Could be interferences from electrical appliances : fridges, microwave ovens, television screens or crts, power lines running close by. Also the tuning may not be optimal.
Copyright © 2024 QA.XPDF.PUB - All rights reserved.
Answers & Comments
Could be interferences from electrical appliances : fridges, microwave ovens, television screens or crts, power lines running close by. Also the tuning may not be optimal.