Lectrosonics R400a User Manual download pdf (Page 13)

UHF Wireless Diversity Receiver

Rio Rancho, NM

mic preamp and some of the hiss from lavaliere mi-

crophones. The noise reduction beneﬁt is dramatic

in this position, yet the degree of transparency

maintained is exceptional.

FULL - Enough noise reduction is applied to

remove most of the hiss from nearly any signal

source of reasonable quality, assuming levels are

set properly at the transmitter.

Rotate the MENU control to select the noise reduction

mode. Exit this setup screen by pressing the PREV

MENU button.

Back

Rotate the MENU control to select BACK, then push the

MENU control to return to the TopMenu window.

LockSet

LockSet is used to lock the R400A settings. When

locked, the use of the MENU functions is limited to

“view only” and attempts to change selections will result

in a screen displaying the word “LOCKED! (To Unlock,

Use LockSet Menu)” The Scan and SmartTune™

functions are disabled when the unit is in the LOCKED

state.

To LOCK the R400A - Press the MENU control to enter

the TopMenu, then rotate the MENU control to select

LockSet. Press the MENU control to open the LockSet

window, rotate the MENU control to select LOCK, then

push either the MENU control or the PREV MENU but-

ton to exit to TopMenu.

To UNLOCK - Repeat the steps above and select NOT

LOCKED.

SmartTune

™

SmartTune™ automates the discovery of a clear

operating frequency. It does this by scanning all the

available operating frequencies within the system’s fre-

quency block range (in 100 kHz increments) and then

selecting the frequency with the least amount of RF

interference. When SmartTune

™

is complete, it returns

to the Main Window displaying the operating frequency

and transmitter switch settings for the clear channel

discovered during scanning.

Scan

Navigate to the SCAN option from the menu, then press

the MENU control to activate the scan function. The

receiver begins scanning the receiver’s frequency block.

The receiver will continue to scan, accumulating the

highest peaks with each subsequent scan, until stopped

by the user. Data gathered during the scanning pro-

cess is retained until Scan mode is exited.

To stop scanning (but not exit Scan mode), press

the MENU control once. The display switches to the

Coarse View window. In this mode, each vertical band

of the display represents four frequencies (400 kHz).

Rotate the MENU control to scroll the cursor across

the tuning range. As the cursor scrolls across the

frequency band, Frequency Select Switch settings for

the associated transmitter are shown in the upper right

corner of the screen.

Double pressing the MENU control switches the display

to Fine View which displays an expanded portion of the

spectrum around a ﬁxed, vertical cursor. In Fine View,

each vertical band represents one frequency (100 kHz).

As with the Coarse View, cursor movement across the

frequency band results in the displaying of the associ-

ated transmitter Frequency Select Switch settings in the

upper right corner of the screen.

In Fine View, the ﬁxed vertical center bar in the center

of the view serves as the cursor. Beneath the scan

area is a scroll bar to remind you that this is a partial

picture of the spectrum. Use the MENU control to scroll

through the entire spectrum. Rotate counterclockwise

to view lower frequencies, or clockwise to show higher

frequencies.

Scroll through the screen and ﬁnd a frequency where

no RF signals are present (or in the worst case, only

very weak RF signals). With the cursor on this fre-

quency, press the PREV MENU button to exit from scan

mode.

When exiting the scan mode, you are given the option

to select either the frequency the unit was on before

entering the scan mode, or the frequency just selected

in the scan mode. The display shows “Use new freq?”

to prompt you to make a frequency selection and also

shows the new frequency. Rotate the MENU control to

view the options. Select YES to set the receiver to the

frequency chosen in scan mode. Select NO to return

to the frequency that was set before entering the scan

mode. Select SCAN to resume scanning.

Note: Ensure the transmitter’s Frequency Select

Switch settings are the same settings as shown

on the display and your system will be ready for

operation.

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Lectrosonics R400a User Manual Page 13

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