General technical description, Rechargeable batteries and external power sources – Lectrosonics Long Ranger II User Manual

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GENERAL TECHNICAL DESCRIPTION

The standard LONG RANGER II Portable Wireless Sound System consists of a combination wireless
receiver/amplifier/speaker with a rechargeable battery pack, an M170 belt-pack transmitter and a
microphone. Optional microphones, extension speakers and add-on equipment for a second wireless
channel are available. These items will be discussed elsewhere in this manual.

The LONG RANGER II 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 II 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.
An accessory power cord is available to allow operation from a vehicle cigarette lighter receptacle.

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 RANGER IIs can be
easily connected together to provide even greater area coverage.

RECHARGEABLE BATTERIES AND EXTERNAL POWER SOURCES

The battery pack in the LONG RANGER II is charged by plugging the CH-40 charger into the jack
labeled CH-40 on the control panel of the LONG RANGER II. Connect the charger into a standard 110
Volt AC outlet. 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".

Since the LONG RANGER II consumes more power than the CH-40 charger can supply, the batteries
will recharge faster if you turn the LONG RANGER II power off while charging. The batteries normally
require 2 to 6 hours to recharge. If the unit is completely run down, it may require as much as 24
hours to fully charge the batteries. Leave the charger plugged in at least until the green lamp just
below the CH-40 jack goes out.

The LONG RANGER II 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 connected into the 12V DC POWER INPUT jack on the LONG RANGER II
front panel. CAUTION--Make sure you comply with the polarity markings on the jack. The correct plug
for making the connections is a Switchcraft S-760 which can be obtained through electronic parts
suppliers. Lectrosonics cord number 21329 is available through your dealer for connecting your unit to
a vehicle cigarette lighter receptacle. When an external power source is connected to the LONG
RANGER II, the on-board battery pack is automatically disconnected.

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