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Cable Connections
Refer to Figure F (cable rear exit) or Figure G (bottom exit) for
connecting positions. When using a screwdriver on the antenna
terminals, always support the PC board.
Center Conductor:
Wrap the center conductor(s) clockwise
around its screw and tighten snugly. (If using RG8, it is good
practice to bend its center conductors using pliers, not force
them around the screw terminal.)
Shield:
It’s most effective to remove the cable clamp entirely,
properly position the shield portion of the cable, and then care-
fully reinstall the cable clamp over the shield. Make certain that
the shield (and cable) are firmly clamped, and that no shield
wires are loose or touching the center conductor.
Especially when using RG8 or other large, stiff cable, it’s a good
idea to provide some form of clamping of the cable near the
antenna’s cable entrance for strain relief.
Fig. F Rear Cable Exit
Antenna
Housing
PC Board
Rear Plate
Housing
Mounting
Fig. G Bottom Cable Exit
Cable Exit
Setting Gain
The gain switch on the PC board is intended only to compen-
sate for signal lost in the antenna cable. Using "extra" gain is not
necessarily better! Observe the following chart for proper gain
switch setting:
Gain Setting RG58-Type Cable RG8-Type Cable
Hi (+10 dB) 20-50' (6-15 m) 50-150' (15-50 m)
Mid (+4 dB) Up to 20' (6 m) Up to 50' (15 m)
Lo (–2 dB) This setting may work best when
many channels are in use in the room,
or when external RF noise is a problem.
Both antennas in a diversity system should be set to the same
gain position. Other than setting the gain switches, do not
make any adjustments to the circuitry.
After stripping the cables, making cable connections and setting
gain, replace the antenna housings. When re-installing the hous-
ing, be careful to avoid hitting the clear plastic "light pipe" for
the LED power indicator. Once the housings are secured with
the silver screws, connect the antenna cables to the diversity
receiver or antenna distribution system and turn on the system.
Then check for power indications at the antennas and proper
operation of the overall wireless system.
Specifications
Antenna Type Half-wavelength dipole with RF amplifier
Operating Frequencies
ATW-A62P 656-668 MHz
ATW-A72P 728-740 MHz
Output Impedance 50 ohms
Nominal Amplifier Gain +10 dB (Hi), +4 dB (Mid), –2 dB (Lo),
switch selected
Power Required +12V DC on RF cable center conductor,
14 mA per antenna
Dimensions 2.44" (62 mm) W x 5.51" (140 mm) H x
5.91" (150 mm) D
Weight 9.7 oz (275 g) each
Accessories Furnished 2 AT8667 mounting brackets; shrink
tubing (for use with RG8-type cable);
4 each of wood screws, 3.0 mm and
3.5 mm machine screws
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224 330/686-2600 www.audio-technica.com
P51398-B/W P#232302730 ©2001 Audio-Technica U.S., Inc. Printed in U.S.A.
One-Year Limited Warranty
Audio-Technica professional wireless systems purchased in the U.S.A. are warranted
for one year from date of purchase by Audio-Technica U.S., Inc. (A.T.U.S.) to be free of
defects in materials and workmanship. In event of such defect, product will be
repaired promptly without charge or, at our option, replaced with a new product of
equal or superior value if delivered to A.T.U.S. or an Authorized Service Center, pre-
paid, together with the sales slip or other proof of purchase date.
Prior approval
from A.T.U.S. is required for return.
This warranty excludes defects due to normal
wear, abuse, shipping damage, or failure to use product in accordance with the
instructions. This warranty is void in the event of unauthorized repair or modification,
or removal or defacing of the product labeling.
For return approval and shipping information,
contact the Service Dept.,
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224.
Except to the extent precluded by applicable state law,
A.T.U.S. will have no liabil-
ity for any consequential, incidental, or special damages; any warranty of mer-
chantability or fitness for particular purpose expires when this warranty
expires.
This warranty gives you specific legal rights, and you may have other rights which
vary from state to state.
Outside the U.S.A., please contact your local dealer for warranty details.
Antenna
Housing
PC Board
Rear Plate
Housing
Mounting