Chapter 8. - Selective Calling - Baofeng UV-5R EX User Manual

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The Baofeng UV-5R EX has a full implementation of DTMF, including the A, B, C and D
codes.
The numerical keys, as well as the , and
codes as you would expect The A, B, C and D codes are located in the
and keys respectively (+).
EXIT
To send DTMF codes, press the key(s) corresponding to the message you want to send
while holding down the PTT key.
If you have the keypad lock enabled on your radio, you can still send DTMF
tones the regular way without having to unlock your radio.
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keys correspond to the matching DTMF
, ,
MENU
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Chapter 8. - Selective calling

Some times when you're working with larger groups of people using the same channel,
communication can get very crowded or disorderly. To minimize this problem, several
methods of blocking out unwanted transmissions on your frequency have developed. In
general, there are two forms of selective calling in two-way radio systems: Group calling,
and individual calling.
Group calling, as the name suggest, is a one-to-many form of communication. Every radio
in your working group is configured the same way and any radio will make contact with
every other radio in the group.
Individual calling, sometimes also known as paging, is a one-to-one form of communica-
tion.
Every radio is programmed with a unique ID code. And only by sending out a matching
code can you get that radio to open up to your transmissions.
The Baofeng UV-5R EX features three different ways of group calling
●
CTCSS
●
DCS
● Tone-burst (1000Hz, 1450HZ, 1750Hz)
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