AKG Acoustics PT 81, HT 81 manual Part II PR 81 Receiver, Setting Up

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PART II: PR 81 RECEIVER II

1g

Antennas: Being a diversity receiver, the PR 81 uses two antennas in order

 

 

to receive the transmitter signal at two different points in space. The diversity

 

 

circuit will automatically activate the antenna that provides the better signal.

 

 

1h

Color code platelet: If you use the receiver within a multichannel system,

1.2.2 Front Panel

 

you can remove the black plastic platelet and replace it with a different color

 

 

platelet from the optional Color Coding Kit. This allows you to identify the

 

 

various channels clearly and easily.

 

1i

Battery compartment: Accepts the supplied 1.5 V dry batteries, recharge-

 

 

able batteries of the same size (not supplied), or the optional PA 81 supply

 

 

adapter.

 

1j

SQUELCH: The squelch will mute the receiver if the received signal is too

 

 

weak so the related noise or the self-noise of the receiver will not become

 

 

audible when the transmitter is switched OFF. Set the SQUELCH control to

 

 

minimum before switching power to the receiver ON for the first time. (For

 

 

details, refer to Part V, section 1.)

 

1k

CHANNEL: This rotary switch selects the desired receiving frequency.

 

1l

Battery compartment cover.

 

1m Screwdriver: A detachable screwdriver is provided on the inside of the bat-

 

 

tery compartment cover (1l) for adjusting the SQUELCH and CHANNEL

 

 

controls.

 

 

1n

Carrier frequency table: Sticker indicating the available carrier frequencies

1.2.3 Rear Panel

 

and the frequency set for which your receiver has been programmed.

 

1o

Approval marks.

 

1p

Belt clip for fixing the receiver on your belt.

 

 

 

1.3 Audio Output

The AUDIO OUT 3-pin mini XLR connector (1r) on the receiver top panel provides

a fixed-level line output and an adjustable mono headphone output. The rotary

 

control (1e) lets you adjust the volume level of the headphones output.

 

The AUDIO OUT connector (1c) is wired as follows:

 

Pin 1: ground

 

Pin 2: line output (fixed level)

 

Pin 3: headphone output (adjustable)

 

In order to avoid overloading the headphone amplifier, do not connect head-

Important:

phones with an impedance of less than 16 Ω to the headphone output.

 

 

2 Setting Up

Prior to inserting batteries into the receiver, set the transmitter and the receiver to

2.1 Selecting the

the same carrier frequency. The carrier frequency tables on the transmitter (2h, 3k)

Receiving Frequency

and receiver (1I) indicate the channel numbers corresponding to the various car-

 

rier frequencies.

 

1.

If the belt clip (1p) is attached to the receiver, remove the belt clip (1p) first so

 

 

you can open the battery compartment (1I):

 

 

Use a screwdriver as a lever to lift both ends of the belt clip (1p) out of the

 

 

fixing holes in the receiver side panels.

 

2.

To open the battery compartment (1I), press down on the arrow symbol on the

 

 

battery compartment cover (1l) and push the battery compartment cover (1l)

 

 

in the direction of the arrow away from the receiver.

 

3.

Remove the screwdriver (1m) from the battery compartment cover (1l).

 

4.

Use the screwdriver (1m) to set the CHANNEL selector (1k) to the desired

 

 

channel.

 

5.

Set the transmitter to the same channel referring to section 2.1 in Part III:

 

 

HT 81 Handheld Transmitter or Part IV: PT 81 Bodypack Transmitter.

 

21

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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 receiverControls 1a Power I/O on/off switch II Part II PR 81 Receiver3 PT 81 CB 40 bag Color Coding Kit 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 MicrophonesAdjusting the Transmitter and Receiver IV Part IV PT 81 Bodypack TransmitterPart V Operating Notes Cleaning Multichannel SystemsTroubleshooting Problem Possible Cause RemedyVI Part VI Appendix 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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