Rf Check Mode Setting; Channel Detection; Squelch Adjustment - Toa WT-4800 Instrucciones De Uso

7.2. RF Check Mode Setting

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 Menu/Enter key for over a second to place the unit in setting mode.
Step 3. Select the item of "Rf CHECK." (Different setting items are displayed on the screen each time the
Menu/Enter key is pressed. Holding down the Menu/Enter key causes the display to cycle through the
setting items in rapid sequence.)
Step 4. Press the Indication selector key to check idle channels by hearing the sound. (Antenna A alternates
with Antenna B with each depression of the Indication key.)
Step 5. After check completion, press the Indication selector key to exit the RF check mode.

7.3. Channel Detection

Step 1. Press the Menu/Enter key for over a second to place the unit in setting mode.
Step 2. Select the item of "CHANNEL CHECK." (Different setting items are displayed on the screen each time
the Menu/Enter key is pressed. Holding down the Menu/Enter key causes the display to cycle through
the items in rapid sequence.)
Step 3. Press the Indication selector key. Channel detection begins and idle channels of the "VACANT Ch=X"
indication are displayed in sequence.
Step 4. Press the Menu/Enter key after check completion and exit channel detection mode.

7.4. Squelch Adjustment

The WT-4800 tuner has the squelch function that silences its output in the condition that a radio signal to be
received is a certain level of signal strength. This strength level can be varied by means of the squelch control.
7.4.1. Squelch Level Setting
Step 1. Press the Menu/Enter key for over a second to place the unit in setting mode.
Step 2. Select the setting item of "SET SQ LEVEL." (Different setting items are displayed on the screen each
time the Menu/Enter key is pressed. Pressing the Menu/Enter key causes the display to cycle through
the setting items in rapid sequence.)
Step 3. Press the Indication selector key to display the indication of ">>SQ Level=XX." (The value increases
as the key is pressed.)
Step 4. Select the desired value and press the Menu/Enter key. This registers the selected SQ level and
terminates the SQ level setting.
The squelch control is graduated from "0" to "10". The wireless tuner's sensitivity is the highest and radio
signals can be received in wide areas when the control is in the "0" position, while the "10" position makes the
sensitivity the lowest, limiting signal reception only to narrow areas.
The wireless microphone's signal transmission distance varies largely depending on its ambient conditions.
The table below provides guidelines on the squelch control vs. transmission distance.
Squelch Control Graduation
Transmission Distance (%)
Note : Transmission distance when in "0" position is 100%.
7.4.2. Squelch control setting position
• Set the control to the "0" position in locations free from interference.
• Set the control to the position that does not cause any reception loss of wireless microphone signals.
0 1 2 3
100 85 70 60
4 5 6 7
50 40 35 30
8 9 10
25 20 15
9