{"id":8179,"date":"2024-02-26T14:33:40","date_gmt":"2024-02-26T14:33:40","guid":{"rendered":"https:\/\/museumkesher.org.il\/catalog\/frequency-meter-mb-221\/"},"modified":"2026-04-03T14:37:06","modified_gmt":"2026-04-03T14:37:06","slug":"frequency-meter-mb-221","status":"publish","type":"catalog","link":"https:\/\/museumkesher.org.il\/en\/catalog\/frequency-meter-mb-221\/","title":{"rendered":"Frequency Meter MB-221 (BC-221)"},"content":{"rendered":"<p>HF frequency meter, 125 KHz to 20 MHz, used for transmitters and receivers\u2019 calibration.<br \/>\nGenerates accurate frequency, used for \u2018Zero beat\u2019.<br \/>\nUsed by the US military during WW2, designated BC-221.<br \/>\nUsed by the IDF during the War of Independence (1948) and the Sinai Campaign (1956).<br \/>\nUsing six BT-2 (22.5 Volts) and four BT-30 (1.5 Volts) batteries.<\/p>\n","protected":false},"featured_media":8155,"template":"","catalog_cat":[36],"period":[39,93],"class_list":["post-8179","catalog","type-catalog","status-publish","has-post-thumbnail","hentry","catalog_cat-tactical-radio","period-war-of-independence","period-sinai-campaign"],"acf":[],"_links":{"self":[{"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/catalog\/8179","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/catalog"}],"about":[{"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/types\/catalog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/media\/8155"}],"wp:attachment":[{"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/media?parent=8179"}],"wp:term":[{"taxonomy":"catalog_cat","embeddable":true,"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/catalog_cat?post=8179"},{"taxonomy":"period","embeddable":true,"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/period?post=8179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}