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MECHANICAL SPECIFICATIONS: 

 

Size 

 

      : 

13.5 

12.5 

5.6 

inch 

: (343 x 317.5 x 142.3 mm) 
 

RF 

Connectors 

 

    : 

N-type 

Female 

 
Weight 

      : 

20.9 

Lbs. 

(9.5kg.) 

approx. 

 

ENVIRONMENTAL CONDITIONS: 

 

The unit is designed for indoor applications: 
 
Operating temperature: - 20

°

C to + 50

°

 
Storage temperature: - 50

°

C to + 90

°

 

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.  
 
A 9-pin D-Sub connector provides failure alarm output contacts (see diagram next 
page) as well as an optional 12 VDC (250mA) auxiliary output.    
 
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 5 

Содержание BDA-PS8-2

Страница 1: ...INSTALLATION AND OPERATING MANUAL BDA PS7 PS8 2 2W 80 A DUAL BAND BI DIRECTIONAL AMPLIFIER...

Страница 2: ...ONS 4 MECHANICAL SPECIFICATIONS 5 ENVIRONMENTAL CONDITIONS 5 BDA CONNECTIONS 5 MECHANICAL OUTLINE DRAWING Figure 1 1a 6 BDA INSTALLATION 7 BDA OPERATION 8 UPLINK MECHANICAL OUTLINE ADJUSTMENT Figure 2...

Страница 3: ...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...

Страница 4: ...26 dBm Isolation between Up Down Link 100 dB min Input Output Impedance 50 Ohms VSWR Input Output 1 5 1 max Pass band Gain min attenuation 80 dB minimum Power Supply 110VAC 1 42Amp 240VAC 0 71 Amp 50...

Страница 5: ...connector provides failure alarm output contacts see diagram next page as well as an optional 12 VDC 250mA auxiliary output The RF connections are made via two type N female connectors The RF connecto...

Страница 6: ...ine Figure 1a Relay Shown in Non Alarm Condition The alarm monitors current of both uplink and downlink amplifiers An alarm condition will occur if either uplink or downlink amplifiers are over or und...

Страница 7: ...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 a...

Страница 8: ...to the factory preset level of 26 dBm ALC function is located on each amplifier and accessible via the access door on the BDA enclosure A red indicator lamp located on each amplifier illuminates when...

Страница 9: ...Figure 2 Uplink Adjustment Access Panel and Label Page 9 OFF ON ALC 0 30 UPLI NK...

Страница 10: ...Figure 3 Downlink Adjustment Access Panel and Label Page 10 0 30 DOW NLINK OFF ON ALC...

Страница 11: ...quires 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 Red...

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