Inspection Procedure 3: Noise Appears at Certain Places when Travelling (AM).
DIAGNOSIS PROCEDURE
STEP 1. Check the noise occur when entering or near a particular structure (building, tunnel, mountain, etc).
Q.
Dose the noise occur when entering or near a particular structure (building, tunnel,
mountain, etc).?
STEP 2. After taking the following measures to prevent the noise, check that no noise appears.
| (1)Change to a different station with a stronger wave to boost resistance to interference. |
| (2)Suppress high tones to reduce noise. |
| (3)Extend antenna completely. |
Q.
Do the following measures eliminate the noise?
STEP 3. Ask the owner about the state of the noise.
| (1)Find out the following information from the owner. |
| (2)Place where the noise occurs. |
| (3)Locality conditions (valley, mountain, etc). |
| (4)Name and frequency of stations affected by noise |
Q.
Which is the noise, vehicle noise or external noise?
STEP 4. Check that there is no noise.
Q.
Does noise still exist?
