Here is a way to install a antenna Higher.
http://www.ronard.com/tree_adjust.html.
Here is a amplifier Booster that is high gain and Ultra Low Noise.
All electric/electronic circuits generate noise , noise has a masking effect on the Tv signal.
Reducing noise means more usable signal.
http://www.kitztech.com.
Use the , KT-200-COAX TV Antenna Booster Remote Power-Coax Fed.
This allows the flexibility to install the Booster Unit closer to the antenna or further away from the antenna.
I recommend use a Channel Master CM4228HD antenna in the tree.
The CM4228HD is high gain on UHF and is also designed to receive VHF.
I corrected the CM model number to CM4228HD.
_________________________
The branches of the - tree/s - must be cut away in a manner that branches can not whip around and beat on the antenna.
And the branches of the tree/s must be cut away in a manner that opens up a big clear path to the transmitters.
If possible the Antenna can installed in a tree that has no other close trees obstructing the view of the transmitters.
The HD7084P will not last long in a tree.