The RigExpert 2.1GPA-LD miniature bi-directional RF signal amplifier

The RigExpert 2.1GPA-LD miniature bi-directional RF signal amplifier

The RigExpert 2.1GPA-LD miniature bi-directional RF signal amplifier

Tiny and powerful amplifier - it's real

2110–2200 MHz Operation

Automatic Mode Switching: VOX with adjustable threshold

Tiny Size

Low Voltage Operation, 5 V Power Supply

15 dB TX RF gain

12 dB RX RF gain

34dBm CW TX Power

36 dBm Pulse TX Power

ESD Protection

The RigExpert 2.1GPA-LD is a miniature bi-directional RF signal amplifier designed for use in equipment powered by 5V DC. It operates in the 2110–2200 MHz frequency range, offering:

  • 15 dB gain on transmission
  • 12 dB gain on reception
  • Up to 2.85 W output power (Pulse) and 2.58 W (CW)
  • VOX-based automatic switching between receive and transmit modes, with adjustable sensitivity
  • Compact dimensions and passive cooling

This amplifier is ideal for UAV communication systems, SDR radios, amateur radio, IoT applications, and lab test setups.

Applications

  • UAV control signal boosting
  • Software-defined radio (SDR)
  • Amateur radio
  • IoT systems
  • Laboratory and test equipment

Key Features

  • Frequency Range: 2110–2200 MHz
  • Transmit Gain: 13–15 dB
  • Receive Gain: 12–13 dB
  • Output Power (CW): 2.58 W @ 2150 MHz (input 20 dBm)
  • Output Power (Pulse): 2.85 W @ 2150 MHz (input 20 dBm)
  • Input Power Range: 3–20 dBm
  • Power Supply: 5V (4.75–5.25 V)
  • Power Consumption: 10 W (TX), 0.4 W (RX)
  • Automatic Mode Switching: VOX with adjustable threshold
  • Connectors: MMCX
  • Cooling: Passive
  • Protection: ESD/EMI shielding
  • Dimensions: 38 × 56 × 13.2 mm
  • Weight: 46 g

Absolute Maximum Ratings

  • Max Input Power: 20 dBm (adjustable upon request)
  • Min Input Power: 3 dBm
  • Max Supply Voltage: 5.25 V

Laboratory testing was conducted at a supply voltage of 5.00 V and a temperature of +22°C.