{"id":2480,"date":"2021-05-22T14:40:40","date_gmt":"2021-05-22T04:40:40","guid":{"rendered":"https:\/\/amateurradiosupplies.com.au\/?post_type=product&#038;p=2480"},"modified":"2026-02-16T19:22:21","modified_gmt":"2026-02-16T08:22:21","slug":"rm-italy-kl-703-high-power-linear-amplifier-500w","status":"publish","type":"product","link":"https:\/\/amateurradiosupplies.com.au\/index.php\/product\/rm-italy-kl-703-high-power-linear-amplifier-500w\/","title":{"rendered":"RM Italy KL-703 High Power Linear Amplifier 500W"},"content":{"rendered":"<p>KL-703: Is a new 500W Linear Amplifier for operation between 25 and 30 MHz, (developed for the 10m amateur radio band). It may be used for all narrow band modulation types, (SSB,CW,AM,FM and data modes). It is particularly suitable for mobile operation as it requires a 13.8Vdc supply voltage. The KL-703 requires about 30W for maximum output power.  Harmonic output is better than -55dBc. The KL703 also features an RX pre-amplifier that may be used to increases readability of weak signals..<\/p>\n<p>Specifications:<br \/>\nOperation Frequency: 25\u201430 MHz (10m Amateur HF Band)<br \/>\nModulation Types: SSB,CW,AM, FM, data etc (All narrowband modes)<br \/>\nTransistor: 16 x RM 3 MOSFET<br \/>\nMax I\/P Current: 50A<br \/>\nPower Supply: 13.8VDC \/- 1V 60A<br \/>\nInput Fuse (Internal): 4 x 15A (Auto Fuse)<br \/>\nInput RF Power: 1-35W max (All modes)<br \/>\nOutput RF Power: 500W max<br \/>\nMaximum bypass power (Amplifier off): 50W max<br \/>\nPreamplifier + 25dB<br \/>\nInput VSWR: 1.1\u20141.5:1<br \/>\nOutput VSWR Maximum: 2.5:1<br \/>\nHarmonic Output: &gt;-50dBc 25-30MHz.<br \/>\nSize: 240 x 90 x 450 mm<br \/>\nIntegrated cooling system (2 x fans)<br \/>\nWeight: 4.2 Kg<br \/>\nRTX SO-239: RF input connector<br \/>\nDC Input power connector: (Polarity is marked on the supplied mating connector)<br \/>\nAntenna RF Output: SO-239 Socket to Antenna <\/p>\n","protected":false},"excerpt":{"rendered":"<p>KL-703: Is a new 500W Linear Amplifier for operation between 25 and 30 MHz, (developed for the 10m amateur radio [&hellip;]<\/p>\n","protected":false},"featured_media":15348,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[35],"product_tag":[],"class_list":{"0":"post-2480","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-amplifiers","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\/2480","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=2480"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/media\/15348"}],"wp:attachment":[{"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/media?parent=2480"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/product_brand?post=2480"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/product_cat?post=2480"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/product_tag?post=2480"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}