Toggles the FM band. It also switches the antenna input routing internally to optimize for FM frequencies. 2. BW / AM
Press the button to switch out of "Auto" mode when using large antennas.
Avoid turning the volume to maximum (63) on weak signals, as the small internal speaker will distort easily. Keep it around 40–50 and use headphones for better clarity. 5. HAM / SW
Tell you are best for reducing noise . Recommend a low-cost antenna tuner to improve selectivity .
Before powering on the device, understanding the physical interface prevents configuration errors. Front Panel Interface