PART III: HT 81 HANDHELD TRANSMITTER III

1 Description

The HT 81 handheld transmitter and matching microphone elements (optional) provide the same acoustic performance as the equivalent hardwire microphone versions. The microphone elements available for the HT 81 have been specifical- ly designed for vocal use.

The HT 81 operates in a subband up to 3 MHz wide within the 710 MHz to

860.9MHz UHF carrier frequency range. The HT 81 can be switched to a maxi- mum of 15 different carrier frequencies depending on local frequency allocations. The transmitter uses a dipole antenna integrated in the body.

The controls can be protected against accidental misadjustment collectively (2d) or individually with the supplied adjustable protective ring (2j).

2a

PWR: Switches the transmitter power ON ("I") and OFF ("0").

1.1 Controls

2b

Status LED: Indicates battery status and audio input overload.

 

 

LED glowing dimly: batteries are OK.

 

 

LED constantly lighting brightly: batteries will be dead in about 60 minutes.

 

 

LED illuminating brightly: audio input is overloaded.

 

2c

MIC: Mutes the audio signal (position "0") while power and carrier frequency

 

 

remain ON.

 

2d

Color Code: If you use the transmitter in a multichannel system you can

 

 

remove the black plastic ring and replace it with a colored ring from the optio-

 

 

nal Color Coding kit to identify each wireless channel by a different color.

 

2e

GAIN: This rotary pot allows you to match the microphone level to the trans-

 

 

mitter’s audio section.

 

2f

Battery Compartment: Refer to Section 2 Setting Up.

 

2g

CHANNEL: This rotary switch selects the desired carrier frequency (depen-

 

 

ding on local allocations) or switches between the carrier frequency and its

 

 

alternative frequencies.

 

Prior to selecting frequencies, switch the transmitter OFF.

Important:

2h

Carrier Frequency Table: A label listing the available frequencies is affixed

 

 

to the battery compartment.

 

2i

Frequency Set Designation: The label inside the battery compartment also

 

 

indicates the designation of the Frequency Set.

 

2j

Adjustable protective ring: Protects the controls from being misadjusted

 

 

accidentally.

 

 

The interchangeable microphone elements (2k) D 880 WL1, D 3700 WL1,

1.2 Interchangeable

D 3800 WL1, C 5900 WL1, and C 535 WL1 are acoustically and mechanically

Microphone Elements

identical to the equivalent hardwire versions. They feature the same transducer

(not supplied)

capsules and mechanical construction.

 

Extremely high gain before feedback, optimum handling noise rejection, ultimate

 

protection from damage, and an integrated wind and pop screen are only the most impressive features of these microphones. For more details, refer to the respective AKG brochures.

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AKG Acoustics PT 81, PR 81 manual Part III HT 81 Handheld Transmitter, Controls, Interchangeable, Microphone Elements
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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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