{"product_id":"chelegance-rf-explorer-4g-spectrum-analyzer","title":"RF Explorer 4G COMBO+ Handheld Spectrum Analyzer 50kHz-4GHz, LNA, USB, All HAM Bands","description":"\u003cp\u003eThe \u003cstrong\u003eRF Explorer 4G COMBO+\u003c\/strong\u003e is a compact, pocket-sized handheld spectrum analyzer offering continuous frequency coverage from \u003cstrong\u003e50 kHz to 4 GHz\u003c\/strong\u003e (expandable to 5.1 GHz via firmware), covering LF, MF, HF, VHF, and UHF — including all amateur radio HAM bands. Built into a robust metallic enclosure with a varnished finish, it features an internal LNA amplifier and selectable attenuator for excellent signal detection across a wide dynamic range, making it equally capable for indoor bench use and outdoor field measurements. Multiple spectrum analyser modes (Peak Max \u0026amp; Hold, Normal, Overwrite, Averaging) provide versatile signal analysis, while PRESET configuration and dedicated HELP\/SET buttons ensure fast, intuitive operation. A high-capacity internal lithium battery delivers 10+ hours of runtime with USB recharging. Multi-platform software (Windows, Linux, macOS) and an Open Source API enable remote control, data logging, and high-resolution graphical display. Compatible with the RF Explorer Holder SLIM and Near Field Antenna Kit accessories.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency coverage: 50 kHz–4 GHz (expandable to 5.1 GHz via firmware)\u003c\/li\u003e\n\u003cli\u003eCovers LF \/ MF \/ HF \/ VHF \/ UHF — all HAM bands supported\u003c\/li\u003e\n\u003cli\u003eInternal LNA amplifier for high sensitivity\u003c\/li\u003e\n\u003cli\u003eSelectable attenuator for wide dynamic range\u003c\/li\u003e\n\u003cli\u003eSpectrum analyser modes: Peak Max \u0026amp; Hold, Normal, Overwrite, Averaging\u003c\/li\u003e\n\u003cli\u003ePRESET configuration \u0026amp; HELP\/SET buttons for fast operation\u003c\/li\u003e\n\u003cli\u003e10+ hour battery life (internal lithium, USB rechargeable)\u003c\/li\u003e\n\u003cli\u003eMulti-platform software: Windows, Linux, macOS\u003c\/li\u003e\n\u003cli\u003eOpen Source API for remote control \u0026amp; data logging\u003c\/li\u003e\n\u003cli\u003eRobust metallic enclosure — pocket-sized \u0026amp; lightweight\u003c\/li\u003e\n\u003cli\u003eCompatible with RF Explorer Holder SLIM \u0026amp; Near Field Antenna Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency range: 50 kHz–4 GHz (firmware expandable to 5.1 GHz)\u003c\/li\u003e\n\u003cli\u003eCoverage: LF \/ MF \/ HF \/ VHF \/ UHF\u003c\/li\u003e\n\u003cli\u003eAmplifier: Internal LNA\u003c\/li\u003e\n\u003cli\u003eAttenuator: Selectable\u003c\/li\u003e\n\u003cli\u003eBattery: High-capacity internal lithium, 10h+ runtime\u003c\/li\u003e\n\u003cli\u003eCharging: USB\u003c\/li\u003e\n\u003cli\u003eSoftware: Multi-platform (Windows \/ Linux \/ macOS), Open Source API\u003c\/li\u003e\n\u003cli\u003eEnclosure: Metallic, varnished finish\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHELEGANCE","offers":[{"title":"Default Title","offer_id":57005738951000,"sku":"MOON-17-010","price":259.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/8753\/5192\/files\/screenshot_2026-02-16_150816_1.jpg?v=1774950251","url":"https:\/\/kamsat.co.uk\/products\/chelegance-rf-explorer-4g-spectrum-analyzer","provider":"Kamsat","version":"1.0","type":"link"}