Retevis RA89 Manual Del Usuario página 19

5 Tone encode
The writing way is the same as the DTMF.
5 Tone decode
Function: The function will be achieved when the radio receives the corresponding code.
Select: Turn on squelch.
Stun/kill: same with DTMF.
Wake: release the state of stun/kill.
TECHNICAL PARAMETERS
General
Channel Number
Operating Voltage
Operating Temperature
Weight
Dimension
Transmitter
Frequency
Modulation Type
Spurious Power
Modulation Noise
Receiver
Frequency
Sensitivity
Occupied Bandwidth
Selectivity
Inter mediation
Audio power
Audio distortion
Frequency Stability
Current
Audio response（300-3400Hz）
200
7.4VDC
-10°C～+50°C
295g（battery and antenna included）
126x62x43mm（without antenna)
144-148/420-450MHz US version;144-146/430-440MHz EU version
FM
≤-15dB
<-40dB
144-148/420-450MHz US version
144-146/430-440MHz EU version
136-174/400-480MHz
≤0.2 u V
≤16KHz
≥65dB
≥55dB
﹥500m W
≤10%
5ppm
standby: 60mA working:250mA
+7~-12.5dB
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