Toa WT-5800 Notice D'utilisation page 5

6.2.5. Channel detection
Step 1. Press the Set key for over a second to place the unit in setting mode.
Step 2. Select the setting item "CHANNEL CHECK" with the Up or Down key.
Step 3. Press the Set key.
Channel detection begins, and an idle channel number with frequency is displayed on the screen.
When 2 or more idle channels exist, each of them can be displayed in sequence with the Up or Down
key.
If no idle channel is detected, "Vacant CHANNEL doesn't exist" is displayed.
Step 4. Press the Set key to register the selected channel.
This terminates the Channel detection, and the display returns to the "CHANNEL CHECK" indication.
Note
When leaving the original channel unchanged, select "Exit" with Up or Down key and press the Set
key. Then, the display returns to the "CHANNEL CHECK" indication.
Step 5. When any other setting is not needed, select "Exit" with the Up or Down key and press the Set key.
The unit returns to the normal operating state.
6.2.6. RF check
Step 1. Adjust the volume control to decrease the volume. (Big noise is output if the unit is placed in RF check
mode when no signal is present.)
Step 2. Press the Set key for over a second to place the unit in setting mode.
Step 3. Select the setting item "RF CHECK" with the Up or Down key.
Step 4. Press the Set key to check idle channels by hearing sound.
The receiving antenna alternates between Antenna A and Antenna B with each depression of the Up
or Down key.
Step 5. Press the Set key again after check completion.
This exits the RF check mode, and the display returns to the "RF CHECK" indication.
Step 6. When any other setting is not needed, select "Exit" with the Up or Down key and press the Set key.
The unit returns to the normal operating state.
6.2.7. Confirming firmware version
Step 1. Press the Set key for over a second to place the unit in setting mode.
Step 2. Select the setting item "About Model" with the Up or Down key.
Step 3. Press the Set key to display the firmware version.
Step 4. Press the Set key again to exit the firmware display mode.
The display returns to the "About Model" indication.
Step 5. When any other setting is not needed, select "Exit" with the Up or Down key and press the Set key.
The unit returns to the normal operating state.
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6.2.8. Rewriting the inner Emphasis circuit data
By using the optional RW-4800, data written in the built-in Emphasis circuit can be changed to improve noise
suppression. For its method, refer to the instruction manual supplied with the RW-4800.
If changed, the circuit of the WM-5220/5320 series Wireless microphone should also be changed.
The wireless tuners are compatible with the WM-4200 and WM-4300 Wireless microphones when shipped
from the factory. Once this change has been performed on the tuners, however, no more compatibility is
ensured.
Tip
Emphasis circuit works in such way that it increases signal strength at high frequencies in the wireless
microphone, and decreases to the original signal level at the tuner, thereby resulting in noise reduction.
The post-compressor Emphasis is adapted in the tuners when shipped from the factory, and changed to the
pre-compressor Emphasis when the circuit data is updated.
7. HOW TO CHECK AND DEAL WITH INTERFERENCE
[Order of Actions (Action Flowchart)]
Place unit in RF check mode and check
signal condition of the channel.
[No]
Any
interference?
[Yes]
Change bank/channel numbers to those of
idle channels.
It is convenient to use "CHANNEL CHECK"
when selecting idle bank/channel numbers.
Place unit in RF check mode for a while and
check signal condition of the channel.
[No]
Any
interference?
[Yes]
Most interference can be avoided by operations above. If interference
is still encountered, select channel having relatively less interference
using RF check switch, then continue following operations.
Adjust squelch control to limit service area.
[No]
Any
interference?
[Yes]
When radio interference is still encountered,
consult shop from where unit was purchased.
Refer to p. 8 "6.2.6. RF check."
Use as is.
Refer to p. 6 "6.2.2. Bank number/frequency setting."
Refer to p. 8 "6.2.5. Channel detection."
Use as is.
Refer to p. 7 "6.2.3. Squelch level setting."
Use as is.
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