Re: 1pps signal level requirements on Ultimate QRSS Beacon
Hi Guys,
Actually I think you could use both the NMEA and 1PPS outputs for more than one beacon, but you will need some sort of distribution system. It is quite usual in scientific applications to
By
"Stephen" <squirrox@...>
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#393
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Re: 1pps signal level requirements on Ultimate QRSS Beacon
Ahhhhh right!
I was looking at the EM-406 which doesn't seem to have a 1PPS but
the EM-406A does...
Can't share the 1PPS because the two rigs will be a long way
from each other (good idea
By
"Philip" <pcteee@...>
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#392
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Re: 1pps signal level requirements on Ultimate QRSS Beacon
Yes. It's the one that Stephen used and it works at 5volts so it will be
easy to sort out with the kit.
Specs here, but I didn't buy it from sparkfun. Mine was only ?23 delivered
with a header cable
By
Tony Volpe <tony.volpe.1951@...>
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#391
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Re: 1pps signal level requirements on Ultimate QRSS Beacon
Looks a bargain Tony...
Has it got 1 PPS ouput on it, can't see it on the header?
Need another GPS module here for my second QRSS kit (40 meters) that
arrived this morning (thanks Steve)
Philip
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"Philip" <pcteee@...>
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#390
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Re: 1pps signal level requirements on Ultimate QRSS Beacon
Thanks for the detailed response Hans.
I have actually just this minute ordered the GlobalSat EM-406 A gps
module that Stephen has used. I got a great deal on it ?23 with a
header plug and postage.
By
Tony Volpe <tony.volpe.1951@...>
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#389
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My grabber is offline
Hi there
My shack is under construction, so my grabber is offline for an unknown length of time
--
73,
Pierre-Philippe
F4MZI
By
Pierre-Philippe F4MZI <gnubox@...>
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#388
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Re: 1pps signal level requirements on Ultimate QRSS Beacon
Hi Tony
You can use a different 1pps source yes. "Use GPS" must be ON, yes, in
order to take account of the 1pps connection.
If you use a 1pps signal from a non-GPS, the transmission frequency
By
Hans Summers <hans.summers@...>
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#387
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Re: 1pps signal level requirements on Ultimate QRSS Beacon
I looked at units like that one Leigh, but I don't see how they can be
interfaced to the MCU without reprograming it,whivhnis way beyond my
experience. Thanks for the suggestion though. I have a gps
By
Tony Volpe <tony.volpe.1951@...>
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#386
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Re: 1pps signal level requirements on Ultimate QRSS Beacon
Ah - Ok thanks Stephen.
I need to order a GPS then.
Thanks for the quick response.
73s
Tony
By
Tony Volpe <tony.volpe.1951@...>
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#385
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Re: 1pps signal level requirements on Ultimate QRSS Beacon
Do you have enough pins left over for a DS1307 I2C RTC module? They are
$5-$10.
Leigh/WA5ZNU
By
Leigh L Klotz Jr WA5ZNU <leigh@...>
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#384
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Re: 1pps signal level requirements on Ultimate QRSS Beacon
Hi Tony,
The way to find out if the 1PPS is working is to select TEST mode and
wait a little time. You should see a frequency counter display which
uses the 1pps as a timebase.
However, with GPS ON,
By
Stephen Farthing <squirrox@...>
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#383
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1pps signal level requirements on Ultimate QRSS Beacon
I've been experimenting with other means of inputting a clock signal to the MCU on the Ultimate QRSS Beacon without using GPS. I have a couple of questions for Hans or Stephen, if they have time.
If
By
"TONY_VOLPE" <tony.volpe.1951@...>
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#382
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Re: Ultimate QRSS kit firmware update
I'm also on V. 1.00, it's built and just needs to be boxed and GPS added as I have found the standard internal clock loses about 2 seconds every 12 hours so for WSPR it will benefit from the addition
By
"G1IVG" <colinlowe_home@...>
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#381
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Re: GPS recommendations
LOL - only joking. :)
I've been messing about with a 'poor man's' time reference, just for a
lark. I took an old cheapo quartz analogue clock apart and combined the
coil outputs to make a 1 htz
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Tony Volpe <tony.volpe.1951@...>
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#380
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Delays to orders for Ultimate Beacons
Guys,
I have been holding back on shipping orders because of the firmware issues mentioned in previous posts. I'll be spending the next few days sending them out now that we have squashed the known
By
"Stephen" <squirrox@...>
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#379
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Re: GPS recommendations
Can't do yours Tony, I've run out of coffee jar lids ;)
Philip G4JVF
By
"Philip" <pcteee@...>
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#378
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Re: Ultimate QRSS kit firmware update
Great news guys thank you...
I've ordered one, mine has version 1.00 showing on the display..
I put ?3 on the Paypal amount to cover the postage as I still think
we all have a real bargain here
By
"Philip" <pcteee@...>
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#377
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Ultimate QRSS kit firmware update
Hello all Ultimate QRSS kit builders,
As many of you know, unfortunately a few bugs crept into the original
firmware version on the chip. Steve G0XAR and Hans G0UPL were mortified
that these bugs
By
Hans Summers <hans.summers@...>
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#376
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Re: GPS recommendations
Oh htat looks the business Philip. Very nicely done. Mine is a total 'lash up' by comparison. You really thought about how it would be boxed before you started making that. Next time I am going to
By
"TONY_VOLPE" <tony.volpe.1951@...>
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#375
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Re: Grabber set-up 7mhz
Dick
Thanks for the info I am in a position in 2 weeks time to really get stuck in and have go with the PI as a grabber.
Andy
2E0CLY
By
"skipratpack" <andymdpage@...>
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#374
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