What should you do if another operator reports that your station's 2 meter signals were strong just a moment ago, but now they are weak or distorted?
Why might the range of VHF and UHF signals be greater in the winter?
What antenna polarization is normally used for long-distance weak-signal CW and SSB contacts using the VHF and UHF bands?
What can happen if the antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?
When using a directional antenna, how might your station be able to access a distant repeater if buildings or obstructions are blocking the direct line of sight path?
What term is commonly used to describe the rapid fluttering sound sometimes heard from mobile stations that are moving while transmitting?
What type of wave carries radio signals between transmitting and receiving stations?
Which of the following is a likely cause of irregular fading of signals received by ionospheric reflection?
Which of the following results from the fact that skip signals refracted from the ionosphere are elliptically polarized?
What may occur if data signals arrive via multiple paths?
Which part of the atmosphere enables the propagation of radio signals around the world?
How might fog and light rain affect radio range on the 10 meter and 6 meter bands?
What weather condition would decrease range at microwave frequencies?