Optical or Electromagnetic Interference

Optical or Electromagnetic

Interference

Direct sunlight, reflections, neon signs and other sources of infrared light or television sets, light dimming controls and other sources of electromagnetic fields can induce noise and interference into your IR repeater system. Symptoms can include: flashback LEDs continuously flickering or on without any remote control use, poor range, intermittent operation or no operation.

Solution: To eliminate EMI try the following methods

1.Move the receiver or the receiver cable away from the EMI source or move the source of the EMI away from the receiver or the cable.

2.Connect the receiver’s GND terminal to true earth ground (if this isn’t feasible use the main system unit’s GND terminal).

Optical Feedback Loop

If you have an IR Receiver in the same room as a emitter, and you have some low-level noise or interference, an optical feedback loop can occur which will interfere with proper operation. Symptoms can include: poor range, intermittent operation or no operation.

Solution: Replace IR-E1HO Emitters

You can eliminate optical feedback by replacing any IR-E1HO “flooding Emitters” with IR-E1 or

IR-E2 Emitters and covering all emitters with the supplied IR Blocking Covers.