CHIAYO IrDA-9000 - Manual (Page 4)

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2. A lower Squelch level means that the audio path will be opened at a weaker RF signal. It is
equivalent to increasing the sensitivity of the receiver, thus longer receiving distance. When
no interference noise is detected, just adjust the Squelch to the minimum.
Receiver installation
For best operation, the receiver should be at least 1m above
the ground and 1m away from a wall or metal surface to
minimize reflections. The transmitter should also be at least
1m away from a wall or metal surface to minimize reflections.
The transmitter should also be at least 1m away from the
receiver. Keep antennas away from noise source such as
motors, automobiles, neon light as well as large metal objects.
Audio output connection
There are two audio outputs on the back of the receiver, Mic-level balanced and Line-level
unbalanced. Use shielded audio cable for the connection between the receiver and the
amplifier/mixer. If the amplifier/mixer has a 1/4"(6.3mm) phone jack, connect a cable from the
1/4"(6.3mm) unbalanced audio output (LINE OUT) from the receiver to the amplifier/mixer. If
the amplifier/mixer has an XLR input, connect a cable from the balanced XLR audio output
(MIC OUT) from the receiver to the amplifier/mixer input.
Rack mounting
The receiver can be rack-mounted by either as single unit or two units together. If only one
receiver is to be mounted, an optional kit is available and it's installed as shown in Fig 1. If two
receivers are to be mounted, they can be assembled by another kit and installed as shown in
Fig 2.
(Fig 1)
(Fig 2)