![]() The CW is most oldest and simple way or radio communicating. Usually the location of the carrier indicates it. However, pirates or clandestine broadcasters may not use 5 Hz step so you must find the correct frequency yourself. For instance the station should be tuned properly at 7200, or 7205, 7210, 7215 and so on. AM BC station can be easily recognized my its carrier that looks like long line and audio coming from both sides. If you select AM you should hear them correctly. If you tune to them with USB selected you will hear duck speaking voices or strange noises made by music. ![]() To recognize the signal mode by using waterfall. ![]() The kHz is mostly used in shortwave only the VHF and UHF use the MHz. The difference between kHz and mHz are such 9450 kHz and 9.450 MHz, 14996 and 14.996 MHz. Note: other online radios use Megahertz not kilohertz. You can zoom the waterfall with a mouse wheel when holding on it. Scroll around the waterfall with the left mouse button or with mouse wheel when holding the mouse on the tuner. One of the more popular options is uTwente’s WebSDR. See the SDR list at the bottom for more remote receiver locations. In addition to our guides, we also list the important frequencies of military and number stations as well as an SDR list for these stations. This guide contains information on how to use a Software defined Radio (SDR), buying and owning your own SDR, Signal reception and identification basics and much more. ![]() The Number Stations Listeners Starter Guide is a guide dedicated for people who want to start listening in to transmissions on shortwave radio or military/number station communications. ![]()
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