{"id":10894,"date":"2025-11-11T05:01:19","date_gmt":"2025-11-11T05:01:19","guid":{"rendered":"https:\/\/museumkesher.org.il\/?post_type=catalog&#038;p=10894"},"modified":"2026-04-04T09:24:12","modified_gmt":"2026-04-04T09:24:12","slug":"portable-radio-set-mq-21","status":"publish","type":"catalog","link":"https:\/\/museumkesher.org.il\/en\/catalog\/portable-radio-set-mq-21\/","title":{"rendered":"Portable Radio Set MQ-21 (Navy MAB)"},"content":{"rendered":"\n<p>Used by US marines and paratroopers during WWII, designated Navy MAB.<\/p>\n\n\n\n<p>Used by the IDF in the War of Independence (1948) at platoon level, with a range of ~1,500 meters.<\/p>\n\n\n\n<p>Frequency range 2. 3 to 4.5 MHz, single crystal-controlled channel, AM (Amplitude Modulation), 0.2 watts output power.<\/p>\n\n\n\n<p>Telescopic whip antenna (seven sections, 70\u201d long), with a loading coil at antenna base.<\/p>\n\n\n\n<p>Headsets assembled in canvas skull cap worn under standard metal helmet.<\/p>\n\n\n\n<p>Transceiver carried in canvas backpack. Before jumping, it was carried packaged &nbsp;on paratrooper\u2019s chest.<\/p>\n\n\n\n<p>On\/Off switch on microphone cable.<\/p>\n\n\n\n<p>Power supply: Lead-Acid battery (6.4 Volts, 5 Amper-Hour) with vibrator power unit or dry battery 19027A (1.5, 67.5, 135 Volts and 6 Volts), allowing about ten hours operation.<\/p>\n\n\n\n<p>Vacuum tube technology \u2013 seven miniature tubes. <\/p>\n\n\n\n<p>Weight: 4 Kg.<\/p>\n","protected":false},"featured_media":10880,"template":"","catalog_cat":[36],"period":[39],"class_list":["post-10894","catalog","type-catalog","status-publish","has-post-thumbnail","hentry","catalog_cat-tactical-radio","period-war-of-independence"],"acf":[],"_links":{"self":[{"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/catalog\/10894","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\/10880"}],"wp:attachment":[{"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/media?parent=10894"}],"wp:term":[{"taxonomy":"catalog_cat","embeddable":true,"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/catalog_cat?post=10894"},{"taxonomy":"period","embeddable":true,"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/period?post=10894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}