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Configuring a DWX System
Quick Check
When there is not enough time for a step-by-step configuration of the system, such as during an event or
concert, check the following three items to verify that the system has been configured properly.
Conditions for checking
Perform the check after confirming that all antennas and cables are installed, settings for the antenna gain, TX
RF power, RX attenuator, and used frequencies are configured, and the RX equipment is turned on.
Items for checking
Turn off all TX equipment, and check that RF level meters for all RX equipment are off (i.e., not lit).
Turn on all TX equipment except one, check that the RF level meters are off (i.e., not lit) for the RX with the
same frequency as the TX that is turned off, and repeat this check for each TX.
Turn on all TX equipment, and check that the RF indicators for all RX equipment are always lit green under
all envisioned conditions.
If all the above conditions are met, you can reliably operate the system without concerns.
If there is not enough time to check all envisioned operating conditions
' Turn on all TX equipment, and check that the RF level meters for all RX equipment show 4 to 6 segments
If the conditions for , , and ' are met, you can operate the system with reasonable reliability.
The body effect has an influence of 10 dB to 20 dB. If the body effect is not present under the normal state,
the addition of the body effect will result in a drop of 10 dB to 20 dB. If the body effect is present under the
normal state, the loss of the body effect will result in an increase of 10 dB to 20 dB. If the RF level meters
show 5 segments under the normal state, the addition or loss of the body effect will result in a showing of 3
or 7 segments respectively, leaving you with an RF level that provides reasonable reliability (RF indicator is lit
green).
If conditions are not met
56
Making and Checking RF Settings (UHF)
under the normal state (i.e., normal installation at a fixed position).
Note
is not met, interference exists. Remove computers, Bluetooth mice, mobile phones, game
If condition
devices, and other signal transmitting devices away from the area. If the problem persists after removing
the above, interference from another system may be present. Perform a clear channel scan, and reselect
a frequency without interference.
is not met, third-order intermodulation distortion exists, but as long as condition
If condition
you can reliably operate the system.
In addition to checking condition
segments.
If time allows, check that conditions
antenna gain, attenuator, and TX output levels to ensure even more reliable operation.
in such cases, check that the QL meter always shows more than 4
and are met after adjusting the antenna setup positions,
is met,
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