AKG Acoustics HT 81, PR 81, PT 81 manual Cleaning, Multichannel Systems

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PART V: OPERATING NOTES V

2.The red AF LED (1hd on the receiver constantly lighting red and/or the status LED (2b, 3c) on the transmitter lighting constantly means the transmitter is overloaded. Turn the GAIN control (2e) or (3j) on the transmitter CCW to the point that the above LEDs will only flash occasionally.

3.Set the audio input level on your camcorder or on the mixer channel to which the receiver is connected.

If the selected input provides phantom power, switch the phantom power OFF.

4.If unwanted noise becomes audible, turn the SQUELCH control (1j) CW just enough to suppress the noise.

The RF LED (1c) will light red every time the squelch mutes the audio output of the receiver.

Never set the squelch threshold higher than absolutely necessary. The higher the squelch threshold, the lower the sensitivity of the receiver and thus the usable range between transmitter and receiver.

5.Check the field strength of the received signal. If the RF LED (1c) is dark, repo- sition the receiver and/or transmitter such that the RF LED (1c) will light green.

6.The RF LED (1c) on the receiver illuminating means no signal is received or the squelch is active.

Switch the transmitter ON, move closer to the receiver, or turn the SQUELCH control (1j) CCW to the point that the RF LED (1c) will light green constantly.

1.Be sure to assign a separate carrier frequency to each transmission channel (transmitter + receiver).

2.Set the transmitter and receiver to one of the frequencies marked with * in the carrier frequency tables (1n, 2h, 3k).

If reception on the selected carrier frequency is disturbed, set the car- rier frequencies for all channels up or down one or two notches using the respective CHANNEL controls (1k, 2g, 3f) on each transmitter and receiver.

This is necessary to provide the minimum frequency spacing required for intermodulation-free multichannel operation.

Do not operate two or more channels on the same frequency at the same time and location. This would cause unwanted noise due to radio interference.

Refer to the manual of your camcorder or mixing console.

Important:

1.2Multichannel Systems

Important:

Important:

2 Cleaning

Use a soft cloth moistened with water to clean the receiver and transmitter surfaces.

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Contents PR 81 HT 81 PT Table of Contents Description Safety and EnvironmentPart I General FCC StatementUnpacking PR 81 receiver with accessories HT 81 handheld transmitterPR 81 receiver with accessories PT 81 bodypack transmitter PR 81 receiver3 PT 81 CB 40 bag Color Coding Kit Controls 1a Power I/O on/off switchII Part II PR 81 Receiver Setting Up Part II PR 81 ReceiverII Part II PR 81 Receiver Receiver on a Camera Using the Belt ClipMounting Audio ConnectionII Part II PR 81 Receiver Controls Prior to selecting frequencies, switch the transmitter OFFPart III HT 81 Handheld Transmitter InterchangeableIII Part III HT 81 Handheld Transmitter Part IV PT 81 Bodypack Transmitter MicrophonesPart V Operating Notes Adjusting the Transmitter and ReceiverIV Part IV PT 81 Bodypack Transmitter Cleaning Multichannel SystemsVI Part VI Appendix TroubleshootingProblem Possible Cause Remedy Specifications Part VI Appendix860.400MHz 734.600MHz 777.800MHz 860.900MHz Set UK69B UKSpot Set US58 Set EU59858.200MHz 735.200MHz 778.400MHzPage 3k/3l

HT 81, PT 81, PR 81 specifications

AKG Acoustics has long been recognized as a leader in the field of professional audio equipment, and their HT 81, PR 81, and PT 81 microphones exemplify the brand's commitment to quality, innovation, and user-centric design. These microphones are particularly suited for applications in live sound, broadcast, and studio recording, making them versatile tools for audio professionals.

The AKG HT 81 handheld transmitter microphone is designed for wireless performance. It features a dynamic capsule that delivers a clear and natural sound, a significant advantage for vocal performances. The microphone is engineered to minimize handling noise and feedback, ensuring that the audio remains pristine even in challenging environments. Its robust build quality can withstand the rigors of touring and live shows, making it a reliable choice for entertainers on stage.

Complementing the HT 81, the PR 81 is a professional receiver that supports a wide frequency range, allowing for clear audio transmission without interference. This receiver is equipped with advanced diversity reception technology, which helps mitigate dropouts and ensures consistent audio quality, even in crowded RF environments. The PR 81 offers a range of connectivity options, enabling easy integration into existing audio systems, whether in venues or broadcasting setups.

The PT 81 bodypack transmitter is another integral component of this series, designed for use with lavalier or headset microphones. It features a lightweight and ergonomic design, ensuring comfort for performers during extended use. The PT 81 is equipped with a high-quality analog audio input, allowing for seamless connection to a variety of microphones. Its long battery life is a significant advantage, providing reliable operation for long events or sessions.

All three devices utilize AKG’s advanced wireless technology, which incorporates digital signal processing for enhanced audio quality and reduced noise interference. The system also offers multiple channels, allowing for the simultaneous use of multiple microphones without conflict. With quick and easy setup, users can spend more time focusing on performance rather than troubleshooting audio issues.

Overall, the AKG HT 81, PR 81, and PT 81 represent a powerful trio of wireless audio solutions. Their combination of durability, sound quality, and user-friendly features makes them an excellent choice for any professional looking to elevate their audio experience. Whether for stage, studio, or broadcast applications, these microphones stand out as reliable tools that deliver outstanding performance.
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