OPERATING THROUGH REPEATERS

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Repeaters, which are often installed and maintained by radio clubs, are usually located on mountain tops or

Offset Programming Flow

3other elevated locations. Generally they operate at

4higher ERP (Effective Radiated Power) than a typical station. This combination of elevation and high ERP

5allows communications over much greater distances

6than communications without using repeaters.

7Most repeaters use a receive and transmit frequency

8pair with a standard or non-standard offset (odd-split). In addition, some repeaters must receive a tone from the

9transceiver to allow it to access. For details, consult

10your local repeater reference.

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TX: 144.725 MHz

 

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TX tone: 88.5 Hz

 

RX: 145.325 MHz

TX: 144.725 MHz

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TX tone: 88.5 Hz

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RX: 145.325 MHz

 

 

qSelect a band.

wSelect a receive frequency.

eSelect an offset direction.

rSelect an offset frequency.

(Only when programming odd-split repeater frequencies)

tActivate the Tone function. (If necessary)

ySelect a tone frequency. (If necessary)

If you store the above data in a memory channel, you need not reprogram every time. See “MEMORY CHANNELS” {page 26}.

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Kenwood TH-D7A instruction manual Operating Through Repeaters, Offset Programming Flow
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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.
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