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Examples
of various HF (high
frequency) base radios. These radios can provide direct,
long-distance and even inter-continental communications.
These radio utilize very high power and generally large
antennas, often mounted on towers. In NYC, antennas are
commonly mounted on tall structures such as the Empire
State Building, Rockefeller Center, etc.
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| Examples
of a few different models of mobile handy-talkies (HTs).
These radios are fully programmable and can provide direct
(simplex) communications as well as repeater assisted communications.
These battery powered radios come in VHF, UHF and dual-band
models and provide 1-5 watts of power. |
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| Various
Motorola brand radio equipment is also used by emergency
amateur radio communicators. These
radios come in VHF or UHF models. These radios provide 1-5
watts of power. These rugged commercial public safety radios
can provide direct (simplex) communications as well as repeater
assisted communications. |
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| A
selection of several different mobile radios. Radios such
as these are mounted in vehicles or mounted in mobile portable
racks. These radios provide high power point-to-point (simplex)
communications as well as repeater assisted communications.
These radios come in VHF, UHF and HF modes. These radios
generally provide anywhere from 25-75 watts of power. |
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| This
is an example of how mobile amateur radios are mouted in
vehicles. These radios provide high power point-to-point
(simplex) communications as well as repeater assisted communications. |
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power mobile radios are also mounted in portable strong
and waterproof boxes for rapid deployment to the field.
These radios can work off of an internal (12VDC) battery
or 110AC. The kit can also be powered directly from a car,
boat or truck battery if necessary. (The green box belongs
to KH70 in Hawaii and the orange box was built by N6USP
in Florida.) |
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| Various
types of antennas used for base operations of amateur radios.
An antenna is an electrical device which converts electric
currents into radio waves, and vice versa. An antenna can
be used for both transmitting and receiving. |
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above are several different styles of antennas used for
mobile applications. Some antennas are mounted permanently
and some are attached with a strong magnet for temporary
use. While some single antennas work only with VHF or UHF,
others are "dual-band" and have the ability to
work with both bands. |
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This
page was designed by NYC-ARECS to educate the lay public
and those unfamiliar the type of radio communication equipment
that is commonly used by amateur (ham) radio operators
in the course of their daily activities and during emergency
situations.
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