Справочник Пользователя для Lectrosonics Inc UM400
3
Frequency-Agile UHF Belt-Pack Transmitter
Rio Rancho, NM – USA
INTRODUCTION
Thank you for selecting the Lectrosonics UM400 frequency agile, belt-pack transmit-
ter. The UM400 combines over 80 years of engineering experience with the very latest
components, in a design that addresses the most demanding professional applica-
tions.
ter. The UM400 combines over 80 years of engineering experience with the very latest
components, in a design that addresses the most demanding professional applica-
tions.
The design of the UM400 was the direct result of numerous conversations with users,
staging and touring companies and dealers across the US. The specific concerns and
needs brought up in these conversations led directly to the development of the
operational features offered on the UM400. Two hundred fifty six frequencies are user
selectable in 100kHz steps to alleviate interference problems in traveling venues, and
the low frequency roll-off is user adjustable to adapt to varying acoustic environments
and preferences.
staging and touring companies and dealers across the US. The specific concerns and
needs brought up in these conversations led directly to the development of the
operational features offered on the UM400. Two hundred fifty six frequencies are user
selectable in 100kHz steps to alleviate interference problems in traveling venues, and
the low frequency roll-off is user adjustable to adapt to varying acoustic environments
and preferences.
The UM400 is a rugged, machined aluminum package with a removable, spring loaded
belt clip. The input section provides a correct input tap for virtually any microphone or
line level audio source. 3.3 Volts of bias voltage is available to power electret mics
with either positive or negative bias. Level indicating LEDs are provided on the control
panel to make level settings quick and accurate, without having to view the receiver.
The battery compartment accepts any 9 Volt alkaline battery and makes a positive
connection via self-adjusting contacts. The antenna is a detachable, locking 1/4
wavelength flexible bronze cable that connects to a 50 Ohm SMA port on the trans-
mitter.
belt clip. The input section provides a correct input tap for virtually any microphone or
line level audio source. 3.3 Volts of bias voltage is available to power electret mics
with either positive or negative bias. Level indicating LEDs are provided on the control
panel to make level settings quick and accurate, without having to view the receiver.
The battery compartment accepts any 9 Volt alkaline battery and makes a positive
connection via self-adjusting contacts. The antenna is a detachable, locking 1/4
wavelength flexible bronze cable that connects to a 50 Ohm SMA port on the trans-
mitter.
Only the UM400 transmitter is covered in this manual. Companion receivers are
covered in separate manuals. The UM400 will operate with any 400 Series
Lectrosonics receiver in the same frequency group.
covered in separate manuals. The UM400 will operate with any 400 Series
Lectrosonics receiver in the same frequency group.