FCC ID: OIW CBDASMRPS8 INSTALLATION AND OPERATING INSTRUCTIONS The following is a copy of Installation and Operating Instructions of the MWCBDA-SMR-1W60PS-8 Cellular Bi-Directional Amplifier/Booster.
FCC ID: OIW CBDASMRPS8 INSTALLATION AND OPERATING INSTRUCTIONS FOR MW-CBDA-SMR-1W60PS-8 BI-DIRECTIONAL AMPLIFIER (COMPACT BDA) Page 2 of 11
FCC ID: OIW CBDASMRPS8 TABLE OF CONTENTS PARAGRAPH PAGE NO BDA OVERVIEW 4 BDA BLOCK DIAGRAM DESCRIPTION 4 BDA BLOCK DIAGRAM DRAWING 5 ELECTRICAL SPECIFICATIONS 6 MECHANICAL SPECIFICATIONS 7 ENVIRONMENTAL CONDITIONS 7 BDA CONNECTIONS 8 PERIODIC MAINTENANCE 8 DIAGNOSTIC GUIDE 9 MECHANICAL OUTLINE 10 RF EXPOSURE WARNING 11 Page 3 of 11
FCC ID: OIW CBDASMRPS8 BDA OVERVIEW: The BDA assembly provides an exceptional repeater/booster performances to extend the coverage area of radio communications in buildings and RF shielded environments. Features such as high linearity power amplifiers are contributing for the overall improved system linearity performances. The unit is based on a duplexed path configuration, having sharp out of band attenuation for improved isolation between the receiving and transmitting paths.
FCC ID: OIW CBDASMRPS8 MGC AGC RF AMPLIFIER DETECTER AGC CIRCUIT TO BASE STATION ANTENNA COUPLER Downlink Duplexer TO AREA ANTENNA Duplexer DETECTER (N-TYPE) AGC CIRCUIT (N-TYPE) MGC COUPLER Uplink AGC RF AMPLIFIER BDA BLOCK DIAGRAM MW-CBDA-SMR-1W60PS-8 Page 5 of 11
FCC ID: OIW CBDASMRPS8 ELECTRICAL SPECIFICATIONS: Frequency Range : Up Link : 806 – 824 MHz : Down Link : 851 – 869 MHz Passband Gain @ min attenuation : 60 dB minimum Passband Ripple : ±1.5 dB typical Noise Figure @+25°C at max gain : 6.0 dB max 3rd Order Intercept point : +45 dBm typical IMD @2 tone @+20 dBm/carrier : 50 dBc typical Isolation between Up/Down Link : 70 dB min Impedance Level : 50 Ohms VSWR In : 1.
FCC ID: OIW CBDASMRPS8 MECHANICAL SPECIFICATIONS: Size : 9.84 x 9.61 x 4.53 inch (250 x 244 x 115 mm) RF Connectors : N-type Female Weight : 10 Lbs. (5kg.) approx.
FCC ID: OIW CBDASMRPS8 BDA CONNECTIONS The BDA AC power is supplied through a standard 3-wire male plug with phase, neutral and safety ground wires. The AC power is only used to supply a high efficiency DC switching power supply. The two amplifiers (Uplink and Downlink) and the Power On lamp use only DC power. The RF connection is made via two type “N” female connectors. The RF connector labeled “Base” must be connected to the antenna pointing to the base station.
FCC ID: OIW CBDASMRPS8 DIAGNOSTICS GUIDE As mentioned before the BDA should provide long term, care free operation with no need of any periodic maintenance. This section will cover possible problems that may show up after installation. a. Gain Reduction Possible causes: Bad RF cables and RF connections to antennas, Damaged antennas. b. Excessive Intermodulation or Spurious Possible causes: Amplifier oscillation caused by insufficient isolation.
FCC ID: OIW CBDASMRPS8 MECHANICAL OUTLINE Page 10 of 11
FCC ID: OIW CBDASMRPS8 RF EXPOSURE WARNING: In order to satisfy the FCC RF exposure requirements, you must ensure that the installation complies with the following: One antenna is connected via cable that has 3~10 dB attenuation (depends on the length of the cable) to the CBDA BASE port. This antenna is installed outdoor and has very sharp beam (Yagi type or similar) pointed to the donor (BTS). This type of antenna has about 10 dBi gain. Typical specifications: (model ASPD2996): gain: 8dBd (=10.
