The polarity of the signal refers to the design of the transmitter. Each transmitter mounted on a hill or a building has as one of its design features a method of transmitting signal. The planners decide what the polarity will be. Vertical (antenna mounted on its side) or Horizontal (antenna mounted on the mast in the same plane as the ground.
To experience best caravan antenna you must mount it to match the signal pattern being sent by the transmitter. Failure to do this will result in a major loss of signal.
Not a lot! You could stick to major centres where the signal being sent from the transmitter is powerful. So powerful it will often overcome the problem that your antenna is not mounted for good reliable results. The other thing you can do is carry a second antenna which mounts on the side of the caravan or draw bar. When these locations become a problem get your explorer caravan antenna out. The vertically transmitted signals are often associated with low output transmitters where it is imperative that the antenna is matched for the best results.
Old cables can be very deceptive as they may appear to be fine and yet drop the signal strength level very significantly – even up to half your signal is some circumstances. . If you have any doubt as to the condition of your cables then we highly recommend changing them. They are not expensive and can save lots of time and upset..
Our answer to this one is generally a big ‘NO’. The antenna was not designed to be subjected to wind speeds of up to a 100 kilometres per hour for extended periods of time. The C3 , C4/C4A antenna in particular with its telescopic VHF elements would not be suitable for these wind speeds. All antennas are designed for wind gust loads, of course, but that is different from a prolonged exposure that driving at high speed would cause.
The only exception to this is when the antenna can be lowered into the lee of the caravan bulk itself to be protected from the airflow. This has been done successfully. Such a case is when the mount is on the back of the motor home or van and the antenna is lowered down behind the caravan to be protected by the caravan itself.
Also when the antenna is lowered between the rear of the car and the front of the van and turned sideways so that the airflow hits the ends of the telescopic elements the unit can be protected from the airflow. In short while we cannot recommend this as standard practice it has been done successfully with common sense precautions and an installation that allows the antenna to be lowered into an area of protection.
While driving there can also be other