Mike Beauchamp wrote:
"Can anyone tell me what the proper formula for finding a odd multiple
in inches would be?"

Wavelength in meters is 300 divided by frequency in MHz. A meter is
39.37 inches. Reduce the antenna length by about 5% for "end effect". A
balanced antenna is often 1/2-wavelength. An unbalanced antenna is often
1/4-wavelength. Antennas are usually nnear self-resonant lengths to
avoid reactive opposition to antenna current.

Search on VHF antenna lengths. For an odd frequency multiple, divide the
fundamental frequency length by the order of the multiple. For 3X the
frequency, the length will be approximately 1/3 the fundamental length.

Always cut the calculated lengths a little long. It`s easier to trim to
length than to augment a too short antenna in most cases.

Best regards, Richard Harrison, KB5WZI