BOOSTERS
Trunk Amplifier
MODEL:
RPT868 (GSM 900MHz) / RPT888 (GSM 1800MHz) / RPT898 (GSM 1900MHz)
RPT918 (CDMA 450MHz) / RPT938 (CDMA 800MHz) / RPT998 (CDMA 1900MHz)
RPT658 (WCDMA)
The Trunk Amplifier is designed to compensate the power attenuation caused by signal transmission and distribution among the passive indoor signal distribution system in high buildings. With lower gain and uplink output power than repeaters, a Trunk Amplifier is usually working as a relay for the repeater or micro-cell to amplify the donor signal where the signal level is not high enough for further distribution.
Due to its low ripple level, less system delay and low noise figure, it can effectively avoid the bad call quality caused by multiple level of amplification and accumulated noise level among the indoor signal distribution system.
High-Power Trunk Amplifier
Low-Power Trunk Amplifier
Related Links
Features
Application
Specifications
Features
- Aluminum-alloy casing has high resistance to dust, water and corroding;
- Low noise figure, spurious emission and in-band ripple;
- Adopting filter with highly selectivity and high out-of-band suppression;
- RS-232 ports provide links to a notebook for local supervision and to the built-in wireless modem to communicate with the NMS (Network Management System) that can remotely supervise working status of trunk amplifiers and download operational parameters to trunk amplifiers.
Application Range
To extend the signal coverage of repeaters or micro-cells among the indoor signal distribution system.
- Indoor: Inside high buildings, subways, tunnels, underground markets, underground parking lots, hotels, offices, …
Application Diagram
Application Diagram of Trunk Amplifier
Specifications of GSM Trunk Amplifier
| Uplink | Downlink | |
|---|---|---|
| Working Frequency (customizable) | 890~915MHz / 1710~1725MHz / 1850~1910MHz | 935~960MHz / 1805~1820MHz / 1930~1990MHz |
| Nominal Gain | 45±3 dB | |
| ALC (automatic level control) | @ maximum output power: input signal level increases by 10dB, increase of output level will be < 2dB or closed | |
| Gain Adjustment Range | 1~31dB @ step of 1dB | |
| Frequency Error | ≤ ±0.05ppm | |
| Output Power | 0 dBm | 27~37 dBm (0.5~5 W) |
| Noise Figure | ≤ 5dB | -- |
| System Delay | ≤ 1.5μSec | |
| Voltage Standing Wave Ratio (VSWR) | ≤ 1.4 | |
| In-Band Ripple | ≤ 2dB p-p | |
| Spurious Emission | < -36dBm @ 9kHz~1GHz < -30dBm @ 1GHz~12.75GHz |
|
| In-Band Intermodulation Attenuation | < -36dBm @ 9kHz~1GHz < -30dBm @ 1GHz~12.75GHz |
|
| I/O Impedance | 50Ω | |
| RF Connector | N-Type (Female) | |
| Temperature Range | Operation: -25°C ~ +55°C / Storage: -30°C ~ +60°C | |
| Relative Humidity Range | ≤ 95% (non condensing) | |
| Power Supply (customizable) | DC +24V / AC 220V±15%, 50Hz / AC 110V±15%, 50Hz | |
| Casing Level | Output power @27~30dBm: IP31 Output power @33~37dBm: IP65 |
|
| Dimensions | Output power @27~30dBm: 385mm X 300mm X 130mm Output power @33~37dBm: 570mm X 325mm X 215mm |
|
| Weight | Output power @27~30dBm: 8kg Output power @33~37dBm: 27kg |
|
| Remote Monitoring/Control via NMS | Supported | |
Specifications of CDMA Trunk Amplifier
| Uplink | Downlink | |
|---|---|---|
| Working Frequency (customizable) | 450~457.5MHz / 824~849MHz / 1880~1890MHz | 460~467.5MHz / 869~894MHz / 1960~1970MHz |
| Nominal Gain | 45±3 dB | |
| ALC (automatic level control) | @ maximum output power: input signal level increases by 10dB, increase of output level will be < 2dB or closed | |
| Gain Adjustment Range | 1~31dB @ step of 1dB | |
| Frequency Error | ≤ ±0.05ppm | |
| Waveform Quality Factor | > 0.95 | |
| Output Power | 0 dBm | 27~37 dBm (0.5~5 W) |
| Noise Figure | ≤ 5dB | -- |
| System Delay | ≤ 1.5μSec | |
| Voltage Standing Wave Ratio (VSWR) | ≤ 1.4 | |
| In-Band Ripple | ≤ 2dB p-p | |
| Spurious Emission | ≤ -36dBm | |
| In-Band Intermodulation Attenuation | ≤ -15dBm/30kHz | |
| I/O Impedance | 50Ω | |
| RF Connector | N-Type (Female) | |
| Temperature Range | Operation: -25°C ~ +55°C / Storage: -30°C ~ +60°C | |
| Relative Humidity Range | ≤ 95% (non condensing) | |
| Power Supply (customizable) | DC +24V / AC 220V±15%, 50Hz / AC 110V±15%, 50Hz | |
| Casing Level | Output power @27~30dBm: IP31 Output power @33~37dBm: IP65 |
|
| Dimensions | Output power @27~30dBm: 385mm X 300mm X 130mm Output power @33~37dBm: 570mm X 325mm X 215mm |
|
| Weight | Output power @27~30dBm: 8kg Output power @33~37dBm: 27kg |
|
| Remote Monitoring/Control via NMS | Supported | |
Specifications of WCDMA Trunk Amplifier
| Uplink | Downlink | ||
|---|---|---|---|
| Working Frequency (customizable) | 2110~2170MHz | 1920~1980MHz | |
| Nominal Gain | 40±3 dB | ||
| ALC (automatic level control) | @ maximum output power: input signal level increases by 10dB, increase of output level will be < 2dB or closed | ||
| Frequency Error | ≤ ±0.01ppm | ||
| Gain Adjustment Range | 1~31dB @ step of 1dB | ||
| Waveform Quality Factor | > 0.95 | ||
| Output Power | 0 dBm | 27~37 dBm (0.5~5 W) | |
| Adjacent Channel Power Ratio (ACPR) | P ≥ 31 dBm | (Offset 5MHz) ≤ 49dBc (Offset 10MHz) ≤ 54dBc |
|
| P < 31 dBm | (Offset 5MHz) ≤ 50dBc (Offset 10MHz) ≤ 55dBc |
||
| Noise Figure | ≤ 4dB | -- | |
| System Delay | ≤ 5.0μSec | ||
| Voltage Standing Wave Ratio (VSWR) | ≤ 1.4 | ||
| In-Band Ripple | ≤ 3dB p-p | ||
| Spurious Emission and IMD3 | Comply with 3GPP TS 25.106 V6.0.0 | ||
| Peak Code Domain Error (PCDE) | ≤ -35dB | ||
| I/O Impedance | 50Ω | ||
| RF Connector | N-Type (Female) | ||
| Temperature Range | Operation: -25°C ~ +55°C / Storage: -30°C ~ +60°C | ||
| Relative Humidity Range | ≤ 95% (non condensing) | ||
| Power Supply (customizable) | DC +24V / AC 220V±15%, 50Hz / AC 110V±15%, 50Hz | ||
| Casing Level | Output power @27~30dBm: IP31 Output power @33~37dBm: IP65 |
||
| Dimensions | Output power @27~30dBm: 385mm X 300mm X 130mm Output power @33~37dBm: 570mm X 325mm X 215mm |
||
| Weight | Output power @27~30dBm: 8kg Output power @33~37dBm: 27kg |
||
| Remote Monitoring/Control via NMS | Supported | ||