My Videos

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 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 24

Meshtastic 433 MHz Bidirectional RF Amplifier 2.3 Watts at 5v Overview by Technology Master

This RF amplifier works on TX as well as on RX. It has a PA for transmitter side and LNA for receive side. It provides a decent gain on...

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 29

Meshtastic Sub-GHz Tri-Band Devices 915 MHz, 868 MHz and 433 MHz | Technology Master

You can Change your Meshtastic device frequency. You can switch between 3 most popular bands i.e 915 MHz, 868 MHz and 433 MHz as well as...

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...

Mar 26

Nano VNA V2 or Any, How To Calibrate Port S21 with Save & Recall | Technology Master

Nano VNA V2 or Any, How To Calibrate Port S21 with Save & Recall. Technology Master. #ham #lora #hamradio #diy #technologymaster #nanovna...