When you use a radio, most of the time you’re probably not actively using it. The 5-5-90% cycle in the radio communications industry refers to this phenomenon. It means that 5% of the time you’re transmitting, 5% you’re receiving, and 90% you’re on standby.
Therefore, when you measure the battery capacity of a radio, you need to consider battery standby — your radio needs to last a long time even when it’s not transmitting or receiving.
Below, we’ll go over everything you need to know about battery standby time on push-to-talk (PTT) two-way radios.
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