AM Signal-to-Noise Ratio
AM signal-to-noise ratio compares the wanted audio signal with background noise during AM radio reception, expressed in decibels (dB).
A higher ratio means less noise relative to the signal under the stated measurement conditions. It describes the tuner's AM reception path, including when that tuner sits inside a receiver.
AM Signal-to-Noise Ratio — Tuner
Use AM signal-to-noise ratio to compare how far the received audio stands above noise. Compare figures measured with equivalent signal strength, modulation and noise measurement methods; an unexplained number supports only a limited comparison.
The published rating does not predict reception at your antenna. Weak broadcasts and local electrical interference can make listening noisier. Keep AM and FM figures separate, and do not confuse this ratio with sensitivity or rejection of neighbouring stations.