Retevis RT78 Mode D'emploi page 4

Note: Due to the waterproof machine, the battery and the body are relatively compact.
⑩ battery charging interface
Please use the original charger for charging. Do not transmit the radio while charging.
Frequency range: UHF 400-470MHZ
Channel number: 16*N group（N≧1)
RF power:≤4w
Channel space:25khz(wideband) 12.5khz(narrowband)
Support network: 2G, 3G, 4G, 5G, WiFi, CDMA, GSM, etc.
Supply voltage: 3.7 V lithium battery
Battery capacity: 5200 mAh
Charging interface: USB
Mode of operation: full-featured APP operation
FM radio: FM 88-108MHz
Frequency stability: ±2.5ppm
Working temperature: -20 ~ +60 ° C
Dimensions: 58 (W) x 125 (H) x 35 (D) mm (without antenna)
Weight: body 140g battery 120g
Receiver
Sensitivity（12DB SINAD)
Adjacent Channel Selectivity
intermodulation rejection
False signal response
Audio response
Signal to noise ratio
Launch part
output power
modulation mode
Adjacent channel selectivity
FM noise
Parasitic and harmonic
Audio response
Modulation distortion
RT78 the main Specification
Wideband
≤0.20μV
≥70db
≥65db
≥70db
±1～-3db(0.3～3khz)
≥45db
broadband
16KφF3E
≥70db
≥45db
≥60db
±1～-3db(0.3～3khz)
3
Narrowband
≤0.22μV
≥65db
≥60db
≥70db
±1～-3db(0.3～2.55khz)
≥40db
narrowband
≤4W
11KφF3E
≥60db
≥43db
≥60db
±1～-3db(0.3～2.55khz)
≤3%