Installing the Coaxial Cables

2STARLINE

Connections to the housing are made using standard KS-type housing port entry connectors. Pin-type connectors with a nominal center conductor diameter of 0.067 inches are required. The following table provides the center conductor pin length for the various amplifiers:

Amplifier models	Pin length (inches)
BLE/, MB/,	1.50 minimum to 1.65 maximum
BT/, MBE/

length

Use a torque wrench or Phillips screwdriver to tighten the center conductor seizure screw to a torque of 12 in-lbs.

Powering the Amplifier

For optimal operation, verify that the ac input from the feederline to the power supply is between 38 and 90 Vac (rms) with a line frequency of 50 or 60 Hz. The waveshape of the input voltage must be quasi-squarewave.

The power supply provides the additional feature of a two position (LO and HI) selector that sets the startup voltage of the power supply. The startup voltage is 38 Vac for the LO position and 55 Vac for the HI position. All units are shipped with the selector set in the LO position. The LO position is used with 60 Vac systems where 38 Vac startup voltage is required. For systems operating at 90 Vac, the selector can be in the LO or HI position. Note that changing the selector does not change the upper voltage limit but affects only the startup voltage. The voltage selector should be switched only if the power supply approaches its maximum load rating.

There is no damage to the amplifier if the jumper is not changed. However, changing the jumper ensures that the dc supply does not turn on until the proper input voltage level is reached — either 38 Vac or 55 Vac. This prevents excessive loading of the system power supply during turn-on after a system shutdown.

DANGER!

Voltages up to 90 Vac are accessible. To avoid a shock hazard, confirm that the STARLINE amplifier is not powered before removing the cover or replacing the fuses.

To power the amplifier:

1Set the power supply jumper for 90 Vac operation if required by your system.

2Determine which fuses should be installed to route power to the appropriate ports.

3Verify that the power supply output voltage is +24 Vdc.

RF Amplifier Quick Start Guide

RF Amplifier specifications

Motorola RF Amplifiers are integral components in radio frequency applications, known for their reliability and superior performance across various telecommunications platforms. These amplifiers are designed to enhance the strength of radio signals for wireless communications, ensuring clear and stable transmission over longer distances.

One of the key features of Motorola RF Amplifiers is their ability to deliver high linearity. High linearity is crucial in reducing distortion in transmitted signals, which is especially important in applications like mobile communications, where signal clarity can significantly affect call quality and data transmission. This characteristic allows for greater efficiency and effectiveness in systems where multiple signals are present, such as in densely populated urban areas.

Another significant aspect of Motorola RF Amplifiers is their broad frequency range. These amplifiers can operate across various bands, from VHF to UHF and even higher frequencies, making them suitable for diverse applications ranging from public safety communications to broadcast services. The versatility in frequency response adapts to the needs of different devices and systems, making them a preferred choice for engineers and manufacturers alike.

The technology underpinning Motorola RF Amplifiers includes advanced materials and integrated circuit designs that allow for higher thermal efficiency and reduced power consumption. This is particularly important in battery-operated devices where energy efficiency leads to extended operational life. Additionally, the compact packaging of these amplifiers ensures that they can be easily integrated into a variety of devices without requiring excessive space.

Motorola also places a strong emphasis on durability and ruggedness in their RF Amplifiers. Many models are engineered to withstand harsh environmental conditions, making them suitable for outdoor installations and challenging applications. Their ability to perform consistently in extreme temperatures, moisture, and vibration enables deployment in critical infrastructure contexts like base stations and emergency services.

Moreover, Motorola RF Amplifiers typically include built-in protection features, such as thermal shutdown, over-voltage protection, and automatic gain control. These safeguards enhance the longevity and reliability of the amplifier, reducing the need for maintenance and offering peace of mind to operators who rely on these systems.

In conclusion, Motorola RF Amplifiers are characterized by their high linearity, broad frequency range, energy efficiency, and rugged durability. With advanced technologies and features that ensure optimal performance, they continue to meet the demands of contemporary wireless communication systems, solidifying Motorola’s reputation in the RF engineering field.