What is Yaesu System fusion and whats the difference between it and Dstar?

Yaesu System Fusion and D-STAR are two different digital voice and data communication protocol is used in amateur radio. Yaesu System Fusion, also known as C4FM, is a digital voice and data communication protocol developed by Yaesu. It uses a 4-level frequency shift keying (FSK) modulation scheme and provides features such as voice encryption, GPS location reporting, and group communication.

Yaesu System Fusion supports both analog FM and digital modes, making it backward-compatible with analog radios.

D-STAR, on the other hand, is a digital voice and data communication protocol developed by the Japan Amateur Radio League (JARL). It uses a 4-level differential quadrature phase shift keying (DQPSK) modulation scheme and provides features such as voice encryption, GPS location reporting, and text messaging. D-STAR does not support analog FM, but it is backward-compatible with analog radios that have a D-STAR adapter.

The main differences between Yaesu System Fusion and D-STAR are the modulation scheme used and the backward-compatibility with analog FM. Yaesu System Fusion uses FSK modulation, while D-STAR uses DQPSK modulation. Additionally, Yaesu System Fusion supports both analog and digital modes, while D-STAR only supports digital mode.

Ultimately, the choice between Yaesu System Fusion and D-STAR comes down to personal preference and availability of equipment in your area. Both protocols offer reliable and efficient digital communication for amateur radio operators.

What is the advantage of one or other? D-Star or Yaesu System Fusion?

When considering the advantages of D-STAR versus Yaesu System Fusion (C4FM), it's important to keep in mind that both systems are designed to provide reliable and efficient digital communication for amateur radio operators. Each system has its own strengths and weaknesses, and the choice between the two will depend on the user's specific needs and preferences.

Here are some advantages of each system:

Advantages of D-STAR:

• D-STAR has a larger user base, especially in certain regions, which means there may be more repeaters and nodes available for use.

• D-STAR's digital voice codec is considered by many to have better audio quality compared to Yaesu System Fusion's codec.

• D-STAR supports a wider range of data modes, including GPS position reporting and text messaging.

Advantages of Yaesu System Fusion:

• Yaesu System Fusion is backward-compatible with analog FM, which means it can be used with existing FM radios, whereas D-STAR requires a separate adapter.

• Yaesu System Fusion supports both analog FM and digital modes, which provides flexibility for users who want to transition to digital communication gradually.

• Yaesu System Fusion allows for the use of both C4FM and FDMA (Frequency Division Multiple Access) modes, which means it can support higher data rates for more efficient communication.

Ultimately, the choice between D-STAR and Yaesu System Fusion will depend on factors such as regional availability, personal preferences, and the specific features and capabilities that are most important to the user. Both systems offer reliable and efficient digital communication for amateur radio operators.

Have fun with your radio! Gaz