Total posts : 45366
How about this…
2) Radiator and coax must be limited to 10 ft. (no ground restrictions)…
6) Transmitter/antenna height above ground should not exceed 90ft
If the radiating length is to have a 10 foot limit, it could NOT be mounted to a height limit of 90 feet with “no ground restrictions.”
The conducting path from the tx chassis to the r-f ground plane at/in the surface of the earth is a radiating structure of the antenna. This means that the total radiating length you propose in item 6 would exceed the 10 foot limit you propose in item 2.