1. OPERATION

1.13ISB Function

The frequency of certain SSB multiplex broadcasts (fax and teletype) randomly shifts 1-2 kHz. To receive these broadcasts steadily, enable the ISB* function to track frequency.

*ISB is a single sideband mode which is used with some SSB transmissions. Normally each side- band carries identical information, but ISB modulates two different input signals - one on the upper sideband, the other on the lower sideband.

1.13.1Enabling, disabling ISB function

1. Press the PRG key followed by the 6 key.

ISB +0.0kHz : OFF

1-OFF 2-ON 3-QTY

2.Press the 1 or 2 key to disable or enable the ISB shift function, respectively.

3.Press the E key.

4.Press the C key.

When the ISB function is enabled, the ISB shift width set in the procedure below is applied to the frequency shown on the frequency display. Further, the frequency shift is applied to ALL channels.

1.13.2Set ISB shift width

Set the ISB shift width (from nominal frequency) to use as follows:

1.Press the PRG key followed by the 6 key.

2.Press the 3 key to choose QTY.

SET

ISB in

2FIGS

+/-

by

KEY

 

 

 

3.Press the REV/z key to display the + or – sign as appropriate.

4.Enter ISB shift width in two digits, using the numeric keys.

5.Press the E key.

6.Press the C key to return to the standby display.

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Furuno FAX-408 manual ISB Function, Enabling, disabling ISB function, Set ISB shift width

FAX-408 specifications

The Furuno FAX-408 is a state-of-the-art weather fax receiver that serves as an essential tool for maritime operations. Designed to provide reliable reception of fax weather information, the FAX-408 enhances navigational safety by delivering crucial data to seafarers. This sophisticated device is ideal for commercial ships, fishing vessels, and recreational craft, ensuring that users remain well-informed about weather conditions at sea.

One of the standout features of the FAX-408 is its advanced digital signal processing capabilities. This technology allows for improved reception and clearer images, even in challenging environmental conditions. The internal 3D processor minimizes noise and optimizes signal clarity, providing users with accurate and timely weather updates. Additionally, the receiver is compatible with various communication methods, including SSB (Single Sideband) radios and satellite systems, allowing for versatile use across different maritime applications.

The FAX-408 boasts an intuitive user interface, making it easy for mariners to operate. The large, high-resolution screen offers clear visibility of received fax images, and the device supports various printing options, including direct connection to an onboard printer. Users can effortlessly manage their weather data, selecting information relevant to their specific voyage plans.

Another major characteristic of the FAX-408 is its memory storage capacity, which allows for the storing of multiple weather charts. This feature enables users to access historical data and analyze weather patterns for better decision-making. Moreover, the unit is capable of automatic frequency scanning, ensuring that it remains tuned to the best available channels for optimal reception.

The Furuno FAX-408 is also designed with durability and reliability in mind. Built to withstand harsh marine environments, the device is resistant to saltwater and humidity, ensuring it remains functional during extensive use at sea. With its compact size and lightweight design, the FAX-408 is easy to install and transport, making it an excellent addition to any vessel’s equipment.

For mariners seeking a dependable and feature-rich fax weather receiver, the Furuno FAX-408 stands out as an industry leader, combining cutting-edge technology with user-friendly design to enhance maritime safety and performance. Whether navigating stormy seas or planning a long voyage, the FAX-408 is an indispensable tool for staying informed and prepared for the challenges of marine travel.