DUAL TONE MULTI-FREQUENCY (DTMF) FUNCTIONS

The keys on the keypad also function as DTMF keys; the

12keys found on a push-button telephone plus 4 additional keys (A, B, C, D). This transceiver provides

10dedicated memory channels. You can store a DTMF number (16 digits max.) with a memory name (8 digits max.) in each of the channels to recall later for a quick call.

Some repeaters in the U.S.A. and Canada offer a service called Autopatch. You can access the public telephone network via such a repeater by sending DTMF tones. For further information, consult your local repeater reference.

MANUAL DIALING

Manual Dialing requires only two steps to send DTMF tones.

1Press and hold the PTT switch.

2Press the keys in sequence on the keypad to send DTMF tones.

• The corresponding DTMF tones are transmitted.

Freq. (Hz)

1209

1336

1477

1633

 

 

 

 

 

697

1

2

3

A

 

 

 

 

 

770

4

5

6

B

 

 

 

 

 

852

7

8

9

C

 

 

 

 

 

941

 

0

 

D

 

 

 

 

 

■TX Hold

This function makes the transceiver remain in transmit mode for 2 seconds after you release each key. So you can release the PTT switch after beginning to press keys.

1 Press [MENU] to enter Menu mode.

2 Press [1], [3], [3] to select “1–3–3 (TX HOLD)”.

3Press [UP]/ [DWN] to switch the function ON (or OFF).

4Press [OK] to complete the setting.

5Press [MENU] to exit Menu mode.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

41

Page 46 Page 48
Page 47
Image 47
Kenwood TH-D7E, TH-D7A Dual Tone MULTI-FREQUENCY Dtmf Functions, Manual Dialing, Freq. Hz 1209 1336 1477 1633
Page 46 Page 48

TH-D7E, TH-D7A specifications

The Kenwood TH-D7A is a sophisticated handheld transceiver designed especially for amateur radio enthusiasts. It combines advanced features with user-friendly operation, making it a popular choice among both beginners and seasoned operators.

One of the standout features of the TH-D7A is its dual-band capability, allowing users to operate on both the 2-meter (144 MHz) and 70-centimeter (440 MHz) bands. This dual-band functionality gives operators increased flexibility and access to a wider range of communication channels. Additionally, the transceiver supports the simultaneous transmission and reception of two different frequencies, allowing for efficient monitoring of multiple communications.

The TH-D7A is equipped with an impressive 1,000 memory channels, which can be organized into 100 memory groups. This allows users to store a vast amount of frequencies and access them easily when needed. The transceiver also provides a wide frequency coverage, extending from 144 to 148 MHz and from 430 to 450 MHz in the VHF and UHF bands, respectively.

Another remarkable feature of the TH-D7A is its built-in Automatic Packet Reporting System (APRS) capabilities. This technology enables users to share real-time location data, send and receive messages, and provide status updates, making it an invaluable tool for outdoor activities and emergency communication.

In terms of construction, the TH-D7A features a durable and compact design, making it suitable for both portable and mobile use. The large, easy-to-read LCD display provides clear visibility in various lighting conditions. Additionally, the transceiver supports a variety of advanced voice modes, including FM, AM, and SSB (Single Side Band), offering a versatile communication experience.

The TH-D7A also incorporates a wide range of digital modes, enhancing its operational capabilities. With the included programming software, users can easily customize their settings, manage memory channels, and update firmware, ensuring the transceiver remains compatible with evolving technologies.

Power management is another highlight, as the TH-D7A provides adjustable output power levels, enabling users to conserve battery life when needed. Overall, the Kenwood TH-D7A is a feature-rich handheld transceiver that combines robust performance with innovative technology, making it a top choice for amateur radio operators seeking reliable communication in diverse environments. Its versatility, combined with its intuitive design, ensures it meets the needs of users across all experience levels.
Top Page Image Contents