The Chameleon Porta mast extends up 25' and the ground tube is meant to be burried 28" in a hole with a gravel base and 12" in diameter then surrounded by concrete. It could be clamped to a fence post or attached to a building if you're handy. The pole can be removed and stored and a cap covers the tube in the ground. The instructions for it can still be downloaded from the Chameleon website. The Porta Mast has a 3/8" X 24 female thread at the top and a swivel where the carabeener is. My landed cost is $1K, I'm looking to get $650.00 for it and am open to offers. P.S It would be great for a VHF antenna or discone with an End fed half wave on the carabeener. 

Thanks for your interest

Claude Benoit VE6GTX

isphotoman@icloud.com