GENERAL

INTRODUC'TION

SCOPE OF THIS MANUAL

This manual i? intended for use by experienced

technicians familiar with similar types of commercial grade communications equipment. It contains all re-

quired service information for the equipment and is current as of the publication data. Changes which may occur after publication are covered by either Service Bulletins or Manual Revisions. These are issued as re- quired.

ORDERING REPLACEMENT PARTS

When ordering replacement parts or equipment in- formation, the full part identification number should be included. This applies t o all parts : components, kits, or chassis. If the part number is not known, include the chassis or kit number of which it is a part, and a suffi- cient description of the required component for proper identification.

ns are recommended for v

one is within t w o feet (0.6

ransmit until all RF connectors are verified ectors are properly termi-

DO NOT operate this equipment lasting caps or in an explosive at-

properly grounded before

erviced by a qualified

technician only.

FCC COMPLIANCE AND TYPE NUMBERS

Type acceptance number

Frequency range

Complrance

ALHTK-940-1

806-870MHz

Part 90

ALHTK-941-1

896-941 MHz

Part 90

PRE-INSTALLATION CONSIDERATIONS

1.UNPACKING

Unpack the radio from its shipping container and

check for accessory items. If any item is missing, please contact KENWOOD immediately.

2.LICENSING REQUIREMENTS

Federal regulations require a station license for each

radio installation (mobile or base) be obtained by the equipment owner. The licensee .is responsible for en- ring transmitter power, frequency, and deviation are

hin the limits permitted by the station license. ansmitter adjustments may be performed only by nsed technician holding an FCC first, second or

sscommercial radiotelephone operator'sli- re is no license required to install or operate

3.PRE-INSTALLATION CHECKOUT 3-1. Introduction

Each rad~oIS adjusted and tested before shipment. However, it is recommended that recerver and trans- mitter operation be checked for proper operatron be- fore ~nstallat~on.

3-2.Testing

The radio should be tested complete with all cabl~ng and accessories as they wrll be connected In the f~nal installatron. Transmrtter frequency, d e v ~ a t ~ o and, power p ~ t p ushouldt be checked, as should recelver

~g n ~ j t i v i t ysquelch, operation, and audio output, 'Q~~equiprnentoperation should be verif~ed.

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Kenwood TK-940 service manual General, Testing

TK-940 specifications

The Kenwood TK-940 is a highly regarded mobile two-way radio that has earned a reputation for its ruggedness, reliability, and excellent communication capabilities. Designed for professionals in various sectors such as public safety, transportation, and construction, the TK-940 incorporates advanced technologies to meet the demanding needs of users in the field.

One of the standout features of the TK-940 is its robust design, which complies with military specifications for durability. Its construction allows it to withstand harsh environmental conditions, making it suitable for outdoor and challenging work environments. The radio is also equipped with a water-resistant casing, ensuring that it can function reliably even in wet conditions.

The TK-940 operates in the VHF frequency range, providing wide coverage and strong signal penetration. With a power output of up to 110 watts, users can achieve long-range communication, essential for coordinating activities over large areas. The radio supports both analog and digital modes, allowing seamless integration into various communication systems while maintaining high audio clarity.

Another significant feature of the TK-940 is its enhanced audio quality. The radio is equipped with Kenwood's advanced noise cancellation technology, which minimizes background noise and ensures clear voice communication even in noisy environments. The audio output is powerful and adjustable, catering to individual user preferences.

Moreover, the TK-940 supports a variety of signaling options, includingDTMF, MDC-1200, and 2-Tone/5-Tone signaling, facilitating efficient communication. These signaling features enhance interoperability with other communication devices and systems, allowing users to communicate seamlessly with teams or dispatch centers.

Kenwood has also incorporated user-friendly functionalities into the TK-940. It boasts an intuitive user interface with programmable buttons, enabling quick access to essential features. The large, backlit display provides clear visibility and is easy to read in various lighting conditions.

The TK-940 is designed with safety in mind, featuring emergency alerts and lone worker protection, ensuring users can communicate their status in critical situations. Overall, the Kenwood TK-940 is a powerful and versatile mobile radio that combines durability, advanced technology, and user-friendly features, making it an ideal choice for professionals who require reliable communication in the field.