This is a copy of the installation documents for the RRO Bumper/Winch mount. This may help you decide whether to buy or not.
On Glass Antenna connector failure
November 3, 2018
Normal Phone Lines and ADSL almost gone
July 9, 2018
Threat of Injurious Falsehood
June 27, 2018
ADSL phasing out
December 12, 2017
Aerial Photography
November 24, 2017