{"id":11857,"date":"2024-07-27T21:42:24","date_gmt":"2024-07-27T11:42:24","guid":{"rendered":"https:\/\/amateurradiosupplies.com.au\/?post_type=product&#038;p=11857"},"modified":"2025-07-29T11:19:30","modified_gmt":"2025-07-29T01:19:30","slug":"icom-ah-4-hf-automatic-antenna-tuner","status":"publish","type":"product","link":"https:\/\/amateurradiosupplies.com.au\/index.php\/product\/icom-ah-4-hf-automatic-antenna-tuner\/","title":{"rendered":"Icom AH-4 HF Automatic Antenna Tuner"},"content":{"rendered":"<p>AH-4: The AH-4 is designed for use with all Icom HF transceivers. It stores up to 45 memory channels with minimum SWR settings to provide quick re-tuning. Weather-resistant construction, easily fitted in a variety of locations. No adjustments are necessary, just connect the control and antenna cables. Tunes a wide frequency coverage from 3.5 to 50 MHz with a 7 m or longer wire antenna. <\/p>\n<p>Specifications:<br \/>\nFrequency Coverage: 3.5 MHz to 54 MHz (with a long wire antenna, 7 m; 23 ft or longer) 7 MHz to 54 MHz (with an optional AH-2b)<br \/>\nMaximum input power: 120W PEP<br \/>\nPower supply requirement: 13.8 V DC\u00b115% (negative ground)<br \/>\nCurrent drain: Less than 1 A<br \/>\nAuto tuning accuracy: VSWR 2.0:1 or less<br \/>\nTuning time: Approximately 2 to 3 seconds (Maximum 15 seconds)<br \/>\nNumber of memory ch: 45<br \/>\nInput impedance: 50 \u03a9<br \/>\nWeight:\t1.2 kg; 2.65 lb<br \/>\nDimensions: (projections not included) 172(W) x 71(H) x 230(D) mm ; 6.77(W) x 2.8(H) x 9.06(D) in<\/p>\n<p>Compatible with: Icom 703, 703+, 706 MkIIG, 718, 746, 746Pro, 756, 756Pro, 756ProII, 756ProIII, 7000 and 7300.  <\/p>\n","protected":false},"excerpt":{"rendered":"<p>AH-4: The AH-4 is designed for use with all Icom HF transceivers. It stores up to 45 memory channels with [&hellip;]<\/p>\n","protected":false},"featured_media":14677,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[45],"product_tag":[],"class_list":{"0":"post-11857","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-second-hand-items","8":"first","9":"instock","10":"shipping-taxable","11":"purchasable","12":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/product\/11857","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/comments?post=11857"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/media\/14677"}],"wp:attachment":[{"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/media?parent=11857"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/product_brand?post=11857"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/product_cat?post=11857"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/product_tag?post=11857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}