This is digital position as related to microcontrollers etc.
position 0 to 255
servos however normally run from 75 (full one way)
to 225 (full other direction)
Mid-point somewhere in between (about 150)
The display reads 70- 230. This is adjustable by moving the dial. I'm not an expert but I am assuming this is not the degree but maybe the frequency you are asking the servo to move to. Example- 70 Hz is all the way counter clockwise and 230hz is all the way clockwise. If you push the button on the tester it will sweep from 70-230 back and forth slowly all by itself until you push the button again.
I suppose the digits are part of PWM impulse duration in uSec. Just add one more zero to trailing end of digits, like 700-2300 uSec. The middle point should be at 1500 uSec (i.e. 150 on display.) To be sure, I'll measure it with osciloscope, when i'll get it.
The reading is milliseconds which determines the position of the servo's,1.50ms(150) usually being centre.Found this piece on the web which may help understand it a bit more.
How do you communicate the angle at which the servo should turn? The control wire is used to communicate the angle. The angle is determined by the duration of a pulse that is applied to the control wire. This is called Pulse Coded Modulation. The servo expects to see a pulse every 20 milliseconds (.02 seconds). The length of the pulse will determine how far the motor turns. A 1.5 millisecond pulse, for example, will make the motor turn to the 90 degree position (often called the neutral position). If the pulse is shorter than 1.5 ms, then the motor will turn the shaft to closer to 0 degress. If the pulse is longer than 1.5ms, the shaft turns closer to 180 degress.
I was wondering the same thing. Can I use this to run my dyno hooked to a esc. I want to use one of the four servo ports as a esc connection then adjust the dial to run esc up to speed. Is this possible. I have seen some videos doing this. But the only difference in the videos is that the led display reads the voltage sent to the esc not hz for the servos position. Is this possible to do?
No, this is just for testing servos: doe they work at all? do they go full range?what's the incremnet?. you can also center them of course. They will stay in position but next time you give them power they center. This does not stay in the plane - it's for your workbench.
hope that hepls