PREPARATION FLOW

1

The following steps should guide you to a good start of

packet operation. The shaded steps indicate operations

2

on your personal computer. First connect the

 

3

transceiver to the personal computer {page 53}.

4

Note: You may switch Battery Saver OFF {page 49} to prevent the initial

5

portion of a received packet from being missed.

 

6q Install an appropriate communications program on

7the personal computer.

8• A variety of freeware or shareware programs can be obtained in various ways. Consult your reference

9material or other “packeteers”.

10

11 w Initiate the communications program and set the

yTo select 9600 bps as the transfer rate from/to the target station, type HBAUD (or HB) 9600 and press [Enter] or [Return]. The default is

1200 bps.

•You must select the same transfer rate as the target station.

uType MYCALL (or MY) then your call sign (9 digits max.) and press [Enter] or [Return] to set your call sign on the TNC.

• You cannot use the default setting (NOCALL).

i Tune to an appropriate frequency.

• First you may want to monitor packets which are

transmitted among other stations. When packets

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following parameters on the personal computer:

• Transfer rate (TNC <–> Computer): 9600 bps

are received, text appears and the computer screen

scrolls.

13

• Data length: 8 bit

 

14

•

Stop bit: 1 bit

15

•

Parity: Non

•

Flow control: Xon/Xoff

 

16

17e Access Menu 1–4–1 to select band A or B as the

18data band {page 55}.

19r Press [TNC] to switch ON the TNC.

20

• “ ” appears.

21

22t Press [TNC] again to enter Packet mode.

23• “PACKET” also appears.

oTo connect with the target station, type CONNECT (or C) then its call sign and press [Enter] or [Return].

•When a linkage is established, a message which informs you of it appears on the computer screen;

on the transceiver display, “ ” appears.

•If packets from other stations keep your squelch open, adjust the squelch level in advance. The TNC cannot transmit in such a situation.

!0Send appropriate commands and, if necessary, messages to the target station via the TNC.

54

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Kenwood TH-D7A Preparation Flow, Following steps should guide you to a good start, Transceiver to the personal computer
Page 59 Page 61

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.
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