{"product_id":"tag-375-noise-figure-meter","title":"Hewlett-Packard HP 342A Noise Figure Meter – Tuned for 28 MHz Operation","description":"\u003cp\u003eVintage Hewlett-Packard Model 342A Noise Figure Meter, made in the USA. This classic RF test instrument measures noise figure in dB using selectable gas tube or diode noise sources, with a front-panel analog meter displaying both Noise Figure (dB) and Current (mA).\u003c\/p\u003e\n\u003cp\u003eFeatures include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeter Function selector: Calibration Zero\/INF, Noise Figure, Current (4mA \/ 2mA)\u003c\/li\u003e\n\u003cli\u003eNoise Source selector: Gas Tube, Off, Diode\u003c\/li\u003e\n\u003cli\u003eIndividual Gas Tube and Diode current controls\u003c\/li\u003e\n\u003cli\u003eInput (MC) frequency selector\u003c\/li\u003e\n\u003cli\u003eHewlett-Packard analog meter movement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis unit has been specifically tuned for 28 MHz operation, making it well-suited for amateur radio (10-meter band) amplifier noise figure testing. Sold as-is in used\/vintage, untested condition. A rare find for the RF engineer, ham radio operator, or vintage test equipment collector.\u003c\/p\u003e","brand":"Hewlett-Packard","offers":[{"title":"Default Title","offer_id":49755740438666,"sku":"B01685-719-HEW","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/7835\/8410\/files\/2d828f5b-8c8d-403e-bd81-777b9da2210b.jpg?v=1784426485","url":"https:\/\/geosolglobal.myshopify.com\/products\/tag-375-noise-figure-meter","provider":"Geosol Global LLC","version":"1.0","type":"link"}