OPERATING FEATURES

. GROUP key

Used to select the signal~ngencodeldecode data or squelch adjustment.

-

TONE

GROUP

 

1

None (No decode; squelch can be adjusted.)

--

2

100H: sqilare wave (No decode; squelch can be adjusted )

----

3LTR format' (Decode;squelch cannot be adjusted.)

4QT (67,OHz) (Decode; Squelch cannot be adjusted..)

5QT (151.4Hz) (Decode; squelch cannot be adjusted.)

6QT (210.7Hz) (Decode; squelch cannot be adjusted.)

7DQT (023N) (No decode; squelch cannot be adjusted.)

8DOT (754N) (No decode; squelch cannot be adjusted.)

*Area : 0. Goto : 12, Home . 12, ID : 47, Free : 25

Table 2

AUX key

When the AUX key is pressed, talk-around is

 

enabled (the "TANindicator appears), and transmission

 

is possible on the receive frequency. When the key is

 

pressed again, talk-around is disabled.

Fj

 

1

SCAN key

When this key is pressed, the squelch is turned off.

 

If a carrier is not present, white noise is heard. The

 

"BUSY indicator appears.

 

Transmission

 

The microphone PTT key is used t o start

 

transmission. When the frequency and signaling have

 

been selected wirh the SYSTEM and GROUP keys,

 

transmission begins and the "TX" indicator appears.

 

The time-out-timer does not work.

5-2.Panel Tuning Mode

This mode can be inhibited by programming. The following can be adjusted with the front keys:

Squelch level QT fine deviation

. DQT fine deviation LTR ID fine deviation RF power

DQT balance Maximum deviation Frequency (TX)

The mode is entered when the GROUP DOWN key is held down, the power turned on, and the key kept down for t w o more seconds. The display changes from "TUNING"to "800MHz" (TK-940)or "900NIHzU(TK- 941), and then back to the systemlgroup number indication.

Select the frequency to be adjusted by pressing the SYSTENI key when the systemlgroup number is being displayed, then press the SCAN key. Adjustment mode is entered and the adjustment level can be varied between 1 to 256.

SYSTEM key

Used t o select the frequency or items to be adjusted

GROLIP key

. Used to select signaling encodeldecode data or the adjustment level.

AUX key

Used to determine the adjustment level. Select the level with the GROUP key and then press the AUX key. The adjustment level is written into the internal serial

EEPROM.

SCAN key

Used t o s w ~ t c hbetween adjustment frequency variable mode and adjustment level (item) mode.

Volume key

Used to vary the volume or adjust the AF power level.

Page 14 Page 16
Page 15
Image 15
Kenwood TK-940 service manual Group key, Scan key, Transmission, Panel Tuning Mode, Grolip key, Volume key
Page 14 Page 16

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.
Top Page Image Contents