1. Description
SA828Pro is a highly cost-effective, full-featured walkie talkie module .It supports both voice and
data communication modes. It integrates a high-speed microcontroller, a high-performance RF
transceiver chip, and an RF power amplifier.All parameters(CTCSS, CDCSS, SQ, Predefined
channels etc.) can be easily modified by PC software, Users only need to add external power supply,
speaker, and audio taper, then it becomes a miniature walkie talkie with 16 adjustable channels.
Simplified interface and Ultra small size make this module widely used in various applications and
conveniently embedded into various handheld. SA828Pro is manufactured and tested using a strictly
lead-free process and complies with RoHS and REACH standards.
2. Features
 UHF Frequency : 400~480 MHz
VHF Frequency :134~174 MHz
(2 frequency bands are optional)
 Tx and Rx frequency can be set alone
 Bandwidth 12.5 / 25 KHz
 High/ low power is optional
（500mW/1.5W@4.0V）
 Distance up to 4-5km in open area
 High Sensitivity：-124 dBm
 High-integrated, Small Size
 38 CTCSS (can be set via PC software and serial port)
 166 CDCSS
(can be set via PC software and serial port)
 8 level squelch
 Wide range of working voltage 3.3-5.5 V
 External potentiometer to adjust volume
 1 ppm KDS TCXO crystal, Stable performance
3. Application
 Small walkie talkie
 Invisible intercom system
 audio surveillance system
 Outdoor Sport products
 building community security system