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1.1 Safety

1.2 Environment

2.1 Introduction

2.2 Unpacking

2.3 Optional Accessories

2.4 Description

Important!

1. Do not expose the equipment to direct sunlight, excessive dust, moisture, rain, mechanical vibrations,

or shock.

1. Be sure to dispose of used batteries as required by local waste disposal 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 instructions for setting up and
operating your equipment. Please take a few minutes to read the instructions below carefully before oper-
ating the equipment. Please keep the Manual for future 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.

The HT 4000 handheld transmitter and matching microphone elements (optional) provide the same
acoustic performance as the equivalent hardwire microphone versions. The microphone elements avail-
able for the HT 4000 have been specifically designed for vocal use.
The HT 4000 operates in one subband up to 30 MHz wide within the 650 MHz to 862 MHz UHF carrier
frequency band. Within the subband, you can either set the carrier frequency directly in 25-kHz incre-
ments or select one of the Subchannels 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 functions and con-

trols except for the MUTE switch are electronically locked to prevent parameters from being readjusted
unintentionally during a performance or lecture. The LCD screen displays the "LOCK" label.

SETUP mode

allows you to adjust and save the carrier frequency and input gain.

SILENT mode

, power to the transmitter is on, but no RF signal is transmitted. We recommend 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 "jamming" some other radio service or active
radio mic.

The backlit LCD screen indicates all important parameters, the current battery capacity, and the remain-
ing time before the battery will be dead.
The transmitter uses a dipole antenna integrated in the body and 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 accurate battery capacity indication.

2 Description

1 Safety and Environment

• BP 4000:

3 V rechargeable bat-

tery pack

• CU 4000:

Charger for two trans-

mitters or BP 4000 battery packs

• CH 4000:

Carrying case for one

complete WMS 4000 system

• W 880: