A while back I found that my 160m Vertical ( inverted L ) at the top of the hill would tune up just fine on 6m and that extra 75' in elevation over the 6m dipole sure made a difference locally. I have doing FT8 remotely using "Team Viewer" and was working 160m. Thought I would tune to 6m to do a little MSK144 listening. I thought wouldn't it be great to see what other bands the 160m Antenna would tune up to and to my surprise the FT-450d ATU loaded it up on , 40m, 30m, 20m, 10m and of course 6m. On 20m it had a 2:1 VSWR without the tuner!
Now for the money shot .... how well would it work compared to the dedicated 1/4 on 20m.
A couple of things to note .... both antennas are 1/4 Wave with 8 tuned radials. The 160m antenna site on top of the hill 500' from the shack ( fed with LDF4 ). The 20m antenna is just up behind the house 150' ( fed with RG214 ) BUT its about 75' lower in elevation!
Well as it turns out I get better performance from the 160m antenna. The Red Dots are the 160m antenna and the Blue dot is the 20m antenna the Green Dots are both antennas received.
I am using 2 WSPRlites running 200mw one IMI and the other LDP.
Here are the simultaneous spots.....
and the #s....