User Manual

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15
Magnetically Mounted Antennas:
These antennas must be grounded to a metal surface, such as a vehicle body. Magnetic base antennas
do not properly operate unless they are fully magnetically grounded first. This is usually accomplished
via the metal car body. Magnetic Antennas do NOT function properly on Plastic or fiberglass bodies.
NMO or PL-259 Base Antennas:
These antennas will normally require a base or mobile hardware kit. These kits are grounded either
through hardware or clamp inserts on vehicles, magnetically mounted, or available as stationary base
hardware kits. Some antennas may include a base station ground plane or ground radial kit.
CAUTION: When installing base antennas, stay clear of ALL power lines- they can kill you if you come
in contact with them. Keep a minimum distance of 10 feet with the antenna and yourself from the
lines.
Antenna Requirements
Antenna SWR Rating: 1.5:1 or less (on the radio frequencies in use.)
Antenna Impedance: 50 ohms (use 50 ohm rated coax and coax connectors)
Antenna Grounding: Ensure the antenna is mounted with a ground plane
Visually Inspect Coax/Connectors for any Slits or Damage – moisture should not be allowed to penetrate
fittings or your coax