{"product_id":"rm-italy-kl703-linear-amplifier","title":"RM Italy KL703 500W Linear Amplifier with Receive Preamp","description":"\u003cp\u003eThe RM Italy KL703 is a 500W maximum-output linear amplifier with a\nthree-position LOW\/MID\/HI power control and a switchable receive\npreamplifier. It accepts 1–35W input across its supported modes. Two\nheatsink-mounted fans provide active cooling.\u003c\/p\u003e\n\u003ch2 id=\"key-features\"\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum output:\u003c\/strong\u003e Manufacturer-rated 500W.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput range:\u003c\/strong\u003e 1–35W across supported AM, FM, SSB and\nCW modes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput control:\u003c\/strong\u003e Three-position LOW\/MID\/HI\nselector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReceive preamplifier:\u003c\/strong\u003e Switchable from the front\npanel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC supply:\u003c\/strong\u003e 13.8V nominal with a 60A supply\nrating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling:\u003c\/strong\u003e Two heatsink-mounted cooling fans.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize and weight:\u003c\/strong\u003e Approximately 16.54 inches long ×\n9.45 inches wide × 3.54 inches high; approximately 9.37 lb.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 id=\"specifications\"\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eManufacturer rating\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eRM Italy KL703\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency range\u003c\/td\u003e\n\u003ctd\u003e25–30 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModes\u003c\/td\u003e\n\u003ctd\u003eAM, FM, SSB and CW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum output\u003c\/td\u003e\n\u003ctd\u003e500W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput power\u003c\/td\u003e\n\u003ctd\u003e1–35W, all modes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply voltage\u003c\/td\u003e\n\u003ctd\u003e13.8V DC ±1V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower-supply rating\u003c\/td\u003e\n\u003ctd\u003e60A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum current draw\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput control\u003c\/td\u003e\n\u003ctd\u003eThree-position LOW\/MID\/HI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReceive preamplifier\u003c\/td\u003e\n\u003ctd\u003eSwitchable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput VSWR\u003c\/td\u003e\n\u003ctd\u003e1.1–1.5:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuses\u003c\/td\u003e\n\u003ctd\u003eFour 15A automotive fuses\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eApproximately 16.54 inches long × 9.45 inches wide × 3.54 inches\nhigh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit weight\u003c\/td\u003e\n\u003ctd\u003eApproximately 9.37 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 id=\"setup-requirements\"\u003eSetup requirements\u003c\/h2\u003e\n\u003cp\u003eCheck the driving radio's RF output before switching on the\namplifier. Never exceed the 35W input limit, and do not use the\namplifier's output selector as a substitute for reducing excessive drive\nat the radio.\u003c\/p\u003e\n\u003cp\u003eUse a suitable DC supply and correctly rated wiring. Allow clear\nairflow around the heatsink and both cooling fans, and connect a\nproperly matched antenna system or suitable dummy load before\ntransmitting. The antenna, coax and test equipment must be suitable for\nthe operating power and frequency.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer specifies a maximum bypass power of 50W with the\namplifier switched off. Avoid prolonged high-duty-cycle transmission and\nallow the heatsink to cool as needed.\u003c\/p\u003e\n\u003ch2 id=\"us-operating-restriction\"\u003eUS operating restriction\u003c\/h2\u003e\n\u003cp\u003eExternal RF power amplifiers must not be used to increase the\ntransmitting power of a US CB Radio Service station. This amplifier is\nnot a legal CB power upgrade. Observe all applicable\nequipment-authorization and operating requirements.\u003c\/p\u003e\n\u003ch2 id=\"frequently-asked-questions\"\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3 id=\"is-the-kl703-a-radio\"\u003eIs the KL703 a radio?\u003c\/h3\u003e\n\u003cp\u003eNo. The KL703 is an external linear RF amplifier that works with a\nseparate transceiver. It is not a standalone radio.\u003c\/p\u003e\n\u003ch3 id=\"how-much-input-power-can-the-kl703-accept\"\u003eHow much input power\ncan the KL703 accept?\u003c\/h3\u003e\n\u003cp\u003eRM Italy specifies 1–35W input in all supported modes. Do not exceed\n35W. Reduce the driving radio's output rather than relying on the\namplifier's power selector to make excessive input safe.\u003c\/p\u003e\n\u003ch3 id=\"what-output-power-does-rm-italy-specify\"\u003eWhat output power does\nRM Italy specify?\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer specifies 500W maximum output. This is the\namplifier's maximum rating, not its required operating level.\u003c\/p\u003e\n\u003ch3 id=\"what-power-supply-is-required\"\u003eWhat power supply is\nrequired?\u003c\/h3\u003e\n\u003cp\u003eUse a 13.8V DC supply rated for at least 60A. RM Italy lists maximum\namplifier current draw of 50A; supply capacity and maximum amplifier\ndraw are separate specifications.\u003c\/p\u003e\n\u003ch3 id=\"does-it-have-adjustable-output-power\"\u003eDoes it have adjustable\noutput power?\u003c\/h3\u003e\n\u003cp\u003eYes. The KL703 has a three-position LOW\/MID\/HI output selector on the\nfront panel.\u003c\/p\u003e\n\u003ch3 id=\"does-it-have-a-receive-preamplifier\"\u003eDoes it have a receive\npreamplifier?\u003c\/h3\u003e\n\u003cp\u003eYes. A front-panel control switches the receive preamplifier on or\noff.\u003c\/p\u003e\n\u003ch3 id=\"how-large-is-the-kl703\"\u003eHow large is the KL703?\u003c\/h3\u003e\n\u003cp\u003eConverted from the manufacturer's specifications, the unit is\napproximately 16.54 inches long × 9.45 inches wide × 3.54 inches high\nand weighs approximately 9.37 lb.\u003c\/p\u003e\n\u003ch3 id=\"can-i-use-it-to-increase-cb-transmitting-power-in-the-united-states\"\u003eCan\nI use it to increase CB transmitting power in the United States?\u003c\/h3\u003e\n\u003cp\u003eNo. US CB Radio Service rules prohibit using an external RF power\namplifier to increase a CB station’s transmitting power.\u003c\/p\u003e\n\u003cp id=\"rm-italy-operating-notice\" style=\"color: #c00000;\"\u003e*These units are for industrial, scientific, medical, or export use only. It is a violation of US FCC regulations to operate these units on the Citizens Band or Amateur Radio Services in the United States. Please check regulations in your country before operating these unit.\u003c\/p\u003e","brand":"RM Italy","offers":[{"title":"Default Title","offer_id":67935292850493,"sku":"KL703","price":509.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/0674\/1262\/files\/rm-italy-kl703-500w-linear-amplifier-with-receive-preamp-2386332.png?v=1793960534","url":"https:\/\/cbradiosupply.com\/products\/rm-italy-kl703-linear-amplifier","provider":"CB Radio Supply","version":"1.0","type":"link"}