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The wireless microphone system shall be of professional quality with an operating frequency
range of 692 to 722 MHz with 64 selectable channels and simultaneous operation of up to sixteen
systems. The transmission method shall be frequency modulation (F3E) using a PLL-based
modulation system. RF carrier power shall be no greater than 50 mW. Transmission distance as
measured in free field shall be 492 ft. (150 m). The system shall be FCC and UL listed with a five
year manufacturer's warranty.

The wireless receiver shall have 64 selectable channels and a built-in scanner function to scan
the RF environment and indicate available channels. The receiving method shall be double
super-heterodyne using antenna switching diversity. Specifications shall include a S/N ratio of
greater than 110 dB (A-weighted), harmonic distortion of less than 1% and frequency response of
100 - 12k Hz, ±3 dB. The receiving sensitivity shall be greater than 80 dB with 20 dBµV input and
40k Hz deviation. Squelch types shall be carrier, noise and tone key with a variable squelch
sensitivity of 18 - 40 dBµV and a 32.768k Hz tone key frequency. The receiver shall have two
antenna inputs, each with BNC-type connectors, 75 ohm impedance and 9 VDC, 30 mA,
available for remote antennas. The unit shall also have two antenna outputs, with BNC-type
connectors, 75 ohm impedance, and 0 dB gain, to provide antenna distribution to a maximum of
two additional receivers. The audio outputs shall be balanced type with XLR-M jack, and
unbalanced type with 1/4" phone jack, both with an output impedance of 600 ohms and
switchable sensitivity between MIC (-60 dBV / 1 mV and LINE (-20 dBV / 100 mV). A Mix Input,
unbalanced type with 1/4" phone jack with an input impedance of 10k ohms and sensitivity of -20
dBV / 100 mV shall allow the connection of the output of a second receiver or other audio source
to be mixed with the main receiver output signal. The front panel shall include an LCD for RF and
AF monitoring as well as frequency setting and scanner functions. Front panel LED's shall include
ANT A/B and an AF PEAK that lights at 3 dB below clipping. Front panel controls shall include
Menu/Enter, Power, RF/AF/Next and Volume. The wireless receiver shall be powered from the
AC mains using a supplied AC-DC adapter with a power consumption of 250 mA (12 VDC). The
unit shall operate within a temperature range of +14° F to +122° F (-10° C to +50° C).Unit
construction shall be black resin with dimensions of 8.27” x 1.76” x 7.09” (210 x 44.6 x 180 mm)
and weight of 5.2 lbs.(2.35 kg).Included accessories shall be two whip antennas and an external
AC-DC adapter (120 VAC, 60 Hz).Up to two units shall be rack-mountable in one standard 19"
rack height with an optional rack-mount kit.

The handheld wireless microphone transmitter shall be dynamic type with a cardioid pattern and
capable of a maximum input level of 145 dB SPL. The lapel microphone with bodypack shall be
electret condenser type with a cardioid pattern and be capable of a maximum input level of 120
dB SPL. The transmission method shall be frequency modulation (F3E) with a PLL-based
modulation system operating in the frequency range of 692 - 722 MHz with 64 selectable
channels. The RF carrier power shall be no greater than 50 mW with maximum deviation of ±40k
Hz and a tone key frequency of 32.768k Hz. The units shall operate for a minimum of 10 hours
using a 9 V (6LR61), alkaline type battery. A power LED shall glow continuously to indicate
normal operation and flash to indicate low battery level (< 6 VDC). The transmitter shall utilize a
1/4 wave helical antenna. Transmitter controls shall include Power On/Off, Frequency
Bank/Channel Select and Input Sensitivity Adjust. The bodypack shall include a TB-4M type input
connector compatible with TA-4F type and a rotatable attachment clip. The transmitters shall
operate within a temperature range of +14° F to +122° F (-10° C to +50° C). The transmitters
shall be constructed of black resin with an additional rubber coating on the handheld transmitter.
Dimensions (W x H x D) shall be 2.06" diameter.x 11" L (52.2 x 279.4 mm) for the handheld
transmitter and 2.44” x 5.59” x 1.26” (62 x 142 x 32 mm) for the lapel bodypack transmitter. The
lapel microphone cable length shall be 4.76 ft.(1.45 m). The weight (with battery) shall be 0.60
lbs.(270 g) (handheld) and 0.33 lbs.(150 g) for the lapel/bodypack. Included accessories shall be
a frequency adjust screw driver and storage case, stand adapter (handheld) and rotatable lapel
clip (lapel/bodypack).

The antenna distributor shall be suitable for use in both the VHF and UHF frequency ranges. The
unit shall have two paralleled antenna inputs on each of the front and rear panels with BNC-type
connectors, 75 ohm impedance and 9 VDC / 25 mA available for remote antennas. The unit shall
have eight rear panel antenna outputs, four from each front/rear-panel antenna input, BNC-type
connector and 75 ohm impedance. Four rear panel DC outputs, 12 VDC, shall be available for
powering compatible wireless receivers. The front panel shall include Power On/Off and Power
LED. The antenna distributor shall be powered from the AC mains (120 / 230 V AC selectable).
The unit shall operate within a temperature range of +14° F to +122° F (-10° C to +50° C). Unit
construction shall be black painted steel with dimensions of 16.54” x 1.73” x 8.02” (420 x 44 x
203.8 mm) and weight of 7.83 lbs. (3.55 kg). Included accessories shall be one IEC power cord
and four DC cables. The unit shall be rack-mountable and occupy one standard rack height with
an optional rack-mount kit.

The remote dipole antenna shall be suitable for use in the UHF frequency range of 680 - 880
MHz. The antenna gain shall be greater than 8 dB with a V. S. W. R. of less than 3. The output
impedance shall be 75 ohm with an operating distance of 115 ft. (35 m) maximum using RG-6U
cable or 164 ft. (50 m) maximum using RG-11U cable. The antenna power requirement shall be 7
- 12 VDC with current consumption of less than 24 mA supplied from the wireless receiver or
antenna distributor. The unit shall have a mounting hole pitch of 3.29" (83.5 mm). The operating
temperature shall be +14° F to +122° F (-10° C to +50° C). Unit construction shall be AES resin,
off-white with dimensions of 4.13” x 5.51” x 4.96” (105 x 140 x 126 mm) and weight of 0.66 lbs.
(300 g).

The diversity wireless receiver shall be TOA model WT-4800.
The wireless handheld microphone shall be TOA model WM-4200.
The wireless lapel microphone with bodypack shall be TOA model WM-4300.
The antenna distributor shall be TOA model WD-4800.
The remote dipole antenna shall be TOA model YW-4500.
The wireless diversity receiver rack-mount kit shall be TOA model MB-WT3 (one unit) / MB-WT4
(two units).
The diversity antenna distributor rack-mount kit shall be TOA model MB-15B.