Two way radio Basics 

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Which is better UHF or VHF? UHF offers the best coverage and penetration inside buildings or outdoors. VHF is fine in flat open areas or around wood structures.

How much power do I need? Power is a major factor in achieving the range and coverage in a particular structure as well as providing a clear, crisp signal that is easy to understand. Coverage is improved when power is increased.

How many Channels do I need? One channel per work group is typical. Use multi-channels when separating multiple workgroups. Examples: Managers, shipping, manufacturing, maintenance, security, general and sub contractors, different departments such as stock, customer service, etc.

Do current Motorola two way radios talk to older models and other brands? Yes, as long as the frequencies and codes match.

How many two-way radios can be used together? There is not limit.

How rugged are Motorola two-way radios? These radios are built rugged for business and meet Motorola’s accelerated life testing including a 5 foot drop to concrete on all sides.

Can they be used with repeaters and base stations? CLP, RDU 4 Watt, RDV 5 Watt and AX models are dealer programmable to work with repeaters and base stations. See page 8 for Range Extender/Repeater.

Inexpensive FRS/GMRS Walkie-Talkies
While recreational models are inexpensive, their cost to use is 2 – 4 times greater than business models over time. Units and batteries are replaced often. GMRS requires FCC license just as business models, but are not legal to businesses, violators subject to fines.

Range & Coverage
Most business users need to communicate “on-site” in and around their structures. Coverage of their facility with a clear, intelligible signal is the primary concern. Wide area coverage of several miles may require use of a “repeater”. HP Series radios are compatible with repeaters.

Range is determined by several factors:

UHF provides the best coverage indoors and out, especially in steel and concrete structures and large industrial or multi-story buildings. A 2 watt UHF will provide better coverage inside industrial buildings than a 5 watt VHF.

VHF is good for outdoor “line of sight” applications and inside wood structures

Power More power provides greater coverage and penetration

Obstructions Structures, metal, steel and concrete reduce range and coverage