APPENDIX

TNC COMMANDS LIST

The commands supported by the built-in TNC are listed below. You must enter a space between a command name (or short-form) and a parameter, or between two parameters; ex. AU OFF, BEACON EVERY 18.

Command Name

Short

Default

Parameter

Description

 

 

 

 

 

AUTOLF

AU

ON

ON/ OFF

When ON, sends a line feed (LF) to the computer after each

carriage return (CR).

 

 

 

 

 

 

 

EVERY/

If set to EVERY, sends a beacon packet at intervals of the

 

 

 

specified period (n). If set to AFTER, sends a beacon packet

BEACON

B

EVERY 0

AFTER n

only once after the specified period (n). The unit of n is

 

 

 

(n = 0 ~ 250)

 

 

 

 

10 seconds.

BTEXT

BT

—

0 ~ 159

Specifies the content of the data portion of a beacon packet.

characters

 

 

 

 

CALIBRAT

CAL

—

—

Sends a space/mark square wave (50/50 ratio). Enter Q to

exit Calibrate mode and restore the Command mode.

 

 

 

 

CHECK

CH

30

0 ~ 250

Specifies the interval from signal drop-out until execution of

disconnection. The unit of the parameter is 10 seconds.

 

 

 

 

 

 

 

Call1 (VIA

Sends a connect request. Call1 is the call sign of the station

CONNECT

C

—

call2, call3, ...

to be connected to. Call2 to call9 are call signs of stations to

 

 

 

call9)

be digipeated through.

CONVERSE

CONV

—

—

Causes the TNC to enter Converse mode. Press [Ctrl]+[C] to

or K

restore the Command mode.

 

 

 

CPACTIME

CP

OFF

ON/ OFF

When ON and in Converse mode, sends a packet at intervals

of the period determined by PACTIME.

 

 

 

 

CR

CR

ON

ON/ OFF

When ON, appends a carriage return (CR) to all packets to be

sent.

 

 

 

 

DISCONNE

D

—

—

Sends a disconnect request.

 

 

 

 

 

99

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Kenwood TH-D7A instruction manual Appendix, TNC Commands List, Short Default Parameter Description
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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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