{"product_id":"mfj-812b-vhf-swr-wattmeter","title":"MFJ 812B VHF 144-220MHz SWR\/Wattmeter (Pre-Owned)","description":"\u003cp data-start=\"0\" data-end=\"190\"\u003eThe \u003cstrong data-start=\"4\" data-end=\"34\"\u003eMFJ-812B VHF SWR\/Wattmeter\u003c\/strong\u003e is a compact, reliable test instrument designed for amateur radio operators working in the VHF range. Here’s a clear product-style description you can use:\u003c\/p\u003e\n\u003chr data-start=\"192\" data-end=\"195\"\u003e\n\u003cp data-start=\"197\" data-end=\"239\"\u003e\u003cstrong data-start=\"197\" data-end=\"239\"\u003eMFJ-812B VHF 144–220 MHz SWR\/Wattmeter\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"241\" data-end=\"494\"\u003eThe MFJ-812B is a precision VHF SWR and power meter designed for accurate measurement of forward and reflected power in the 144–220 MHz range. Ideal for amateur radio operators, it helps ensure optimal antenna performance and safe transmitter operation.\u003c\/p\u003e\n\u003cp data-start=\"496\" data-end=\"731\"\u003eThis meter features a cross-needle design, allowing simultaneous readings of SWR and power without the need for calibration adjustments. With power ranges of 30W and 300W, it accommodates both low-power and high-power VHF applications.\u003c\/p\u003e\n\u003cp data-start=\"733\" data-end=\"916\"\u003eBuilt with a durable, compact enclosure, the MFJ-812B is suitable for both base station and portable use. Standard SO-239 connectors provide easy integration into most coaxial setups.\u003c\/p\u003e\n\u003cp data-start=\"918\" data-end=\"935\"\u003e\u003cstrong data-start=\"918\" data-end=\"935\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"936\" data-end=\"1210\"\u003e\n\u003cli data-section-id=\"xap7r1\" data-start=\"936\" data-end=\"972\"\u003eFrequency range: 144–220 MHz (VHF)\u003c\/li\u003e\n\u003cli data-section-id=\"18h63m8\" data-start=\"973\" data-end=\"1028\"\u003eCross-needle meter for instant SWR and power readings\u003c\/li\u003e\n\u003cli data-section-id=\"rukz32\" data-start=\"1029\" data-end=\"1055\"\u003ePower ranges: 30W \/ 300W\u003c\/li\u003e\n\u003cli data-section-id=\"1bjsroi\" data-start=\"1056\" data-end=\"1094\"\u003eMeasures forward and reflected power\u003c\/li\u003e\n\u003cli data-section-id=\"k9q3pi\" data-start=\"1095\" data-end=\"1137\"\u003eNo calibration required for SWR readings\u003c\/li\u003e\n\u003cli data-section-id=\"tm6247\" data-start=\"1138\" data-end=\"1162\"\u003eCompact, rugged design\u003c\/li\u003e\n\u003cli data-section-id=\"i93cyx\" data-start=\"1163\" data-end=\"1210\"\u003eSO-239 connectors for universal compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1212\" data-end=\"1361\"\u003e\u003cstrong data-start=\"1212\" data-end=\"1229\"\u003eApplications:\u003c\/strong\u003e\u003cbr\u003ePerfect for tuning antennas, checking transmission line efficiency, and monitoring transmitter output in VHF amateur radio systems.\u003c\/p\u003e","brand":"MFJ","offers":[{"title":"Default Title","offer_id":59624316698910,"sku":"mfj144-220","price":74.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7171\/1262\/files\/MFJ_VHF_144-220MHz_Swr_Wattmeter.jpg?v=1784168800","url":"https:\/\/platinumhpsolutions.myshopify.com\/fr\/products\/mfj-812b-vhf-swr-wattmeter","provider":"Platinum High Performance Solutions, LLC.","version":"1.0","type":"link"}