AKG HT 81 User Instructions Download Page 3

1.1 Safety

1.2 Environment

2.1 Introduction

1. Spill no liquids on the equipment and do not drop any objects

through the ventilation slots in the equipment.

2. Do not place the equipment near heat sources such as radiators,

heating ducts, or amplifiers, etc. and do not expose it to direct sun-
light, excessive dust, moisture, rain, mechanical vibrations, or
shock.

1. Be sure to dispose of used batteries as required by local waste dis-

posal rules. Never throw batteries into a fire (risk of explosion) or
garbage bin.

2. When scrapping the equipment, remove the batteries, separate the

case, circuit boards, and cables, and dispose of all components in
accordance with local waste disposal rules.

Dear Customer:
Thank you for purchasing an AKG product. This Manual contains important instruc-
tions for setting up and operating your equipment. Please take a few minutes to
read the instructions below carefully 

before operating the equipment.

Please

keep the Manual for future reference. Have fun and impress your audience!

18

PART I: GENERAL

I

FCC Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
Parts 74, 15, and 90 of the FCC Rules. These limits are designed to provide reasonable protection against harm-
ful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency ener-
gy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or more of the follo-
wing measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and the receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

Shielded cables and I/O cords must be used for this equipment to comply with the relevant FCC regulations.
Changes or modifications not expressly approved in writing by AKG Acoustics may void the user’s authority to
operate this equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this
device may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.

1 Safety and Environment

2 Description

Summary of Contents for HT 81

Page 1: ...PR 81 HT 81 PT 81 User Instructions Please read the manual before using the equipment...

Page 2: ...s 24 2 8 Aligning the Antennas 24 2 9 Color Code 24 PART III HT 81 HANDHELD TRANSMITTER 25 1 Description 25 1 1 Controls 25 1 2 Interchangeable Microphone Elements 25 2 Setting Up 26 2 1 Selecting the...

Page 3: ...protection against harm ful interference in a residential installation This equipment generates uses and can radiate radio frequency ener gy and if not installed and used in accordance with the instr...

Page 4: ...cable for headphones MK HP C connecting cable for cameras and headphones W 880 foam windscreen for D 880 WL1 W 3001 foam windscreen for D 3700 WL1 and C 5900 WL1 W 23 foam windscreen for C 535 WL1 CC...

Page 5: ...nd from 710 MHz to 860 9 MHz using a switching subband that is up to 3 MHz wide Subject to local frequency allocations you can switch the PR 81 to one of up to 15 different carrier frequencies 1a POWE...

Page 6: ...set for which your receiver has been programmed 1o Approval marks 1p Belt clip for fixing the receiver on your belt The AUDIO OUT 3 pin mini XLR connector 1r on the receiver top panel provides a fixed...

Page 7: ...river 1m to set the SQUELCH control 1j fully CCW minimum For details on setting the SQUELCH control 1j refer to section 1 in Part V 6 Align the battery compartment cover 1l with the guide grooves on t...

Page 8: ...been shorted 1 Unplug the connecting cable from the camcorder 2 Correct the problem 3 Plug the connecting cable into the camcorder jack again 1 Remove the backing from the supplied Velcro strips 2 At...

Page 9: ...r 2 Plug the XLR connector on the Y cable into the desired XLR input jack on the camcorder or mixing console 3 Connect the headphones to the mini jack on the Y cable 4 Use the rotary control 1e to set...

Page 10: ...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 microp...

Page 11: ...f conforming to the polarity marks The transmitter will not function with incorrectly inserted batteries 3 Set the PWR switch to I to switch the power to the transmitter on The status LED 2b will flas...

Page 12: ...latelet and replace it with a colored platelet includ ed in the optional Color Coding Kit to identify each channel by a different color 3f CHANNEL This rotary switch selects the desired carrier freque...

Page 13: ...us LED 3c fails to illuminate the batteries are dead Insert new batteries 6 Snap the security cover 3m back over the switches CCW You can wear the transmitter inside a shirt or jacket pocket fix it to...

Page 14: ...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 receiv...

Page 15: ...r too low 2 Interference from other wireless systems TV radio CB radios or defective electrical applian ces or installations 1 Antenna location Remedy 1 Set POWER switch on receiver to I 2 insert batt...

Page 16: ...z FM 50 to 20 000 Hz 10 ppm 30 kHz 0 5 Yes typ 50 dB A 10 mW 150 mA typ 2 x 1 5 V AA size batteries 12 hours 350 mV 1 kHz 220 k length 240 mm 9 4 in dia 36 mm 1 4 in 245 g 8 7 oz PT 81 710 to 860 9 MH...

Page 17: ...e las frecuencias Lista de frequ ncias Set EU59 CHANNEL FREQ 0 OFF 1 777 600MHz 2 777 800MHz 3 778 000MHz 4 778 200MHz 5 778 400MHz 6 778 600MHz 7 778 800MHz 8 779 000MHz 9 779 200MHz A 779 400MHz B 7...

Page 18: ...93...

Page 19: ...SNR 01001 AKG Set EUS 1 000 000 9 000 000 MHz 2 000 000 10 000 000 MHz 3 000 000 11 000 000 MHz 4 000 000 12 000 000 MHz 5 000 000 13 000 000 MHz 6 000 000 3k 3l PT 81 3b 3a 3c 3d 3e 3g 3g 3i 3m 3m II...

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