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The Trimble is stated as PPS < ???25 ns @ 50% and werks beaufull. Eddie

Thanks for that Hans, yes I was referring to the shift and thanks for the idea with the extra transistors. 73 Colin

Hans / Lads My Grabber http://dl.dropboxusercontent.com/u/23312120/qrssgrabber.html is showing the Step Test on 28MHz on the frequency indicated. Three levels only are succeeding. Note, every

Hello Hans, Many thanks for the in depth summary. I have started building my U2 kit but maybe a week or so before testing etc. Thank you for producing a remarkable kit and look forward to

G3ZJO back on parade, some interesting goings on here, I will do the Ramp Test out of interest but it seems conclusive. Also the results seem so variable depending on frequency, no wonder us poor old

Hi Colin The Arduino QRSS shield output frequency is controlled by the crystal on the shield board. To change the frequency you have to adjust the trimmer capacitor. if you are referring to the

Hi Hans, I have fried one BS170 in the UQRSS kit #1 (which by the way is still working well with V1.3) before I noticed my mistake, I now am using those sockets I cant remember what they are called

Hi Colin Thanks for the update, you are the first person to report having completed the construction of the Arduino kit. Although you are also the only one to have yet received it, as there is a gap

Hi Andy Yes yes, I saw the file - I get a notification as soon as you uploaded and happen to be online to see it immediately. I think things start to add make sense to me now. With your observations,

Hi to all members of the group, I have just finished the QRSS Arduino shield for 40m, all went well the instruction manual was a usual excellent and the PBC well made, I am only able to get 50 mW

Hi Andy, Eddie et al I dug around in the code a bit, to try to understand what is happening, in the context of the various observations and evidence you have collected. I think that I can see how the

Hi Hans Done the test now on 10Mhz. Although it seems to work on WSPR n problems,I only see 6 tones ramping up. Did a test on 80m. Now we have all 12 tones ;-) Results in the group test

All My email box is full of millions of emails and so I thought, to clarify all my and your thinking, one big post should list it all out. Summarise where we are with it all. If I am missing

Hi Andy Thanks for doing the experiments. But can you confirm pls - 1) On 10MHz (or some frequency where we think it is working Ok), you should see a ramp which goes from 0Hz shift to 5.5Hz shift,

I've done the ramp test. Results are here: http://groups.yahoo.com/group/QRPLabs/files/ANDY%20FTD%20FAULT%20TESTS/ It only confirms my previous findings :-( 1) At one chosen frequency in 28Mhz I

On 19/05/2013 00:58, Hans Summers wrote: > Many thanks for all your efforts in helping to collect evidence to track down this problem. I know it might be a little frustrating but thanks for

I have my grabber monitoring my 28mhz wspr output. www.qsl.net/gj7rwt/gj7rwthomepage.html At 28mhz I seem to have 9hz shift. 73's de Andy GJ7RWT ------------------------------

Hi Eddie Many thanks for all your efforts in helping to collect evidence to track down this problem. I know it might be a little frustrating but thanks for persisting! I suspect that there might be

Hi Andy You can get a pure unmodulated carrier by setting FSK (Hz) to 0 and using FSKCW mode with any message. Ok, I will see if there is space! 73 Hans G0UPL

Further update on this problem. G0FTD seems to have intermittent thin WSPR data trace and no de-codes on 28MHz but has seen a decode or 2 of his own signal after fiddling. My unit is absolutely