{"product_id":"nanovna-h4-vector-network-analyzer","title":"NanoVNA-H4 Vector Network Analyzer 50 kHz–1.5 GHz with 4-Inch Display","description":"\u003cp\u003e\u003cstrong\u003eA vector network analyzer measures the complete scattering matrix of any two-port RF network — the same S-parameter analysis CERN engineers use on accelerator RF cavities, now in a 100 g handheld.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA VNA works by injecting a swept-frequency signal at port 1 and measuring both the reflected power (S11) and transmitted power (S21) with phase-coherent receivers. From S11 you extract impedance, return loss, and VSWR — essential for antenna matching. From S21 you get insertion loss, group delay, and filter response. The NanoVNA-H4 implements this using a Si5351 clock generator for RF synthesis and two AD8302 gain\/phase detectors for magnitude-and-phase measurement — 100,000× cheaper than a Keysight lab VNA at 1% of the measurement capability loss.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency range: 50 kHz–1.5 GHz; 4-inch 480×320 IPS touchscreen display\u003c\/li\u003e\n\u003cli\u003eMeasures: S11, S21, Smith chart, polar, log magnitude, phase, group delay\u003c\/li\u003e\n\u003cli\u003e50 Ω SMA ports; 101-point sweep; USB-C rechargeable 950 mAh battery\u003c\/li\u003e\n\u003cli\u003eIncludes: calibration kit (OSL), two SMA cables, carrying case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eEvery purchase directly funds independent physics research at the Golden Physics Project.\u003c\/em\u003e\u003c\/p\u003e","brand":"Golden Physics Project","offers":[{"title":"Default Title","offer_id":54144349995300,"sku":"GPP-ELEC-NANOVNAH4","price":159.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/2879\/9524\/files\/Anritsu_MS2035B_portable_vector_network_analyzer.jpg?v=1781220428","url":"https:\/\/shop.goldenphysics.org\/products\/nanovna-h4-vector-network-analyzer","provider":"Golden Physics Project","version":"1.0","type":"link"}