Can ETC be installed at the black dot area?
4 Answers
ETC cannot be installed in the black dotted area. When installing, peel off the protective film of the fixed adhesive and stick it on the front windshield of the car. Of course, avoid sticking it in the black area, as the solar panel will not receive sunlight and cannot charge. ETC working principle: Through the on-board electronic tag installed on the vehicle's windshield, dedicated short-range communication is established with the microwave antenna in the ETC lane of the toll station. Computer networking technology is used to perform background settlement processing with the bank, thereby achieving the purpose of vehicles passing through highway or bridge toll stations without stopping while paying the fees. Where can ETC be installed: For small vehicles such as cars and vans, the ETC card and OBU device are installed in the upper middle part of the front windshield, while for large vehicles such as trucks and buses, the installation position is in the lower middle part.
I have years of experience installing ETC, and choosing the wrong location can easily cause problems. Those black dots on the windshield are usually signs of aging or contamination and are indeed unsuitable for ETC installation. Because the black dots can interfere with signal transmission, toll stations may fail to recognize the device. I once tried installing it there, and it frequently malfunctioned at toll booths, wasting a lot of time. The correct approach is to select a clean, transparent area near the inner center of the rearview mirror, avoiding dark or heated wire zones. Before installation, thoroughly clean the glass to ensure there’s no dust or spots, then test the device for smooth operation. Remember, once fixed in place, avoid moving it to prevent loosening and affecting performance—this is crucial for hassle-free driving. If the black dots are severe, consider repairing the windshield or consulting a professional shop instead of forcing an installation yourself.
As a young urban commuter who values practicality and convenience, installing the ETC device at the black dots is absolutely not advisable. Those black dots may obstruct signals, causing device malfunctions. I've seen many car owners report that choosing the wrong location leads to embarrassing situations where they get stuck at toll stations on highways. The ideal position is the center of the windshield's upper section, free from any spots. After installation, remember to test the toll collection effect to ensure quick passage. During installation, be careful not to cover other sensor positions and maintain clear visibility, which is crucial for safe driving. If the windshield has imperfections, clean it thoroughly before installation, and minimize exposure to direct sunlight to prolong the device's lifespan. Choosing the right spot saves time and hassle, making it easier to handle rush hour traffic.
From a technical perspective, the ETC device communicates with toll stations via electromagnetic waves. Installing it on the windshield where there are black dots can weaken the signal, leading to misreads or failures. These black dots represent impurities or refractive areas that interfere with transparency and transmission efficiency. It is essential to avoid such spots and choose a standard clean area for installation to ensure maximum signal stability. After installation, check if the recognition is normal and reposition if necessary to prevent lagging or incorrect charging issues. With the correct positioning, daily maintenance becomes simple, avoiding repair hassles and ensuring smooth commutes.
