Wave BDA-CELLB-2/2W-80-OCA Скачать руководство пользователя страница 7 | Manualshive

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CELL B

OUT DOOR 2 WATT

REPEATER

Figure 2

BDA Mechanical Outline

Page 7

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Содержание BDA-CELLB-2/2W-80-OCA

Страница 1: ...INSTALLATION AND OPERATING MANUAL FOR BDA CELLB 2 2W 80 OCA OUTDOOR REPEATER ...

Страница 2: ...ure 1 4 ELECTRICAL SPECIFICATIONS 5 MECHANICAL SPECIFICATIONS 6 ENVIRONMENTAL CONDITIONS 6 BDA CONNECTIONS 6 MECHANICAL OUTLINE DRAWING Figure 2 7 ALARM CONFIGUATION Figure 3 8 ALARM LED CONFIGUATION Figure 4 8 RF EXPOSURE WARNING 9 BDA INSTALLATION 10 BDA OPERATION 11 VARIABLE GAIN ADJUSTMENT 12 ALC ADJUSTMENT 12 DIAGNOSTICS GUIDE 13 Page 2 ...

Страница 3: ...tion 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 For example the CELL B frequency bands are as follows 835 849 MHz for the Uplink and 880 894 MHz for the Downlink Two diplexers isolate the paths and route each signal to ...

Страница 4: ...Down Link HPA is a high power amplifier with an ALC circuit which offers 43dB Gain 4 Up Link MPA is a medium power amplifier with an ALC circuit which offers 43dB Gain 5 Up Link Pre amp is a low noise amplifier that drives the Up Link MPA and offers 46dB Gain 6 Down Link Tx filter is enhanced for High Power applications preventing arching when the power amplifier approaches the 1dB compression poi...

Страница 5: ...6 dBm Downlink 26 dBm Isolation between Up Down Link 100 dB min Input Output Impedance 50 Ohms VSWR Input Output 1 5 1 max Power Supply 110VAC 0 89 Amp 240VAC 0 45 Amp 50 to 60 Hz The Manufacturer s rated output power of this equipment is for single carrier operation For situations when multiple carrier signals are present the rating would have to be reduced by 3 5 dB especially where the output s...

Страница 6: ... 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 b...

Страница 7: ...CELL B OUT DOOR 2 WATT REPEATER Figure 2 BDA Mechanical Outline Page 7 ...

Страница 8: ...downlink failure LED will illuminate Figure 4 The alarm monitors current of both uplink and downlink amplifiers An alarm condition will occur if either uplink or downlink amplifiers are over or under its current tolerance Page 8 Uplink Test Switch Alarm Board Amplifier Status LEDs Green LED System OK Red LED Uplink Fail Red LED Downlink Fail Figure 3 Alarm Test Switches ...

Страница 9: ...0 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...

Страница 10: ...ntenna to the BDA connector labeled BASE and the cable from the service antennas to the BDA connector labeled MOBILE 4 Open the access door on the BDA and verify that the Uplink and Downlink ALC switches are in their factory preset ON positions Close the door 5 Connect the AC power cord to the BDA and then to the power source Verify that the Power On indicator is lit Installation of the BDA is now...

Страница 11: ...meets or exceeds the ALC set point The indicator is functional regardless of the position of the ALC switch Units are shipped with both ALC switches in the ON position To ensure distortion free operation limited to the set point keep both the ALC switches turned ON To establish proper operating gain on the Uplink and Downlink sides start with the Downlink Verify that the ALC switch is in the ON po...

Страница 12: ...Adjustment Access Figure 5 ALC Adjustment Access Page 12 ALC UPLINK OFF ON Alarm Board and Momentary test switches Up Link MPA ALC circuit inside Down Link MGC Down Link MPA ALC circuit inside AC Power Surge Protection Up Link MGC ALC DOWNLINK OFF ON ...

Страница 13: ...en 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 ...

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