YR-AMPL868-E 868MHz Helium Amplifier with Adjustable Gain

YR-AMPL868-E 868MHz Helium/Lora Amplifier with Adjustable Gain

YR-AMPL868 is a bi-directional LoRa signal amplifier suitable for low-power wireless products within the frequency range of 863MHz to 870MHz (typical frequency: 868MHz). This product is ultra-slim and features three built-in waterproof rings, conforming to IP67 standards. It can be used in EU wireless data collection systems operating at 863MHz to 870MHz, such as Helium Hotspot Miner, LoRa gateway, etc. The product includes two built-in SAW filters in the receiving path, significantly enhancing performance against interference. With 2 DIP switches inside, customers can adjust Rx (9~16dB) and Tx (0~7dB) according to various user environments and situations.

Performance Characteristics:

• Built-in intelligent receiving/transmitting discrimination circuit, allowing operation without external devices providing switching control signals for reception/transmission.
• Transmitter gain is adjustable from 0dB to 7dB, compatible with a variety of wireless devices with different transmission powers. Receiver gain is adjustable from 9dB to 16dB.
• The receiving/transmitting link features extremely high isolation, allowing the receiving link to withstand strong external interference without causing loop self-oscillation.
• Compatible with LoRa, FSK/ASK/ OOK/MSK/GFSK, and other modulation modes.

Specifications:

Product Connection Diagram and Peripheral Connections

Connector:

This product uses SMA-type connectors. The default setting has the RF OUT(ANT) end as SMA-female, and the RF_IN/DC (Miner) end as RP-SMA-female. The orientation of the connectors can be customized based on customer requirements.

Power Supply:

The amplifier must be powered through a pre-amplifier (DC adapter 6V/12V 1A).

RX/TX GAIN SETTING

As shown in the image above, the blue DIP switch is used to set the transmitter gain, while the red DIP switch is used to set the receiver gain. The position (ON↓/X) of switches 1, 2, and 3 represents the corresponding Rx/Tx gain, listed in the table below.

Package Includes: