Lectrosonics UCR401 - Manual (Page 15)

UHF Digital Hybrid Wireless ® Receiver
Rio Rancho, NM 15
To use the integrated scanning function, press both SEL
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.
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 (800 kHz).
Pressing the SEL Up or Down buttons will scroll the
cursor coarsely across the tuning range. The transmit-
ter 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 again will shift the
display to the FINE VIEW window which shows an ex-
panded portion of the spectrum around the cursor.
In the FINE VIEW window, each vertical band repre-
sents one frequency the UCR401 is capable of tuning.
The upper right corner shows the transmitter switch
settings for the frequency indicated by the cursor. In this
Frequency Scan Mode
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 SEL Up and Down buttons.
Pressing the SEL Up button will make the display scroll
left, showing higher frequencies. Pressing the SEL
Down button will make the display scroll right, showing
lower frequencies. The cursor remains in place while
the display scrolls left or right
The scanning mode is used to find a clear operating fre-
quency. Scroll through the screen and find a frequency
where no RF signals (or in the worst case, only very
weak RF signals) are present. With the cursor on this
frequency, simultaneously press the SEL Up, Down and
MENU buttons 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 SEL Down button for USE NEW. To
return to the frequency you were using before entering
the scan mode, press the SEL 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.
Switch Settings - shows the
transmitter switch settings
- will change rapidly while the
unit is scanning .
Cursor - shows relative position
of the scanner within the
25 MHz band of the receiver.
Scan level
indications - showing
relative level of RF
activity across the
25 MHz bandwidth of
the receiver.
Remaining unscanned
part of band.
Scan & View Window Elements
RF Level indicators
Transmitter
Switch Settings Cursor (center bar)
SCROLL reminders
Fine View Window Elements