A-504

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A-504

A-504

A-504

Additional information

details

General
Type A-504
Equipment Name Handheld FM Walkie Talkies
Channel Capacity 16
Channel Spacing 25KHz/12.5KHz
Working Voltage DC7.4V
Frequency Range 400-520MHz
Battery Lithium Battery 2000mA
Antenna Impedance 50Ω
Operating Temperature -20℃ ~ +50℃
Weight 265g
Size: Length*Width*Thickness(mm) 119*60*40(Without Antenna)
 Frequency Modulation FM
Receiver
Frequency Stability +/-2.5ppm Rated Audio Power 500mW
Reference Sensitivity  

Better than -119dBm

 

SNR ≥40dB
Audio Distortion ≤5%
Adjacent Channel Selectivity(ACS) 65dB Co-channel Rejection                     ≥-8 dB
Audio Response ≤+2dB & ≥-10dB    
Transmitter
Transmitting Power 5W /1W Frequency Stability +/-2.5ppm
Transmitting SNR

 

≥40dB Maximum Frequency Offset ≤5KHz
Emit Spurious Radiation ≤7.5uW Modulation Characteristic +1dB ~ -3dB
Adjacent Channel Power -65dB Modulation Distortion ≤5%

 

 

Main Function

Power Beep
16 Channels
EN/CN
Power Saving
V0X
Scan
Low Voltage Alert
Launch Time Limit
Squelch Level Setting
Scrambler
Compandor
Frequency-hopping(Double Encryption Against Cracking)
Non-standard QT/DQT
SK1/SK2 Customization (Listen/Voice/Channel Broadcast)
QT/DQT
TOT
Code Switch

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