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Hi all, Happy to report that I built my U2 kit last week (aside from fully mounting the display in the box, it is complete). You can see my build

Hi Guys, Just in case anyone gets confused, there is no such thing as a Reyax UP501 GPS module! Reyax are simply one of several Far Eastern sellers on ebay. The GPS module being talked about was

Nice one Hans and all understood. Good thinking ! 73 de Andy

Hi Andy On key-up, the keying transistor Q1 is switched off, and the C1 capacitor is also supposed to mop up any RF leakage too. However some RF *still* can leak through to the antenna! It's many

Hi David That is why I liked the Trimble, integrated antenna, and also an auto switched SMA antenna socket for use with an external (waterproof antenna). Otherwise you could use a separate

I suppose there is only one way to find out. Plonk an LED On the output via a 2k2 and see what happens ;-) On my UP501 module I intended to have an LED connected all the time but it loaded it

Not quite sure I understand that one Hans. Do we Hell users have to apply for an NoV ? ;-) 73 de Andy

All Please note, U2 kits are still pending arrival of components here. So if you make an order which includes a U2, I hope it is Ok for you to wait for it all to be shipped together. 73 Hans G0UPL

Eddie, Now you've done it! Two showers and a train journey and Hans will have worked it out. 73 Keith, G6NHU

I second FTD,s remarks on the reyax UP501 modules... Faultless.. Plug n play ;-) de Dean G7EOB andyfoad@...> wrote:

I tried a pulse-stretcher using a 555 [found on the net, not my design] with both a Trimble unit and a Sure development board. Neither of them had any success ;-( OTOH, the 555 isn't the best chip to

It's worked 100% on ALL versions, including all versions so far on the U1 and the U2. It just works.... 73 de Andy

Hi Eddie, Andy Thanks for the thoughts on this. This is the next challenge - to make the GPS Interface work with both very short, and very long pulses. I don't know if I mentioned it before, But I

Hi Eddie No, I didn't put it into the spare bytes! I removed the Hell modes from v2.02k to make space. Hell takes a lot of space in the memory because it's a huge look-up table for all the character

Andy Did the Rayax work on v2.01 The 1pps pulse width does seem to be tied up with the claimed accuracy for for timing / frequency purposes. Hans obviously knows how to handle long and short

Thanks Eddie & Andy I'm all blushing now... 73 Hans andyfoad@...> wrote:

Yesterday I thought I'd try to do a bit of research regarding the GPS modules used by kit owners. Now I'm not sure if I've got all the model numbers correct but from what I've seen so far, all the

This is the upgrade I'm most excited about! Once the Martello Tower Group have received their 2.02k version, we will be installing it into G0PKT and running both WSPR and QRSS on 30m and setting up a

Seconded ! The improvements are OUTSTANDING. Hans has done absolutely brilliant work on this version, and it stands head and shoulder above anything I've seen so far. I've already ordered my bunch

Hi All I recommend v2.02a be rapidly installed in all v2.01 U2's. It really is good. The improvements in spectral purity are outstanding and some of the operating convenience improvements well worth