Shireen 900MHz / 868MHz Indoor Helium Amplifier
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Product Overview
Shireen’s 900MHz / 868MHz Indoor Helium amplifier is designed for Helium networks and radio systems requiring enhanced receive sensitivity without transmit amplification. Featuring a bypassed transmit path with minimal signal loss, ultra-low noise LNA performance, and high-speed switching, this amplifier significantly improves receive performance while maintaining exceptional efficiency. Supporting both 902–928MHz and optional 863–870MHz operation, it is ideal for IoT, LoRa, Helium, and long-range wireless applications.
Key Features
Tx Bypass Design
Tx path is bypassed with minimum signal loss for radios with strong output power that only need receive gain
Ultra-Low Noise LNA
Lowest noise figure LNA at 0.9 dB improves receive sensitivity by many folds
High-Speed Switching
High-speed switching circuit between Tx and Rx at 400ns
Helium Compatible
Designed specifically for Helium and all radios with strong output power
Receive Filtering
Rx side fitted with 902~928MHz or 863~870 MHz bandpass filter
Extreme Efficiency
Consumes only 45mA of current at 6V DC
Max Radio Power
Supports 5Watt max radios
Durable Construction
CNC machined aluminum housing with sturdy N female connectors
Complete Kit
Includes amplifier, universal power supply (110~240VAC to 6V DC), and cable assembly with RP SMA Male to N Male connectors
Industrial Temperature
Operates from -40°C to +70°C
Compact Size
Small form factor at 3.4" x 1.5" x 0.9" weighing only 3.3 Oz
Technical Data
| Parameter | Rating / Detail |
|---|---|
| Product Name | 900MHz or 868MHz Helium Amplifier |
| Item Number | SHR90309 |
| Operating Range | 902 - 928 MHz (863~870 MHz optional) |
| Operating Mode | TDD, Time Division duplex |
| Radio Input Power | 5Watts max |
| Transmit Gain | -1 dB |
| Transmit Input Power | 0dB min +/- 1 (trigger point) 37 dB max |
| Receive Gain | 15 dB +/- dB |
| Switching Speed | 400ns |
| Noise Figure | 0.9 dB |
| LED Indicators | Red for Receive Green for Transmit |
| Power Consumption @ 6V DC | Rx: 45mA |
| Operating Temp | -40 °C to + 70 °C |
| Dimensions | 3.4" x 1.5" x 0.9" |
| RF Connectors | Type N females |
| DC Input | Via DC Jack 2.5mm |
| Weight | 3.3 Oz (94 grams) |
| Kit Includes | Indoor bi-directional amplifier, Universal power supply (110~240VAC to 6V DC), One cable assembly with RP SMA Male to N Male connectors |
Certifications
