Hello, I have tried to move a servo motor at a distance of 4 meters, But I have not been able to get it to work, the servo motor behaves strangely, it hardly moves,I used a servomotor tester, I put a current of 1 ampere at 5 volts, but it did not move as I turned the knob of the servomotor tester, it worked for me at a distance of one meter, I want to know if this is possible, to be able to move it at a longer distance, thanks for reading this message, sorry my English is not very good. Greetings.
Are you referring to the length of the wires on the servo? Please post details of the wires you used. Preferably, links or photos of the actual wire and/or its specifications, not written descriptions.
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You need a line driver/receiver pair for each servo. RS-485 may do that. And sufficiently fat wires for the servo power.
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Hi, @mario_aca
Welcome to the forum.
Can you please post a link to data/specs of your servo?
What are you using to power and drive the servo?
Can you please post an image of your project?
Thanks.. Tom.. 
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Thank you very much for your answers and recommendations.
I am using a servo motor mg995 180 degrees, supply current 100 milliamps, supply voltage of 3-7 volts.
also a servo motor tester to check the twist.
It's this one below.
And I'm using a cell phone charger as a power source, it's 5 volts at 1 amp. It is used, I had it saved.
This is how I have it connected:
When I turn the knob of the servo motor tester it works. But when I put more cable from the servo motor tester it didn't work, I connected a utp cable to it how to extend the distance, but nothing moved.
I would like to know how to make it move a greater distance. to be able to close a faucet.
Gracias por su ayuda.
Excuse me for how the setup looks, it's rudimentary.
This cable is the one I use to power the servo motor tester:
Have a nice day.
Yes friend, I would like to be able to control the servomotor at a distance of approximately 6 meters, Please post more information specific to the accessories I use, greetings and that you are well,
Hi,
Do you have a DMM?
It looks like you are suffering from voltage drop on your power cable to the servo.
Try using heavier gauge wire.
At the TowerPro site;
Specification:
Weight: 55g
Dimension: 40.7×19.7×42.9mm
Stall torque: 9.4kg/cm (4.8v); 11kg/cm (6v)
Operating speed: 0.20sec/60degree (4.8v); 0.16sec/60degree (6.0v)
Operating voltage: 4.8~ 6.6v
Gear Type: Metal gear
Temperature range: 0- 55deg
Dead band width: 1us
servo wire length: 32cm
Current draw at idle 10MA
No load operating current draw 170MA
Stall current draw 1200MA
Servo Plug: JR (Fits JR and Futaba)
Your servo will draw up to 1200mA when moving or holding a load.
The leads on the servo are of a gauge just for close use of the device like in an RC plane or car.
Longer wires are needed for the high current and longer run, especially 6m.
Tom.. 
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Hello Tomás, I do have a multimeter, I used a cell phone charger with more power, it is 5 volts at 3 amps, but the cable was thin, perhaps that is why it did not work. thanks for your recommendation.
I'll buy thicker wire, maybe it will work.
Thanks for your help.
Maybe, but in all the photos you posted, you showed almost everything, except the wire that your question asks about.
Hello, this is the cable that I used to try to control the servo motor, I connected it with the Power cable to servo motor tester and from servo motor tester to servo motor. The cable is utp for ethernet connections. The cable is 3 meters long.
Greetings friend.
Thanks, do you know if I can control it with a servo motor tester or does it take an Arduino? Be fine.
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