User Manual

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GMRS-50V2!
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Antenna Basics
Your Mobile Radio Kit does not include an Antenna. It is VERY Important to NOT transmit without an
antenna or dummy load attached to the mobile radio. Doing so, will cause harm to the internal
components of your radio.
You will want to choose a suitable antenna for the bands you plan on transmitting and receiving on. If
you plan on transmitting on GMRS Channels you will want to ensure you have picked an antenna that
states it is capable of working on 462-467MHz. If an antenna is not properly tuned for the frequency you
transmit on – it can cause damage with the reflected power going back into the radio.
Pick an antenna with SWR of less than 1.5:1 to safely transmit. (See page 16 for tuning hints)
Ground Plane
Antennas require an appropriate ground plane to properly work. This can be a car body (not a fiberglass
car body, but some metal), or a set of ground radials for homebrewed antennas or commercially
designed antennas which do not require an external set of radials.