116 General Information
Transmitting Distance
Several conditions determine the distance that your radio will transmit a clear data/voice communication. The following list describes many conditions and their typical affect on your radio's transmitting distance.
Condition
Description
Effect
radio's power | more power | longer distance |
radio's frequency | lower frequency (VHF compared to UHF) | longer distance |
radio's tuning | properly tuned radio (on frequency, more power) | longer distance |
stormy weather | adverse atmospheric conditions | shorter distance |
at sea | better ground plane (clearer | longer distance |
city | large/tall buildings (interference problems) | shorter distance |
in a building | structural boundaries (interference problems) | shorter distance |
on a tall building's roof | less interference (clearer | longer distance |
in a subway | below ground level (interference problems) | shorter distance |
on top of a hill | less interference (clear | longer distance |
intervening hills | more interference (no | shorter distance |
inside a vehicle | metal structure (interference problems) | shorter distance |
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