Motorola BLE100 Amplifier Level Control, Manual Gain Control, Temperature Gain Reserve

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Amplifier Setup

3-9

Amplifier Level Control

Signal levels vary in a cable system primarily because cable attenuation changes with temperature. Other components such as passives and amplifier hybrids are also affected by temperature changes. To automatically compensate for these signal level fluctuations and control output level, you must select the optional ADU/QADU. For improved output level stability, use of the ADU/QADU is recommended.

When necessary and appropriate, you can also use manual gain control. The BLE100 gain is then determined by the potentiometer marked MAN on the electronics chassis cover.

Manual Gain Control

To use manual gain control:

1Verify that the electronics chassis is installed correctly.

2Ensure that there is continuity in the forward path by installing the design-value input equalizer and design value input JXP-*B attenuator.

3Ensure that the drive control select jumper is in the MAN position.

4Use a signal-level meter to measure the high band-edge carrier input level at the input test point: 750 MHz = channel 116, 870 MHz = channel 136, 1003 MHz = channel 158.

This carrier should be at standard analog level, non-scrambled.

5Verify that the input level agrees with the design specification input.

If the level is different from design, adjust accordingly. For example: the design level is 19 dBmV at the highest frequency and the design pad value is JXP-3B. If the actual measured level is 21 dBmV, then you must change the pad to a JXP-5B.

If the actual levels are significantly different from the design levels, it is recommended that you investigate or consult system management before proceeding.

6Connect the signal-level meter to the output test point and tune the meter to the high-end channel.

7Turn the manual gain reserve (MAN) control (illustrated in Figure 2-8) to maximum (fully clockwise) and then reduce the output as noted in Table 3-3 below:

Table 3-3

Gain reserve versus ambient temperature

Temperature

 

 

Gain Reserve

°

°

 

3 dB

Above 110 F (43 C)

 

4 dB

° °

°

°

32 F (0 C) to 110 F (43 C)

 

°

°

 

5 dB

Below 32 F (0 C)

 

 

BLE100 Installation and Operation Manual

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Contents Installation BLE100 Special Symbols That Might Appear on the Equipment Page Contents Specifications Bench TestingInstallation Operating TipsTorque Specifications Abbreviations and Acronyms TablesAppendix B Introduction BLE100 closedBLE100 open BLEUsing This Manual Related DocumentationDocument Conventions If You Need Help Motorola Online http//businessonline.motorola.comCalling for Repairs Overview BLE100 base with electronics moduleOrdering Matrix BLE100 ordering matrixHousing BLE-HSG/15 housing and dimensionsHousing gaskets GasketsHousing ports Port LocationsPower Supply BLE100 power supplyBLE100 block diagram Forward PathReturn Path BLE100 options and accessories Ingress Control SwitchOptions and Accessories Model Description FunctionSFE-100 SRESCS RCB JXP Bench Setup Amplifier SetupProper Handling Procedures Field PracticeForward Path Alignment Before You BeginStarline Cable Equalizers ExampleStarline Forward Equalizers SFE-100 Slope SFE-100Equalizer slope versus cable Starline Cable Simulators Frequency Cable slope in dBStarline Cable Simulators Input and Midstage Pads Flatness ControlFrequency versus cable slope Directional Coupler Test Points Bode EqualizationLDR/9/1G component layout top-left, bottom-right Amplifier Level Control Temperature Gain ReserveGain reserve versus ambient temperature Manual Gain ControlAmplifier Setup Automatic Drive Unit/QAM Automatic Drive Unit Return Path Alignment ADU/QADU Pads and LevelsAlignment Procedure Powering and Surge Protection Bench Testing Before You BeginTest Equipment and Connections Measuring Forward GainTest equipment connections for bench sweeping Example Testing Return Gain and Response Completing the Test ProceduresInstallation Aerial InstallationCenter-conductor pin length J1 position Description Torque sequencePedestal Installation Using Amplifiers in Lower Frequency Systems Using Amplifiers in Lower Gain SystemsOperating Tips Model BLE100S SpecificationsSpecification Forward AmplifierAC Current Return AmplifierADU Automatic Drive Unit Torque Specifications Torque Fastener Screw Wrench In-lbsSize Abbreviations and Acronyms Visit our website at 527548-001 04/06

BLE100 specifications

The Motorola BLE100 is an innovative device designed for efficiency and reliability in the realm of Bluetooth Low Energy (BLE) technology. As a compact and multifunctional solution, it caters to diverse applications, from cost-effective asset tracking to improving smart home environments. The BLE100 stands out for its practicality, making it ideal for both personal and commercial use.

One of the standout features of the Motorola BLE100 is its low power consumption. Leveraging Bluetooth Low Energy technology, the device can operate for extended periods without frequent battery replacements—ideal for remote monitoring applications where long-lasting performance is crucial. This characteristic ensures that users can rely on the BLE100 for day-to-day operations without the hassle of constant recharging.

In terms of connectivity, the BLE100 boasts seamless and stable connections over considerable distances. With a range of up to 100 meters in open environments, the device excels in maintaining reliable communication even in challenging conditions. Its compatibility with a wide array of Bluetooth-enabled devices ensures versatile usability, allowing users to integrate the BLE100 into existing systems with ease.

The Motorola BLE100 also prioritizes user-friendly design. The device is lightweight and compact, ensuring ease of installation and portability. Its robust build makes it resilient against environmental factors, while its sleek design enhances its aesthetic appeal. Moreover, straightforward setup processes and user interfaces facilitate quick deployment for various applications.

Another notable characteristic of the BLE100 is its advanced security features. With built-in encryption and pairing mechanisms, users can safeguard their data and communication. This is particularly vital in applications requiring confidential or sensitive information transfer.

The device supports various protocols and adheres to international standards, which ensures versatility and compatibility in multiple applications. Whether it's intelligent home systems seeking efficient device interaction or logistics needing simple asset tracking solutions, the Motorola BLE100 meets diverse needs.

In conclusion, the Motorola BLE100 is a powerful device that marries efficiency, functionality, and security. Its low power usage, reliable connectivity, user-friendly design, and robust features make it a top choice for anyone looking to enhance their Bluetooth Low Energy applications. With the BLE100, users can explore a wide range of possibilities, from smart technology integration to simplified monitoring solutions, all designed to optimize performance while maintaining a user-centric approach.
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