FCC ID: QQRBSMR1W60 INSTALLATION AND OPERATING INSTRUCTIONS ----- 47CFR 2.1033(3). The following is a copy of Installation and Operating Instructions of the BDASMR1W60 Cellular Bi-Directional Amplifier/Booster. Page 1 of 13 FCC ID: QQRBSMR1W60 INSTALLATION AND OPERATING MANUAL FOR BDASMR1W60 BI-DIRECTIONAL AMPLIFIER Page 2 of 13 FCC ID: QQRBSMR1W60 TABLE OF CONTENTS PARAGRAPH BDA OVERVIEW BDA BLOCK DIAGRAM DESCRIPTION BDA BLOCK DIAGRAM DRAWING (Figure 1) ELECTRICAL SPECIFICATIONS MECHANICAL SPECIFICATIONS ENVIRONMENTAL CONDITIONS BDA CONNECTIONS MECHANICAL OUTLINE DRAWING (Figure 2) RF EXPOSURE WARNING BDA INSTALLATION BDA OPERATION MECHANICAL OUTLINE- ADJUSTMENT (Figure 3) DIAGNOSTICS GUIDE PAGE NO 4 4 5 6 7 7 7 8 9 10 11 12 13 Page 3 of 13 FCC ID: QQRBSMR1W60 BDA OVERVIEW:
The BDA assembly extends the coverage area of radio communications in buildings and RF shielded environments. The unit features low noise figure and wide dynamic range. It is based on a duplexed path configuration with sharp out of band attenuation allowing improved isolation between the receiving and transmitting paths. BDA BLOCK DIAGRAM DESCRIPTION:
Refer to figure 1 for the following discussion. The BDA Downlink path receives RF signals from the base station and amplifies and transmits them to the subscriber. The BDA Uplink path receives RF signals from the subscriber and amplifies and transmits them to the base station. The Uplink and Downlink occupy two distinct frequency bands; 806-821 MHz for the Uplink and 851-866 MHz for the Downlink. Two diplexers isolate the paths and route each signal to the proper amplifying channel. A selectable Automatic Level Control (ALC) allows for output power limiting. A Manual Gain Control (MGC) provides continuous control of amplifier gain. The use of these controls is covered in the OPERATION section, later in this document. Page 4 of 13 FCC ID: QQRBSMR1W60 Figure 1 Page 5 of 13 FCC ID: QQRBSMR1W60 ELECTRICAL SPECIFICATIONS:
Frequency Range
: Up Link: 806 821 MHz
: Down Link: 851 866 MHz Pass band Gain @ min attenuation
: 60 dB minimum Manual Gain Control Range
(continuous) Pass band Ripple
: 15 dB minimum
: 1.5 dB typical Noise Figure @+25C at max gain
: 5.0 dB max 3rd Order Intercept point
: +45 dBm typical IMD @2 tones @+20 dBm/carrier
: 50 dBc typical Isolation between Up/Down Link Input/ Output Impedance VSWR (Input/Output) Power Supply
: 70 dB min
: 50 Ohms
: 1.5: 1 max
: 100 to 240 VAC;
50 to 60 Hz; @500 mA Page 6 of 13 FCC ID: QQRBSMR1W60 MECHANICAL SPECIFICATIONS:
Size RF Connectors Weight
: 9.84 x 9.61 x 4.53 inch
(250 x 244 x 115 mm)
: N-type Female
: 10 Lbs. (5kg.) approx. ENVIRONMENTAL CONDITIONS:
The unit is designed for indoor applications:
Operating temperature: - 30C to + 50C Storage temperature: - 50C to + 90C BDA CONNECTIONS The BDA AC power is accepted through a standard 3-wire male plug (IEC-320) with phase, neutral and ground leads. The AC power is wired to a high efficiency DC switching power supply which is CE and UL approved. The power supply runs the amplifiers and the Power On lamp. The metal enclosure of the BDA is connected to ground. The RF connections are made via two type N female connectors. The RF connector labeled BASE must be connected to the antenna pointing towards the base station. The RF connection labeled MOBILE must be connected to the antenna facing the area to be covered by the BDA. The RF connections must be made through cables with characteristic impedance of 50 ohms. The isolation between the base station antenna and the mobile antenna should be at least 12 dB higher than the BDA gain. Isolation less than this value can cause gain ripple across the band. Isolation equal to or less than the BDA gain will give rise to oscillations which will saturate the amplifiers and possibly cause damage to the BDA. Page 7 of 13 FCC ID: QQRBSMR1W60 Figure 2 CSC iDEN / SMR IN BUILDING REPEATER BDA Mechanical Outline Page 8 of 13 FCC ID: QQRBSMR1W60 RF EXPOSURE WARNING In order to satisfy the FCC RF exposure requirements, the BDA/antenna installation must comply with the following:
The outdoor antenna (Yagi type or similar directional antenna) must be installed so as to provide a minimum separation distance of 1 meter (100 cm) between the antenna and persons within the area. (This assumes a typical antenna with gain of [10.1 dBi, VSWR 1.5:1, Zo= 50 ohms, and a cable attenuation of between 1-
10 dB). The indoor antenna (omni directional) must be installed so as to provide a minimum separation distance of 0.2 meters (20 cm) between the antenna and persons within the area. (This assumes a typical wide-beam type antenna with gain of 0-2 dBi, VSWR 2:1, Zo= 50 ohms, and a cable attenuation of between 1-10 dB). Page 9 of 13 FCC ID: QQRBSMR1W60 BDA INSTALLATION DO NOT APPLY A.C. POWER TO THE BDA UNTIL CABLES ARE CONNECTED TO BOTH PORTS OF THE BDA AND THE ANTENNAS. 1. Mount the BDA on the wall with the RF connectors pointing DOWN. Using appropriate screws and anchors, attach the BDA to the wall at the four mounting holes on the side flanges. 2. Ensure that the isolation between the donor antenna and the service antenna is at least 12 dB greater than the BDA gain. (Use the higher of the Uplink and Downlink gains reported on the BDA test data sheet). 3. Connect the cable from the donor antenna to the BDA connector labeled BASE and the cable from the service antennas to the BDA connector labeled MOBILE. 4. Open the adjustment access panels on the sides of the BDA and verify that both of the ALC switches are in their factory preset ON positions. Close the panels. 5. Connect the AC power cord to the BDA and then to the power source. Verify that the Power ON lamp is illuminated. Installation of the BDA is now complete. To adjust the gain controls to suit the specific signal environment, refer to the next section of the manual. Page 10 of 13 FCC ID: QQRBSMR1W60 BDA OPERATION Refer to figure 3 for adjustment access location and label. ALC (Automatic Level Control) To minimize intermodulation products, each amplifier in the BDA contains an ALC feedback loop. The ALC circuit senses the output power and limits it to the factory preset level of +24 dBm. ALC function is selected with an on/off toggle switch located on each amplifier and accessible via the adjustment access panels located on the sides of the BDA enclosure (Left, or BASE side is Downlink, right, or MOBILE side is Uplink). A red indicator lamp located on each amplifier illuminates when output power exceeds the ALC set point. The indicator is functional regardless of the position of the ALC switch. Units are shipped with the ALC switch in the ON position. MGC (Manual Gain Control) BDA gain can be reduced by approximately 15 dB with screwdriver-adjustable potentiometers located on each amplifier. The potentiometers accept a 3/32 slotted screwdriver (provided), and are accessible via the adjustment access panels located on the sides of the BDA enclosure (Left, or BASE side is for Downlink, right, or MOBILE side is for Uplink). When ALC operation is selected, the MGC serves as the master, controlling the gain, and lowering the effective ALC set point. MGC cannot raise ALC set point above its factory preset level. If operation below the 24 dBm ALC set point is desired, BDA gain/output level can be reduced by turning the MGC potentiometer clockwise until the light goes off. Operation of BDASMR1W60 at maximum gain with greater than -25 dBm average power incident on either BASE or MOBILE port can cause damage to the BDA. Page 11 of 13 FCC ID: QQRBSMR1W60 Figure 3 OFF ON AGC DOWNLINK 7 0 15 MGC ADJ {dB }
Adjustment Access Panel and Label Page 12 of 13 FCC ID: QQRBSMR1W60 DIAGONOSTICS GUIDE The BDA provides long term, care-free operation and requires no periodic maintenance. There are no user-serviceable components inside the BDA. This section covers possible problems that may be related to the installation or operating environment. 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. The isolation between two antennas is given by the equation:
Isolation = 92.5 + 20 Log (F x D) Gt Gr Where:
F = frequency (GHz) D = separation (Km) Gt = transmit antenna gain (in the direction of the receive antenna). Gr = receive antenna gain (in the direction of the transmit antenna). For example, at the SMR frequencies, the antenna isolation at 100 m separation is about 71 dB for omni-directional antennas (0 dB gain). To increase isolation, the antennas should have higher directivity and must be pointed away from each other. c. Occasional Drop-out of some Channels Possible causes: One channel with very strong power dominates the RF output of the amplifier. Page 13 of 13