We tested three antennas:
- Antenna 1 (ANT-868-CW-RCL-SMA) (Mouser) (≈ 9 €)
- Antenna 2 (ANT-868-CW-RH-SMA) (Mouser) (≈ 10 €)
- Antenna 3 LILYGO TTGO ESP32 (LoRa32 V2.1 1.6.1 Version LoRa ESP-32 OLED 0.96 Inch SD Card Bluetooth WiFi Module (868 MHz) ) (Amazon) (Antenna included in the package)
Two pieces of each antenna were measured to minimize or detect variations.
Reference Measurements (Open, Short and Load) below.
