Shireen 900 MHz 25 Watt Indoor Bi-directional Amplifier
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Product Overview
Shireen’s 900MHz indoor bi-directional amplifier delivers high-power RF performance for 902–928 MHz radio systems requiring reliable signal amplification and enhanced receiver sensitivity. Providing 25 Watts output power with high transmit gain and integrated low noise amplification, this amplifier is engineered for demanding indoor wireless applications. Housed in a rugged anodized aluminum enclosure, it offers efficient thermal management and dependable operation across industrial, wireless, and specialized communication deployments.
Key Features
High Power Output
25 Watt (44 dBm) high power bi-directional amplification for 902~928 MHz band
Radio Compatibility
Works equally well with all types of radios
High Transmit Gain
Provides 24 dB of gain which can be reduced at the factory if needed
Ultra-Low Noise LNA
Built-in LNA with 15 dB gain and ultra-low 1.2 dB noise figure improves receive sensitivity
Receive Filtering
Band-pass filter gives added protection against out-of-band noise
Optimized Thermal Design
Housed in machined, anodized aluminum enclosure with appropriate cavities and contacts - no heatsink needed
Complete Indoor Kit
Includes indoor amplifier and 3ft flying lead
Industrial Temperature
Operates from -40°C to +70°C (158°F)
Wide Voltage Range
Accepts 24 to 30 VDC input
Warranty
2-year warranty on all Shireen products
Technical Data
| Parameter | Rating / Detail |
|---|---|
| Product Name | 900 MHz, 25Watt Amplifier - Indoor unit |
| Item Number | 90326 |
| Operating Range | 902 - 928 MHz |
| Operating Mode | TDD (Time Division Duplex) |
| Transmit Peak Power | 44 dBm, 25 Watt |
| Transmit Gain | 24 dB max (can be reduced at the factory) |
| Transmit Input Power | 0 dBm min 20 dBm max |
| Receive Gain | 15 dB (+/-1 dB) |
| Noise Figure | <3 dB |
| LED Indicators | Red for Receive (default mode), Green for Transmit |
| Power Consumption | 140mA Rx, 1400 mA Tx @ 28VDC |
| Operating Voltage | 24 to 30 VDC |
| Operating Temperature | -40 °C to +70 °C (158 °F) |
| Dimensions | 6" x 3.5" x 1.2" (152.4mm x 88.9mm x 41.91mm) |
| Enclosure | Aluminum housing with anodized finish |
| Connectors | Type N Female |
| Weight | 1.25 lb (570g) |
| Kit Includes | Indoor Amplifier, 3ft Flying Lead (Power Supply not included) |
| Warranty | 2-year warranty |
Certifications
