What are the signs that my signal booster is oscillating

Here are signs that your signal booster is oscillating:
* Indicator Lights Many boosters have indicator lights that will signal when oscillation is occurring[1]. Red lights on the booster often indicate oscillation[2][3]. The lights might be solid red, blinking red, blinking green, or orange[3][7].
* Reduced Performance Oscillation can cause a lower-quality signal, and the booster may not perform as it should[5]. You might notice a moderate to non-existent signal increase[7].
* Automatic Shutdown By FCC regulation, cell signal boosters are required to auto-detect oscillation and immediately reduce power or shut down to correct the condition[2][3]. If oscillation is detected, the booster will automatically power down its gain, or signal boosting power, in an attempt to correct the oscillation condition[2]. The booster will not restart until the oscillation condition has been corrected[2].

To troubleshoot oscillation, try increasing the distance between the outside and inside antennas[2][3]. A straight line distance of over 30 feet (10 meters) or 20 ft (6 meters) horizontal distance and 13 ft (4 meters) vertical distance may be required[4]. If the issue persists, consult a professional installer or contact the manufacturer[1].