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IW2DZX WSPR
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Hans Summers
All Amazingly, Aldo IW2DZX continues to operate 10m WSPR successfully with the Ultimate2 kit, see
Aldo tells me that he is using 3x BS170 transistors in the PA, operated at 5V. Antenna is a half-wave end fed.? With all the other observations on 10m operation, it seems amazing to me that Aldo is having success. Weird!
73 Hans G0UPL |
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Andy Cutland
My U2 kit was also very happy on 10m wspr. I moved it to 20m now and all is well there too.
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73's Andy Gj7rwt :------------------------------ On Tue, May 21, 2013 2:02 PM PDT Hans Summers wrote:
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"andyfoad@..."
Oh no - more confusion ;-)
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73 de Andy --- In QRPLabs@..., Hans Summers <hans.summers@...> wrote:
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g3zjo
On 21/05/2013 23:02, Andy Cutland wrote:
My U2 kit was also very happy on 10m wspr. I moved it to 20m now and all is well there too.As the other Andy says, more confusion. Although I remember you having your signal on 28MHz WSPR on your Grabber and the tone spacing was most strange, stretched at the bottom. Probably WSPR can handle this but not the skinny mode that mine produces. 73 Eddie G3ZJO |
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g3zjo
¿ªÔÆÌåÓýOn 21/05/2013 22:02, Hans Summers wrote:? Yes Hans Its a funny arrhythmic problem when it variable. I have done some more investigations I will contact direct. 73 Eddie G3ZJO |
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Andy Cutland
Experimenting with 15m today, I did have the start up problem (power and swr going full scale) but a couple of power on/off cycles cleared that up and I'm now getting some spots. 73's Andy GJ7RWT From: g3zjo To: QRPLabs@... Sent: Wednesday, May 22, 2013 12:15 PM Subject: Re: [QRPLabs] IW2DZX WSPR
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On 21/05/2013 23:02, Andy Cutland wrote:
> My U2 kit was also very happy on 10m wspr. I moved it to 20m now and > all is well there too. As the other Andy says, more confusion. Although I remember you having your signal on 28MHz WSPR on your Grabber and the tone spacing was most strange, stretched at the bottom. Probably WSPR can handle this but not 73 Eddie G3ZJO |
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"andyfoad@..."
Well I know for a fact that I did have my own 28Mhz WSPR decoding
at one point on whatever 10m random freq I chose for the test. Then I moved to another, and it all went skew whiff. I have no doubt that there is a problem which manifests itself depending upon the actual chosen frequency of operation, and it only takles a matter of a few kilohertz to send it into different set of circumstances. As Hans said, and I agree, there's got to be a mathmatical relationship to this error, which shouild easily be sorted with the software code. As I was taught many years ago as a rather green student at electronics, that all faults are simple. It's just finding them that is the hard bit. Never true'er ! ;-) 73 all de Andy |
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"andyfoad@..."
Also I forgot to add something regarding my original spectrogram
tests. Whilst watching the signal when receiving only the two bit streams, the same could be heard on the receiver. It was just like the U2 was doing an FSK diddle test and switching one to the other. It could be seen AND heard, thus eliminating any spectrogram resolution problems. Kind regards, Andy |
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