Clear-Com RCV-2, Инструкция по эксплуатации, Страница: 7 / 24

W i r e l e s s I F B / C u e S y s t e m
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OPERATION
DESCRIPTION
UPX-10 WIRELESS TRANSMITTER
The UPX-10 wireless transmitter permits IFB/talent cueing, PL/intercom
listen-only monitoring and other audio monitoring applications for studio, field,
and theatre/live performance environments. The system consists of the UPX-10
base station transmitter and one or more RCV-2 portable beltpack receivers.
The UPX-10 base station is a single-channel rack-mounted VHF/FM
transmitter that sends a monaural audio signal to a compatible receiver such as
the Clear-Com RCV-2 portable VHF receiver. The receiver must exactly match
the transmitter frequency; refer to the identification labels on each piece of
equipment.
The UPX-10 accepts either a Clear-Com intercom line or IFB audio signal from
a Clear-Com IFB controller. It can optionally be set up to accept a mic- or
line-level audio input through the same XLR connector mounted on the rear
panel. The S0-239 RF output connector, sometimes called a UHF type, is also
mounted on the rear panel. The transmitter is powered by means of an external,
wall-mounted power supply provided with the UPX-10. It does not require or
draw power from the Clear-Com system.
The audio signal can be adjusted in various ways prior to transmission in order to
improve intelligibility in demanding acoustic environments. Two
screwdriver-accessed controls for adjusting the low and high frequencies are
located on the rear panel. In addition, the audio dynamic range can be limited by
either a 2:1 logarithmic compressor, or by a wide-range Automatic Level Control
(ALC) system, selected by means of a slide switch located on the rear panel. This
switch also has a third position for no dynamic range modification. Noise
reduction is achieved with a proprietary two-ended compander system that is
always active. The compander is compatible with Clear-Com’s RCV-2 portable
VHF receiver.
Note :The UPX-10 is shipped from the Clear-Com factory with internal jumpers set
to be compatible with Clear-Com wired intercom and IFB systems.
The UPX-10 can also accommodate a wide range of audio input levels. A
two-position slide switch attenuator on the rear panel selects between mic (-40 to
-10 dBu) and line (-10 to +20 dBu) levels. Fine audio level adjustment is made
by means of a 30-dB range-variable attenuator conveniently located on the front
panel. Also located on the front panel is an 8-segment LED VU meter to assist in
adjusting input levels.
The RF transmitter portion of the UPX-10 is a replaceable printed circuit board
assembly (PCB) that plugs into the main UPX-10 PCB. This crystal-controlled
transmitter is factory tuned to a specific frequency, and can easily be replaced
• The system consists of the
UPX-10 base station
transmitter and one or
more RCV-2 wireless
beltpack receivers.
• The UPX-10 accepts
either a Clear-Com
intercom line or IFB audio
signal from a Clear-Com
IFB controller.
• The audio signal can be
adjusted prior to
transmission.
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