Title :
Measurements of building penetration by low orbit satellite signals at VHF
Author :
Zabela, R. ; Bostian, C.W.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
It is noted that radio propagation measurements are needed to determine whether links can be designed for indoor direct personal communication system to satellite operation, or if some sort of in-building gateway system with a rooftop transmitter will be required. To measure the attenuation of 137-MHz signals from the NOAA 9 and 11 satellites as they penetrate a building, one antenna was used to monitor the received signal at an unobstructed outdoor site and another antenna was used to characterize the received signal at a nearby indoor location. Initial measurements indicate that radio waves from a LEO satellite suffer little attenuation when they penetrate a building.<>
Keywords :
loss measurement; personal communication networks; radiowave propagation; satellite links; 137 MHz; LEO satellite; NOAA 9; NOAA II; VHF; attenuation; building penetration; indoor direct personal communication system; indoor location; low orbit satellite signals; radio propagation measurements; received signal; unobstructed outdoor site; Antenna measurements; Artificial satellites; Attenuation measurement; Buildings; Extraterrestrial measurements; Radio propagation; Radio transmitters; Receiving antennas; Satellite antennas; Satellite broadcasting;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221864
