Re: GPS behaviour very inconsistent
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Good news Barry. Delighted your new GPS works with the new kit.?
However, there is nothing wrong with the EM-406A. I've had one working with the UQRSS1 for about ten months, day in day out 24/7. It is working now with all GPS functions working correctly as designed. However, it behaves just like yours did on the UQ2.
The issue with the UQRSS2 is being caused by some different way the software in this kit works. It's a shame really, but I won't be spending another ?17 to replace a GPS that is not faulty.
Best regards
Tony G0BZB
On 31 May 2013 12:18, Barry Chambers <b.chambers@...> wrote:
Afternoon All
For several weeks, I've been struggling to get my U2 kit working with a
EM-406A GPS module. The problem seems to be with the 1pps signal. as the
NEMA data is read correctly.
Today, I got through the post a Fastrax (Reyax) ?UP501 GPS module (from
Taiwan via E-Bay, ?17, about 10 days delivery time). Hans lists this
module on the U2 kit web pages. It requires a 3.3v supply and the modem
setting is 09600,10,1,8. Hey presto! ?It works! I found that the "Inv
GPS" setting needs to be "On". The clock keeps perfect time (as compared
against my wireless clock), the Locator is set correctly and the DDS
125MHz oscillator frequency is corrected (mine is now slightly lower
than 125 MHz). At present I have "Start" set at 02 and "Frame" at 04 and
the U2 is on soak test on 20m WSPR with a "loop" made from two pieces of
wire about 15cm long, joined by a 47R resistor.
73
Barry, G8AGN
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