Symptoms
- Static or hissing over radio stations
- Signal drifts in and out
- Only certain stations are affected
- Reception was fine before moving the receiver or antenna
Likely causes
- CommonAntenna not extended or positioned correctlyFM antennas need to be extended and oriented for best reception, and AM antennas need to be rotated.
- CommonWeak signal area or distance from broadcast towerSome locations simply have weak over-the-air signal for certain stations.
- PossibleInterference from nearby electronicsTVs, routers, and LED lighting can introduce radio frequency interference.
- PossibleDamaged or disconnected antenna cableA loose or corroded antenna connection reduces signal strength.
- Less commonFailing tuner circuit in the receiverAn aging tuner section can degrade reception even with a good antenna.
What to do
- Fully extend the FM wire antenna and try different angles/positions, since even small movements can improve reception.
- For AM, rotate the receiver or loop antenna slowly while monitoring signal strength, since AM antennas are directional.
- Move the receiver and antenna away from TVs, routers, and other electronics.
- Check the antenna cable connection at the receiver for looseness or corrosion.
- Try an upgraded indoor or outdoor antenna if reception remains poor in a weak signal area.
- Compare reception on a different radio or receiver in the same location to determine if it's a location issue or receiver issue.
Tools and parts
Indoor FM antennaSearch: “indoor fm antenna receiver”
When to call a pro
If reception is poor across all stations even with a good antenna and no interference, the tuner may need professional inspection.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.