Lectronics LongRanger4 Operating Instructions Manual - page 3
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Portable Wireless Sound System
Rio Rancho, NM – USA
GENERAL TECHNICAL DESCRIPTION
The standard Long Ranger Portable Wireless Sound System consists of a combination wireless receiver/amplifier/
speaker with a rechargeable battery pack, a belt-pack or plug-on transmitter and a microphone. Optional micro-
phones, extension speakers and add-on equipment for a second wireless channel are available.
The Long Ranger features a VHF wireless microphone system with a transmitter-to-receiver operating range of up to
750 feet. The receiver is designed for high selectivity to prevent interference from other transmitted radio signals.
The system is designed and constructed for rigorous portable use with the antenna integrated into the horn speaker
to eliminate damage.
The Long Ranger will operate from 8 to 12 hours from the “on-board” rechargeable battery pack before recharging is
necessary. The actual operating time is dependent upon the type of usage....intermittent or continuous. The unit can
also be operated from an external 12 Volt DC source or an AC wall outlet.
The amplifier produces 33 Watts, RMS, into the 8 Ohm horn speaker. The sound output will cover an area the size of
a football field under average outdoor conditions. Several Long Rangers can be easily connected together to provide
even greater area coverage.
RECHARGEABLE BATTERIES AND EXTERNAL POWER SOURCES
The built-in battery pack in the Long Ranger is charged by plugging the DCR15/2AU charger into the jack labeled
DCR15/2AU CHARGER on the control panel. Connect the charger into a standard 110 or 220 Volt AC outlet. (The
DCR15/2AU charger can be operated from 110/220V, 50/60Hz.) The green lamp beneath the jack will light as long
as the batteries are charging. When the batteries are almost completely charged the green charging light will go out.
You may leave the charger plugged in after the green light has gone out with no danger of damage to the system. In
fact, we recommend charging the system whenever it is not in use, then the system will always be “ready to go”.
The DCR15/2AU charger can charge the batteries in as little as 2 1/2 hours. If the unit is completely run down, it may
require as much as 6 hours to fully charge the batteries. Leave the charger plugged in at least until the green lamp
below the CHARGER jack goes out.
(NOTE: In the case of severely discharged batteries (this can happen if the Long Ranger has been
left on constantly for several months), it may be necessary to charge the unit for a much longer time.
Up to 10 days charge time is not uncommon in these circumstances.)
The DCR15/2A charger is capable of charging the batteries and running the Long Ranger in normal operation at the
same time. The time required to fully recharge that batteries will be longer if the unit is being used while charging the
battery pack.
!! CAUTION !!
USE ONLY THE SUPPLIED DCR15/2A CHARGER
DO NOT USE THE OLDER CH40 CHARGER IN THE NEW LONG RANGER 4. THE CH40
WILL NOT CHARGE THE BATTERIES IN THE LONG RANGER 4 AND WILL BE DAMAGED IF USED.
The Long Ranger can be operated from an external 12 Volt DC source such as an automobile battery or, most
commonly, from the cigarette lighter receptacle in your vehicle. To use an external power source it must be con-
nected into the 12V DC POWER INPUT jack on the Long Ranger front panel. CAUTION--Make sure you comply
with the polarity markings on the jack. The correct plug for making the connection is a Radio Shack 274-1567 size K
coaxial DC power plug. Radio Shack also stocks cigarette lighter plugs (with built-in fuse) and cords to construct a
suitable assembly.