System Operation

3000 Series Installation and Operation

Turn the receiver on by pressing in the Power switch. Do not switch on the transmitter yet.

The Alert indicator and the LCD window will light up; the normal- operation LCD display will appear after 1-2 seconds (Fig. D-1). If any of the bars show in the “RF” bar-graph meter, there may be RF interference in the area. If this occurs, select another frequency as explained below. (If the Meter Hold function has been selected, one of the RF bars will be flashing, indicating the lowest RF level received.)

Selecting/Setting Frequency

Selection of the desired operating frequency is made through the function menus. It’s usually best to start by setting the receiver’s frequency, to determine there is no local interference on that frequency. Then, always make certain to set the transmitter to the receiver’s exact frequency. The receiver’s unique Digital Tone Lock system squelches the audio only, permitting any RF energy on the frequency to show on the “RF” bar-meter.

Note: It is often convenient to start with the factory-default frequency, if there is no RF energy showing on the RF bar meter.

Using the Automatic Scan Function to Set Receiver Frequency

1.	Press the Mode/Set button once; then the “RF” and “AF” scales will
	disappear from the window and only the frequency will appear in
	the LCD window. (The receiver is now in the Menu mode.) See
	Figure D-2.
2.	Use the Up arrow button to reach Group 1 through Group 9. Press
	the Mode/Set button once to select one of these nine scan groups.
	The lowest frequency in the selected scan group will appear in the
	LCD window.
3.	Press the Up arrow button to begin the scan. “G SCAN” will flash in

Setting Receiver Frequency Manually

1.Press the Mode/Set button once; then only the frequency will appear in the LCD window. (The receiver is now in the Menu mode.) See Figure D-2.

2.Press the Mode/Set button again; the Alert light will come on and

the first three digits of the frequency will flash in the window. (The receiver is now in the Edit mode, Fig. D-3.)

3.Use the Up/Down arrow buttons to change the first three digits (MHz) to the desired frequency. Choose a frequency appropriate for your area, avoiding frequencies with active TV channels. Press either arrow for single steps, or hold down either arrow for rapid cycling through the band. Frequencies “wrap around” to the other end of the range when the top or bottom of the band is reached.

4.Press the Mode/Set button once to set the first three digits to the desired frequency.

5.Use the Up/Down arrow buttons to change the second three digits (kHz) to the desired frequency. Again, be certain to choose a frequency appropriate for your area, avoiding frequencies with active TV channels.

6.To activate this frequency selection, press and hold the Mode/Set button until the word “STORED” appears in the receiver’s window. (If you do not wish to complete this particular selection, just press the Mode/Set button once. The word “ESCAPE” will appear briefly in the window and the receiver will return to the Menu mode.)

7.When finished entering a frequency, press the Down arrow button once to move to “QUIT”. Then press the Mode/Set button once to exit the menu. The “RF” and “AF” scales will reappear in the window, indicating the return to normal operation.

Transmitter On…

Turn on the transmitter by pressing and holding the Power/Mute button (Fig. E/F) for a second or two, until the green power indicator and the LCD window have come on.

the LCD window.

4. The first available frequency will flash in the LCD window. To activate this frequency selection, press and hold the Mode/Set button until the word “STORED” appears in the LCD window. (If you do not wish to complete this particular selection, just press the Mode/Set button once. The word “ESCAPE” will appear briefly in the window and the receiver will return to the Menu mode.)

5. After you have activated your frequency selection (step 4), the “RF”

and “AF” scales will reappear in the window, indicating the return to

normal operation.

6. If you are using multiple systems, all frequencies must be selected

from the same group (Group 1 through Group 9). After completing

the first receiver’s scan and frequency selection, set the transmitter

to the same frequency (see Setting Transmitter Frequency

instructions); leave the transmitter On, and run the next

receiver’s automatic scan function. Always set a receiver-transmitter

pair to the same frequency before using the automatic scan function

to select a frequency for the next receiver. “End” will show on

the receiver display when no further usable frequencies remain in

Fig. M

BATT	MIC
M-1. Normal Operation	*
* ATW-T310b only: “INST”	*

MENU
BATT	MIC

M-3. Menu Mode (Frequency)

BATT	MUTE MIC
M-2. Operation with Mute On

	EDIT
BATT	MIC

M-4. Edit Mode (Frequency)

the selected scan plan.

NOTES ON USING THE RECEIVER SCAN FEATURE:

•Selecting low power on your transmitter can be helpful for multiple system setup, if you are experiencing problems with radio frequency interference.

•To prevent raised noise floors that a receiver scan might interpret as radio frequency interference: during setup, keep all transmitters at least three feet apart and at least 15 feet from the receivers.

Setting Transmitter Frequency

1.Press the Set button once and the small word “MENU” will appear above the frequency. Press the Set button again and the small

flashing word “EDIT” will appear to the right of “MENU”. See Figures M-3and M-4.

2.Use the Up/Down arrow buttons to change the first three digits of the transmitter frequency. Press either arrow for single steps, or hold down either arrow for rapid cycling through the range. Frequencies “wrap around” when the top or bottom of the band is reached. Select the exact frequency displayed on the receiver.

3.Press the Set button once to set the first three digits to the desired frequency.