I just recently replaced my old diplexed TV antennas with a new Fracarro LP345F (added bonus - smaller bird footprint).
Had a look at the antenna electrical feed.
The coax from the rear socket goes all the way through the bottom boom to the pointy end (technical term) where the coax outer connects to the bottom boom front, and the coax inner goes to the top boom front. Both electrical connections are made by internal wedges in the the front plastic moulding with two separate stainless steel springs holding the inner and outer to the inside of the booms.
I sought to improve this by cable tying the coax outer to the inside of the bottom, and soldering a radio type solder lug to the coax inner, and fixing with an M4 screw.
Coated with Electrolube SCO silicon grease.
I still used the original front black plastic moulding "plug", after chewing out the internal "wedges".
As the antenna is rear mounted, I used 500mm of UPVC tube as a 45 degree support, from mast to bottom boom.
These antennas and their clones, are now very common in metro areas.
The small bird footprint aspect swayed my thinking from a VHF only antenna.
mike
Fracarro LP345F.jpgP1150695lo.jpgP1150702lo.jpg
Had a look at the antenna electrical feed.
The coax from the rear socket goes all the way through the bottom boom to the pointy end (technical term) where the coax outer connects to the bottom boom front, and the coax inner goes to the top boom front. Both electrical connections are made by internal wedges in the the front plastic moulding with two separate stainless steel springs holding the inner and outer to the inside of the booms.
I sought to improve this by cable tying the coax outer to the inside of the bottom, and soldering a radio type solder lug to the coax inner, and fixing with an M4 screw.
Coated with Electrolube SCO silicon grease.
I still used the original front black plastic moulding "plug", after chewing out the internal "wedges".
As the antenna is rear mounted, I used 500mm of UPVC tube as a 45 degree support, from mast to bottom boom.
These antennas and their clones, are now very common in metro areas.
The small bird footprint aspect swayed my thinking from a VHF only antenna.
mike
Fracarro LP345F.jpgP1150695lo.jpgP1150702lo.jpg
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