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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.