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I think it is more like 0.08Hz min I have reduced signal level and the blow up of the width, Thing is I cant write on those.:-) There is an anomaly repeated every time on steps 6,7 and 12 where the

On 20/05/2013 08:32, g3zjo wrote: > On 20/05/2013 07:56, Hans Summers wrote: >> I think that at 80m, some of what you observe is just features of the >> decode process on such a strong signal. Can you

Hi Hans The wide line is due to the resolution which I have pushed up, to make it clearer in fact. Yes there is some inevitable spread. Of course I will add some attenuation for you and see what I

Hi Eddie I think that at 80m, some of what you observe is just features of the decode process on such a strong signal. Can you put in some attenuation so that the line is thinner? I think the tone

Hans / Lads I have increased the resolution of my Grabber http://dl.dropboxusercontent.com/u/23312120/qrssgrabber.html for clearer understanding of the step tests. Currently on 3.5MHz band and the

Hi Hajo I see your point but but I see it totally differently. The board layout and silk screen is not WRONG and does not need alteration which would cause confusion. Everything is correct for the

Hello Hans, I was a little bit irritated about the various comments concerning future PCB boards. Your project is not a one night stand. It is here to stay and to get developed by you and the

Hi Hans, Regarding '*_New shop items requests:_*' May I suggest you also make the LPF Capacitors available separately for people who want to experiment with 'Multi-Band U2s' and want to make their

28MHz produced 3 step levels only. 7MHz Step 1,2 OK 3,4,5, are co channel 6,7,8,9,10 OK. Eddie

I think the ramp tests have been very revealing and I'm sure once the maths have been done, a fix will soon follow ;-) Other than that everything else works fine and I'm very pleased to have two of

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