2.4 Adjustment at Installation

The PM-30 monitors the performance of a radar set by comparing its present performance with the initial performance achieved at installation. In order to establish good reference of comparisons, and eventual high-accuracy indications, the PM-30 must be properly adjusted at installation.

Adjustment Procedure

1.Confirm the front cover of the Performance Monitor is firmly secured with 8 fixing screws. (If not, microwave leakage will occur, resulting in misadjustment of attenuator ATT02 and eventual poor indicating accuracy.) Note that it is prohibited to open the front cover.

2.Remove the cap bolts of attenuators ATT01 (RX) and ATT02 (TX) provided on the top side of the Performance Monitor.

3.Put the radar in transmit mode.

4.Set the radar controls as follows:

RANGE:

24 nm

BRILLIANCE:

For optimum picture brightness (around 2 o’clock position)

GAIN:

For a slight noise level on the display (around 2 o’clock position)

STC/FTC:

Minimum (fully CW)

TUNING:

Best tuning point

SCANNER:

ON (antenna rotating)

5.Activate the Performance Monitor by operating the switch on the radar display, or by turning on the POWER switch of the Switch Box. Wait a while (about one minute) until the arc patterns displayed on the radar completely stabilized.

6.Operating the VRM control, measure the range to the innermost arc displayed on the radar screen.

7.Adjust attenuator ATT01 of the receiving circuit so that the innermost arc is displayed within the range 12 ±0.5 nm. Clockwise rotation of ATT01 increases the range; counterclockwise rotation decreases it.

Note: Arcs may disappear or freeze when the attenuator setting is out of the adjustment range, and adjustment of the attenuator alone cannot clear the problem. In this case, turn the attenuator fully counterclockwise, turn it about 1 1/2 turns and then turn the power off and on again. Adjust the attenuator slowly in about 5 degree turns; a slight turn yields large change.

8.Adjust transmitting circuit’s attenuator ATT02 so that the outermost arc (4th from inside) is slightly visible. Clockwise rotation of ATT02 increases the intensity of the arcs; counterclockwise rotation decreases it.

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Furuno PM30 manual Adjustment at Installation
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PM30 specifications

The Furuno PM30 is an advanced portable marine multi-function display that sets new standards in the world of marine electronics. Designed for both recreational and commercial vessels, the PM30 integrates powerful technologies and a user-friendly interface that make navigation and situational awareness seamless and efficient.

One of the standout features of the Furuno PM30 is its impressive display. Boasting a high-resolution screen, it provides crystal-clear visuals even in bright sunlight, ensuring that users can view critical information at a glance. The intuitive touchscreen interface allows for quick access to vital data, enabling users to navigate menus and adjust settings with ease.

The PM30 incorporates Furuno's state-of-the-art sonar technology, offering the ability to visualize underwater terrain and detect fish with remarkable clarity. Whether you're a fisherman seeking the best catch or a recreational boater exploring with friends, the PM30’s sonar capabilities enhance your experience on the water. Its fish-finding functionalities include advanced algorithms for precise tracking and discrimination of different species.

In terms of connectivity, the Furuno PM30 is equipped with multiple communication ports, allowing for integration with additional marine devices. This includes GPS, AIS, and radar systems, providing a comprehensive suite of navigational tools in one compact unit. The ability to connect with other devices enhances situational awareness and reinforces safety on the water by displaying critical information from various sources in a single interface.

Durability is a critical consideration for marine electronics, and the PM30 is built to withstand harsh marine environments. It features a rugged design that is resistant to water and fluctuations in temperature, ensuring reliable performance even under challenging conditions. Additionally, the robust battery life allows for extended use without worrying about power drains, making it ideal for long outings and extended trips.

Overall, the Furuno PM30 is a powerful marine multi-function display that combines cutting-edge technologies with user-centric design. Its combination of high-resolution display, advanced sonar features, versatile connectivity, and durable construction makes it an excellent choice for marine enthusiasts who demand quality and reliability on the water. Whether for fishing adventures, leisure cruises, or professional navigation, the PM30 provides the tools necessary to enhance any maritime experience.
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