Features:
GaN-based high-efficiency architecture – Utilizes gallium nitride (GaN) technology to achieve 50W output power while maintaining low operating current (≤3.5A at 48V) and reduced thermal footprint.

Independent uplink and downlink signal conditioning – Supports downlink gain adjustment (≥25dB range) and ALC control (≥10dB range), with uplink noise figure ≤3dB for improved receiver sensitivity.

Real-time supervisory system with RS485 telemetry – Provides continuous monitoring of forward power, temperature, VSWR, and fault status, with programmable alerts for over-power (+2dB threshold) and over-temperature (85°C shutdown / 65°C resume).

Multi-interface mechanical layout – Features mixed connector types (MCX for PA input, SMA for others), housed in a compact 150×100×23 mm enclosure optimized for 48V GaN-based repeater and small-cell deployments.

Technical Specification:
Product Name:
1. UZI-FDD-B1-2.1G-50W-1510-48VGaN
2. UZI-FDD-B3-1.8G-50W-1510-48VGaN
3. UZI-FDD-B5-800M-50W-1510-48VGaN
4. UZI-FDD-B7-2.6G-50W-1510-48VGaN
5. UZI-FDD-B8-900M-50W-1510-48VGaN
Cautions:
1. Gallium nitride, 48V dual-line power supply
Items:
Uplink (UL) & Downlink (UL) Specifications:
Frequency Range:
1. B1:
1. UL:1920-1980MHz
2. DL:2110-2170MHz
2. B3
1. UL:1710-1785MHz
2. DL:1805-1880MHz
3. B5
1. UL:824-849MHz
2. DL:869-894MHz
4. B7
1. UL:2500-2570MHz
2. DL:2620-2690MHz
5. B8
1. UL:880-915MHz
2. DL:925-960MHz
Max Gain:
1. UL:25±2dB
2. DL:53±2dB
Maximum Output Power:
1. UL:Uncontrolled
2. DL:44±1dBm
Maximum Input Level:
1. UL:NONE
2. DL:+10dBm
Gain Adjustment Range:
1. UL:NONE
2. DL:≥25dB
ALC Range:
1. UL:NONE
2. DL:≥10dB
Gain Flatness:
1. UL:NONE
2. DL
1. ATT10dB： ≤±1dB
2. ATT20dB： ≤±1dB
3. ATT25dB： ≤±1.5dB
In-Band Ripple:
1. UL:≤2dB
2. DL:≤2dB
Noise Figure:
1. UL:≤3dB
2. DL:NONE
EVM:
≤5% (Peak-to-Average Power Ratio 10.0dB)
VSWR:
1. ≤1.4 (Test condition: power on for testing after turning off the uplink power amplifier.)
2. ≤1.4 (Test condition: power on for testing after turning off the downlink power amplifier.)
Operating Voltage:
48V
Operating Current:
≤3.5A
Baud Rate:
19200
Working Temperature:
-40～+55℃
Over-Temperature Protection:
Alarm and shutdown at +85℃, resume operation at 65℃
Monitoring Functions:
1. For the wiring diagram of the monitoring port, refer to the outline dimension drawing; RS485 interface communication
1. Settings: switch, gain;
2. Query: module status (including power amplifier status, over-power alarm, over-temperature alarm), power amplifier temperature, power amplifier ATT value, detected forward power;
3. Over-power alarm: alarm when the power exceeds the maximum output power by +2dB;
4. Over-temperature alarm: recommended threshold is +85℃; alarm is triggered when the detected temperature exceeds +85℃, and the power amplifier is turned off simultaneously, then turned on at +65℃;
5. Power amplifier temperature detection: the detection range shall include but not be limited to -25℃～+85℃, with a detection accuracy of ±3℃;
6. Forward power detection: the detection range shall be greater than 20dB, with a detection accuracy of less than ±1dB;

Connecters:
4 connectors: PA IN is an MCX connector, and the rest are SMA connectors.
Mechanical dimensions:
150*100*23