USING CTCSS

11 Press [A/B] to select band A or B.

2• If necessary, press [F], [A/B] to recall the sub-band.

32 Press [F], [3] to switch the CTCSS function ON (or

OFF).

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

• “CT” appears when CTCSS is ON.

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STA CON PACKET96 BCONDUP

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8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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10You will hear calls only when the selected tone is

11received. To answer the call, press and hold the PTT

12switch, then speak into the microphone.

13Note:

You cannot use the CTCSS and Tone functions simultaneously.

14Switching the CTCSS function ON after activating the Tone function

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deactivates the Tone function.

If you select a high CTCSS frequency, receiving audio or noise that

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contains the same frequency portions may cause CTCSS to function

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incorrectly. To prevent noise from causing this problem, select an

 

appropriate squelch level {page 8}.

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19

20

21

22

23

CTCSS FREQ. ID

This function scans through all CTCSS frequencies to identify the incoming CTCSS frequency on a received signal. You may find it useful when you cannot recall the CTCSS frequency that the other persons in your group are using.

1Press [F], [4] (1 s) to activate the function.

• The CTCSS function is switched ON.

STA CON PACKET96 BCONDUP

5 7 9

If you access “F–4 (CTCSS FREQ)” using [UP]/ [DWN] in Function Select mode, press [OK] (1 s) to activate the function.

To reverse scan direction, press [UP] (upward scan) or [DWN] (downward scan).

To quit the function, press [ESC].

When the CTCSS frequency is identified, the identified frequency appears and blinks.

2Press [OK] to program the identified frequency in place of the currently set CTCSS frequency.

The previous frequency display is restored with the CTCSS function remained ON.

Press [ESC] if you do not want to program the identified frequency.

Press [UP]/ [DWN] while the identified frequency is blinking, to resume scanning.

Note: Received signals are audible while scanning is in progress.

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Image 48
Kenwood 440 MHz TH-D7A, 144 Using Ctcss, Ctcss FREQ. ID, Press F, 3 to switch the Ctcss function on or, Off

144, 440 MHz TH-D7A, 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.