User's Manual

ManualsBrandsAndrew ManualsElectronicsPCS repeater model PCSSSR1900

INSTALLATION & OPERATION MANUAL FOR THE BETA

MODELS OF THE PCS SSR

Contents:

1.0 Description

1.1 Physical Configuration

1.2 Electronic Description & Block Diagram

1.3 Operational Environment

2.0 Installation Guide lines

2.1 Location

2.2 Mounting

2.3 Power Supply

3.0 Operation Guide Lines

3.1 Power / Interface Circuit Board

3.2 Stability

Appendix A: PCS Frequency Band and Blocks

Appendix B: Specifications

Appendix C: Gain Adjustment

1.0 Description

WARNING: This device complies with CFR 47, Part 24 of the FCC rules.

Any modification not expressed approved by the manufacturer could

invalidate the user's authority to operate the device.

1.1 Physical Configuration

Figure 1 is an illustration of the 18” PCS Side to Side Repeater (SSR) indicating

important features; Figure 2 is an illustration of the 12” SSR. As shown in the

illustrations both SSRs have a square shape with rounded corners; both units have the

same physical thickness (approximately 2”). The 18” unit weighs approximately 14.5

pounds; the 12” unit approximately 8 pounds. The 2” wide edge of both units contain

4 deep grooves separated by fins; this structure is an important electrical feature and

must be keep free of extraneous material. Likewise, the central 8” square area on

each face is electrically active and must be kept free of contaminating materials.

Take special note that each face of the SSR has a unique electrical function and must

properly oriented in operation (see section 2.0). The illustrations show the SSR

without the radomes normally attached to each face. When attached the radome with

the Andrew flash indicates which side should be facing the handset (mobile unit).

1.2 Electronic Description & Block Diagram

The 1900 series PCS repeaters operate in the 1900 MHz PCS band. They were

developed to provide more reliable coverage and/or range extension of PCS systems

within sheltered structures. Specific models for each of the major US PCS sub-bands

Summary of content (13 pages)

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INSTALLATION & OPERATION MANUAL FOR THE BETA MODELS OF THE PCS SSR Contents: 1.0 Description 1.1 Physical Configuration 1.2 Electronic Description & Block Diagram 1.3 Operational Environment 2.0 Installation Guide lines 2.1 Location 2.2 Mounting 2.3 Power Supply 3.0 Operation Guide Lines 3.1 Power / Interface Circuit Board 3.2 Stability Appendix A: PCS Frequency Band and Blocks Appendix B: Specifications Appendix C: Gain Adjustment 1.
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( A, B, C, D, E & F) are offered. Pre-aligned antennas on each side of the repeaters make them easy to install and simple to operate. Designed for indoor environments, they only require a standard US 110VAC outlet for operating power. All three popular PCS systems (TDMA, CDMA & GSM) are supported. Figure 3 is an electronic block diagram of SSR internal and external circuitry. Separate antennas provide receive and transmit functions for the complementary uplink and downlink bands.
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reflecting/refracting object. Obviously, a perfect “free space” environment for the SSR is the ideal location, but not practical. However, a major goal of the operating location selection process is to find a place that approximates a “free space” environment as closely as possible. A location that provides a “clear” communication link with a suitable base station signal using a typical handset is also required for proper operation of the SSR.
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Red LED adjacent to Green Power LED described above. Green LED nearest power connector. Green LED next in line away from power connector. On state indicates an internal over current event has occurred. Power to the SSR must be interrupted for 10 or more seconds to reset this “circuit breaker” function. Repeated resets (more than 3 times in 30 minutes) may cause permanent damage to SSR.
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Figure 1.
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Figure 2.
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Figure 3.
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Figure 4.
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Figure 5.
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APPENDIX A.
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APPENDIX B: Specifications Common to all Models: Model 1900-xxx Rx Freq (MHz) Rx NF Tx Freq (MHz) Tx Pwr ACPR Power @110VAC Temp Range Rx/Tx Active Gain Size Weight Rx/Tx Active Gain Size Weight -12A & -18A -12B & -18B 1850-1865 1870-1885 1930-1945 -12C & -18C -12D & -18D -12E & -18E -12F & -18F 1895-1910 1865-1870 1885-1890 5.
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APPENDIX C: Gain Adjustment The small multi-turn potentiometers (pot) visible on the edge of PWR I/F board between the power connector and the row of LEDs may be adjusted to reduce the electronic gain of the SSR (see illustration below). Keep in mind that proper location of the SSR is the best way stabilize the SSR. Gain reduction will drastically reduce the range over which the SSR can provide signal improvement. Rotation of the adjustment screw clockwise will reduce the gain of the SSR.