Audio-Technica ATW-T310B - Manual (Page 5)

3000 Series Installation and Operation
5
The squelch level is adjustable from 15 dB (the default value) to 39 dB
in 6 dB steps. Increasing the squelch level – also called “tightening
the squelch” – can cause a reduction in useable range of the wireless
transmitter, so use the lowest value that reliably mutes the unwanted
RF signals. (If interference is a problem, first consider trying a different
frequency.)
Antenna Power
The antenna input jacks also can provide +12V DC output on their
center pins to power inline RF devices. A maximum of 60 mA can be
drawn from each of the jacks. While an accidental short-circuit will not
harm the internal 12V supply, make certain that an antenna cable shield
does not contact the center conductor. Antenna Power (“ANT.PWR”) is
selected (switched on or off) from the LCD menu.
Pre-coordinated Frequency Scan Groups 1-9
The nine scan groups provided on the 3000 Series receivers simplify
the selection of usable frequencies in a multi-channel wireless system.
If you are using multiple systems, stay within one of the nine frequency
groups for all of your systems. The available frequencies within each
group have been selected for simultaneous use, eliminating the
frustration encountered when trying to select compatible frequecies in
a multi-channel system.
Scan Groups 8 and 9 have been designed to allow for use on adjoining
stages. Use Group 8 on one stage and Group 9 on a second nearby
stage. Or use these two groups in two different rooms, with one room
using Group 8, and the second using Group 9.
Receiver Functions
Function
Menu
Default
Setting* Choices
(Edit)
▲▼
Wrap-
around**
(Receiver powers-up at Frequency)
▲▼ Frequency Lowest in
band† All frequencies
in band Yes
▲▼ High-pass
Filter
HP OFF HP OFF, HP–6,
HP–12, HP–18 No
▲▼ Meter Hold MH OFF MH OFF
MH ON Yes
▲▼ Squelch SQ 15 dB SQ 15 dB to
SQ 39 dB in
6 dB steps No
▲▼ Antenna
Power
OFF PWR OFF
PWR ON Yes
▲▼ Group 1 Lowest in
frequency
group All frequencies
in Group 1 No
▲▼ Group 2 Lowest in
frequency
group All frequencies
in Group 2 No
▲▼ Group 3 Lowest in
frequency
group All frequencies
in Group 3 No
▲▼ Group 4 Lowest in
frequency
group All frequencies
in Group 4 No
▲▼ Group 5 Lowest in
frequency
group All frequencies
in Group 5 No
Receiver Functions
Function
Menu
Default
Setting* Choices
(Edit)
▲▼
Wrap-
around**
▲▼ Group 6 Lowest in
frequency
group All frequencies
in Group 6 No
▲▼ Group 7 Lowest in
frequency
group All frequencies
in Group 7 No
▲▼ Group 8 Lowest in
frequency
group All frequencies
in Group 8 No
▲▼ Group 9 Lowest in
frequency
group All frequencies
in Group 9 No
▲▼ Quit
(exit Menu)
QUIT Press Mode/
Set to exit –
* To reset to Default values, hold in the Mode/Set button while
pressing the Power button to turn on the unit.
** Continue in the same Up/Down direction and choices “wrap around”
to the other end of the range.
† Band I: 482.000 – 507.000 MHz; Band C: 541.500 – 566.375 MHz;
Band U: 606.000 – 631.000 MHz; Band D: 655.500 – 680.375 MHz;
Band G: 721.500 – 746.375 MHz; Band E: 795.500 – 820.000 MHz;
Band F: 840.125 – 864.900 MHz
Transmitter Controls And Functions
Refer to Figures E, F, G and H for an overview of transmitter features
and controls.
LCD Window
The backlit Liquid Crystal Display presents a great deal of setup and
operating information clearly and conveniently (See examples in
Fig. J ).
The LCD in the transmitters is designed for greatest contrast and best
viewing with the window rotated somewhat away from the viewer
(about 30 degrees), not straight-on, for a more convenient holding/
viewing position. The display is illuminated with a backlight when you
power on the device and when you press Set to access transmitter
functions. The backlight remains on during the Set process, only
turning off if no action is taken within 30 seconds or if Quit is pressed;
otherwise, it automatically turns off in ten seconds.
Power/Mute Button
The transmitters have a combination Power and Mute switch. When
used in combination with the programmed choices explained below,
the various functions available to the transmitter user may be tailored to
fit personal preferences or particular situations of use.
Power On/Off
To turn the transmitter on, press and hold the Power/Mute button until
the green power indicator and the LCD window come on (about 1-2
seconds). The operating frequency will show in the window after the
power-up sequence.
To turn the transmitter off, press and hold the Power/Mute button again,
until the green power indicator and the LCD window are extinguished
(about 1-2 seconds). The LCD window will show “PWR.OFF” before
shutdown.
Mute Off/On
When the transmitter is muted, it produces RF with no audio signal
(continued)