[amsat-bb] Antenna separation on crossboom

[Bob Hammond]

I'm putting the following antennas on an 8-foot fiberglass crossboom:

M2 2MCP8A, 143-148 MHz C{
Gulf Alpha 70cm 8x8 CP
WiMo Helix 23

I'm not sure how to calculate the proper spacing on the crossboom.  I
assume the 2m antenna should go on one end and the 70cm antenna on the
opposite end.  Can I mount the 23cm helical antenna very near the rotator
without harm since it has the solid reflector behind the helix?

Bob
W7OTJ
(was WL7CQX)