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2 Description
2.1 Introduction
2.2 Packing List
2.3 Optional Accessories
2.4 Description
Important!
2.4.1 Controls
Refer to fig. 1.
Dear Customer:
Thank you for purchasing an AKG product. This Manual contains important instructions for
setting up and operating your equipment. Please take a few minutes to read the instruc-
tions below carefully before operating the equipment. Please keep the Manual for fu-
ture reference. Have fun and impress your audience!
• Check that the package contains all the parts listed above. If anything is missing, please
contact your AKG dealer.
• For optional accessories, refer to the current AKG catalog or folder, or visit www.akg.com.
Your dealer will be glad to help.
You can use the PT 4500 bodypack transmitter with both dynamic microphones and con-
denser microphones operating on a supply voltage of approx. 6 volts. You may also connect
an electric guitar, electric bass, or remote keyboard.
The PT 4500 operates in one subband up to 30 MHz wide within the 500 MHz to 862 MHz
UHF carrier frequency band. Within the subband, you can either set the carrier frequency di-
rectly in 25-kHz increments or select one of the Channels of the Preset Frequency Groups
of your transmitter.
The transmitter provides three operating modes:
In LOCK mode, the microphone output signal is transmitted to the receiver. All setup func-
tions and controls except for the MUTE switch are electronically locked to prevent parame-
ters from being readjusted unintentionally during a performance or lecture. The LCD screen
displays the "LOCK" label.
ACTIVE mode allows you to adjust and save the carrier frequency and input gain.
In SILENT mode, power to the transmitter is on, but no RF signal is transmitted. We rec-
ommend using only this mode for setting the carrier frequency. 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 "jam-
ming" some other radio service or active radio mic.
The backlit LCD screen indicates all important parameters, the current battery capacity, and
the remaining time before the battery will be dead.
The transmitter can be powered from two standard AA size dry batteries or the optional
BP 4000 battery pack from AKG.
• Never use standard rechargeable batteries! These may damage the transmitter
if the charging contacts are shorted and will provide no remaining battery life in-
dication. AKG will accept no liability for any damage resulting from the use of
standard rechargeable batteries.
1 Status LED: This bicolor LED indicates the current operating status of the transmitter:
Green:The output signal of the microphone or instrument is fed to the transmitter, which
transmits the audio signal to the receiver.
Red:The Status LED is lit red
- if the audio signal is muted while the RF section remains active. This prevents un-
wanted noise from becoming audible in the signal chain;
22
PT 4500
▲
!
1 PT 4500
bodypack transmitter
2 AA size 1.5 V
dry batteries