Lectrosonics UM100 User Manual download pdf (Page 6)

CONTROLS AND FUNCTIONS

ANTENNA

OFF ON

–20

LECTROSONICS

LEVEL

AUDIO

UM 100

FREQUENCY

1.6MHz

100kHz

150

75 Hz

LF ROLL OFF

Frequency

Adjust

LF Roll-Off

Adjust

INPUT JACK

The input on the UM100 accommodates virtually every lavalier, hand-held or shotgun microphone available. Line level

signals can also be accommodated. Use a Switchcraft TA5F connector on the cord. See the separate sheet titled

“Transmitter 5-Pin Input Jack Wiring” regarding the correct connections for various microphones, and other

sources.

ON/OFF SWITCH

Turns the battery power on and off.

“ON” LAMP

Glows brightly when the battery is good and the ON/OFF switch is ON. A weak or dim lamp means that the battery is

weak. When the light goes out there is about 15 to 30 minutes of operation left. If the lamp fails to light, the battery

should be replaced.

The “ON” lamp is connected to a precision battery test circuit that continuously monitors battery voltage. The LED is

at full brightness with a new 9 Volt alkaline battery. As the battery voltage drops during use, the LED brightness will

also decrease. After about 4.5 hours of operation the battery voltage will be about 6.5 Volts and the LED will be

completely out.

FREQUENCY ADJUST

These two rotary switches adjust the center frequency of the carrier. The 1.6M is

a coarse adjustment and the 100K is the fine adjustment. Each transmitter is

factory aligned at the center of its operating range. The default position of the

frequency select switches is in the center of the transmitter’s range.

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Lectrosonics UM100 User Manual Page 6