Lectrosonics QUADBox - Manual

TECHNICAL DATA
UHF/VHF QuadPak Multicoupler
Feature Highlights
• Houses up to four UHF or VHF receivers.
• Single antenna and power supply
• Modular configuration
• Distribution module includes RF filters,
amplifier, “strip-line” splitter and power
distribution.
• High RF overload threshold minimizes IM.
• Built-in rechargeable gel-cell batteries.
• External DC and 9V dry cell batteries
provide backup power sources.
• Power distribution via independent auto-
reset thermal fuses for each receiver.
Convenience and performance...
The QUADBox multicoupler provides a convenient,
highly portable mechanical assembly with integral RF
and power distribution for up to four receivers. Two
different multicouplers are available to configure the
system for either the UCR190 UHF receivers or the
CR187 VHF receivers.
The signal from a single antenna is filtered, amplified
and distributed to the four receivers through a high
performance RF multicoupler. The RF distribution mod­
ule is a high performance design that applies filtering
before gain is applied to the signal. The gain applied to
the signal is just enough to compensate for the required
loss in the splitter to preserve the excellent RF perfor­
mance of the receivers. A 2-pole ceramic resonator is
used ahead of the RF amplifier to reject energy above
and below the passband. The RF amplifier is a high
current type with a high overload threshold to minimize
intermodulation.
RF strip line splitter...
A 1/4 wave transmission line RF splitter following the RF
amplifier is integrated into the multi-layer circuit board to
provide isolation between the receivers and low loss RF
signal distribution. One of the advantages of this type of
splitter is that unused RF outputs do not necessarily
have to be terminated, which is important due to the
modular configuration of the system.
Modular configuration...
Each of the receivers and the distribution module can be
removed for use separately or for service. This makes it
easy to use the receivers independently on a camera, in
a cart or in a bag, as the need arises.
Powering options...
Built in rechargeable gel-cell batteries provide over 15
hours of operation on a single overnight charge. The
assembly can also be powered from external 12V DC
via the distribution module, or with 9 Volt batteries in the
receivers and the disttrbution module.
Rugged mechanical package...
The housing is constructed of machined aluminum in a
rugged design that will withstand heavy use in the field.
The receivers and distribution module are nested into
pockets milled into the aluminum front panel.
LECTROSONICS, INC.