SYNC OUTPUTS (1 to 4)

These signals are optically isolated and require the user to provide a high voltage level (USER VCC) and signal common (USER GROUND). USER VCC can be from 5V to 24V. ICC is a function of USER VCC and load resistor R. An example of the functional circuit is indicated in the following diagram.

3.3V CAMERA LOGIC SIGNAL

IF = 5mA

442R

100K

1

2

TLP281-4GB

16

15

CAMERA

USER TRIGGER

CIRCUIT

CIRCUIT

 

 

 

5V TO 24V

 

 

 

VCC-USER

PIN 10. USER VCC

 

 

 

 

 

 

 

 

 

 

 

 

SYNC OUT

R

GND-USER

V LOAD

CAMERA

LOGIC SIGNAL

SYNC OUT

SIGNAL

T3

T1

T2

T4

Various USER VCC values and load values for the above circuit are indicated in the following table:

USER

USER

R

V LOAD

R POWER

T1

T2

T3

T4

VCC

ICC

LOAD

 

DISSIPATION

 

 

 

 

5V

8mA

500￿

4.1V

32mW

1.5µs

6.5µs

2µs

14µs

 

 

 

 

 

 

 

 

 

5V

4.8mA

1K￿

4.8V

23mW

1.5µs

5µs

17µs

40µs

 

 

 

 

 

 

 

 

 

12V

9.2mA

1.2K￿

11.2V

101mW

1.5µs

11.2µs

2µs

20µs

 

 

 

 

 

 

 

 

 

12V

4.9mA

2.4K￿

11.8V

58mW

1.5µs

8.5µs

17µs

55µs

 

 

 

 

 

 

 

 

 

24V

9.5mA

2.4K￿

23.2V

217mW

1.5µs

22µs

2µs

37µs

 

 

 

 

 

 

 

 

 

24V

5mA

4.8K￿

23.8V

120mW

1.5µs

12µs

17µs

105µs

 

 

 

 

 

 

 

 

 

GX3300 Technical Manual

Page 13

Page 13
Image 13
Allied International GX3300C manual 8mA 500 32mW 14 µs

GX3300C, GX3300 specifications

The Allied International GX3300 and GX3300C are versatile marine radios that bring a wealth of features and advanced technology to ensure seamless communication on the water. Designed with both recreational and professional mariners in mind, these devices enhance safety and connectivity through a user-friendly interface and robust functionality.

One of the standout features of the GX3300 series is its dual watch function, which allows users to monitor two channels simultaneously. This is particularly useful for navigating busy waterways or when keeping an ear on emergency frequencies. The radios come equipped with a powerful 25W output, ensuring clear communication over long distances.

Both models incorporate digital selective calling (DSC) capabilities, enabling users to send distress signals and communicate with nearby vessels or coast guards at the touch of a button. The internal GPS receiver is another significant attribute, providing precise location data that ensures mariners can share their position during emergencies or routine communication. This integration of GPS simplifies the process of relaying information verbally, as the device will automatically transmit the vessel's coordinates.

The GX3300C model goes a step further by including a built-in AIS (Automatic Identification System) receiver. This crucial feature allows mariners to receive information about nearby vessels, enhancing situational awareness and safety, especially in congested waters. AIS data displays the position, course, and speed of nearby ships, which aids in collision avoidance and navigation planning.

Both models feature a clear, backlit LCD screen that guarantees visibility under various lighting conditions. The intuitive controls and menu navigation make operating the radios straightforward, even for less tech-savvy users. The rugged design of the GX3300 series ensures durability against harsh marine environments, with water and shock resistance being key characteristics.

Additionally, these radios support an extensive range of frequencies, allowing for worldwide marine communication. With built-in weather channels, users can stay informed about changing weather conditions, which is crucial for safe navigation.

Overall, the Allied International GX3300 and GX3300C radios combine advanced communication technologies with practical features to enhance marine safety and connectivity. Their reliable performance and user-friendly design make them essential tools for anyone operating on the water, ensuring that help is always just a call away.