I am using a multi-switch to change radios and antennas. One of those MFJ
1700Bs. I get different SWR readings depending upon where I place the
bridge in the tangle of wires that go into and out of the switch. If I
take the switch out of the equation I get very low SWR. With it in I get
2.5:1.

All of the coax has a common ground so the OCF windom also shares a common
ground with the coax going up to the beam and all the radios. All grounds
are starred at the back of the antenna tuner and run to earth.
I am wondering - does the common connection mean the coax shield to the beam
is becoming a part of the OCF windom antenna and vice-versa?

Would it therefore be adviseable to put current chokes on all the ins and
outs of the switch? Other comments?

k4ia
Buck
Fredericksburg, VA