[Antennas] 5 Band Quad's

[WX5L]

I would like to hear from anyone that has successfully tuned a 5 band quad,
in particular, that has compensated for the interaction that 12 meters has
on 10 and 17 meters on 15. I use a 5 band antenna switch with 1/4 wave 75
ohm matching transformers.

I nearly wore a hole in my roof trying to get those bands to cooperate but
finally gave up. On 12 meters with the driven loop open I had no trouble
with a properly tuned 10 meter loop but as soon as I hooked the transformer
up into the switch for 12 meters the SWR would rise to 3:1 on 10. Strange
thing is that this is an open on 17 meters at the antenna switch on the mast
but still played games with 10 meters.

Almost the same with 17 on 15 meters.

I'm relocating and will erect the quad from scratch so I'll be able to start
over but would like any input from anyone that has fought with this
scenerio.

Thanks,

Randy
WX5L