Glitch Reducer (Rev 2)

Glitch Reducer (Rev 2)
The Glitch Reducer will eliminate most glitches before they get to the servos or electronic speed controllers. It will constantly output the last known "good" signal from the receiver. It will suppress any input signal outside of the signal range. It will also suppress the random input signals that are within the signal range.

Our Dynamic Adjustment System (DAS) will never fully reject any input signal. Most signal filtering systems that reject signals can sometimes reject too much at crucial moments. Combined with an input averaging system, DAS will filter out glitches and will always put your servo or ESC where it needs to be.

The Glitch Reducer is also designed to always output a good signal at the exact same rate as your transmitter. It automatically measures and averages the first couple signals to determine the frequency at which they occur. It will then output the correct signal at the same rate as your transmitter.

Glitch Reducers will not work with digital servos. They are intended for standard servos or ESCs that accept a 20ms PPM frame.

Note: Glitch reducers have only been tested with seperate components. There may be an issue with having one or more glitch reducers on mixer boards. Mixer boards are the Piccoboard, Piccoboard Plus, Feda/Hummingbird mixer board, TREC with version 2.0 firmware, and anything else that mixes the main and tail signals together. If you are using revo mix in your transmitter, or a Heading Hold gyro, there should be no problem. If you have any questions, Please ask.

Revision 2 adds an increased input voltage range and smoother operation over the entire signal range, plus lower power draw.


Weight: 1g
Power Consumption: less than 10mA
Input Voltage Supply (Vin): 3.3v to 7.5v
Output Voltage Supply Minimum(Vout): Vin-0.25v
Output Signal Maximum Voltage(Voh): Vin to 5.0v
Maximum Servo Current: 3.5A


  • Over 800 steps of signal input/output resolution.
  • Output timing adjusts the signal to ge exactly like the signal from the transmitter.
  • Filters out the signals that are beyond the transmitter limit.
  • Filters out rogue signals that are within the valid signal range.
  • Valid signals are averaged together to produce smooth output.
  • Signals are never fully rejected. The filtering process ensures that glitches have a very little effect on the output. This allows the pilot to retain control even at times of extreme glitching.

    Application Information:

    Glitch reducers should be placed between the receiver and the servo or ESC. The 3 wire plug on the glitch reducer is the input. The pins on the glitch reducer are the output. The brown wire is ground, the red wire is power and the orange wire is the signal. Some radio equipment has the color white instead of orange and black instead of brown. When plugging the glitch reducer into equipment with this color scheme, orient the glitch reducer so the black and brown wires are on the same side and the orange and white wires are on the same side.

    Extension Wires:
    When using a glitch reducer in conjunction with a servo lead extension cable, the servo should plug directly into the glitch reducer. The glitch reducer should plug into the extension cable and the extension cable should be plugged into the receiver. This allows the glitch reducer to eliminate the electrical interference generated by the long extension cable wires.

    Gyros are designed to react very fast to rotational acceleration. Therefore, using a glitch reducer between the gyro and servo/ESC may degrade the tail performance of you helicopter or airplane. The glitch reducer should be placed between the receiver and the gyro. This allows the glitch reducer to provide the gyro with a clean signal. The gyro will then be able to provide the servo/ESC with a very crisp control signal.

    Lost Model Alarms:
    Since the glitch reducer is designed to output a constant signal even when the receiver is not producing a signal, it should not be placed between lost model alarms and the receiver. The constant signal from the glitch reducer will not allow the lost model alarm to recognize that the receiver is no longer generating a signal. The glitch reducer can be placed between the lost model alarm and a servo if you wish to remove the glitches before they get to the servo.

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