Strange JT65 Observation

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VK5STU
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Strange JT65 Observation

Post by VK5STU » Sat Jan 25, 2014 10:39 pm

I was working some JT65 this evening when I notice what looks like a transmission that is..well ....backwards :? Normally the signal 'faces' the opposite way as per the others in the photo below.

Can anyone explain what is going on here? I could not decode the signal at all, despite it being a reply to my CQ at one stage. Perhaps his dipole is installed the wrong way around.. :lol:
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jt65 strange.jpg
Stuart
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Re: Strange JT65 Observation

Post by VK4UH » Sat Jan 25, 2014 11:25 pm

Interesting image

I suspect one of you had their transceiver switched to the wrong sideband (USB-LSB swapped over)

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Re: Strange JT65 Observation

Post by VK5STU » Sun Jan 26, 2014 1:04 am

VK4UH wrote:I suspect one of you had their transceiver switched to the wrong sideband (USB-LSB swapped over)
Possibly. I was having no trouble with QSO's before and after this so I doubt it was at my end.
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Re: Strange JT65 Observation

Post by VK3DXE » Thu Jan 30, 2014 10:07 am

Appears very definitely somebody on the wrong sideband. Especially considering its on 40m, where most rigs will default to LSB, itsan easy mistake to make.
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Re: Strange JT65 Observation

Post by VK5STU » Thu Jan 30, 2014 1:32 pm

That explains it then. I am surprised I have not seen it more often, given how simple it is to get it wrong.

Thanks, I can sleep better at night now :)
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