Safety and compliance warnings 13Warning: Safe radio operation Switch the radio off at petrol filling stationsor near flammable liquids or gases. Switch the radio off in the vicinity of explo-sive devices and blasting zones. Using a handheld microphone or a radio whiledriving a vehicle may violate the laws and legis-lation that apply in your country or state. Pleasecheck the vehicle regulations in your area.Caution: EN 60950 requirementsThis radio complies with the European Union standardEN 60950 when operated up to the rated 33% duty cycle oftwo minutes transmit and four minutes receive, and withambient temperatures of 30°C or lower.Operation outside these limits may cause the external temper-ature of the radio to rise higher than this standard permits.Caution: High temperaturesThe bottom surface of the radio and the heatsink fins canbecome hot during prolonged operation. Do not touch theseparts of the radio.Important: Radio protectionAlways remove the fuses from the radio power cable beforecharging the vehicle battery, connecting a second battery orusing power from another vehicle (e.g. when “jump-starting” the vehicle).