10
D-STAR OPERATION (BASIC)
Unique features of D-STAR
• Easy Cross band operation through a repeater
INTERNET
INTERNET
430MHz
430MHz
CQCQ
CQCQ
IMPORTANT! Before starting D-STAR, the following steps are required�
STEP 1
STEP 2
STEP 3
► You have completed the steps!!
What is D-STAR?
• D-STAR is a digital protocol standard developed by the Japan Amateur Radio League (JARL)� The system
includes the DV mode for Digital Voice and the DD mode for Digital Data communications�
• D-STAR supports a comprehensive repeater system linked through the Internet, enabling you to make QSOs
with stations near or far from your location�
• D-STAR supports the DV mode at 4�8 kbps� Your call sign data, and either a short message, or GPS data can be
transmitted simultaneously with your voice signal�
Advanced Amateur radio technology of D-STAR
The DV mode has a bandwidth of only 6 kHz, compared to 16 kHz for the analog FM mode, with 5 kHz deviation�
D-STAR utilizes the well-known GMSK modulation method that makes very efficient use of occupied bandwidth.
D-STAR (F7W)
10 kHz
10 kHz
20 kHz
20 kHz
D-STAR occupies 10 kHz� The sound quality is
good, even though the bandwidth is narrow�
1200MHz
1200MHz
CQCQ
CQCQ
Enter your call sign (MY) into the transceiver� (p� 10-4)
Register your call sign (MY) to a gateway repeater� (p� 10-5)
Enter your D-STAR equipment into your registration form� (p� 10-5)
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Frequency
6 kHz
6 kHz
10 kHz
10 kHz
10 kHz
10 kHz
10 kHz
10 kHz
20 kHz
20 kHz
• Easy call sign entry with the Repeater list or TX/
RX History
• The Call Sign Capture key
capture easy!
FM (F3E)
10 kHz
10 kHz
20 kHz
20 kHz
The regular FM mode occupies 20 kHz that is
double the bandwidth of D-STAR�
10-2
makes call sign
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Frequency
16 kHz
16 kHz
10 kHz
10 kHz
10 kHz
10 kHz
10 kHz
10 kHz
20 kHz
20 kHz