{"id":2371,"date":"2023-08-15T10:47:50","date_gmt":"2023-08-15T10:47:50","guid":{"rendered":"https:\/\/smartfreq2u.com\/?post_type=product&#038;p=2371"},"modified":"2026-03-26T09:08:58","modified_gmt":"2026-03-26T09:08:58","slug":"icom-ic-m304-mobile-radio","status":"publish","type":"product","link":"https:\/\/smartfreq2u.com\/index.php\/product\/icom-ic-m304-mobile-radio\/","title":{"rendered":"Icom IC-M304 Mobile Radio (VHF)"},"content":{"rendered":"<h4>General<\/h4>\n<ul>\n<li>Frequency range : Tx 156.025-157.425MHz | Rx 156.050-163.275MHz<\/li>\n<li>Usable channels : USA, CAN, INT, WX channels<\/li>\n<li>Type of emission: 16KOG3E, 16K0G2B<\/li>\n<li>Power supply: 13.8V DC #15%<\/li>\n<li>Current drain (at 13.8V DC): T\u00d7 5.5A (at 25W output) | Rx 1.5A (at AF max.)<\/li>\n<li>Operating temperature range: -20\u00b0C to +60\u00b0C; -4\u00b0F to +140\u00b0F<\/li>\n<li>Antenna impedance: 5052 (SO-239)<\/li>\n<li>Dimensions (W\u00d7H\u00d7D, projections not included) : 153\u00d767\u00d7133mm ; 6\u21532\u00d72\u215d\u00d75\u00bc in.<\/li>\n<li>Weight (approx.): 825g; 1.8lb<\/li>\n<li>NMEA formats: NMEA version 2.0 or 3.01<br \/>\nRMC, GGA, GNS, GLL<\/li>\n<\/ul>\n<h4>Transmitter<\/h4>\n<ul>\n<li>Output power: 25W or 1W (at 13.8V DC)<\/li>\n<li>Modulation system: Variable reactance frequency modulation<\/li>\n<li>Max. freq. deviation: \u20215kHz<\/li>\n<li>Frequency error: +10ppm<\/li>\n<li>Spurious emissions: Less than -70dBc (at 25W)<\/li>\n<li>Adj. channel power: More than 70dB<\/li>\n<li>Audio harmonic distortion: Less than 10% (at 60% dev.)<\/li>\n<li>Residual modulation: More than 40dB<\/li>\n<\/ul>\n<h4>Receiver<\/h4>\n<ul>\n<li>Intermediate freq. : 1st 21.7MHz, 2nd 450kHz<\/li>\n<li>Sensitivity: 0.22\u03bcV typical at 12dB SINAD<\/li>\n<li>Squelch sensitivity: Less than 0.22\u03bcV<\/li>\n<li>Adj. Ch. selectivity: More than 70dB<\/li>\n<li>Spurious response: More than 70dB<\/li>\n<li>Intermodulation: More than 70dB<\/li>\n<li>Hum and noise: More than 40dB<\/li>\n<li>Audio output power: 4.5W typical at 10% distortion<br \/>\nwith a 4\u03a9 load<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Icom M304 VHF Marine Radio IC-M304. The Icom M304 VHF Marine radio proudly follows in the tradition of the M302, continuing to offer quality, durability and ease of use. This radio features 25 watts of output in an attractive, water-resistant package. You get High or Low power output (25 watt or 1 watt).<\/p>\n<div style=\"margin-top: 15px;\"><a class=\"et-banner-link button et_btn solid color-accent\" href=\"https:\/\/sfwalkietalkie.com\/wp-content\/uploads\/2023\/08\/IC-M304_brochure-1.pdf\" target=\"_blank\" rel=\"noopener\">Product Brochure<\/a><\/div>\n","protected":false},"featured_media":2372,"template":"","meta":[],"product_brand":[],"product_cat":[82,86,70],"product_tag":[],"class_list":["post-2371","product","type-product","status-publish","has-post-thumbnail","product_cat-icom-mobile-radio","product_cat-marine","product_cat-mobile-radio","first","instock","shipping-taxable","product-type-external"],"_links":{"self":[{"href":"https:\/\/smartfreq2u.com\/index.php\/wp-json\/wp\/v2\/product\/2371","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/smartfreq2u.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/smartfreq2u.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/smartfreq2u.com\/index.php\/wp-json\/wp\/v2\/media\/2372"}],"wp:attachment":[{"href":"https:\/\/smartfreq2u.com\/index.php\/wp-json\/wp\/v2\/media?parent=2371"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/smartfreq2u.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=2371"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/smartfreq2u.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=2371"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/smartfreq2u.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=2371"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}