Everything goes wireless these days. This is why we have a close look at the “black magic” of antennas, how they work, what is essential, and how to test them.
Based on this knowledge we will build a cheap antenna tester for LoRa antennas. A similar device can be built to test Wi-Fi antennas.
It uses an ESP32 TTGO board on one side and a Wemos D1 mini with a Hope RFM95 module on the other side.
Links:
Sketches: [ Ссылка ]
Stuart's Page: [ Ссылка ]
and his results: [ Ссылка ]
Watts to dBm converter: [ Ссылка ] / [ Ссылка ]
Radio link budget calculator: [ Ссылка ]
Coax cable loss calculator: [ Ссылка ]
Ground plane Calculator: [ Ссылка ]
LoRaWAN Balloon experiment: [ Ссылка ]
Moxon Antenna: [ Ссылка ]
Moxon antenna 3D: [ Ссылка ]
VSWR to dB table: [ Ссылка ]
50$ satelite: [ Ссылка ]
Supporting Material and Blog Page: [ Ссылка ]
Github: [ Ссылка ]
My Patreon Page: [ Ссылка ]
If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission (of your purchases the next 24 hours) to buy new stuff for the channel
For Banggood [ Ссылка ]
For AliExpress: [ Ссылка ]
For ebay.com: [ Ссылка ]
[ Ссылка ]
[ Ссылка ]
[ Ссылка ]
Please do not try to Email me or invite me on LinkedIn. These communication channels are reserved for my primary job
Equipment in my lab: [ Ссылка ]
