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SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded

SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded
SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded
SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded
SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded
SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded
SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded
SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded
SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded
SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded
SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded
SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded
SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded
SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded
SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded
SA818 VHF Very High Frequency 1W Wireless Walkie-talkie Module Intercom Module Embedded
$16.99
Ex Tax: $16.99
  • Stock: In Stock
  • Model: EB0042853
  • SKU: EB0042853
Item Overview:
 
SA818 is a cost-effective integrated professional walkie-talkie module with built-in high-speed microcontroller, high-performance RF transceiver chip and RF power amplifier, and provides standard TTL serial port to communicate with the module, which can quickly and easily set the relevant parameters of the module and Transceiver function for control. Users only need to connect an audio amplifier, microphone, and speaker to this module to work as a small walkie-talkie. The simplified interface and ultra-small size make this module widely available, and can be easily and quickly embedded in various handheld devices to improve the overall performance of the terminal products.
 
Features:
 
● VHF band 134~174 MHZ
● Transmit receive frequency independent
● Bandwidth 12.5 KHz
● Output power up to 1W
● Open distance is 4-5 km
● High receiving sensitivity: -124 dBm
● Highly integrated small volume
● 38-level CTCSS analog sub-audio code
● 166-level positive phase, reverse phase CDCSS digital sub-audio
● 8 levels of squelch
● 8-level adjustable volume
● High and low power options (500mW-1W)
● Wide operating voltage 3.3-5.5 V
● Built-in EEPROM, data power-down save
● 1ppm TCXO crystal oscillator, stable performance
 
Technical Parameters:

parameter Test Conditions Minimum typical maximum unit
Operating voltage range   3.3 4.2 5.5 V
 working temperature range   -30 25 70
Current consumption
Sleep current     ≤1   uA
Receiving current     60   mA
Emission current (high power)     650 750 mA
Emission current (low power)     450 550 mA
Transmitting RF parameters
Operating frequency range UHF  400   480 MHZ
Operating frequency range VHF  134   174 MHZ
Transmit power (high power) @VCC=4.0V 28 29.5 31 dBm
Transmit power (low power)   25 26.5 27 dBm
Modulation sensitivity @1.5Khz/2.5KHZ offset   10   mV
Audio modulation distortion @1.5Khz/2.5KHZ offse   2 5 %
Signal to noise ratio @1.5Khz/2.5KHZ offse 38 40 45 dB
Adjacent channel power @12.5K offset   -60dBc   dBm
CTCSS modulation frequency offset   0.35 0.5 0.75 KHZ
Receiving radio frequency parameters
Receiving sensitivity 13dB output voice signal ratio   -124   dBm
Receive signal to noise ratio @1.5KHZ frequency offset 45 50   dB
Audio output amplitude     700   mV
Audio output impedance     200   OHm

Pin:
Number Pin definition
1 Audio ON
2 NC
3 AF_OUT
4 NC
5 PTT
6 PD
7 H/L
8 VBAT
9 GND
10 GND
11 NC
12 ANT
13,14,15 NC
16 RXD
17 TXD
18 MIC_IN
Application:
 
- Small walkie talkie
- Ignore the intercom system
- Building community security system
- Outdoor sports products
- Audio monitoring system
 
Package Included:
 
1 x VHF Wireless Transceiver Module


SA818-VHF-Very-High-Frequency-1W-Wireless-Walkie-talkie-Module-Intercom-Module-Embedded-1441651

SA818-VHF-Very-High-Frequency-1W-Wireless-Walkie-talkie-Module-Intercom-Module-Embedded-1441651

SA818-VHF-Very-High-Frequency-1W-Wireless-Walkie-talkie-Module-Intercom-Module-Embedded-1441651

SA818-VHF-Very-High-Frequency-1W-Wireless-Walkie-talkie-Module-Intercom-Module-Embedded-1441651

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