UM400aFrequency Synthesized 100 mW UHF Belt-Pack TransmitterINSTRUCTION MANUALRio Rancho, NM, USAwww.lectrosonics.comFill in for your records: Serial
UM400aLECTROSONICS, INC.10The wiring diagrams included in this section represent the basic wiring necessary for the most common types of microphones a
Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM11NOTE: This termination is intended for UHF transmitters only. VHF transmitters with 5-p
UM400aLECTROSONICS, INC.12Microphone RF BypassingWhen used on a wireless transmitter, the microphone element is in the proximity of the RF coming from
Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM132 VOLT POSITIVE BIAS 2-WIRE ELECTRETSimplified wiring for microphones such as Countryma
UM400aLECTROSONICS, INC.14ItemReplacement wire belt clipReplacement whip antennaReplacement Parts and AccessoriesUHF Transmitter Antenna Specifications
Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM15Before going through the following chart, be sure that you have a good battery in the t
UM400aLECTROSONICS, INC.16Operating frequencies: Block 470: 470.100 - 495.600 Block 19: 486.400 - 511.900 Block 20: 512.000 - 537.500
Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM17Service and RepairIf your system malfunctions, you should attempt to correct or isolate
UM400aLECTROSONICS, INC.18
Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM19
UM400aLECTROSONICS, INC.2
UM400aLECTROSONICS, INC.20UM400aman.indd26 June 2013581 Laser Road NE • Rio Rancho, NM 87124 USA • www.lectrosonics.com(505) 892-4501 • (800)
Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM3© Copyright 2008 Lectrosonics. IncTable of ContentsGeneral Technical Description ...
UM400aLECTROSONICS, INC.4IntroductionThe UM400a transmitter combines 100 mW of RF output with +/-75 kHz wide deviation for extended operating range an
Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM5Low Frequency Roll-OffThe low frequency roll-off at the 3 dB down point is vari-able fro
UM400aLECTROSONICS, INC.6Input JackThe input on the UM400a accommodates virtually every lavaliere, hand-held or shotgun microphone available. Differen
Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM7Audio Level ControlThe front panel AUDIO LEVEL Control is used to adjust the input level
UM400aLECTROSONICS, INC.8To open the battery compartment, press outward on the cover door in the direction of the arrow as shown in the illustration.
Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM9Attaching a Microphone and Adjusting Gain1) Ensure the battery is in good condition.2)
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