• FCC license requirement
The operation of the TOA wireless microphone sys-
tems must conform with the rules and regulations
contained in the code of Federal Regulations, 47,
Telecommunications, Part 74 and Part 90. These
regulations are available from the U.S. Government
Printing Office.
• D.O.C. (CANADA) license requirement
The Department of Communication (D.O.C.) recom-
mends wireless microphones operating in the 174 ~
216 MHz band be licensed on the following basis:
1) on a no-protection non-interference basis;
2) frequencies shall be selected and assigned form
within television channels 7 to 13 (174 ~ 216 MHz);
3) operational areas shall be restricted to locations
that are at least 8 miles outside the Grade B
contour of television stations that operate on the
channel in which the frequency assignment falls;
4) location of operation to be shown on license; and
5) licenses shall resolve interference complaints that
result from microphone operation.
SPECIFICATIONS
Regulations
Carrier Freq. Range
Freq. Stability
RF Carrier Power
Effective Radiated Power
Input Range
Modulation (Max.)
Tone Freq.
Controls
Battery
Current Drain
Battery Life
Battery Indicator
Antenna
Ambient Temperature
Colour
Dimensions
Weight
FCC Part 90
169.445 ~171.945MHz
± 0.005%
15mW
128~144 dBspl
± 15kHz Deviation
32.768kHz
Power ON/OFF
LR6 (1.5 Volts) Alkaline
90mA Typ. (1.5V)
More than 12 hours
Green and Red LED's
Internal Dipole
–10°C~50°C (14°F~122°F)
Dark Gray
Ø50 x 225mm (Ø1.97" x 8.86")
390g (0.858 Ibs.) with battery
Versions
WM-280 US version
WM-281 CA version
WM-280 UK version WM-280AS version
FCC Part 74
174 ~216MHz
± 0.005%
15mW
D.O.C.
174 ~216MHz
0.005%
15mW
MPT 1345
173.8 ~175.0MHz
± 10kHz
Less than 2mW
DOC 60
202.1 ~203.7MHz
0.002%
15mW
± 40kHz Deviation
± 15kHz Deviation
± 40kHz Deviation
± 15kHz Deviation
*Specifications are subjects to change without notice.
• Accessories:
Microphone holder
Color identification labels
Operating instructions
TOA Corporation
KOBE, JAPAN
133-07-064-40
TYPICAL FREQUENCY RESPONSE
FREQUENCY IN HERTZ
RELATIVE
RESPONSE
IN
dB
1
1
1
