But with all the antennas in some new cars–high-tech luxury sedans may carry 18 or more–it takes a major engineering effort to design vehicles that do not bristle with metal quills. Today’s cars need ...

I live on a farm in Africa. I have at my disposal, time and the usual low tech stuff like wire timber nails etc. I have no experience in this field. metal wire... wrap it around the connections on the ...

Build as described above but omit the reflector. I use such an antenna for UHF (675MHz centre) DVB-T transmissions. It compares very favourably to commercial Yagis. Gain is about 6 dBi and it has two ...

The Family Radio Service, or FRS, is a system allowing short-range communications between friends and/or family. The system uses frequency modulation, or FM, signals, improving on the older citizen's ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you have trouble getting your local TV channels, an HDTV antenna amplifier can help clean up your ...

To use a smaller antenna, we need a higher signal frequency, and that’s what we do when we apply modulation to the signal. Modulation is simply encoding the low frequency signal in the information of ...

The number of antennas on a router dictates the number of signals that router can put out. More signals means wider reach and ...