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Basic Radio Operation - Transmitting
Basic Radio Operation - Receiving
Channels
The SM-2000E Series radio can store up to 99 channels within the same frequency band (UHF 400~
470MHz VHF 136~174 MHz).These channels can be selected by using the
▼▲
(up/down) keys.
1) Busy
When receiving a call, the icon appears. Adjust the volume level to a comfortable listening
level. Mute and unmute condition is determined by the squelch level and current channel's
tone option.
2) Correct Call
This applies to channels that have sub-audio tone option (CTCSS, DCS, IDCS) programmed.
Correct call means the received tone option is equal with the current channel option.
The transceiver goes to unmute condition if the current channel is in correct call status, where
the transceiver matches both carrier and correct CTCSS or DCS codes.
3) Monitor Function
Release the squelch and tone option to check whether you can use current channel.
Push 'MONITOR' KEY(ON/OFF) to use this function.
4) Channel Selection
To change the channel, push
▼▲
(up/down). The empty channels (not programmed) will be skipped
automatically when channels are changed. Push and hold
▼▲
(up/down) to change channels rapidly.
5) Group Selection
To change the current group, you can assign 'GROUP ' functions to
'PROGRAMMABLE KEYS'. The empty groups (not programmed) will be skipped automatically when
groups are changed. Push and hold the programmed key to change groups rapidly. LCD shows the
name of the current group for 1 second if the group is changed.
6) Options
Squelch Level
GROUP UP KEY
1 GROUP 1 CHANNEL
1 SECOND LATER
Squelch level is adjustable through the programmer. If signals are weak, you can
decrease squelch level. You can increase the squelch level when unwanted signals exist.
1) PTT Key (Push To Talk)
Hold microphone approximately 3 inches distance from your mouth.
Push and hold PTT key and then speak into the microphone.
The PTT can also be used to transmit PTT ID codes, 5 tone Selcall, and
DTMF codes. Select DTMF/Selcall code from Selcall List and push PTT key.
Refer to individual tone section for more information.
2) Call Key
If you have assigned a CALL function to the 'Programmable keys' to transmit codes,
select 5-tone code from Selcall List and push the CALL key.
Please refer to "Selective" section.
3) Talk Around
This function allows users to communicate with others directly when
repeater frequencies are programmed i.e. when RX and TX frequencies are
different. When Talk Around is selected from the menu the receiving frequency
is then used for both transmitting and receiving. To use this function, assign
' Talk Around ' function to 'Programmable keys' in programmer. This function will be cancelled
automatically when the channel is changed.
4) Transmit Inhibit
Time out Timer (TOT)
This function is to prevent continuous transmitting over that of the specified time.
You can set this option through the programmer. Transmitting is inhibited if you keep
transmitting more than the programmed time. LCD shows 'TOT' for a few seconds.
Function
Function
Range
Range
Step
Step
Default
Default
TOT ON/OFF
TOT ON/OFF
ON/OFF OFF -
10~990 10 10
TOT time
TOT time
