Overview2-9

The factory provides 20-ampere fuses to power additional amplifiers. Figure 2-9 illustrates the location of these fuses. Power to each output port is also provided through 20-ampere fuses. You can remove the fuses to eliminate power at any of the ports.

Figure 2-9

Fuse locations

Forward Path

The forward path of the amplifier provides an operational gain of 42 dB. The operating gain includes provisions for the insertion loss of the input cable equalizer and required reserve gain to operate the Bode equalizer in the middle of its range.

The standard four output forward path’s electronics consist of four parallel three-stage paths consisting of: (1) pre-amplifier (input hybrid), (2) intermediate amplifier (midstage hybrid), and

(3) power-doubling output hybrid. The first two stages are common to both paths. The pre-amplifier stage provides a low noise figure while the output stage contributes the preferred power at low distortion. The amplifier input provides a facility to install a cable equalizer and a socket for a model JXP-*B attenuator. The attenuator and equalizer are customer installed options.

Several circuits comprise the mid-stage amplifier. The Bode equalizer is a voltage-controlled device that receives its input from the manual gain control, the automatic drive unit (ADU-*), the QAM automatic drive unit (QADU-*), or the thermal drive unit (TDU). Following the Bode board, the BDR controls response flatness and provides equalization and a JXP pad facility adjusts the RF level into the mid-stage hybrid amplifier. Because these losses are located interstage, the noise figure is only significantly impacted by the insertion loss of the forward cable equalizer or a broadband cable simulator.

To increase tilt after the midstage amplifier, there is a mid-stage equalizer, model MEQ-100-*. Following this MEQ-100-* and various splitters, there are JXP-*B pad sockets leading into the power-doubling output stage. The number of pads depends on the number of outputs configured.

BT100 Installation and Operation Manual

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Motorola BT100 operation manual Forward Path
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BT100 specifications

Motorola has long been a pioneer in telecommunications, and its BT100 model exemplifies the brand's commitment to innovation and reliability in the realm of Bluetooth technology. The Motorola BT100 is a Bluetooth headset that combines sleek design, advanced features, and robust performance, making it an ideal choice for users seeking hands-free convenience.

One of the standout features of the BT100 is its impressive battery life. With a talk time of up to 10 hours, users can engage in long conversations without the constant need to recharge. Additionally, the standby time stretches up to 200 hours, meaning the headset can remain powered for extended periods when not in use. This makes it a great companion for those who are always on the go.

In terms of design, the Motorola BT100 boasts a lightweight and ergonomic structure that ensures comfort during prolonged use. Its adjustable and flexible ear hook allows for a secure fit, accommodating various ear shapes and sizes. The sleek profile of the headset also makes it visually appealing, allowing it to blend seamlessly with any outfit, whether professional or casual.

The sound quality of the Motorola BT100 is another significant aspect that deserves mention. The headset is equipped with noise-cancellation technology, which minimizes background noise and enhances the clarity of voice calls. This feature is particularly beneficial in busy environments or noisy settings, ensuring that users can communicate effectively without distractions.

Connectivity is seamless with the BT100, which utilizes Bluetooth 5.0 technology, providing a stable connection with a range of up to 33 feet. This allows users to move around freely without being tethered to their devices. The headset is compatible with a wide variety of smartphones, tablets, and laptops, making it a versatile accessory for any tech-savvy individual.

Moreover, the Motorola BT100 is user-friendly, featuring intuitive controls that enable easy management of calls and media playback. The headset supports voice commands, allowing users to keep their hands free while still accessing essential functions.

Overall, the Motorola BT100 combines functionality, style, and cutting-edge technology. Its impressive battery life, comfort-oriented design, exceptional sound quality, and seamless connectivity make it an ideal choice for anyone looking for a reliable Bluetooth headset. Whether for business, leisure, or everyday use, the BT100 stands as a testament to Motorola's expertise in crafting high-quality telecommunications devices.
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