Configure Lora end node for maximum range using signal amplifier

We are developing an MVP IOT Project using Heltec WiFi LoRa 32 (V2), but we could only get data transmission up 100 meters (LOS).

Example of the place where we want to use in this MVP

On google maps you can type this information and understand about the place.

Origin: -3.218849, -59.674508

Target: -3.197030, -59.825870

Those coordinates are not Line of Sight with a dense rain forest, we can use other strategies to overcome this issue(tower communication, add more nodes etc), but first of all we need to get maximum capacity of our current hardware on LOS

Our setup:

*Heltec WiFi LoRa 32 (V2) (433MHz) [login to view URL]


Brand Name: xls antenna

Model Number: xls-1145-433

Name: Data transmit 433Mhz Antenna

Frequency Range: 400-470Mhz

Gain: 30dBi 433mhz antenna

Polarization: Vertical

VSWR: 1.8

Input impedance: 50Ω

Antenna height: 185mm (150mm for spring)

Cable: 3m RG58U or customized

Connector: SMA male or customized

[login to view URL]

*Signal Amplifier:

LNA 50-4000MHz RF Low Noise Amplifier Signal Receiver Module Shield Board SPF5189


LNA: 50-4000mhz

NF: SPF5189Z

LNA0: 0.6 dB

Amplifier: FM

Color: green

Size: 23*28MM

[login to view URL]

* Cable that connects the esp32 to the amplifier:

Customized SMA male to Ipex patch cord RG178 UFL cable for communication antenna

[login to view URL]

* Firmware:

Lora Library by Sandeep Mistry with the following configuration.

FREQ 433E6








* Deliverables:

Software and hardware specifications for better communication including correct wiring and software parameters.

Is the cable correct?

is the amplifier best suit for our needs?

is the software parameters correct for those hardware?

is the chosen library able to use all the potential of the hardware?

Feel free to suggest other hardware configuration (Heltec module is mandatory) or library(Radio Head maybe)

We can discuss additional milestones to develop a prototype with a software, but for this job we just need a consulting on this problem.

Kemahiran: Elektronik, Mikropengawal, Kejuruteraan Elektrik, Tanpa Wayar, LoRa

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Tentang Majikan:
( 2 ulasan ) Manaus, Brazil

ID Projek: #27485346

Dianugerahkan kepada:


Throw away those antennas. The advertising is totally false. You need a good quality Yagi antenna for your application. Many other improvements are possible. Regards, Jim

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Hello, i can make a pathloss software link budget analysis , and make several recomendations for your project , because i.m a bachelor degree in electronics engineering , and have more than 10 years in telecom indus Lagi

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