Interference - Telex ENG-1 Operating Instructions Manual

Interference: As with any radio device, interference can occur at any
time. There are basically two types of interference, mild and severe.
Before using the ProStar System, Telex recommends that you monitor
the channel for interference. To do so, install your ENG-1 receiver
only, in the desired location. DO NOT turn on any other receiver or
transmitter at this time.
The ProStar system is shipped pre-adjusted for the average installation
and will normally not require any further adjustment.
Mild interference will cause the ENG-1 receiver's "tx on" green LED
to be on or flicker, along with audible noise. This type of interference
can usually be "squelched out" by advancing the squelch control
located inside the battery compartment, clockwise until the LED goes
off. If the squelch control cannot cause the LED to go off, check to see
if a transmitter has been accidentally left on.
Advancing the squelch control too far can result in short
operating range.
Severe interference will cause the "tx on" green LED to stay on all the
time. Audible interference can be present or if the interfering signal is
simply a "carrier", no audio will be heard. If the squelch control is
advanced full on and the "tx on" light is still lit, the interference is
severe and an alternate frequency/channel should be used.
If the interference is mild, a reduction in the level of interference can
often be had by simply moving the receiver to a different location.
Monitor the channel periodically for interference.
NOTE: If, after adjusting the ENG-1 or Telex transmitter and the
audio is weak, or distorted, this would indicate a level mismatch
beween the ENG-1 and the amplifier/mixer. This problem must be
corrected at the amplifier/mixer.
CAUTION:
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