Lectrosonics UDR200c User Manual

Page 15

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15

Wireless Diversity Receiver

Rio Rancho, NM – USA

Receiver Setup Window

The Receiver Setup window is invoked by double-clicking or
right-clicking on a receiver pane in the Main window. It per-
mits detailed configuration, monitoring and control of an
individual receiver.

The Meters and Status frame contains large RF and Audio
meters which behave the same way as the smaller ones in
the panes on the Main window. The Opti indicators indicate
diversity status in the same way as the LEDs on the receiver
itself. The Limit indicator lights whenever the audio at the
transmitter is in limiting. The Block indicator shows the fre-
quency block to which the receiver is tuned. The Batt and
Temp indicators show battery voltage and receiver internal
temperature just like the similar controls in the panes on the
Main window. The Pilot indicator has three states: ON (green),
OFF (red), and BYPASS (yellow). Double-clicking the Pilot
indicator allows the pilot tone bypass mode to be turned on or
off.

The Tuning and Groups frame shows the receiver’s current
tuning and allows it to be tuned in real time. Each receiver
has four groups of up to 16 named frequencies each. The
controls in this frame can be used to view and change the
programming of these groups. The small drop-down list is
used to select a group, 1 through 4. If the current channel is
already stored in the current group as a named frequency, the
name will be displayed in the large drop-down list, and the
Rename and Delete buttons will be enabled. If the current
channel is not stored in the current group, the large drop-
down list will be blank and the Add button is enabled. The
large drop-down list may be used to tune to a named fre-
quency directly. To add a named frequency to a group, use
the spin button control to select the desired frequency, then
click Add and supply a name. To rename a named frequency,
tune to it, click Rename, and supply a new name. To remove
a named frequency from a group, tune to it and click Delete.
The Restore button may be used to quickly retune to the
frequency that was tuned before the Receiver Setup window

was invoked.

The Walk Test Recorder
enables one person to
perform a complete system
walk test. A “strip chart”
style recording of RF signal
strength versus time is
combined with recorded
audio from the PC’s sound
card. The result is an ability

to “play back” a walk test,
monitoring RF performance
as well as judging audio
quality. If the audio contains
clues about the walker’s
route, it is possible to deter-
mine the location and sever-
ity of dropouts at playback
time. Button controls re-
semble traditional tape
recorder controls. From left

to right, they are Record, Seek Start, Seek End, Play, Stop,
and Clear. If the length of the recording is longer than will fit
in the window, dragging the mouse in the window will cause it
to scroll. To play only a portion of the recording, the mouse
may be clicked at the starting location prior to pressing the
Play button. In order to use the audio portion of the Walk Test
Recorder, it is necessary to connect an audio cable from the
headphone jack of the receiver to the PC sound card audio
input (line input preferred).

The Spectrum Analyzer is useful for finding clear frequen-
cies. To use, click Run and let it accumulate data for a while.
The tallest peak on each frequency is saved. Once the spec-
trum analyzer has been run, the receiver can be tuned by
clicking the mouse inside the spectrum display.

The UDR200C is capable of running the spectrum analyzer
twice as fast as older versions of the receiver. The UDRpanel
software will detect which version of the receiver is being used
and automatically adjust the scan speed. It is perfectly normal
for the older UDR200B to scan half as fast as the UDR200C.

File Menu

The file menu lets you save and load sets of named frequency
groups, or exit back to the Main window. The Load Groups
command loads settings from a disk file into the receiver.
Save Groups As writes the receiver’s current named fre-
quency group settings to a disk file. Exit to UDRpanel closes
the Receiver Setup window and returns to the Main window.

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