User manual AKG PT 4500

[. . . ] Changes or modifications not expressly approved in writing by AKG Acoustics may void the user's authority to operate this equipment. This Manual contains important instructions for setting up and operating your equipment. Please take a few minutes to read the instructions below carefully before operating the equipment. You can use the PT 4500 bodypack transmitter with both dynamic microphones and condenser microphones operating on a supply voltage of approx. [. . . ] 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). 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. 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). 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. [. . . ] This will maintain the battery pack's capacity at a higher level for a longer time. To clean the transmitter surfaces, use a soft cloth moistened with water. >PrE< (comes up on powering up only and does not appear on receiver. You can select Presets, but note that defective Presets will not be available. [. . . ]