● Large LCD panel which displays frequency and all kinds of information 
● DUAL-DIGITAL TUBE FOR CHANNEL DISPLAY 
● USE ELtechnology for backlight 
● PA、CW、AM、FM、USB、LSB mode 
● A、B、C、D、E、F , 
● banks in total, where 60 channels at least can be individually programmed. 
● Frequency Tuning Step can be 10HZ, 100HZ, 1KHZ or 10KHZ. 
● Multiple CLARIFIER Operating Modes 
● Flexible menu functions and PC programming software to meet varied customer demands 
● ECHO Function 
● SQ, ASQ Function (FM and AM mode only) 
● RF GAIN ADJUSTMENT 
● RF PWR ADJUSTMENT 
● SCAN FUNCTION 
● RB FUNCTION 
● NB/ANL FUNCTION 
● DW DUAL-WATCH FUNCTION 
● BEEP VOICE PROMPT 
● +10KHZ Function 
● SWR、S/RF、DC Voltage display function 
● TOT function 
● HI-CUT FUNCTION
● EMG CALL 
● SWR PROTECTION 
● POWER SUPPLIED VOLTAGE PROTACTION
● Key-Lock Function 
● VOX function 
● CTCSS/DCS code 
● RX compander: noise blanker 
● Noise gate setting: mic noise adjustable 
● RX Noise Reduction (only AT-5555PLUS/N) 
● Compatible with “electronic” and “dynamic” MIC type