Auto TEL, Audible User Feedback Tones, Delay tone

OPERATING FEATURES

3-19. AUTO TEL

A telephone interconnect call can be made by sim- ply pressing the AUX (Auxiliary) key by assigning this feature to the key. This feature accesses the TEL channel of the available system automatically.

When the AUX key is pressed, a queue tone is output, and the "AUTO TEL' appears on the alphanumeric display along with a flashing handset indicator ( 3 ) to indicate that this mode has been entered. If the TEL ID is set for the revert system, the TEL channel of that system is accessed. If all TEL channels are busy, an attempt is made to access the TEL channels of another system in which the TEL ID code has been programmed. It is repeated for 60 seconds until the.access succeeds. If the access succeeds, a dial tone returns from the repeater. If the AUX key is pressed again when the queue tone is sounding, this mode is canceled.

If the access fails after 60 seconds, a deny tone is output and this mode is terminated. When the talk ends, the revert system/group returns. When the scan mode is effective, the scan resumes. The AUTO TEL feature can be programmed to turn on or off for each system.

3-20. Audible User Feedback Tones

The transceiver outputs various combinations of three tones (high, mid, and low) to notify the user of the transceiver operating state. The main tones are

Delay tone

Th~stone is output when the P n button is pressed and the repeater is accessed three times or more to indicate connection with the repeater is delayed. This tone is the same as the Busy tone. (It is not output of CLEAR TO TALK has been set to YES.)

Proceed tone

This tone is output when the P n button is pressed, transmiss~onstarts, and the repeater is connected to indicate that the user can talk if the Clear-to-Talk func- tion has been set. (The high tone is output for 100ms.)

Queue tone

This tone is output until the AUTO TEL function is set and the TEL channel is accepted successfully. (The mid tone on for 50ms, off for 50ms, and on for 50ms in 1 second intervals.)

Deny tone

This tone is output if the AUTO TEL function is set, the queue tone is output, but the TEL channel cannot be accessed within 60 seconds. It is similar to the in- tercept tone. (The m ~ toned and low tone are output alternately in 150ms intervals.)

3-21. Clear-to-Talk

This feature can be programmed to turn on or off.

listed below. The h~ghtone is 14601iz, the mid tone is 980Hz, the and low tone is 730Hz.

Busy tone

This tone is output when the P~TTbutton 1s pressed but no repeater is available and transmission is not pos- sible. It is output until transmission is enabled while the P n button is held down and transmission starts, or until the PTT button is released. (The mid tone and !ow tone are output alternately in 150nis intervals.)

Intercept tone

This tone indicates that the'transceiveris out of range. It indicates that the P n button is pressed, and transmission has started, but the repeater cannot be connected and talk~ngIS not possible. It is output until the PTT button is released, (The mid Tone and low tone are output alternately in 200nis intervals.)

Clear-to-talk operation (Set to ON)

'If a dispatch ID is used and the PTT button is pressed when no repeater can transmit, a busy tone is not output (it is output when an interconnect ID is used). If transmission becomes possible while the PTr button is held down, transmission starts.

tput. If transmis- f'nbutton is held

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.