My Videos

Sep 19

Meshtastic RF Power Testing of US-915MHz & EU-868MHz Bidirectional RF Amplifier by Technology Master

I will create four scenarios for testing transmitter power output of Meshtastic Bidirectional power amplifier and Meshtastic Heltec V3...

May 28

L400 LMR400 50 Ohm Low Loss Coax for Meshtastic, Measuring Actual Cable Loss by Technology Master

How much signal I will lose in the coaxial cable between transceiver and antenna? Is the most important question. We will be measuring...

May 27

Meshtastic BMP280 Digital Barometric Pressure Altitude Sensor Overview by Technology Master

It enables MESHTASTIC to measure altitude and Barometric Pressure. It is BMP280 Digital Barometric Pressure Altitude Sensor. I am...

May 27

Meshtastic Max98357 I2S 3W Class D Audio Amplifier Overview by Technology Master

Just by attaching 4 ohm speaker with this module we can listen to the audio transmissions on Meshtastic LILYGO T3-S3 2.4GHz device. For...

May 22

ADSB 1090MHz Bandpass Filter with +20db LNA for SDR Receiver Overview by Technology Master

It can be used as an active device as well as an passive antenna. For the details, please watch my video. ADSB 1090MHz Bandpass Filter...

Apr 16

RF Attenuator Explained for Everyone by Technology Master

What is Radio Frequency Attenuator? RF Attenuator Explained for Non-Engineers. #meshtastic #ham #lora #diy #offgrid #sdr #technologymaste...

Apr 16

What is dB or Decibel, Power and Voltage Ratios Explained for Everyone | Technology Master

What is dB or Decibel, Power and Voltage Ratios for Non-Engineers. Technology Master. #meshtastic #lora #ham #offgrid #technologymaster...

Apr 7

Meshtastic 868 MHz SAW Filter, Bandpass Filter Review by Technology Master

Meshtastic 868 MHz SAW Filter Review. 868 MHz Bandpass Filter Review. Performance analysis of SAW Filter for 868 MHz Meshtastic LoRa band...

Apr 2

Meshtastic RF Output Testing After Region Switching for Heltec LoRa ESP32 V3 | Technology Master

Is it really 22 dbm? Does Meshtastic Heltec LoRa ESP32 V3 Actually Transmits 22dbm? Meshtastic RF Output Testing After Region Switching...

Mar 31

How To Switch Meshtastic 915 MHz, 868 MHz and 433 MHz Bands on SX1262 Devices | Technology Master

Step by Step guide for changing regions and frequencies e.g EU_868, EU_433, US, LORA_24 etc. It also explains How To Switch Meshtastic...

Mar 26

Nano VNA V2 or Any, How To Calibrate Port S11 with Save & Recall | Technology Master

Nano VNA V2 or Any, How To Calibrate Port S11 with Save & Recall. Technology Master. #meshtastic #ham #lora #sdr #hamradio #offgrid #diy...