Operation with external receiver | Furuno FAX-410 specs

２.５ Operation with external receiver

(1) External receiver

When an external receiver is used, it should have a local oscillator with very good frequency stability. The A1 detected beat, a low-frequency output, can be monitored with the unit when the signal is supplied through receiver jack of the external receiver. If the signal is supplied from the speaker terminal, it is suggested to use a dummy resistor and supply signal from both ends of the dummy resistor. The signal enters the input terminal (EXT-IN) on the back of the unit and should be 50mV or larger at the input terminal. When an external receiver is of ordinary type, there will be no problem of excessive input since there is a protection circuit inside the unit. However, if direct current is superposed, be sure to input it through a non-polarized capacitor of about 1μF.

(2)Operation

a)Beat adjustment

When using an external receiver whose beat frequency is adjustable within a range of ±2kHz or more by means of the beat knob, set the frequency dial so as to maximize the deflection of the receiver’s “S” meter, and adjust the beat knob so that the center LED of the tuning indicator of the unit is lit. When a signal from station with ISB communication from a U.S. Navy station, e.g., Guam, Pearl Harbor or San Francisco, is received, sometimes an adjustment of the frequency is necessary with a variable condenser or spread variable condenser, because the frequency may shift within a range of ±2kHz from the specified frequency of the station.

b)Band width

When noise is low, a wide bandwidth is advantageous to have good picture quality. However, a narrow bandwidth down to 1kHz is preferable in a noisy condition.

c)Selection of external receiver

Refer to 1.4.1 to use an external receiver and also to return to the internal receiver.

d)Recording

Refer to 1.3.3 for recording operations and for reverse reception. In reverse reception, set the external receiver to the FBO, LSB or USB mode similarly.

NOTE
BFO	: Beat frequency oscillator	LSB	:	Lower side band
USB	: Upper side band	ISB	:	Independent side band
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FAX-410 specifications

The Furuno FAX-410 is a state-of-the-art satellite fax receiver designed to deliver high-quality weather and forecasting information specifically for maritime applications. It is one of the leading devices in its category, bringing a blend of advanced technologies, user-friendly features, and reliable performance that caters to the needs of professional mariners.

One of the main features of the Furuno FAX-410 is its ability to receive weather fax images from various satellite and radio sources. This capability ensures that users get real-time updates on weather conditions, which is crucial for safe navigation at sea. The FAX-410 supports a range of communication formats, enabling it to receive data from international, national, and regional weather services.

Equipped with a large 4.3-inch color LCD display, the FAX-410 makes it easy to view received weather charts and other vital information. The user interface is designed for simplicity, allowing operators to navigate through menus and settings quickly. The unit also supports various languages, enhancing its usability for a diverse clientele.

In terms of technology, the FAX-410 utilizes advanced signal processing that enhances the clarity and quality of received images. This technology ensures that even in challenging conditions, users get clear and precise weather information. The device's built-in thermal printer provides crisp output, allowing mariners to have hard copies of critical weather data on hand.

One of the standout characteristics of the Furuno FAX-410 is its robust build quality, ensuring durability in the harsh marine environment. The unit is designed to withstand the rigors of life at sea, including exposure to saltwater and extreme temperature variations.

Additionally, the FAX-410 is compatible with Furuno's range of radar and navigation systems, allowing for seamless integration into existing onboard systems. This feature enhances situational awareness by providing a comprehensive overview of both navigation and weather data on a single platform.

The Furuno FAX-410 is ideal for commercial vessels, fishing fleets, and recreational yachts alike, where timely access to weather information can significantly affect safety and voyage planning. With its combination of advanced features, rugged design, and easy-to-use interface, the FAX-410 stands out as a leading choice for maritime professionals seeking reliable weather fax solutions.