background image

 

 File 

Doc. No. 

             Date 

 Version 

Page 

DBHB-20 

5700 9004 055 

Aug 05 

 1.0 

10/12 

 

 

 

Next Generation 
Signal Enhancement 

 Annexure 1 

 
 

 

Technical Specification: Boosters DBHB-20 

Parameter 

DBHB-20   : 

800 & 1900 MHz

 

Frequency Range 

Cellular    Uplink  

: 824-849 MHz 

Cellular     Downlink  

 : 869-894 MHz 

PCS         Uplink             :1850-1910 MHz 

PCS            Downlink       :1930-1990 MHz 

Frequency Bandwidth (Ver. A) 

Cellular Full band of 25 MHz 

                           PCS Full band  60 MHz 

Occupied Bandwidth 

CDMA 1.26MHz, GSM 250KHz, EDGE 250KHz 

20dB Pass Bandwidth 

36MHz for Cellular Band/72MHz for PCS Band 

Operator, State Selective 
Version OSS 

*Specific models for different operators world-wide 

Contact 

SHYAM

 with coverage area & Operator name 

 Nominal Gain 

65 dB Min/75dB Max. in each band 

Automatic Gain adjustment   

31 dB steps of 1 dB  

Auto Power Control range 

10 dB  

DL Power Output, P1db 

16 dBm (Max. Variation 

±

3dB) 

 UL Power Output P1db 

16 dBm (Max. Variation 

±

3dB) 

Power Back -Off 

3dB for 2 Carries /6dB for 4 Carries 

Inter Modulation Products 

(two tone method, +7 dBm per tone) 

Spurious Emission 

(ETS 300 609 

4/GSM 11.26) and (ETS 300 577 GSM 

05.05)

 

<-36dBm @ 9 KHz – 1 GHz 

 

<-36dBm @ 9 KHz – 1 GHz 

Noise Figure 

8dB Max. 

V.S.W.R 1.5 

Max. 

Power adapter (9V DC, 2 Amp.) 

AC90-240V, 50/60 Hz 

RF Connector (Donor and 

Server Antenna) 

N (F) TYPE & Input/Output impedance=50Ohm 

Dimensions (HxWxD) approx. 

86 x 170 x 40 mm 

Weight Approx. 

1 Kg. 

Operating Temperature Range 

-5

o

 C ~ 55

o

 C 

Содержание DBHB-20

Страница 1: ...information contained herein is proprietary to Shyam Telecom Limited Use or disclosure of this document or the information contained herein for any purpose other than that for which it was furnished...

Страница 2: ...Booster Theory Background 5 4 0 Description of DBDBHB 20 Booster installation Kit 6 5 0 System Design and Setup 7 6 0 Installing the DBHB 20 7 6 1 Pre installation considerations 7 6 2 Installation T...

Страница 3: ...at the following address SHYAM Telecom Ltd A 60 Naraina Industrial Area Phase I New Delhi 110028 INDIA Tel 91 11 51411076 Fax 91 11 51411078 Email repeater shyamtelecom com Under consideration of all...

Страница 4: ...e co located or operating in conjunction with any other antenna or transmitter The signal booster with server antenna must be installed to provide minimum 20 cm separation distance between the server...

Страница 5: ...indoor areas such as office buildings parking garages apartment buildings shopping malls and residential homes Outdoor areas are degraded by geographic topologies such as mountains valleys dense foli...

Страница 6: ...The indoor antenna of DBHB 20 booster provides RF signal in all directions downward and outward from the installation point A adopter is supplied with DBHB 20 powered by universal 90 240 VAC mains sup...

Страница 7: ...the received signal level from the base station It is imperative to monitor the received signal level from the base station also called downlink signal Downlink signal may change if some high building...

Страница 8: ...e donor antenna and DBHB 20 booster which is supplied in the installation kit 7 Ensure that the three pin power point has proper earthing connection before switching on the power to booster Please rem...

Страница 9: ...the SIM card of cellular operator measure and monitor the signal level at various points within and around the perimeter of the coverage area 6 5 Display Details of DBHB 20 UL ALIGN LED will glow aft...

Страница 10: ...r different operators world wide Contact SHYAM with coverage area Operator name Nominal Gain 65 dB Min 75dB Max in each band Automatic Gain adjustment 31 dB steps of 1 dB Auto Power Control range 10 d...

Страница 11: ...beginning but after few days the performance has degraded 1 The received signal level from the base station might have degraded due to environmental changes such as new building construction and so o...

Страница 12: ...l controls accessible to the user for any adjustments to operate in violation of the limits prescribed in this Standard Furthermore information on internal adjustments reconfiguration or programmabili...

Страница 13: ...DBHB 20 5700 9004 055 Aug 05 1 0 13 12 Next Generation Signal Enhancement For Customer Use Only SHYAM Telecom Ltd 246 Phase IV Udyog Vihar Gurgaon 122015 INDIA Tel 91 124 5108830 Fax 91 124 5018117 Em...

Отзывы: