background image

 

 File 

Doc. No. 

             Date 

 Version 

Page 

DBHB-20 

5700 9004 055 

Aug 05 

 1.0 

9/12 

 

 

 

Next Generation 
Signal Enhancement 

4.        Alarm indication LED will glow red colour, After inserting all the attenuation 

the output power is greater than the desired level ( 10dBm ) the system 
will shutdown the PA for 30 seconds and restart . If so, refer annexure 2for    
rectification or contact SHYAM technical support     team    on       +91-11-
25798544 or email at

   [email protected]

 

5.        Review the intended coverage area according to the site installation 

plan.Using a mobile NOKIA handset loaded with NET engineering 
software and 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 after DL ALIGN is completed. 

 
 

• 

DL ALIGN LED will blink when the system is in the Downlink 
alignment mode.When the alignment is over the DL ALIGN LED 
will glow. 

 

 

• 

SHUT DOWN LED will glow when the downlink power is more 
than the desired level. The systems will shutdown the PA and then 
restart after 30 seconds. 

 

 

Downlink  RSSI  is  monitored  continuously  and  display  through  3               

LED’s

 

• 

When the RSSI is greater than –40, glow the RSL High LED. 

 

 

• 

When the RSSI in between –60 & -40, glow the RSL Mid LED. 

 
 

• 

When the RSSI is less than –60, glow the RSL Low LED. 

 
 
 

 
 
 
 
 
 
 
 

 
U/L ALIGN 

 
D/L ALIGN 

 
SHUT DOWN 

 
RSL HIGH 

 
RSL MID 

 
RSL LOW 

Summary of Contents for DBHB-20

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Reviews: