Passage: Extreme interference at the longer edge of the 150<unk>200 meter band <unk> the official wavelengths allocated to amateurs by the Second National Radio Conference in 1923 <unk> forced amateurs to shift to shorter and shorter wavelengths; however, amateurs were limited by regulation to wavelengths longer than 150 meters (2 MHz). Vashoma vane rombo rakanaka vakawana mvumo yakakosha yekutaurirana kwekuyedza pamawavelengths mapfupi pane 150 metres vakapedza mazana emamita maviri emamita (100 MHz) muna 1923 kusanganisira yekutanga transatlantic nzira mbiri dzekutaurirana. Pakazosvika 1924 vamwe vazhinji vanonyatsobvumirwa ma amateur vaive vachiita zvinongedzo zve transoceanic pamakiromita zviuru zvitanhatu (9,600 km) uye zvimwe. Musi wa21 Gunyana 1924 vanoverengeka veamende muCalifornia vakapedza nzira mbiri dzekutaurirana neamateur muna Gumiguru. Musi wa19 Gumiguru New Zealand; zvisinei, amateur vakamanikidzwa nemutemo kune wavelengths akareba kupfuura 150 metres (2 MHz).
nhatu