could avoid the biasing
resistors by putting a center tap in the antenna itself, then tie that
center tap to an appropriate bias voltage. I haven't seen this done,
What makes me wonder: Why don't they adapt the DCF77 implementation? Is
it the not invented here syndrome?
At it looks like they never heard of Kasami sequences.
- Henry
Dennis Ferguson schrieb:
On 18 Mar, 2012, at 10:52 , John Seamons wrote:
They do talk about using the 11-bit Barker
Hi Henry:
There are millions of WWVB clocks in use and the new signal must be fully
compatible with them.
Have Fun,
Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/Brooke4Congress.html
ehydra wrote:
What makes me wonder: Why don't they adapt the DCF77 implementation?
Yes, his whole site is interesting stuff.
But the GPS was already mentioned here :-)
Even the Andrews variant.
- Henry
Tom Van Baak schrieb:
While researching Geraldo's GLONASS question I ran across
an amazing set of pages. It's the best documented homemade
GPS+GLONASS receiver project I've
Paul,
Thanks for that info. I'll keep an eye out for those models (cheap). I
guess my NI unit is too different to use that EPROM.
Joe Gray
W5JG
On Mon, Mar 19, 2012 at 12:42 PM, paul swed paulsw...@gmail.com wrote:
Hello to the group
Joe here are the exact model numbers that I have and do
Hm. I had a quick look at http://en.wikipedia.org/wiki/WWVB
I cannot see why it won't work with the DCF77 scheme. The carrier is
always on-air. Do I miss something? To low bandwidth of the transmitting
antenna?
Sorry, I didn't followed the thread in whole.
- Henry
Brooke Clarke schrieb:
Hi
I'm receiving a fairly strong Loran signal here in northern Indiana, and on my
IC-725 at that! I'll fire up the Austrons or the FS-700, can anyone steer me
toward what GRI I'm may be hearing?
Thanks;
Rich
W9ENG
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A couple of answers.
The difference between the pass through and full controllers is significant
in the ease of use for my 2 cents. Well worth the effort.
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.
I
Paul and Joe,
I took an interest in this the last time I saw it on the list. I was able
to use an NI GPIB-232CV-A with my computer's hyper terminal to communicate
with a couple of meters. It has prompted me to undertake an effort to learn
to program in VB 2010. I figure in about a year or two,
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
Hi all;
The FS-700 locked after about 20 minutes, it's still doing third cycle
search.(oops, fully locked now after another 10 minutes) Station received is
8970 X-ray, Seneca N.Y.
Receiver is reporting, Rcvr Gain 72db, noise Margin 22db.
I have 10 Mhz from Thunderbolt fed into the freq in and
100 Khz is s/9 in Cape May, NJ.
73,
Bill, WA2DVU
Cape May,NJ
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OOOPS - had wrong antenna connected - sig is 20/9 and is coming from the
only station that has been doing tests. It is located at the southern end of
Wildwood New Jersey, the old USCG engineering station. About 5 miles as the
crow flies from my qth.
73,
Bill
-Original Message-
From:
Yes indeed though further away I get signal of 38, fast lock in 10 minutes
and currently measuring local RB at 3.1 e 11 and on second unit 3.5 e 11.
If the signal stays on it will continue downward but takes numbers of hours
to do that. See in the morning
Paul
WB8TSL
Boston
On Mon, Mar 19, 2012
Not bad at all. But the passive interfaces are the ones that go for $5.
On Mon, Mar 19, 2012 at 8:24 PM, Joseph Gray jg...@zianet.com wrote:
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
DCF77's AM modulation is a much better fit for what they did, and a
much better design in general. All the useful phase modulation needs
to be carried by the carrier at full power. DCF77's AM modulation drops
the carrier power for only 100 ms or 200 ms at the beginning of the second,
which gives
It is also the case the DCF77's phase modulation probably isn't as good as
it could be if the goal is to find it in the noise since it only swings +/-
15 degrees rather than +/- 90. Its big advantage might be that it is high
speed, with lots of transitions, so you can probably measure phase
jlt...@att.net said:
I have a friend who is helping me with the effort. He has written some
programs to work with a 3458A and the ProLogix USB/GPIB adapter. I plan to
dissect the programs and modify them to suit my needs. Hopefully, it will
be a learning experience.
We should collect
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