The main purpose of a VHF antenna is to provide a radiator for the power that the transmitter in the radio produces and to radiate this energy in the correct direction .
Read moreWhich propagation wave provides the best communication in the VHF band?
Space wave propagation mode is used for the transmission of VHF and UHF because UHF and VHF can neither be propagated through Ground waves (due to high absorption in the atmosphere) nor via Sky waves (due to non reflection of the ionosphere).
Read moreHow do VHF radios transmit?
To use your VHF, turn it on and pick a channel, set the squelch to the point where you don’t hear any white noise, and begin talking . Things to remember when you are on the radio: Monitor channel 16 when you are not actively in conversation with someone else.
Read moreDoes VHF need line of sight?
VHF radio waves propagate mainly by line-of-sight , so they are blocked by hills and mountains, although due to refraction they can travel somewhat beyond the visual horizon out to about 160 km (100 miles).
Read moreWhat wave is used for VHF?
VHF, in full very high frequency, conventionally defined portion of the electromagnetic spectrum including any radiation with a wavelength between 1 and 10 metres and a frequency between 300 and 30 megahertz . VHF signals are widely employed for television and radio transmissions.
Read moreIs VHF a radio wave?
VHF includes radio waves from 30 MHz to 300 MHz . VHF waves must not exceed the local radio horizon of 100 miles. VHF frequencies are less likely to be interrupted by atmospheric noise, issues with electrical equipment, and other interferences.21 Eyl 2015
Read moreWhat is the range of a 1 watt UHF radio?
Range – 1 watt power – 7Km The power is switchable from 1 down to 0.5 watt output for extra long battery life.
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