Tropospheric Influence on Low-band Very High Frequency (VHF) Radio Waves

The objectives of this study are to understudy the effects temperature and relative humidity on low-band VHF signals, obtain a propagation model for signal transmission over Calabar ascertain suitability free space terrain. Results obtained shows that has no effect signals. terrain failed, as calculated results underestimated path losses in area. Multiple regression analysis was used suitable However, since studied meteorological variables signals area, measured could be attributed foliage, hills, distance away from transmitter other components which is propagated.