Lectrosonics VRFIELD (Narrowband) - Manual (Page 14)

VR Field
Setting Noise Reduction Mode
1. Access the SmartNR Setup Screen.
2. Select Receiver Module 1.
Selected.Receiver
Receiver.Module.Boxes SmartNR.Mode
Note: If the selected Receiver Module is part of
a ratio or frequency diversity pair, then setting
the audio output level for one receiver in the pair
automatically sets the other receiver in the pair to
the same setting.
3. Rotate the MENU/SELECT control to display the
desired noise reduction setting: NORMAL, FULL
or OFF. (See SmartNR Setup Screen in VR Field
System Reference Manual.)
4. Repeat Steps 2 and 3 for each receiver module, or
receiver module pair.
Set Transmitters to Match Receiver Frequencies
Using the clear channels discovered and recorded in
the Locate Clear Channels section, refer to the Com­
patible Frequency Chart and select channels free from
intermodulation problems. (See Frequency Coordina­
tion.)
The following procedure uses Receiver Module 1 to
describe setting up transmitter and receiver channels.
In the event there is no receiver module installed in slot
1, the same procedure can apply to any of the receiver
modules.
Note: The following procedure does not address
possible problems associated with non-Lectrosonic
equipment. Interference problems from non-
Lectrosonics equipment is beyond the scope of
this quick-start guide.
1. From the Overview Screen, press Receiver Select
button “1” to Display the Receiver Detail Screen for
a Receiver Module 1. Select a transmitter with the
same Frequency Block as Receiver Module 1 and
set the transmitter’s Frequency Select Switches to
match the operating frequency assigned to Receiv­
er Module 1.
Note: In switched diversity mode, each
transmitter/receiver module combination operates
independently. In ratio diversity mode, one
transmitter is assigned to a receiver pair. In
frequency diversity mode, two transmitter/receiver
module combinations are paired. The diversity
pairs are always 1-2, 3-4, 5-6.
2. Repeat Step 1 for all the transmitter/receiver mod­
ule combinations.
3.. Turn on the transmitter one at a time and observe
the RF Signal strength meter for the associated
receiver module in the Overview Screen.
4. Repeat Step 3 until all transmitters are turned on
and good signal strength is verified at each of the
associated receiver modules, or receiver module
pairs.
5. Turn off one of the transmitters and observe the RF
signal strength for the corresponding receiver or
receiver pair in either the Overview Screen or the
Receiver Detail Screen. The RF signal should drop
to a minimum.
If the RF signal does drop to a minimum, turn the
transmitter back on and repeat Step 3 through 4 for
all transmitter/receiver module combinations.
If RF is still present, an intermodulation problem
may exist, or external interference that was not
detected before may be present. Select another
compatible frequency and repeat the entire proce­
dure.
Note: Anytime a transmitter/receiver module
combination is tuned to a new frequency, it is
necessary to repeat the entire procedure to
ensure the new frequency does not introduce new
intermodulation problems.
Frequency Diversity Mode Audio Balancing
In this diversity mode, receiver modules are paired (1-2,
3-4 or 5-6), but each receiver module of the pair is as­
sociated with its own transmitter.
Frequency Diversity has two modes of operation: nor­
mal mode and test mode. Test mode is automatically
activated when the DivMode Setup Screen is active and
Frequency Diversity is selected. In this mode, the audio
is always blended 50/50 to allow balancing of the trans­
mitters. On exiting the DivMode Screen, normal mode
is activated and the blending ratio depends on the RF
signal strengths from each transmitter.
Note: In Frequency Diversity mode, both
transmitters must be the same type and
model. For example, a Lectrosonics 200 Series
transmitter and Digital Hybrid (400 Series)
transmitter will not work as a pair in Frequency
Diversity Mode regardless of the Compatibility
Mode setting. Using identical transmitters is highly
recommended.
1 LECTROSONICS, INC.