2pcs/lot RDA1846S Embedded 2W 5km UHF | VHF Walkie Talkie Module SA868
SA868 is a cost-effective integrated professional walkie-talkie module, built-in high-speed microcontroller, high-performance RF transceiver chip and RF power amplifier, and provides a standard serial port to communicate with the module, so that the module's related parameters can be set quickly and easily. Function 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.
There are two frequency bands of SA868: SA868-U and SA868-V. The only difference is the frequency range. The others are same, including module size, interface, software protocol, etc.
Two frequency band for your option, default is UHF:
- SA868-U: U band, 400 — 480MHz
- SA868-V: V band, 134 — 174MHz
This module compatible with our SA818, both of them has the same pinout
Features:
- Frequency range:
- SA868-U : 400 ~ 480 MHz (UHF)
- Tx and Rx frequency, Tx andRxCTCSS,CDCSS can be set alone.
- Band width 12.5/25KHz
- Output power up to 2W
- Transmission distance up to 4 to 6 kminOpen area
- Sensitivity: – 124 dBm
- Small size
- Built-in EEPROM, data kept unchanged even powered off
- 38 CTCSS
- 166 CDCSS
- 8 level squelch
- 8 adjustable volume
- High/ low power is optional(1.6W/1.8W)
- Wide range of working voltage 3.3 to 5.5 V
- 1 ppm KDS TCXO crystal
Application:
- small walkie talkie
- Invisible intercom system
- Sport products
- building community security system
- audio surveillance system
Block diagram:
Electronic Specifications:
Typical Application Circuit:
Pinout definition:
Mechanical dimensions(mm):
- 2pcs UHF 2W Walkie Talkie Module SA868
If you need VHF(134 ~ 175 MHz) frequency , just leave message please! Also, we have DEMO baord in store!
Shipment: Free shipping by China post airmail
