Chapter 4 Performance Checks

4.1General

These radios meet published specifications through their manufacturing process by utilizing high- accuracy laboratory-quality test equipment. The recommended field service equipment is as accurate as the manufacturing equipment with few exceptions. This accuracy must be maintained in compliance with the manufacturer’s recommended calibration schedule.

 

30 dB Pad

Service Monitor or

 

Counter

 

Transmit

 

 

Power Cable

30 dB Pad

Wattmeter

RLN5410

BNC

 

 

 

 

RF Generator

 

 

Receive

 

 

 

 

 

 

 

 

 

 

 

 

RF Adaptor

 

 

 

Power

 

 

 

 

 

Radio

5886564Z01

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Supply

 

 

 

 

 

 

 

 

 

 

Audio In

Tx

 

 

 

 

 

 

 

 

 

Audio Generator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Battery

Test Box

 

 

RLN4460

Rx

 

Eliminator

 

Sinad Meter

 

Program/Test Cable

 

 

 

 

 

AAPMKN4004

 

AC Voltmeter

 

 

 

 

 

Tx Data

 

 

RIB

Rx

 

 

RLN4008

Data

 

 

Gnd

 

 

 

 

Computer Interface

Cable

RIB Power Supply

Figure 4-1. Radio Tuning Setup

4.2Power-Up Self Test

Applying power to the radio by using the on/off volume control, starts a self-test routine which checks the RAM, EEPROM hardware and EEPROM checksum. Pressing and holding SB1 while turning on the radio causes the self-test routine to check for the ROM checksum as well. If these checks are successfully completed, the radio will generate the Self-Test Pass Tone. If the self-test is not successful, a Self-Test Fail Tone is heard.

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Motorola EP450 service manual Performance Checks, General, Power-Up Self Test

EP450 specifications

The Motorola EP450 is a robust and reliable two-way radio that has made a significant impact in the world of professional communications. Known for its solid construction and exceptional performance, the EP450 is a popular choice among various industries, including security, transportation, and event management.

One of the standout features of the Motorola EP450 is its impressive audio quality. Equipped with advanced audio processing technologies, the radio offers clear and crisp sound, ensuring effective communication even in noisy environments. This feature is particularly beneficial for users who work in fields where situational awareness and timely communication are crucial.

The EP450 operates on both VHF and UHF frequency bands, making it versatile for various communication needs. With 16 channels and a wide frequency range, users can easily switch between channels to avoid interference and ensure secure communications. Additionally, the radio offers a programmable feature, allowing users to customize button functions and settings, which enhances the overall user experience.

The battery life of the EP450 is another notable characteristic. It comes powered with a long-lasting rechargeable battery that provides extended usage on a single charge. This ensures that users can rely on the device throughout their shifts without concerns about running out of power. Furthermore, the EP450 features a battery save mode that helps conserve energy when the radio is not in use.

In terms of design, the Motorola EP450 is built to withstand tough environments. Its rugged housing is dustproof and can withstand exposure to water, making it suitable for outdoor use. Additionally, the radio's user-friendly interface includes a large display and oversized buttons, allowing users to operate it easily even with gloves or in challenging conditions.

Furthermore, the EP450 supports various accessories, such as headsets and external microphones, enhancing usability and flexibility in various operational scenarios. This adaptability allows users to customize their communication solutions based on specific needs.

In conclusion, the Motorola EP450 stands out for its superior audio quality, versatile frequency operation, long-lasting battery life, and rugged design. These features make it an indispensable tool for professionals who require reliable communication in demanding environments, proving its value across a multitude of industries.