3
Portable Wireless Sound System
Rio Rancho, NM – USA
GENERAL TECHNICAL DESCRIPTION
The standard LONG RANGER III Portable Wireless Sound System consists of a combination wireless receiver/
amplifier/speaker with a rechargeable battery pack, an M175 or M175LS belt-pack transmitter and a headset micro-
phone. Optional microphones, extension speakers and add-on equipment for a second wireless channel are avail-
able. These items will be discussed elsewhere in this manual.
The LONG RANGER III 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 III will operate from 8 to 12 hours from the “on-board” rechargeable battery pack before recharg-
ing 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 opera-
tion 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 IIIs can be easily connected together to
provide even greater area coverage.
RECHARGEABLE BATTERIES AND EXTERNAL POWER SOURCES
The battery pack in the LONG RANGER III is charged by plugging the CH-40 charger into the jack labeled
CHARGER on the control panel of the LONG RANGER III. 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 III consumes more power than the CH-40 charger can supply, the batteries will recharge
faster if you turn the LONG RANGER III 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 below the CH-40 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 LONG RANGER III 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 III front panel. CAUTION--Make sure you comply with
the polarity markings on the jack. The correct plug for making the connections is a Radio Shack 274-1567A 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 III, the on-board battery pack is automatically disconnected.