7
7
Wireless Operating Frequencies
System Operating Frequencies
Frequency Selection
Each transmitter/receiver system operates on a single factory-
aligned, crystal-controlled frequency. Available frequencies are
shown in the chart below.
Operating frequency is specified by a two- or three-character
code, such as “T2” or “11G,” in addition to the actual
frequency in MHz. The frequency of each transmitter appears
on a label on the outside of the unit. The frequency of each
receiver appears on a label on the back of the unit and the
frequency of each system appears on the outer carton. For
future reference, please record them in the space provided.
Because most of these authorized frequencies are shared
with TV broadcasting, frequency selection is largely dependent
upon which TV broadcast channels are in operation
where
the wireless system is to be used.
RF Interference
If you encounter receiving interference (from other than an
operating TV station), often it can be eliminated by adjusting
the receiver’s squelch control, as described on page 5.
Please note that wireless frequencies are shared with other
radio services. According to Federal Communications
Commission regulations, “Wireless microphone operations
are unprotected from interference from other licensed opera-
tions within the band. If any interference is received by any
Government or non-Government operation, the wireless
microphone must cease operation…”
If you need assistance with operation or frequency selection,
please contact your dealer or the A-T professional division.
Extensive wireless information also is available on the A-T
Web site at www.audio-technica.com.
Application
Freq. Code
Freq. (MHz)
• Traveling frequencies:
T2
169.505
(Normally work anywhere in the U.S.A. and Canada,
T3
170.245
but as a result tend to be crowded.)
T8
171.905
• For use only where there is no TV Channel 7:
7G
175.800
7
I
176.200
• For use only where there is no TV Channel 8:
8D
181.200
8M
183.200
8S
184.200
• For use only where there is no TV Channel 9:
9F
187.600
9Q 189.800
• For use only where there is no TV Channel 10:
10C
193.000
10J
194.400
10W
196.800
• For use only where there is no TV Channel 11:
11G
199.800
11S
202.200
• For use only where there is no TV Channel 12:
12L
207.000
12S
208.200
12V
208.600
• For use only where there is no TV Channel 13:
13B
210.800
13Q
213.800
Multi-channel Systems
Following are groupings of frequencies suggested for multi-channel wireless systems.
• For use where TV channels 7, 9, 11 and/or 13 are operating: 8D-8M-8S-10C-10J-10W-12L-12S-12V
Traveling frequencies T2, T3 and/or T8 may be used with any of the above frequencies except for: 8D,
8M and 10C. Interference may result from the use of these frequency combinations.
• For use where TV channels 8, 10 and/or 12 are operating: 7G-7
I
-9F-9Q-11G-11S-13Q or
7G-7
I
-9F-11G-11S-13B-13Q
Traveling frequencies T2, T3 and/or T8 may be used with any of the above frequencies with no
interference problems.
For future reference, please record your system information here (the serial numbers appear inside
the battery compartment of each transmitter, and on the bottom of each receiver):
Operating Frequency
Freq. Code
Frequency
MHz
Receiver
Model Serial
Number
Transmitter
Model Serial
Number
