80 meter Digital frequencies

The 20-meter or 14-MHz amateur radio band is a portion of the shortwave radio spectrum, comprising frequencies stretching from 14.000 MHz to 14.350 MHz . The 20-meter band is widely considered among the best for long-distance communication (DXing), and is one of the most popular—and crowded—during contests.

The upper portion of the band, which is usually used for phone (voice), is sometimes referred to as 75 meters. In Europe, 75m is a shortwave broadcast band, with a number of national radio services operating between 3.9 and 4.0 MHz .

160 METERS1.840-1.850CW, SSB, SSTV and other wideband modes, intercontinental QSOs only1828.5DXpeditions CW Operations are frequently here1.916SSTV80/75 METERSDX CALLING FREQUENCIES ftp.unpad.ac.id › orari › library › library-sw-hw › amateur-radio › docs

The 70-centimeter or 440 MHz band is a portion of the UHF radio spectrum internationally allocated to amateur radio and amateur satellite use. The ITU amateur radio allocation is from 430 to 440 MHz; however, some countries, such as the United States, allocate hams 420 to 450 MHz.