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Tower Mounted Amplifier or TMAs, significantly enhance both quality and coverage by optimizing system performance. It reduces system noise and improves uplink sensitivity. Installation JAS(*) Dual duplex TMA GSM, DCS or UMTS in new networks reduces initial investment by simplifying site requirements. This means faster roll out and improved returns on investment. In existing networks, TMAs create the potential to generate extra traffic and contribute to increased revenue. The TMA really pays off for itself within the first few months.
JAS(*) TMA comes with a host of special features such as Gore-tex for water proofing, cross input / output port design and a very compact form to reduce the effect of condensation, thereby guaranteeing long, consistent and low maintenance service under Indian environ.
Salient Features
 High Tx / Rx cell coverage.
Low Tx Loss
High MTBF
High Reliability
Higher base station receiver sensitivity.
Stronger signal, wider coverage.
Fewer call drops, increased talk time,
Field proven excellent performance.
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| Parameter |
Specification |
| Part no. |
JAS-900STMA |
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Tx |
Rx |
| Frequency Range |
935 ~ 960MHz |
890 ~ 915MHz |
| Insertion loss |
0.6dBTyp.(0.7dB@Temp.) |
2.3dB Max. |
Nominal Gain
|
- |
12.0dB±1dB |
| Noise Figure typ (2.4dB@Temp.) |
;- |
1.8dB |
| Third Order Intercept |
- |
+20dBm Min. |
| Intermod Product (Two 43dBm carriers in Tx Band) |
160dBc Min. |
- |
| Downlink Band Rejection |
|
80dB Min. |
| Alarm Management |
CWA Handling |
| 230mA±25mA (Alarm status) |
| 230mA±25mA |
| VSWR |
1.3:1 |
| Max Power Handling |
-112 Max |
| DC Supply Voltage |
+12Vdc / 120mA Typ. |
| Impedance |
50Ω |
Temperature Range
|
-40℃ ~70℃ |
| Lightning protection |
5kA, 8/20uS pulse |
| Environmental Rating |
IP-67 |
| MTBF |
900,000 Hours |
| RF Connectors |
DIN(7/16) female |
| Dimensions (WxDxH) |
251.5X129.5X89.0(mm)
(Without Connector & Brackets) |
| Mounting |
Pole & Wall Mount |
TECHNICAL SPECIFICATIONS-Bias Tee
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| Part No. |
Description |
| Frequency Range |
800.0 ~ 2100.0MHz |
| Insertion loss |
0.2dB Max. |
| Return Loss |
20.0dB Min. |
| Isolation |
50.0dB Min. |
| Lightning protection |
5kA, 8/20uS pulse |
| IMD @2-tone 20W |
160dBc (-117dBm) |
| Continuous average Power (peak) |
200W |
| DC Supply Voltage |
1A Max. |
| Environmental Rating |
IP-67 |
| RF Connectors |
DIN(7/16) female, male,
SMA female |
| Dimensions (WxDxH) |
64.5X46.0X34.0(mm) |
| Temperature Range |
-40℃ ~+70℃ |
Ordering Information Table
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| Part No. |
Description |
| JAS-900STMA |
JAS Single Tower Mounted Amplifier GSM 900MHz 12dBi gain, with DIN (7/16) Female connector. |
| JAS-800~2100-BT |
JAS Bias Tee (Current Injector) – CDMA 800~UMTS 2100 With SMA Female connector for the current injector,
DIN (7/16) Female connector on the TMA end and DIN (7/16) Male connector on the BTS end |
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