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©2016 GS Instech Co., Ltd. All rights reserved.
GST-IC-ELITE-1943
USER MANUAL
November 18, 2016
GS Instech Co., Ltd.

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[CHANGE RECORD]
Add a Modem redundant Configuration
Edit according to FCC/ UL Regulation

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[TABLE OF CONTENTS]
1. GENERAL ............................................................................ 8
1.1. Purpose ............................................................................................ 8
1.2. Copyright .......................................................................................... 8
1.3. FCC Warning Statements ....................................................................... 9
2. INTRODUCTION ................................................................... 11
2.1. System Overview ............................................................................... 11
2.2. Main Features ................................................................................... 12
3. SYSTEM DESIGN .................................................................. 13
3.1. Perspective View ............................................................................... 13
3.2. Exterior View ................................................................................... 14
3.3. Interior View .................................................................................... 15
3.4. External Interface .............................................................................. 16
4. SYSTEM SPECIFICATION ......................................................... 17
4.1. RF Performance ................................................................................ 17
4.2. ICS General Performance ..................................................................... 19
4.3. Frequency Information ....................................................................... 19
4.3.1. CDMA Band CLASS 1 ........................................................................................................................................................................ 19
4.3.2. LTE Band 25 ........................................................................................................................................................................................... 19

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4.4. Configuration & Mechanical Specification ................................................ 20
5. SYSTEM BLOCK CONFIGURATION .............................................. 21
5.1. Block Diagram ................................................................................... 21
5.2. Signal & Data Flow ............................................................................ 22
6. FUNCTION DESCRIPTION ........................................................ 23
6.1. General ........................................................................................... 23
6.2. Channel (Band) Selection ..................................................................... 23
6.3. ALC/ AGC & Gain Balance Function ....................................................... 24
6.4. Smart AGS (Auto Gain Setting) Function ................................................. 24
6.5. ASD (Auto Shut Down) Function ........................................................... 25
6.6. ICS Function ..................................................................................... 26
6.7. Download ......................................................................................... 27
6.8. NMS Operation .................................................................................. 27
6.9. System Gain Auto Saving .................................................................... 27
7. STATUS/ CONTROL & ALARM MONITORING .................................. 28
7.1. Status Monitoring and Control Parameters .............................................. 28
7.2. Alarm Monitoring ............................................................................... 30
8. WEB-UI OVERVIEW ............................................................... 32
8.1. Configuration the Laptop to Connect to the Repeater .................................. 32
8.2. Login-In Screen ................................................................................. 33

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8.3. Main Screen ..................................................................................... 34
8.4. RF Status ......................................................................................... 35
8.5. RF Configuration ............................................................................... 36
8.6. Alarm Configuration ........................................................................... 37
8.7. Fake Alarm Configuration .................................................................... 38
8.8. Communication Configuration ............................................................... 39
8.9. User Management .............................................................................. 40
8.10. Alarm Log ........................................................................................ 41
8.11. Log ................................................................................................. 42
8.12. Troubleshooting ................................................................................. 43
8.13. Software Update ............................................................................... 44
8.14. System Reset .................................................................................... 45
8.15. Factory Default Setting ....................................................................... 46
8.16. Configuration Transfer ........................................................................ 47
9. SYSTEM INSTALLATION .......................................................... 48
9.1. Warnings and Hazards ......................................................................... 49
9.1.1. Electric Shock ........................................................................................................................................................................................ 49
9.1.2. Exposure to RF ..................................................................................................................................................................................... 49
9.2. Position Antenna ................................................................................ 49
9.3. Cabling ............................................................................................ 50
9.4. Service Man Installation Guide ............................................................. 50
9.4.1. Pole Mount Installation .................................................................................................................................................................... 51
9.4.2. Wall Mount Installation .................................................................................................................................................................... 55

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9.4.3. Recommended Distance for installing system mounting ................................................................................................ 58
9.5. Cable Connection .............................................................................. 59
9.5.1. AC Power cable connection ........................................................................................................................................................... 59
9.5.2. FAN Power Cable Connection ....................................................................................................................................................... 60
9.5.3. RET Cable Connection ...................................................................................................................................................................... 60
9.5.4. Local Maintenance Connection .................................................................................................................................................... 60
9.5.5. Grounding cable Connection ........................................................................................................................................................ 61
FIGURE 1. FCC/ UL CERTIFICATION STATEMENT ............................................................................................................................................... 9
FIGURE 2. GST-IC-ELITE 1943 APPLICATION CONFIGURATIONS ............................................................................................................... 11
FIGURE 3. GST-IC-ELITE-1943 PERSPECTIVE VIEW ........................................................................................................................................ 13
FIGURE 4. GST-IC-ELITE-1943 EXTERIOR VIEW............................................................................................................................................... 14
FIGURE 5. GST-IC-ELITE-1943 INTERIOR VIEW ............................................................................................................................................... 15
FIGURE 6. GST-IC-ELITE-1943 EXTERNAL INTERFACE .................................................................................................................................. 16
FIGURE 7. GST-IC-ELITE-1943 BLOCK DIAGRAM CONFIGURATION .......................................................................................................... 21
FIGURE 8. GST-IC-ELITE-1943 SIGNAL AND DATA FLOW .............................................................................................................................. 22
FIGURE 9. GST-IC-ELITE-1943 THE WAY TO SELECT THE OPERATING CHANNEL (BAND) ............................................................... 23
FIGURE 17. A BAND SHUTDOWN CONDITION: START TO ASD ALGORITHM ONLY CDMA BAND ............................................. 25
FIGURE 18. TOTAL BAND SHUTDOWN CONDITION: START TO ASD ALGORITHM FINAL AMP ......................................................... 25
FIGURE 19. GST-IC-ELITE-1943 ICS FUNCTION OPERATION ...................................................................................................................... 26
FIGURE 20. GST-IC-ELITE-1943 ILC FUNCTION INTERWORKING .............................................................................................................. 26
FIGURE 21. THE WAY TO FIX THE BRACKET ON THE POLE (NORMAL TYPE) ....................................................................................... 51
FIGURE 22. INSTALLING THE STEEL BAND ......................................................................................................................................................... 52
FIGURE 23. THE WAY TO USING A STEEL BAND ............................................................................................................................................... 52
FIGURE 24. THE WAY TO HANG THE SYSTEM FOR POLE MOUNTING ...................................................................................................... 53
FIGURE 25. THE WAY TO FIX FIRMLY THE SYSTEM FOR POLE MOUNTING ............................................................................................ 54
FIGURE 26. DETACH THE UNUSED BRACKET AND BOLT ............................................................................................................................... 55
FIGURE 27. FIXING THE BRACKET FOR INSTALLING A WALL MOUNT ...................................................................................................... 56
FIGURE 28. THE WAY TO HANG THE SYSTEM FOR WALL MOUNTING ..................................................................................................... 57
FIGURE 29. THE WAY TO FIX FIRMLY THE SYSTEM FOR WALL MOUNTING ............................................................................................ 57
FIGURE 30. RECOMMENDED DISTANCE FOR INSTALLING SYSTEM MOUNTING .................................................................................... 58

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TABLE 1. GST-IC-ELITE-1943 UNIT CONFIGURATION .................................................................................................................................... 15
TABLE 2. GST-IC-ELITE-1943 EXTERNAL INTERFACE DESCRIPTION ........................................................................................................ 16
TABLE 3. GST-IC-ELITE-1943 RF PERFORMANCE DESCRIPTION ................................................................................................................ 18
TABLE 4. GST-IC-ELITE-1943 ICS GENERAL PERFORMANCE ....................................................................................................................... 19
TABLE 5. GST-IC-ELITE-1943 OPERATION BAND FOR CDMA BAND CLASS 1 ......................................................................................... 19
TABLE 6. GST-IC-ELITE-1943 OPERATION BAND FOR LTE BAND 25 ........................................................................................................ 19
TABLE 7. GST-IC-ELITE-1943 MECHANICAL & ENVIRONMENT CONDITIONS ......................................................................................... 20
TABLE 8. GST-IC-ELITE-1943 SIGNAL AND DATA FLOW ................................................................................................................................ 22
TABLE 9. GST-IC-ELITE-1943 STATUS MONITORING AND CONTROL PARAMETERS ............................................................................. 29
TABLE 10. MONITORING ALARM PARAMETERS.................................................................................................................................................. 31
TABLE 11. GST-IC-ELITE-1943 INSTALLATION ACCESSORIES ...................................................................................................................... 48

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1. General
1.1. Purpose
This document introduces features, specifications, structures and operation guideline for
the GST-IC-ELITE-1943 CDMA & LTE Repeater
1.2. Copyright
All text and image in this document are subject to the copyright of GS Instech Co., Ltd.
This document may not be reproduced, distributed, or modified without the written permission of
GS Instech Co., Ltd.

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©2016 GS Instech Co., Ltd. All rights reserved.
1.3. FCC Warning Statements
FCC Warning Statement for system is follows. Must attach the label under manufacturing.
Figure 1. FCC/ UL Certification Statement

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FCC Part 15.105 statement (Class A)
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
FCC Part 15.21 statement
Any changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate this equipment.
Home/ personal use are prohibited
Use of unauthorized antennas, cables, and/or coupling devices not conforming with
ERP/EIRP and/or indoor‐only restrictions is prohibited

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©2016 GS Instech Co., Ltd. All rights reserved.
2. Introduction
2.1. System Overview
GST-IC-ELITE-1943 is designed to improve coverage and capacity of CDMA Band Class 1 and
LTE Band25 services in all shadowed and blanked areas of Sprint network.
GST-IC-ELITE-1943 receives and improves weak signals as cancelling the multi-path interference
even if there is a lack of isolation between Donor and Service antenna.
This solution does not request any costs for Backhaul installation, so will save OPEX and CAPEX.
Figure 2. GST-IC-ELITE 1943 Application Configurations

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2.2. Main Features
• Maintain the Quality of Demodulation performance on the Overlay-Cell Region using Delay-Reduction
Technology ( Less than 4us for CDMA & LTE)
• Provide the SNMP Solution
• Ensure the Uplink-Sensitivity and Suppress Rising-UL noise floor under high out-power at Downlink
using PIMD-Reduction Technology ( Less than 153dBc)
• Excellent RF Specifications
- High Gain: more than 105dB
- Low Noise figure under all system gain condition: Less than 4dB
- Grate Performance of Interference Cancellation: G=I+15dB
- High Rejection: More than -50dBc at Band Edge ± 450 KHz
• Adaptable functions for Operation
- RS (Pilot) Aware, Smart ALC & ASD, Attenuator for each Band
- Total Bandwidth of 25MHz Configurable in 1.25MHz Step for CDMA up to 15MHz and
5MHz Step for LTE up to 10MHz
• Complies with NEMA 4 (equal to IP66) for Outdoor application
• Apply for Cascade 6 chain installation
• FCC Part 24, Part 15B class A
• UL 60950-1, 60950-22 certificated

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3. System Design
3.1. Perspective View
Figure 3. GST-IC-ELITE-1943 Perspective View

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3.2. Exterior View
Figure 4. GST-IC-ELITE-1943 Exterior View

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3.3. Interior View
Figure 5. GST-IC-ELITE-1943 Interior View
Input: 110Vac~240Vac/ Output (DC):+32V, 24V, 5.6V
For EMS using Wireless Modem
For generating High RF Power
ICM
(Interference Cancellation Module)
Contains RF Up & Down Convertor, Digital Signal Processing
and Controller Unit
Separate Downlink and Uplink Frequency Band
Connect the Wireless Modem Output
For Status Monitoring and Control from Server
For Status Monitoring and Control from Server
Table 1. GST-IC-ELITE-1943 Unit Configuration

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3.4. External Interface
Figure 6. GST-IC-ELITE-1943 External Interface
Local Maintenance & Modem Activation
Local: RJ-45
SLOT: AUSIM-115AADA0-R02
Remote Antenna Control Port (AISG 2.0)
FAN Power & Alarm Connection
7/16 DIN Female with 30dB Coupler
Service Antenna Connection
7/16 DIN Female with 30dB Coupler
System Total Alarm Indication
Maintain Humidity & Temp Inside
Table 2. GST-IC-ELITE-1943 External Interface Description

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4. System Specification
4.1. RF Performance
+43dBm (20W) max.
CDMA 10W+LTE 10W / Total
【CDMA】 15MHz max/ 1.25MHz Step
【LTE】 10MHz max (9.01MHz for OBW)/ 5MHz Step
> 50dBc @ Channel OBW ±450KHz
> 50dBc @ Channel OBW ±1MHz
> 75dBc @ Channel OBW ±3.5MHz
No Feedback & Max/ Min Input
G=I+15dB & Fading 10Hz G=I
No Feedback & Max/ Min Input
G=I+15dB & Fading 10Hz G=I

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Downlink
Transmitter
Intermodulation
> 153dBc Suppress Uplink Intermodulation Product
Uplink
Transmitter
Intermodulation
> 153dBc Suppress Downlink Intermodulation Product
Less than 4dB @ Min & Max Gain
<-5.5dBm @50KHz ≤ ∆f < 5.05MHz (RBW: 100KHz)
<-12.5dBm @5.05MHz ≤ ∆f < 10.05MHz (RBW: 100KHz)
<-13dBm @10.5MHz ≤ ∆f < 15MHz (RBW: 1MHz)
> 45dBc @±5MHz, > 45dBc @±10MHz
Spurious Emission
For CDMA
out
> 33dBm; -55dBc with a 30KHz RBW
28dBm P
out
<33dBm; -22dBm with a 30KHz RBW
-13dBm / 1 kHz: 9 kHz < f < 150 kHz
-13dBm / 10 kHz: 150 kHz < f < 30 MHz
-13dBm/100 kHz: 30 MHz < f < 1 GHz
-13dBm / 1 MHz: 1 GHz < f < 12.75 GHz
3rd Intermodulation
Emission
< -13dBm @ Modulated Input 2 tones -65dBm each
Table 3. GST-IC-ELITE-1943 RF Performance Description

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4.2. ICS General Performance
Gain Re-Tracking Time after reset
-10dB < Gain < 10dB
-20dB < Gain < 20dB
Table 4. GST-IC-ELITE-1943 ICS General Performance
4.3. Frequency Information
4.3.1. CDMA Band CLASS 1
Transmit frequency band (MHz)
Table 5. GST-IC-ELITE-1943 Operation Band for CDMA Band Class 1
4.3.2. LTE Band 25
Center Frequency (100KHz step)
Table 6. GST-IC-ELITE-1943 Operation Band for LTE Band 25