HAM Radio: An Interesting Hobby,Ham radio,
formally referred to as amateur radio, is a hobby whereby operators,
also known as hams, communicate with one another via ham radio
equipment. The biggest benefit of ham radio is that natural disasters
do not affect the ability of ham operators to communicate. For
instance, after Hurricane Katrina struck New Orleans, cell phones and
landlines were inoperable due to the damage inflicted upon equipment
and cell towers. Ham radio equipment, which uses radio frequency, was
unaffected and ham operators often provide emergency information to
each other during inclement weather. Ham radio operators can also
communicate practically worldwide with other operators. The designation
amateur radio only denotes the fact that operators receive no
compensation for their broadcasting as opposed to commercial stations
which receive remuneration.
To legally operate a ham radio, the operator must obtain a license.
Historically the United States offered 6 levels of licensing for ham
operators but on April 15, 2000, the FCC implemented a restructuring
program that eliminated three of the classes. Although the
restructuring eliminated three classes of licensing because it deemed
them redundant, people holding active licenses in those classes
retained their licenses and the ability to renew them.
Under the new rules, to receive a Technician Class license an applicant
must complete and pass a multiple choice examination. A Technician
Class licensee can operate on all amateur bands above 30 MHz and on a
limited few high-frequency bands. In addition to meeting the
requirements for the Technician Class, an applicant for the General
Class must complete an additional General exam. The highest class of
licensing is the Amateur Extra Class that grants the operator the
privilege of operating on all US amateur bands.
Ham operators communicate via radio stations that can be modified for
their personal use. There are several types of stations used by ham
operators including fixed, mobile, and portable. Fixed stations are set
up inside a permanent structure and usually are equipped with a
transceiver, combination of transmitter and receiver, and an antenna.
Mobile stations are installed inside a vehicle and use ham radio
equipment including a transceiver, microphone, and an omnidirectional
antenna. Portable stations tend to be more compact, travel-friendly,
and generator powered. Some ham radio operators use handheld stations.
The handheld stations have a transceiver, battery, and antenna all in
one unit but they don’t pack much power. They have very short range
transmitters that are only adequate for local use and only have voice
communication capabilities.
Some ham operators choose to build their own stations by buying and
modifying transmitters, receivers, microphones, and antennas. Ham radio
parts can be purchased from the internet or local supply stores. Some
websites also run ham radio auctions where new and used equipment can
be bought cheaply. Major manufacturers of ham radio equipment include
Kenwood and Collins.
Ham operators are assigned a call sign from their local governing
authority. This call signal must be used during any transmission. Ham
radio call signs usually consist of up to 3 characters and a number.
Generally the numerical prefix designates the geographical location of
the operator.
Ham radio opertig has become a popular hobby with almost 6 million
worldwide participants. Local clubs help interested operators obtain a
license and can make ham radio equipment recommendations. WHile it is
an interesting hobby, ham radio operators often provide valuable
information during emergency situations.