在线浏览, 第3页, 海能达 Hytera PD700G 使用说明书

2 4. Basic Operations Powering On/Off Rotate the Radio On-Off/Volume Control knob clockwise/ counter-clockwise until a click is heard to turn the radio on/off. Adjusting the Volume After turning the radio on, rotate the Power On-Off/Volume Control knob clockwise to increase the output sound volume, or counter-clockwise to decrease it. Adjust Power Level With this feature, you may switch power levels quickly. Generally, we recommend you to adopt low power for battery saving. However, if you cannot communicate with radios located at a distant place with low power, please select high power. Press the programmed Adjust Power Level key to switch the Tx power of the current channel between High and Low. Selecting a Zone A zone is a group of channels exhibiting the same property. You can list such channels into a zone for convenient management to them. The radio supports 3 zones: Zone 1, Zone 2 and Zone 3. Each zone contains 16 channels at most. You may quickly toggle to your wanted zone by pressing the programmed Zone Up or Zone Down key. When toggling to a zone, you will hear the alert tone for the zone (one alert tone for Zone 1, two alert tones for Zone 2 and three alert tones for Zone 3). Selecting a Channel After turning the radio on, rotate the Channel Selector knob to select a needed channel. You can also switch to the designated channel by pressing the Preset Channel key. If the Channel Notify function is active, you will hear the corresponding channel number when switching to any channel. Switching the Channel Mode Each channel can be programmed as either analog channel or digital channel via your dealer. If the current zone includes both analog and digital channels, you may quickly switch between digital and analog channels through the Channel Selector knob. 5. Call To ensure optimal volume of the receiving radio, hold the palm microphone approximately 2.5 to 5 centimeters away from your mouth. Private Call Initiating a Call In standby mode, hold the PTT key to transmit a private call to the private call contact preset for the current channel. Note: Your dealer may preset a contact for each digital channel. The preset contact could be a private call contact, a group call contact or an all call contact. Receiving a Call or Calling Back When a private call is received, you can listen to it without any operation. You may hold the PTT key within the preset time period to call back.