Operation Flow

1The following steps should guide you to a good start of

uAccess Menu 2–3 to enter latitude and longitude data {page 68}.

APRS operation.

i Access Menu 2–4 to select from 8 position

3q Press [TNC] to switch ON the TNC.

4• “” appears.

w Access Menu 1–4–1 to select band A or B as the

6data band {page 55}.

8e On the data band select the same frequency as

9other stations in your group.

10• You may tune to the frequency of an appropriate digipeater {page 72}.

12Now you are ready to receive APRS data from other

13stations. Refer to “RECEIVING APRS DATA” {page 63}. To transmit your APRS data, proceed to

14step r.

16r Access Menu 2–1 to program your call sign

17(9 digits max.) {page 66}.

19t If you have connected a GPS receiver, access Menu 2–2 and select “NMEA”. The default is

20“NOT USED”.

22y Access Menu 2–5 to select your station icon

23{page 67}.

comments {page 69}.

oIf you want, access Menu 2–6 to enter status text using up to 20 alphanumeric characters {page 70}.

!0If you want, access Menu 2–A to program a group code {page 71}.

!1If necessary, access Menu 2–8 to program a packet path {page 72}.

!2Access Menu 2–9 to select the operation method for transmitting beacons {page 74}.

!3If you selected “PTT” or “AUTO” in step !2, access Menu 2–7 to select the interval for transmitting beacons {page 75}.

!4Press [BCON]. If you selected “PTT” in step !2, then press and release the PTT switch. See page 74.

Note: When using your personal computer, set the same communication parameters as Packet Operation {page 54}. On the transceiver, press [TNC] twice to enter Packet mode; “PACKET” should appear.

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.

Kenwood 440 MHz TH-D7A, 144 instruction manual Operation Flow

Models: 144 440 MHz TH-D7A TH-D7A

OPERATION FLOW

144, 440 MHz TH-D7A, TH-D7A specifications