Safety Information - Retevis RT669 Bedienungsanleitung

Automatic Battery Saving Function
This function starts when the machine does not receive a signal or does not perform an operation
for more than 10 seconds. The machine automatically stops this function when it receives a
signal or performs an operation.
Chinese/English voice prompts
Press and hold PTT+DOWN + channel (10) to power on, Switch voice prompt function
Press and hold PTT+DOWN + channel (15) to power on, Switch Chinese/English Language.
Low Battery Voltage Warning
When the battery voltage is 3.4v, the radio voice prompts: "charge battery". When the battery
voltage is 3.2v, the radio is forbidden to transmit.
General
Frequency range PMR446
Memory channels 16 Groups
Operation voltage DC 3.7V
Frequency stability ±2.5ppm
Transmitter
RF Power ≤0.5W
Modulation FM
Maximum deviation ≤±5KHz
Spurious emission ≤-60dB
Transmission current ≤1000mA
Preemphasis Character 6dB per octave
Note：The above specifications/technical instructions are for reference only because of the
continuous improvement of the technology. Please refer to the physical object.

Safety Information

Operation temperature -20℃—+50℃
Mode of operation Simplex
Antenna impedance 50Ω
Volume 55x25x153mm
Receiver
Sensitivity <0.16uv (12dB SINAD)
Squelch Sensitivity <0.2uv
Audio power ≥380mW
Audio distortion <10%
Intermediation(W/N) ≥65dB
Receiver current ≤380mA