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SA818 1W Wireless Walkie-talkie Module Intercom Module Embedded

Availability: In stock
SKU: 1411562
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$33 AUD
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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:
 
● UHF band 400~480 MHZ
● VHF frequency 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:

parameterTest ConditionsMinimumtypicalmaximumunit
Operating voltage range 3.34.25.5V
 working temperature range -302570
Current consumption
Sleep current  ≤1 uA
Receiving current  60 mA
Emission current (high power)  650750mA
Emission current (low power)  450550mA
Transmitting RF parameters
Operating frequency rangeUHF 400 480MHZ
Operating frequency rangeVHF 134 174MHZ
Transmit power (high power)@VCC=4.0V2829.531dBm
Transmit power (low power) 2526.527dBm
Modulation sensitivity@1.5Khz/2.5KHZ offset 10 mV
Audio modulation distortion@1.5Khz/2.5KHZ offse 25%
Signal to noise ratio@1.5Khz/2.5KHZ offse384045dB
Adjacent channel power@12.5K offset -60dBc dBm
CTCSS modulation frequency offset 0.350.50.75KHZ
Receiving radio frequency parameters
Receiving sensitivity13dB output voice signal ratio -124 dBm
Receive signal to noise ratio@1.5KHZ frequency offset4550 dB
Audio output amplitude  700 mV
Audio output impedance  200 OHm

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





Delivery FeeFREE
Delivery Timeframes10 - 25 Days
Dispatch OriginChina
WarrantyUp to 12 months
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