Radio Frequency power detector "sniffer"

A wide range RF detector 50-3000Mhz with battery charger, ATtiny micro controller and SMD.

Oct 7, 2022

9623 views

3 respects

Components and supplies

1

Arduino Nano R3

1

Microchip ATtiny 1614 Processor

Project description

Code

RF-sniffer code

arduino

Downloadable files

PCB rf-sniffer top

PCB rf-sniffer top

PCB rf-sniffer bottom

PCB rf-sniffer bottom

PCB rf-sniffer topsilk

PCB rf-sniffer topsilk

Comments

Only logged in users can leave comments

epicdave

6 months ago

Ur project prompted me to join and consider taking the plunge into arduino world.

marcozonca

a year ago

Please check updates of this and other my projects on https://www.hackster.io/marcozonca and keep in contact with me too with your comments and questions there. Thank you.

plusmartin

a year ago

Hi Marco, I love your project and want to build it. My goal is to detect cellular tower signal at certain radio bases so that if a base or an antenna fails I can know about it remotely. A few question: Is LT5534 a chip that reads the RF signal from an antenna connected to the RF input? I thought that this pin would go to the RF output of a radio transmitter to measure the output power. I am considering g using the LTC5535 chip, it is similar to yours with sone variations in frequency range and dBm sensitivity. Maybe this is a naive question: Are you supposed to connect an antenna to the RF input instead of the RF amplifier output? If yes, how does the output power change with the distance to the radio source? How do you discern between different sources? Thank you

marcozonca

a year ago

Hello Martin, the RF input pin of the LT5534 chip is made to be connected to a small signal as per one from an antenna: its datasheet says clearly to not send to this pin too much power otherwise the chip will burn (out of order). It happended to me one time. My suggestion is to leave the project as is, to add a circuit to connect it to IOT, to add some code to send messages to IOT in addition to light up the LED, with base indentifier, when the base fails radio transmission. You may check IOT from a smartphone at home and check your bases in this way. In any case pay attention to not place the circuit+antenna too close to the base, or, if it is the case, you need to attenuate RF, as already mentioned.