GOOZEEZOO Allstar RF Node UHF SR-FRS Radio Programming Module Pi-hat for Allstar, Echolink, APRS, Digital Modes Compatible for Raspberry Pi 2/3/4 | Pin to Pin Replace SA-818 Module| UHF Freq 400-470

["2023 Upgraded Allstar Node : SR-FRS Radio Programming Module( pin to pin replace SA-818 Module) is a versatile Raspberry-Pi hat that can be used for Allstar, Echolink, APRS, or any digital modes","Working Mode: The both sides of the aTYPE C connecters have different function; PWR+COS(Flash) Communication with Raspberry on USB (main); PWR(GREEN) use /dev/ttyUSB0 to Change UHF RF node Frequency(only work when you want change UHF Freq (400-470)","Four section on This Program: Radio - Program the radio (frequency/tome/squelch); Volume -Set the volume level; Filters-Set filters; Version-Show the firmware version of the SA818","Additional Help: Use the program in this GitHub repository to program the radio module SR-FRS used for the Pi-Hat (github. com/jumbo5566/SRFRS)DCS Codes not support YET; Package list: a SR-FRS Radio Programming Module, USB C Cable and an Antenna","SR110U Board OLED INDICATORS: PTT flash red led light means RF transmit; COS in blue means receiving the RF signal; COM in YELLOW means audio data transmit; PWR means power supply is normal; NOTE: Before programming the SR-FRS module, make sure you HAVE consulted the band plan for your country and transmit on a frequency you are allowed to use"]