Lectrosonics UCR411 User Manual download pdf (Page 10)

FREQUENCY SCAN MODE

To use the integrated scanning function, press both UP/DOWN buttons and the MENU button at the same time. The

display will switch to the SCAN WINDOW and start scanning immediately. Data gathered during a scan is stored until

it is purposely erased or the power is turned off. Previous data will remain and subsequent scans can be made to

search for additional signals or to accumulate higher peaks.

USE OLD

USE NEW

Freq

Window

Scan

View

Fine View

Press All 3 Buttons

To Exit Scan

Mode,

Press All 3

Buttons From Any

Window.

Press Menu

SCAN & VIEW WINDOW ELEMENTS

Cursor - shows relative Switch Settings - shows the

position of the scanner

transmitter switch settings -

within the 25Mhz band of

will change rapidly while

the receiver.

the unit is scanning.

Scan level

indications -

showing

relative level

of RF activity

Remaining unscanned

across the 25MHz

part of band.

bandwidth of the receiver.

To stop scanning, press the MENU button once. The

scanning will stop immediately, and the display will switch

to the VIEW window. In this window, each vertical band

of the display represents 8 frequencies (800kHz). Press-

ing the UP or DOWN buttons will scroll the cursor

coarsely across the tuning range. The transmitter switch

settings matching the frequency indicated by the cursor

are shown in the upper right corner of the screen.

Spectrum data is collected only when the receiver is

scanning. Successive scanning with repeated passes

through the tuning range will accumulate the highest

peaks encountered to aid in finding clear frequencies. To

clear the scan memory without leaving scan mode, turn

the power switch off and back on quickly.

Pressing the MENU button once will shift the display to

the FINE VIEW window which will show an expanded

portion of the spectrum around the cursor.

In the FINE VIEW window, each vertical band represents

one frequency the UCR411 is capable of tuning. The

upper right corner shows the transmitter switch settings

for the frequency indicated by the cursor. In this screen,

a vertical center bar is the cursor. Underneath the switch

settings are two arrows to remind you that this is a partial

picture of the spectrum and that you can scroll left or right

to view the entire spectrum of the receiver by pressing

the UP and DOWN buttons.

FINE VIEW WINDOW ELEMENTS

Transmitter

Cursor (center bar) Switch Settings

RF Level indicators

SCROLL reminders

Pressing the UP button will make the display scroll left,

showing higher frequencies. Pressing the DOWN button

will make the display scroll right, showing lower frequen-

cies. The cursor remains in place while the display

scrolls left or right

In addition to assessing the congestion within the RF

tuning range of the receiver, the scanning mode is also

used to find a clear operating frequency. Scroll through

the screen and find a frequency where no RF signals are

present (or in the worst case, only very weak RF sig-

nals). With the cursor on this frequency, press the UP,

DOWN and MENU buttons at the same time to leave the

scan mode.

When leaving the scan mode, you are given the option of

using the frequency the unit was on before entering the

scan mode, or using the frequency just selected in the

scan mode. The display shows USE OLD and USE

NEW to prompt you to make a frequency selection. To

accept the new frequency just selected in the scan

mode, press the DOWN button for USE NEW. To return

to the frequency you were using before entering the scan

mode, press the UP button for USE OLD. (The MENU

button defaults to USE OLD).

Once you leave the scan mode, the Frequency Window

will be displayed. Set your transmitter switches to the

same settings as shown on the display and your system

will be ready for operation.

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Lectrosonics UCR411 User Manual Page 10

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