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I would use two cell clamps directly attached to the "blocks" along the block's top edge to get it a bit higher (the TRH inlet still will be lower than the sonic).
Azimuth is to have the sonic booms at the same 160 degrees (almost pointing to the south) as those on the tower array. This means that the trailer will be either pointing (approximately) west or east.
Sonic booms will point (approximately) south (160 degrees – the same as the tower array), TRH booms will point approximately northeast (40 degrees). Because the TRH boom can't poke into the bed of the trailer, this sets the trailer orientation as the tongue needs to point approximately to the west (250 degrees).
We plan to use the omni Ubiquiti on this tower. We have a mount that will work with the special top-of-section clamps. Alternately, we could attach (u-bolt or hose clamp) to the top Rohn section. I actually think the reception may be better lower down due to the elevation angle response of the antenna – perhaps 11m or 19m?
Possible tt locations are red dots. I prefer the middle two, but driving access may be problematic.
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