Comparing overnight reception

Last night I decided to run a little experiment with both antennas receiving SSTV on 20m.

I thought it'd be an interesting test. The vertical generally doesn't perform quite so well based on my testing - usually on 40m compared to the dipole. It's never quite as strong. 

I set both radios to 14.230 USB and left them. 

The results overnight we actually quite interesting.

The dipole:

Not much joy there. One of those nights I guess.

Then I checked the PC running the vertical:

Well now, that's interesting. There were about half a dozen more images but I couldn't see an image through the noise. 

Finally, some proof that the vertical can hear some things that the dipole doesn't. 

I do wonder if my dipole might have picked it up had it had an east/west orientation rather than a north/south, but being in sardine canned sized suburbia, that isn't much of an option.

I could make it diagonal I guess, but I doubt that the XYL will be happy about it. If I centered it between the poles, the feedline would be in prime position for the dog to be making a fair old mess of it. Currently it drops down into a gated off section down the side of the house away from the dog, the kids and the XYL. 

At some point in the near future I need to put a decent sized garden shed in the back corner opposite the pole the dipole is on.  I want to set it up with something of an undercover annex on the side to put my BBQ smoker under so it remains away from the house. Given I tend to start the smoker in the early hours, I need to install some light, it would make sense to put a couple of solar panels on the shed feeding a deep cycle battery. Seems like a good power source for a radio.