Okayo TX-701 User manual

USER'S GUIDE
Plug-In UHF Wireless Audio-Link
Transmitter Module

N
otice : The changes or modifications not expressly approved by the
p
arty responsible for compliance could void the user’s authority to
operate the equipment.
IMPORTANT NOTE: To comply with the FCC RF exposure
compliance requirements, no change to the antenna or the device is
p
ermitted. Any change to the antenna or the device could result in the
device exceeding the RF exposure requirements and void user’s
authority to operate the device.
This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions: (1) this device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.

Operating Manual for Transmitter Module TX-701
Simple Introduction
Thank you for purchasing this plug-in UHF wireless Audio-Link
transmitter module TX-701. With up to 96 preprogrammed selectable
frequencies, this module could perfectly perform without any external
disturbance. Besides, with LCD display, this module could be operated
and used easily.This manual includes the complete functions and
operations of the wireless transmitter module. Please read this manual
carefully in order to operate and use this system to its fullest potential.
-1-

Description of Functions
Installation and Operation
-2-
1. LCD display
2.TX audio indicator
3. Low audio level indicator
4. High audio level indicator
5. Setting enter
6. Up/ Down selector
7. Power switch and volume control
8. Charging LED for PA system
9. Power switch for PA system
(2) (1) (3) (4) (5) (8) (9)(6) (7)
a. Turn the power switch (7) clockwise to turn on the
transmitter.
b. The LCD display (1) will show On and then the channel
used before turning off last time.
c. To select the channel, press the set button (5) and the
channel in LCD flash. Press up or down button (6) to
select the channel to transmit, and then press set button
again to enter the setting.

Don't leave transmitter or receiver in hot sun, on a radiator, or
near other sources of high temperature.
Avoid Excessive Heat
Transmitter and receiver may be damaged if dropped.
Avoid Rough Handling
Maintenance
-3-
d. Turn the volume control (7) to the proper position.
e. When transmitting the signals, the TX indicator (2) will light
Green to show the transmitting condition. The AF Level
indicator lights Yellow (3) to show the low audio, lights Red
(4)to show the high audio.

Specifications
-4-
RF output
10mW or 30mW (according to regulation)
Spurious emission
Less than 250 nW
Display status
LCD indicator displays channel or frequency
Channel select
SET, UP, DOWN key
Antenna
Built-in
Dimensions ( L* W * H )
88 * 64 * 24 mm
Weight
170 g
Oscillation type
Adjustable frequency
Pre-programmed max. 96 switchable channels
PLL synthesized control OSC
Carrier frequency range
Group 1. 740 ~ 752 MHz (96 ch.)
Group 2. 794 ~ 806 MHz (96 ch.)
Group 3. 863 ~ 865 MHz (16 ch.)
Switching bandwidth
Ambient temperature
Maximum deviation
Dynamic range
Pre/De- emphasis
Squelch
Max. 12 MHz
-10 ~ 50
50 kHz, with level limiting
110 dB
50 s
Tone key and noise lock dual-squelch
Frequency response
Operating range
70 Hz ~ 16 kHz (wireless)
50 ~ 70 M (open field) with built-in antenna