stacksmashing5d ago
Sometimes, you simply need Bluetooth HIGH Energy📡
Show threadFelix DF3LX

@stacksmashing How much gain are you able/have calculated to get from this PCB-Yagi design?

It would also be interesting to know how much the two screws influence it.

Mar 17 at 4:43pmWeb
Show threadstacksmashing5d ago

@DF3LX I haven't measured it yet - but the directional effect is very very noticable. The antenna is just a random cheap one.

I was frustrated with all nRF-based BLE sniffers that I could find only having not-so-great chip-antennas.

Even with a 2.4GHz stub-antenna this one performs sooo much better