Walkie Talkie Module SA818S And SA818: Differences|NiceRF
Sa818 Board Resources - EasyEDA
Hugo on Twitter: "@f4goh No luck. The RF module (SA818, replacement of DRA818) seems dead. Nothing on its uart TX port and nothing on its RF output although it is correctly stimulated
SA818 VHF High Frequency Wireless Walkie-Talkie Module Intercom Module Embedded | eBay
6PCS SA818 U 400 ~ 480 MHz (UHF) High integrated Embedded Walkie Talkie Module|module|module uhf - AliExpress
Sa818 High Frequency Uhf 1w High Power Rf Walkie Talkie Module - Buy Walkie Talkie Module,Walkie Talkie Rf Module,Uhf Walkie Talkie Module Product on Alibaba.com