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★ Note:In high level, the pins are in 3.3V.
Parameter | Test condition | Min. | Typ | Max. | Unit |
Operating voltage range | -- | 3.3 | 8 | 9 | V |
Operating temperature range | -- | -30 | 20 | 70 | ℃ |
Power Consumption | |||||
Sleeping Current | -- | -- | ≤3 | uA | |
RX current | -- | -- | 60 | mA | |
TX current (high output power) | @8v, 424.75MHz | 1400 | 1500 | mA | |
TX current (low output power) | 850 | 900 | mA | ||
TX current (high output power) | @4V, 424.75MHz | 1100 | 1150 | mA | |
TX current (low output power) | 650 | 700 | mA | ||
TX Frequency Parameter | |||||
Operating frequency range | UHF | 400 | 450 | 470 | MHz |
VHF | 134 | 150 | 174 | MHz | |
TX current (high output power) | @VCC=4.0V | 30 | 31 | 32 | dBm |
TX current (low output power) | 26 | 27 | 28 | dBm | |
TX current (high output power) | @VCC=8.0V | 35 | 36 | 36.5 | dBm |
TX current (low output power) | 30.5 | 31.5 | 32 | dBm | |
Modulation frequency | @1.5KHz/2.5KHz frequency deviation | 10 | mV | ||
Audio modulation distortion | @1.5KHz/2.5KHz Frequency deviation | -- | 2 | 5 | % |
Signal to Noise Ratio | @1.5KHz/2.5KHz frequency deviation | 38 | 40 | 45 | dBm |
Adjacent Channel Ratio | @12.5K offset | -- | -60 | dBc | |
CTCSS Modulation frequency | 0.35 | 0.5 | 0.75 | KHz | |
RX Frequency Parameter | |||||
RX sensitivity | 13dB output audio SNR | -- | -124 | -- | dBm |
RX SNR | @1.5 KHz Frequency deviation | 45 | 50 | -- | dB |
Audio output power | -- | -- | 2 | -- | W |
Audio output impedance | -- | -- | 8 | -- | OHm |
Type | Analog walkie talkie |
Output Power | 1W,4W |
Pin No. | Pin name | Description |
1 | MIC+ | Connect positive of external microphone |
2 | GND | Connect negative of external microphone or power ground |
3 | SPK/VOL | Eternal connect 8 ohm and 2W speaker and volume adjust electronic equipment |
4 | SPK | Audio output pin, external connect 8oHm and 2W speaker |
5 | H/L | RF high and lower power pin,connect“0” is lower power,off is high power |
6 | VOL | Audio volume adjust pin,external connect 200K adjustable electronic equipment |
7 | GND | External connect negative power |
8 | RXD | Data receive serial port |
9 | TXD | Data send serial port |
10 | VOXEN | Volume enable pin,“0” is open volume control function,“1”is close,default is“1” |
11 | PTT | Send/receive control pin,“0”is send;“1” is receive,default is receive |
12 | 8 | Frequency 16 channels, 8421code,No.8 bits,default is“1”output |
13 | 4 | Frequency 16 channels, 8421code,No.4 bits,default is“1”output |
14 | 2 | Frequency 16 channels, 8421code,No.2 bits,default is“1”output |
15 | 1 | Frequency 16 channels, 8421code,No.1 bit,default is“1”output |
16 | PD | Module sleep enable, “0” is sleep mode;“1”normal working,default is normal working mode |
17 | VCC | Connect positive power |
18 | GND | Connect negative power |
19, 21 | GND | Connect antenna ground |
20 | ANT | RF signal output,external connect 50oHm antenna |
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