My Videos

Sep 26

Meshtastic RX LNA Gain Testing of Bidirectional RF Amplifier AB89 for 868 & 915 by Technology Master

Bidirection RF Amplifier are ideal solutions for low power (below 5 watts) applications like Meshtastic. They provide power amplification...

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...

Sep 11

RF Amplifier LNA 5MHz to 6GHz with 20Db Gain, New Version of 5189z, Overview by Technology Master

I offered overview of RF Amplifier LNA 5MHz to 6GHz with 20Db Gain. I hope it will help my viewers decide if they should go ahead and buy...

Sep 9

Mini Loop Antenna 9 9KHz to 181MHz HF & VHF bands, Overview by Technology Master

Mini Loop Antenna is small size and can be used with SDR and other Radio receivers. It is used for Radio Direction Finding RDF and Noise...

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 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...

May 11

Meshtastic Antenna Testing Without NanoVNA for 868 MHz by Technology Master

Meshtastic Antenna Testing with RF Attenuators Explained for Everyone by Technology Master. This procedure works well on any frequency...

May 8

RF Attenuator 2 Watts 20 Db Explained for Everyone by Technology Master

It is a two watts RF Attenuator providing 20 Db power drop. I Explained it for Everyone and not focused at engineers only. I am planning...

May 6

Advantages of Meshtastic 2.4 GHz International Worldwide Band by Technology Master

LILYGO T3-S3 SX1280. Advantages of Meshtastic 2 4 GHz International Worldwide Band by Technology Master. This band gives the best...

Apr 25

Meshtastic SNR Signal to Noise Ratio Explained for Everyone by Technology Master

Meshtastic SNR Signal to Noise Ratio Explained for Non-Engineers by Technology Master. The statement that Meshtastic Bidirectional RF...

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 23

Meshtastic US-915 MHz and EU-868 MHz 5v Bidirectional RF Amplifier AB-89 Overview by Technology Master

Bidirectional Amplifier uses two amplifiers. One for Transmitter(TX) and other for the receiver(RX) side. It has automatic switching...

Apr 22

Meshtastic 2.4GHz Worldwide Band 4 Watt Bidirectional RF Amplifier Overview by Technology Master

Bidirectional RF Amplifier is an amplifier that works in both directions. It has an power amplifier to increase transmit power and it has...

Apr 17

Meshtastic LILYGO T3-S3 SX1280+PA 2.4GHz International WorldWide Band, Unboxing by Technology Master

Meshtastic LILYGO T3-S3 SX1280+PA 2.4GHz International WorldWide Band, Unboxing by Technology Master. This model has a +12dB RF Power...