Battery Replacement; Specifications And Features - Lectrosonics H187 Instruction Manual

Battery Replacement

The H187 transmitter is powered by a standard alkaline
9 Volt battery. It is important that you use ONLY an
ALKALINE battery for longest life. Standard zinc-
carbon batteries marked "heavy duty" or "long-lasting"
are not adequate. They will provide only about 4 hours
of operation. Similarly, nicad rechargeable batteries
only give 4 hours of operation, and will also run down
quite abruptly. Alkaline batteries provide about 15
hours of operation.
To open the battery compartment, press outward on the
cover door in the direction of the arrow as shown in the
RELEASE
DOOR

Specifications and Features

Operating frequencies:
RF Power output:
Deviation:
Spurious radiation:
Equivalent input noise:
Input level:
Input impedance:
Input compressor:
Gain control range:
Modulation indicators:
Controls:
Connector:
Battery:
Weight:
Dimensions:
Emission Designator:
Specifications subject to change without notice.
Rio Rancho, NM
SWING OPEN
150 to 216 MHz
50mW
±15kHz
55dB below carrier
-126dBV
Nominal 2mV to 300mV (before compression)
22k Ohms (compatible with all Lo-Z microphones)
Soft compressor, 35 dB range allows
3 Volt max. input
43dB; semi-log rotary control
Dual LEDs indicate modulation level and onset
of limiting
3 position "OFF-MUTE-ON" for noiseless operation;
rotary knob adjusts audio gain
3-pin XLR type with auto-locking collar
Any 9 Volt alkaline battery
7 ozs. including battery
1.5 x 1.5 x 4.2 inches
54KOF3E
drawing. Only slight, sliding pressure is needed to open
and close the battery door.
Swing the door open and take note of the polarity
marked inside showing the location of the positive (+)
and negative (-) terminals. Insert the battery and close
the cover by pressing in and across, reversing the
opening procedure outlined above. Note that the
battery door will NOT close if the battery is inserted
incorrectly, since the terminals will hit a protective
polarity barrier.
OBSERVE
POLARITY
Plug-On Transmitter
7