Lectrosonics MM400 - Manual - Manual (Page 3)

Frequency Agile UHF Miniature Belt-Pack Transmitter
INTRODUCTION
Thank you for selecting the Lectrosonics MM400 frequency agile UHF miniature
transmitter. The MM400 combines over 80 years of engineering experience with the
very latest components, in a design that addresses the most demanding profes­
sional applications.
The design of the MM400 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 develop­
ment of the operational features offered on the MM400. Two hundred fifty six fre­
quencies are user selectable in 100kHz steps to alleviate interference problems in
traveling venues.
The MM400 is a rugged, machined stainless steel package with a removable, spring
loaded belt clip. 3.3 Volts of bias voltage is available to power electret mics. 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 AA
alkaline or lithium batteries. The antenna is a detachable, locking ¼ wavelength
flexible bronze cable that connects to a 50 Ohm SMA port on the transmitter.
Only the MM400 transmitter is covered in this manual. Companion receivers are
covered in separate manuals. The transmitter will operate with any 400 Series
Lectrosonics receiver in the same frequency group.
Rio Rancho, NM – USA 3