Sometimes there can be interference or a break in the transmission.
● A clear line of sight between the transmitter and receiver(s) will give best results.
● Hiding the transmitter behind books, tins etc will decrease coverage dramatically irrespective of frequency of transmission.
● Be aware when using the system outdoors, that obstructions and weather can get in the way of the signal from transmitter to receiver.
● Within a room, blind spots will occur if a metal structure or other obstructions are between the transmitter and receiver.