AB-89 Bi-directional Signal Amplification Module 850MHz-930MHz Two-Way Power Amplifier For Helium for LORA FSK ASK OOK MSK GFSK

This module Without Filter  .

Introduction

The AB-89 Series Bi-directional signal amplification module is suitable for micro-power wireless products in the frequency range of 850MHz-930MHz.

It is suitable for various IoT wireless data acquisition products working in the 850MHZ-930MHZ frequency band。

Main characteristics

1. Built-in TX/RX automatic switching circuit, TX/RX status can be switched independently without external control signal.

2. It works in RX status by default and enhances the receiving signal. When the transmitting signal of the superior device is detected, the module instantly switches to the TX status.

3. The TX gain is adjustable, which is convenient to be compatible with wireless devices with different transmission powers.

4. Compatible with various modulation methods such as LORA and FSK/ASK/OOK/MSK/GFSK. 

AB-89 850MHz-930MHz Amplification Specifications

Working frequency：	850MHz –930MHz
RX gain：	11dB±2dB
NF：	≤1.5dB
TX gain：	0dB –10dB (±2dB)Adjustable
TX/RX switching threshold：	-2dBm
TX input power range：	1dBm - 31dBm
Maximum transmit power：	31dBm (1.3w)
Status indication ：	RX status： Green light is on, Blue light is off
	TX status： Blue light is on, Green light is off
Operating Voltage ：	5V（4.75V-5.25V）
Working current ：	RX status ：10mA（±3mA）
	TX status ：≤720mA
Overall dimension :	79mm*64mm*23mm(L*W*H)

Tips:  The output power of the upper-level device must be at least 3dB higher than the switching threshold, which means that the output power of the upper-level device cannot be lower than 1dBm, otherwise it may cause unstable operation.

Chang the TX Gain

When the potentiometer is turned counterclockwise to the limit, the gain is 0dB；

When the potentiometer is turned clockwise to the limit, the gain is 10dB (±2dB).

Amplifies bi-directional signals from 850MHz to 930MHz; features SMA-K antenna and LED status indicator for easy monitoring.

This bi-directional signal amplification module operates between 850MHz and 930MHz, with a gain of approximately 13.002 dB, suitable for networks that require reliable communication.

868MHz Filter

Sound meter bandpass 868MHz filter. Bandwidth 867-869MHz.

Features.

1 : Small size, light weight, small insertion loss, center frequency of 868MHz.

2: Gold-plated SMA connectors on both sides (one side is sma female connector with one male inner thread; the other side is sma male connector with one female inner thread)

(one side is sma male connector with one inner threaded pin), double-sided circuit board design, high mechanical strength and stable electrical performance.

High mechanical strength and stable electrical performance.

3: With good passband ripple coefficient and out-of-band suppression capability.

4: unique shielding design, beautiful and practical.

5:Imported SMD components, stable performance.

Maximum withstand power not more than 20mW!

6: Size: 35mm * 7mm * 6. 5mm

7: Weight: 5.42g

915MHz Filter

Bandpass 915MHz filter for RFID receivers. Bandwidth 902-928MHz.

Features.

1: Small size, light weight, small insertion loss, center frequency of 915MHz.

2: Gold-plated SMA connectors on both sides (one side is sma female; the other side is sma male), double-sided circuit board design, high mechanical strength and stable electrical performance.

3: With good passband ripple coefficient and out-of-band suppression capability.

4: Unique shielding design, beautiful and practical.

5: Imported SMD components, stable performance.

Maximum withstand power not more than 1W!

6: Size: 35mm * 7mm * 6.5mm

7: Weight: 5.42g

868MHz 868 to 870 MHz /915MHz   902 ~ 928 MHz bandpass SAW filter For remote control Fro IoT  RFID Radio Amplifier Mudule For Helium Mining Filter 

Specifications:

The 868M filter bandwidth is 2MHz, and the 915M filter bandwidth is 26MHz. The cut-off characteristics of these two filters are steep. It can effectively filter out out-of-band signals, reduce noise, and increase dynamic range.

868M filter passband: 868 to 870 MHz

915M filter passband: 902 ~ 928 MHz

In-band insertion loss: 2.0 to 2.5 dB (typ: 2.2 dB)

Interface: SMA outer screw inner hole

Product application: The filter is mainly used for helium mining machines Internet of things equipment RFID remote control

Package Include:

868MHz 868 to 870 MHz (Optional)

915MHz   902 ~ 928 MHz  (Optional)

AB-89 Bi-directional Signal Amplification Module amplifies signals within the frequency range of 850MHz to 930MHz, suitable for various applications.

AB-89 Bi-directional Signal Amplification Module amplifies signals in the range of 850MHz to 930MHz, suitable for use with a network analyzer.

Compact module amplifies bi-directional signals between 850MHz and 930MHz, featuring an integrated 868MHz SAW filter with dimensions of 22mm, 8mm, and 38mm.

Compact SAW filter for 915MHz frequency range (902-928MHz), amplifying bi-directional signals with optimal performance and stability.