hleaves@ruby.vcu.edu (EAVES,HUGH) (01/12/91)
I always seem to get great standing wave ratio's for my car's CB antenna (1.2-1.7 range). How does the car act as such a good ground for the antenna? From what I've been reading here, the ground plane has to be tuned or very large. My car certainly isn't 38 feet across! Hugh ******************************************************************************* ** Hugh L. Eaves ** Internet: hleaves@ruby.vcu.edu ** ** Medical College of Virginia ** Bitnet: hleaves@vcuruby ** ** Department of Human Genetics ** Voice: (804) 371-8754 ** ***************** All non-incendiary communication welcome! *******************
tad@ssc.UUCP (Tad Cook) (01/14/91)
In article <61302@brunix.UUCP>, hleaves@ruby.vcu.edu (EAVES,HUGH) writes: > I always seem to get great standing wave ratio's for my car's CB antenna > (1.2-1.7 range). How does the car act as such a good ground for the antenna? > From what I've been reading here, the ground plane has to be tuned or very > large. My car certainly isn't 38 feet across! 38 feet? That is over one full wavelength at CB frequencies! Considering that a quarter wave at 11 meters is only about 8 and a half feet, it is not surprising that the car body would provide a reasonable ground for the antenna to work against. I run a mobile station on the 20 mtr ham band, and get great results, although the same size antenna would be more efficient on 11 mtrs. Tad Cook Seattle, WA Packet: KT7H @ N7HFZ.WA.USA.NA Phone: 206/527-4089 MCI Mail: 3288544 Telex: 6503288544 MCI UW USENET:...uw-beaver!sumax!amc-gw!ssc!tad or, tad@ssc.UUCP