Sanwa MT-4, Operating Manual

Page 4

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  The receiver antenna consists of a coaxial cable and a reception wire (the thin tip at the end of the coaxial cable). When you 

mount the receiver antenna, do not bend the reception wire. Reception performance decreases if the reception wire is bent.

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  The antenna wire is delicate, therefore, handle with care. Do not pull on the antenna wire with 

force. Do not cut or extend the antenna wire. 

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  The coaxial cable (the thicker portion of the antenna) can be bent into gentle curves, however, do 

not bend the coaxial cable acutely, or repeatedly bend it, or the antenna core can be damaged.

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  The antenna wire should be installed into a vertical plastic tube per your particular model's assembly instructions. Keep the 

receiver antenna as far away from the motor, battery, and ESC as possible.

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  There is a danger of runaway operation if connectors shake loose during use. Make sure that the receiver, servo(s), and switch 

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  The receiver is susceptible to vibration, shock, and moisture. Take appropriate measures to protect against 

vibration and moisture. Failure to take appropriate measures could result in runaway operation or damage 

to the receiver. 

We suggest wrapping the receiver in shock-absorbing foam or securing it with double-sided 

foam tape when installing it into your model.

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  When installing the receiver and routing the receiver antenna, avoid contact with any carbon or metal chassis 

components. Contact between metal parts mounted on a model can result in electrical noise, which can 

adversely effect receiver performance and possibly result in runaway operation or damage to your model.

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a noise suppression capacitor, excessive electrical noise generation can cause runaway operation and/or 

result in damage to your model.

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  Use rubber vibration absorbers with servos. Direct transmission of engine vibration to servos can cause servo failure and 

possibly result in runaway operation with damage to your model.

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activate the components in reverse order as the servos may start up inadvertently.

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power.

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  The 

MT-4 2.4GHz FHSS-4T

 transmitter features an internal antenna installed inside the vertical back portion 

of the carrying handle. Do NOT grab the carrying handle during use! Doing so can block the RF signal, resulting in the loss of 

control of your model.

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  During use, hold the transmitter so that the antenna is orientated as close to vertical as possible at all times. This provides the 

best RF signal between the transmitter and the receiver. You should never point the antenna directly 

at your model, nor should you ever 'follow' your model with the antenna, as this results in a weakened 

RF signal. For more information, see the 

Transmitter Features Diagrams

 section on page 6.

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  Do not expose the transmitter or any other components to excessive heat, moisture, fuel, exhaust 

residue, etc.



  If the outer case becomes dirty, it can be cleaned with a soft dry cloth. If the outer case becomes soiled, it can be cleaned with 



  The 2.4GHz frequency band may be used by other devices, or other devices in the immediate area may cause interference on 

the same frequency band. Always before use, conduct a bench test to ensure that the servos operate properly. Also, conduct 

checks with the transmitter as distant as possible from your model.

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  The response speed of the receiver can be affected if used where multiple 2.4GHz radio controllers are being used, therefore, 

carefully check the area before use. Also, if response seems slow during use, stop your model immediately and discontinue use.

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  If the 2.4GHz frequency band is saturated (too many radio controllers on at once), as a safety precaution, the radio control 

system may not Bind. This ensures that your radio control system does not get hit by interference. Once the frequencies have 

been cleared, or the saturation level has dropped, your radio control system should be able to Bind without any problems.

Antenna Tube

Coaxial Cable

Antenna

Reception Wire

USAGE PRECAUTIONS

2.4GHz FREQUENCY BAND PRECAUTIONS

TRANSMITTER PRECAUTIONS

RECEIVER PRECAUTIONS

Turn the transmitter 'ON' first and then turn the receiver 'ON'. After using your model,

turn the receiver 'OFF' first, then turn the transmitter 'OFF'. It can be dangerous if you

Before use, double-check that the transmitter and receiver batteries have sufficient

a damp cloth and liquid detergent. Do not use any solvents to clean the outer case. Solvents will damage the finish. 

connectors are securely fitted.

With electric-powered models, be sure to fit any brushed motors with a noise suppression capacitor. Without