RECEIVING APRS DATA

Each time new APRS data is received, the frequency display is interrupted to show information as below:

STA CON

96 BCONDUP

5 7 9

Position

comment

(or status text)

The received APRS data may include information on an object such as a hurricane or tornado. In this case, the name of the object appears instead of a call sign.

The transceiver restores the frequency display after approximately 10 seconds pass or when you press any key.

Note: When you receive APRS data that you transmitted, the frequency display is not interrupted. “MY PACKET” will appear at the bottom of the display. This could happen when one or more digipeaters {page 72} are used.

If a received packet does not include new (or proper) APRS data, the frequency display is not interrupted. An indicator such as “dP” appears depending on the types of data. See the table.

STA CON

96 BCONDUP

5 7 9

Indicator

Meaning

What is Included?

 

 

 

 

Duplicate position

Same comment as the

dP

previous one from the

 

comment

same station

 

 

 

 

 

dS

Duplicate status

Status text already

text

received

 

 

 

 

 

Beyond position

Data from a station

>P

outside the selected

limit

 

range {page 75}

 

 

 

 

 

Q ?1

Query

Request for sending

information

 

 

 

 

 

??

Packet that cannot be decoded

 

 

 

1The transceiver automatically transmits the appropriate information in approximately 2 minutes after receiving a request.

Note: The APRS programs for PCs have entry fields for a position comment and status text. The data entered to these two fields are transmitted as separate packets.

This transceiver beeps each time it receives new or duplicate APRS data. You may access Menu 1–5–3 (BEEP) to change this setting. The default is “ALL”.

Selections

Key Pressed

New APRS

Duplicate

Data

APRS Data

 

 

OFF

No beep

No beep

No beep

 

 

 

 

KEY

Beep

No beep

No beep

 

 

 

 

KEY+NEW

Beep

Beep

No beep

DATA

 

 

 

ALL

Beep

Beep

Beep

 

 

 

 

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

63

Page 69
Image 69
Kenwood TH-D7E, TH-D7A instruction manual Receiving Aprs Data, Indicator Meaning What is Included?, New Aprs Duplicate, Key

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.