Specifications and Features
QUAD Box Assembly
The mechanical assembly will accept either the UDM4 UHF
distribution module or the UCDM4-SMT VHF distribution
module. These two units are the same except for the fre-
quency range of operation.
All rear panel connectors are recessed for protection, yet
fully accessible. Receivers and the distribution module are
easily removed for use separately or for servicing.
Built-in gel-cell batteries provide up to 9 hours of operation
per overnight charge. The batteries are recharged through a
4-pin XLR jack in the rear panel of the distribution module
with the supplied charger.
A zippered naugahyde dust cover surrounds the rugged
aluminum mechanical assembly. The front and rear zippered
covers include pockets with protective stiffeners.
Distribution Modules
The UDM4 is a UHF design for use with UCR190 receivers. The
UCDM4-SMT is a VHF design for use with CR187 VHF receivers.
Both units offer the same features and benefits and differ only the
in frequency band of operation. The module is easily removed for
use separately in portable bags or with sound carts.
The RF amplifier offers a high overload threshold to minimize
intermodulation. Isolation between receivers is provided
by a “strip line” splitter. Power is distributed to the
receivers via auto-resetting thermal fuses on each
power lead. The fuses operate independently so that
a fault on one lead will not affect the others. External DC
power for the receivers can be supplied via a 4-pin XLR jack on
the rear panel, or from the internal gel-cell batteries.
Distribution module:
Frequencies: • UDM4: 20MHz passbands
from 512 to 608 MHz
• UCDM4-SMT: 4 MHz pass-
bands from 150 to 216 MHz
RF bandwidth: 20 MHz (UHF); 4 MHz (VHF)
RF gain: 0.5 to 1.5 dB
3rd order intercept: +19 dBm
RF filtering: 2-pole ceramic resonator
Mechanical assembly:
The distribution modules can also be powered with
Power consumption: 265 mA
an internal 9 Volt battery as a backup power source
Internal batteries: 6.5 Ah rechargeble
or for use outside of the QUAD Box assembly
Weight: 16 lbs. 5 ozs.
Approx. dimensions: 9 x 8 x 7
QBOXLIT-0799
LECTROSONICS
®
581 Laser Rd NE - Rio Rancho, NM - 87124 USA
(800)821-1121 (505)892-4501 Fax(505)892-6243
www.lectrosonics.com sales@lectrosonics.com
(16 pages)
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