How to make HD1 communication in different encryption levels?

About radio encyption function, different brands with different encryption ways, even same brand different models, may the encryption is also difference. so when you meet different brands encryption questions, which is normal status. let us learn to how to make same brand two HD1 communication in different encryption levels, The encryption of HD1 has two ways: normal and enhanced encryption

How to use RT82 emergency alarm?

Some radios come with a programmable, emergency alert button that helps sound the alarm in an emergency. Typically it is a big orange button either on the side of a radio by the push to talk button, or on the top of the radio. A radio dealer can custom program the button to activate an alert and alarm that will be heard by the necessary personnel to respond to emergencies.Today, let us discusss how to use RT82 emergency alarm?