Summary of Contents for VAF GV900W
-
Page 1: User Manual
GV900W Adjustable Band Selective Repeater User Manual Version 1.2 April 2007 VAF Corp. Data Communication Tell: 44655121 Fax: 44658496... -
Page 2: Table Of Contents
Bottom panel ............. 10 3.1.3 Front panel ..............10 ..............11 SETTING ....14 REPARATIONS BEFORE NSTALLATION OF THE QUIPMENT ......... 16 NSTALLATION AND PENING OF QUIPMENT MAINTENANCE ..............17 CAUTIONS ................18 APPENDIX ................18 VAF Corp. Data Communication Tell: 44655121 Fax: 44658496... -
Page 3: General
VAF Adjustable Band Selective Repeater General Overview In GSM mobile communication system, limited by the coverage of base station or by geographic environment, the transmission of signals may be influenced in shadow or semi-shadow in some areas, generally referred to as blind area or semi-blind area, bringing serious impact on voice quality or even causing failure to normal communication. - Page 4 GV900W wireless transmission repeater integrated with wireless communication technology excellent...
-
Page 5: Scope Of Application Of The Equipment
GSM mobile communications. GV900W repeater of GSM mobile communications mainly serves the operators of GSM900MHz mobile communication Features... -
Page 6: Technical Standard
VAF Adjustable Band Selective Repeater When monitoring center has not been established, technicians can monitor, set, modify the parameters of all the modules of repeaters and easily collect equipment warning information via local PC. Once the repeater fails, monitoring system can immediately send warning information to designated mobile phone or cable phones at will. -
Page 7: Technical Specification
VAF Adjustable Band Selective Repeater Technical specification 2.1.1 Major blocks diagram Components of repeater The equipment consists of duplexers, uplink filters, downlink filters, uplink band selective amplifying module, downlink band selective amplifying module, monitoring elements and power elements. 2.1.2 Theory of Operation... - Page 8 VAF Adjustable Band Selective Repeater Technical Specification Item Up Link Down Link Frequency range 890-915MHz 935-960MHz Max. Output Power 33dBm 33/37/40/43 dBm Max. Gain 90±3 dB 95±3 dB Gain step 1 db Gain adjust scope 31 dB Adjustable ( Each Step...
-
Page 9: Technical
VAF Adjustable Band Selective Repeater Requirement technical In accordance with relevant regulations in the safety standard of GB4793-84 Requirement In accordance with relevant regulations in the electromagnetic compatibility standard of GB6833-87 Temperature: -25 ˚c ~ 55˚c Humidity: ≤95% Environmental Conditions... -
Page 10: Installation
VAF Adjustable Band Selective Repeater Installation System description Fix part Heat sink VAF Corp. Data Communication Tell:44655121 Fax: 44658496... -
Page 11: Structure And Internal Module
VAF Adjustable Band Selective Repeater 3.1.1 Structure and Internal module 3.1.1.1 Power Amplifier 3.1.1.2 LNA Module 3.1.1.3 Filter 3.1.1.4 Duplexer 3.1.1.5 Channel/Band/Frequency Selective 3.1.1.6 GSM Modem 3.1.1.7 Control Unit 3.1.1.8 LCD Panel VAF Corp. Data Communication Tell:44655121 Fax: 44658496... -
Page 12: Bottom Panel
VAF Adjustable Band Selective Repeater 3.1.2 Bottom panel MODEM Antenna AC220V Donor Power Coverage Ground Antenna Supply Antenna 3.1.3 Front panel Alarm GSM900 RF REPEATERS POWER Power Reset Enter Shift RS232 Control Key Down Right VAF Corp. Data Communication Tell:44655121 Fax: 44658496... -
Page 13: Lcd Setting
VAF Adjustable Band Selective Repeater LCD setting Explain Power On display Power On Welcome GV 900 W RF Repeaters Self test: Test A/D1.. OK A/D1 ----- passed Self test: ilure will show “Fail” Modem ---- passed, if fa Test MODEM .. OK... - Page 14 VAF Adjustable Band Selective Repeater MENU: <- SETUP -> SETUP: setup device parameter SETUP -> LOOK: display device parameter LOOK VER: display device version When cursor on “VER”, press “Return” button, will show software version as below Version information: GV 900 W GV 900 W VER1.0...
- Page 15 VAF Adjustable Band Selective Repeater Item 2.4: work channel enable setting: operator <- SETUP P2.4 -> can edit through “right” and “shift” button; when CH1 _ ON CH2 _ ON finished edit press “return” to confirm CH3 _ OFF CH4 _ OFF...
-
Page 16: Preparations Before Installation Of The Equipment
VAF Adjustable Band Selective Repeater CH4_065: No use Item 2.10: Work channel setting: operator can edit <- SETUP P2.10 -> through “right” and “shift” button; when finished CH5_ 000 CH6_ 000 edit press “return” to confirm CH7_ 000 CH8_ 000... - Page 17 VAF Adjustable Band Selective Repeater antenna while its coverage must be ensured. For isolation degree, the greater, the better. Selection of band Set to corresponding frequencies by using the monitoring and control software of the repeater. Field intensity test and level adjustment.
-
Page 18: Installation And Opening Of Equipment
VAF Adjustable Band Selective Repeater that it is closely fastened with ripple copper sheet. Seal it with tape or clay and fasten the other end firmly to ground. Fixing screws or nuts must receive anti-rust treatment. Installation and Opening of Equipment Open the package and check the merchandise according to packing list. -
Page 19: Maintenance
VAF Adjustable Band Selective Repeater light will be on indicating that the equipment is in the status of initialization. The yellow light will blink in regular intervals to indicate that the system is working normally. After a while, the red light will be off, indicating that initialization is completed and the system is in working status. -
Page 20: Cautions
VAF Adjustable Band Selective Repeater Cautions The products of our company have been tested and aged before delivery so as to ensure quality. The products are sealed upon delivery and no units or individuals are allowed to unseal them without the authorization of our company. Our company shall not be liable for any consequences caused due to the unauthorized start of the product. - Page 21 VAF Adjustable Band Selective Repeater 10dB 11dB 12dB 13dB 14dB 15dB 16dB 17dB 18dB 19dB 20dB 21dB 22dB 23dB 24dB 25dB 26dB 27dB 28dB 29dB 30dB 31dB Power Watt to dBm exchange table watt watt watt watt 0.001 0.04 1.28 0.00125...
- Page 22 VAF Adjustable Band Selective Repeater 0.016 0.512 0.02 0.64 0.024 25.6 0.032 1000 dBm=10logmW Channel ID define Channel ID scope : 1 to 1000 Step between two channel is : 25K Hz Uplink channel define: Channel N = 890.000HZ + N * 0.025 M Hz Downlink channel define: Channel M = 935.000HZ + M * 0.025 M Hz...
Need help?
Do you have a question about the GV900W and is the answer not in the manual?
Questions and answers