User manual AKG HT 4500

[. . . ] Please read the manual before using the equipment!Do not expose the equipment to direct sunlight, excessive dust, moisture, rain, mechanical vibrations, or shock. Be sure to dispose of used batteries as required by local waste disposal rules. Never throw batteries into a fire (risk of explosion) or garbage bin. [. . . ] As soon as the below screen appears on the display (2), the transmitter is in LOCK mode. The "LOCK" label indicates that all controls except for the MUTE switch are electronically locked to prevent misadjustment. Push and hold the ON/OFF button (3) until the message "oFF" appears on the display (2). The display goes dark and power to the transmitter is OFF. â· If you are not sure as to what carrier frequency the transmitter is tuned to, place the transmitter into SILENT mode following steps 1 and 2 below. In SILENT mode, you can check and adjust the carrier frequency and input gain without transmitting a radio signal. Push and hold the setup switch until the display backlighting comes on. The display will first show the battery capacityin hours and as a bargraph and then the currently selected carrier frequency in MHz. As the backlighting goes out, the display changes as follows: 3. The transmitter is now in SILENT mode and the display shows the Preset menu. You can either select one of the Preset Channels from the Preset menu (section 3. The spacing between Preset frequencies prevents any mutual interference. a Preset comprises one or more Groups of carrier frequencies. Group numbers are shown under the "GRP" label. Carrier frequencies are also called "Channels" whose numbers are indicated below the "CH" label. The spacing between these frequencies is wide enough to prevent any mutual interference (intermodulation). Presets make it much easier to design a multichannel system. They save time because you do not need to calculate your own carrier frequencies and help you avoid intermodulation problems. Each Preset has a one or two-character "NAME" relating to the country where the respective carrier frequencies are allocated (e. When designing a multichannel system, make sure to use Channels within the same Group only. Using Channels of different Presets and/or Groups simultaneously may cause intermodulation. â· Some Presets may be approved in more than one country. [. . . ] In this case, it is often enough to move away from the microphone a little to stop the feedback. Never let more than two persons share a microphone. Ask your backing vocalists never to sing more than 35 degrees off the microphone axis. the microphone is very insensitive to off-axis sounds. [. . . ]