I'm doing a project with a Bluetooth device for the first time, specifically with a JY-MCU Bluetooth module:
As you can see, the antenna is on the green PCB, which is in turn soldered to a breakout board.
Does it matter what orientation the antenna is in? For example, I could set it flat on its top or back as shown in the above image, or I could also plug it in vertically.
Will changing the orientation change the receiver and transmitter distance?