BEEP base V3: hive measurement system with nRF52840 / HX711 / LoRa / I2C / Audio ADC

[arjanvanb (Arjan)]

@pe1mew

The best way is to increase the antenna height at the bee hives by putting the node on a pole of 2 meters and extend the wiring to the scale.

And this may also allow for positioning the existing internal antenna vertically? That could help:

@TonySmith

You will find the loss between the transmit and receive antenna will have the function of the cosine of the angle between the two. So if one is vertical and the other is horizontal the angle is 90 degrees and the receive signal should be zero. Now, you will find there is some receive signal but this is coming from reflections and since this another topic to learn about I won’t go any further.

Simple rule: Since LoraWan gateways have a vertical antenna then its best if the node has the same.