For radio enthusiasts, AM, FM, SW is a familiar English abbreviation, the content is clear at a glance, but may be relatively unfamiliar to SSB.
SSB is the English abbreviation of single sideband, simply put, the electromagnetic waves transmitted by ordinary provincial and municipal radio stations, are the upper and lower two parts of the sinusoidal electromagnetic wave and a carrier composition, the upper and lower two parts in professional language is composed of two sidebands and a carrier, normal amplitude detection needs all of these, and our advanced radios, such as S2000, H501, PL990 only need to receive a single sideband to receive, as long as a sine wave can be, It realizes the function of doing big things with small money. Low-power shortwave stations basically use this mode to transmit signals, because in doing so, the maximum transmission distance can be achieved with the minimum power.
In the past, for the monitoring of shortwave radio SSB, a five-level radio operation certificate was required, but now with the progress of the times, monitoring no longer requires a five-level operation certificate, and the public or enthusiasts can listen through their own professional equipment.
The upper sideband of the single sideband is generally called USB, the lower sideband is generally called LSB, and the radio frequency is generally written directly without indicating the upper and lower sidebands, which refers to the USB upper sideband.
Because the single sideband is basically a low-power radio station, there are enthusiasts around the world to communicate, and it is not like traditional radio stations, fixed point timing, so when receiving monitoring, it still requires a certain luck component. If you need to try to receive, you can receive the station above the single sideband frequency table given in the Desheng S2000 manual.