User manual AKG PT 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. [. . . ] AKG will accept no liability for any damage resulting from the use of standard rechargeable batteries. Adjustment functions are electronically locked to prevent parameters from being readjusted unintentionally during a performance or lecture. This is the only way to make sure you won't "go on air" on a frequency that is not allocated or coordinated and risk "jamming" some other radio service or active radio mic. Depending on the way you switch power to the transmitter ON, the transmitter will be in either LOCK mode or SILENT mode on powering up. â· If you are not sure as to what carrier frequency the transmitter is tuned to, switch the transmitter to SILENT mode (refer to section 3. Push and hold the setup switch (6) until the backlighting of the display (2) comes on. The display (2) will first show the firmware version and then the currently selected carrier frequency in MHz. As the backlighting goes out, the display changes as follows: If the carrier frequency is not an allocated or coordinated one and/or different from the receiver frequency, set the transmitter to a suitable, legal frequency referring to section 3. 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 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: Note: 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. [. . . ] You can check the remaining battery capacity at any time by turning the setup switch briefly to the left or right one to three times (depending on the currently active screen). Clamp the microphone on your clothing as close as possible to your mouth. Remember that gain-before-feedback will be the higher the smaller the distance between the microphone and the mouth!Make sure to aim the microphone at your mouth. [. . . ]