Motorola TALKABOUT T5500 Podręcznik komunikacji - Strona 15
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Push-to-talk (PTT): The button on the side of a HT. When held in, the radio transmits
and when released, it receives.
Squelch: A feature which prevents the hissing sound normally made by a radio which is
not receiving a radio signal. The squelch level must be adjusted slowly up until it just
turns off the annoying hissing, but not much higher or weak transmitted signals that you
may want to hear can not "break" through and be heard.
TEN-CODES: Ten codes are not to be used. These are codes that start with the number
ten and then a second number like (10-4 for"understood", what's your 10-20? for
"location"). In the past they were used in police and fire work but are actively being
phased out because their meaning was often unclear. That is even more of a problem in
CERT work, so it is best to use plain English.
TRANSCEIVER: a radio capable of transmitting and receiving contained in the same
case. FRS/GMRS HTs are all transceivers.
TRAFFIC: is a message or messages containing information that needs to be passed on
to either another station for delivery to someone at that station or relayed on by radio or
other means to a further destination (not automobile congestion).
TWO-WAY RADIOS: radios which transmit and receive to another similar radio
allowing the talk to and hear the other. FRS/GMRS HTs are two-way radios.
UHF (ultra high frequency): a portion of radio frequencies used by FRS/GMRS radios.
They will not bounce off the ionosphere ("skip" like CB,s can) or penetrate mountains or
large man-made structures. They normally can only travel by line-of-sight or very
slightly beyond.
VOLT: A measurement of electrical "push" or "force". Batteries are rated in volts and
most alkaline batteries (AA and AAA) are 1.5 volts.
WATTS: a measure of electrical power. The higher the watts your FRS/GMRS radio
gives off, the further it can transmit, but wattage is not nearly as important as having a
line-of-sight path.
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For disaster communication in the ASNC area, tune to FRS Channel 2 (Alternate: Ch 12)
Ham Radio Operators should also tune to Battalion 2 simplex 145.585 MHz, PL 110.9