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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

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

Ah - Ok thanks Stephen. I need to order a GPS then. Thanks for the quick response. 73s Tony

Do you have enough pins left over for a DS1307 I2C RTC module? They are $5-$10. Leigh/WA5ZNU

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,

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

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

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

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

Can't do yours Tony, I've run out of coffee jar lids ;) Philip G4JVF

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

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

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

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

Hi I have finished my Ultimate QRSS kit and it kind of works.. The display works fine I can set my call etc. But when the unit's switched on I get a lovely 7mz CW for 30sec or so and it dies away

Pictures of my test rig in Photos under G4JVF album Philip G4JVF

Tested my module yesterday for a few hours on 30 and it worked fine, FSKCW GPS locked. One of these

Hi Arv, Thanks for the post. Very useful contribution. We have discussed deriving the 1pps by taking the time from the arrival of NMEA sentences from the GPS, which in some cases is done every

Hello In addition to GPS, there are several other ways to obtain a 1 PPS clock signal. <http://tldp.org/HOWTO/Clock-4.html> <http://www.qsl.net/zl1bpu/SOFT/click.htm>

Guys, FWIW I used an EM-406A for testing the GPS functionality. See https://www.sparkfun.com/products/465 for details. They are widely available from Sparkfun and their distributors. In the UK they