{"id":186571,"date":"2025-07-21T13:29:52","date_gmt":"2025-07-21T06:29:52","guid":{"rendered":"https:\/\/techmaster.com.vn\/?post_type=product&#038;p=186571"},"modified":"2026-09-28T12:13:47","modified_gmt":"2026-09-28T05:13:47","slug":"keysight-n9961a-fieldfox-handheld-microwave-spectrum-analyzer","status":"publish","type":"product","link":"https:\/\/techmaster.com.vn\/en\/keysight-n9961a-fieldfox-handheld-microwave-spectrum-analyzer\/","title":{"rendered":"Keysight N9961A FieldFox Handheld Microwave Spectrum Analyzer"},"content":{"rendered":"<style>.kx{font-family:'Roboto',system-ui,sans-serif;color:#2a2f36;line-height:1.65;font-size:16px;max-width:1080px;margin:0 auto} .kx *{box-sizing:border-box} .kx h2,.kx h3{font-family:'Be Vietnam Pro',system-ui,sans-serif;color:#123E78;font-weight:800;line-height:1.2;margin:0} .kx h2{font-size:clamp(22px,2.6vw,30px);margin:0 0 14px}.kx h3{font-size:20px;margin:0 0 12px} .kx p{margin:0 0 14px}.kx p strong{color:#123E78}.kx 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summary::after{content:\"\u2013\"} .kx .faq .a{padding:0 0 18px;color:#5b6b80;font-size:15px}.kx .faq .a strong{color:#123E78} .kx .cta{background:linear-gradient(120deg,#0E3470,#1B55A6);color:#fff;border-radius:18px;padding:34px 30px;text-align:center}.kx .cta h3{color:#fff;font-size:22px;margin-bottom:8px}.kx .cta p{color:rgba(255,255,255,.85);margin-bottom:18px} .kx .cta a{display:inline-block;font-family:'Be Vietnam Pro',sans-serif;font-weight:700;border-radius:999px;padding:12px 26px;margin:4px}.kx .cta .b1{background:#C70032;color:#fff}.kx .cta .b2{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.6)}.kx .ngrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:4px 0 6px}.kx .ncard{position:relative;display:block;height:152px;border-radius:12px;overflow:hidden;background-size:cover;background-position:center;text-decoration:none;box-shadow:0 2px 10px rgba(14,52,112,.10);transition:transform .25s,box-shadow .25s}.kx .ncard:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(14,52,112,.22)}.kx .ncard .nov{position:absolute;left:0;right:0;top:0;bottom:0;background:linear-gradient(180deg,rgba(9,26,62,0) 0%,rgba(9,26,62,.28) 38%,rgba(9,26,62,.72) 70%,rgba(9,26,62,.90) 100%)}.kx .ncard .nlb{position:absolute;left:14px;right:14px;bottom:11px;height:2.6em;display:block;overflow:hidden;color:#fff;font-family:'Be Vietnam Pro',system-ui,sans-serif;font-weight:700;font-size:15.5px;line-height:1.3;text-shadow:0 1px 6px rgba(0,0,0,.55)}.kx .ncard .nar{position:absolute;right:12px;top:10px;color:#fff;font-size:15px;opacity:.85}@media(max-width:900px){.kx .ngrid{grid-template-columns:1fr 1fr}}@media(max-width:560px){.kx .ngrid{grid-template-columns:1fr}.kx .ncard{height:136px}}.kx .cta .b1 .ic{display:inline-block;filter:brightness(0) invert(1)}<\/style>\n<h3 data-start=\"2118\" data-end=\"2192\">Keysight N9961A FieldFox Handheld Microwave Spectrum Analyzer \u2013 44 GHz<\/h3>\n<figure id=\"attachment_186597\" aria-describedby=\"caption-attachment-186597\" style=\"width: 711px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2025\/07\/Keysight-N9961A.png\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-186597\" src=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2025\/07\/Keysight-N9961A.png\" alt=\"Keysight N9961A\" width=\"711\" height=\"400\" \/><\/a><figcaption id=\"caption-attachment-186597\" class=\"wp-caption-text\">Keysight N9961A<\/figcaption><\/figure>\n<p data-start=\"2256\" data-end=\"2716\">The Keysight N9961A FieldFox Handheld Microwave Spectrum Analyzer is designed to deliver precise RF measurements up to 44 GHz in the toughest field conditions. Its multifunctional design integrates spectrum analysis, interference detection, real-time signal capture, radar pulse characterization, power measurements, and GPS geolocation into a lightweight 3.2 kg form factor. Ideal for professionals working on-site with 5G, LTE, and radar systems.<\/p>\n<h3 data-start=\"2718\" data-end=\"2735\">Key Features:<\/h3>\n<ul data-start=\"2736\" data-end=\"3241\">\n<li data-start=\"2736\" data-end=\"2819\">\n<p data-start=\"2738\" data-end=\"2819\">Wide frequency range up to 44 GHz with \u00b10.5 dB accuracy and no warm-up required<\/p>\n<\/li>\n<li data-start=\"2820\" data-end=\"2894\">\n<p data-start=\"2822\" data-end=\"2894\">10 MHz gap-free real-time bandwidth for capturing intermittent signals<\/p>\n<\/li>\n<li data-start=\"2895\" data-end=\"2963\">\n<p data-start=\"2897\" data-end=\"2963\">Portable radar pulse analysis and 5G TF\/LTE over-the-air testing<\/p>\n<\/li>\n<li data-start=\"2964\" data-end=\"3013\">\n<p data-start=\"2966\" data-end=\"3013\">I\/Q data capture for in-depth signal analysis<\/p>\n<\/li>\n<li data-start=\"3014\" data-end=\"3071\">\n<p data-start=\"3016\" data-end=\"3071\">Integrated GPS\/GNSS for geolocation and time stamping<\/p>\n<\/li>\n<li data-start=\"3072\" data-end=\"3176\">\n<p data-start=\"3074\" data-end=\"3176\">Expandable with software options: tracking generator, preamplifier, power meter, and vector analyzer<\/p>\n<\/li>\n<li data-start=\"3177\" data-end=\"3241\">\n<p data-start=\"3179\" data-end=\"3241\">Ultra-rugged, field-ready design weighing only 3.2 kg (7.1 lb)<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"3243\" data-end=\"3263\">What\u2019s Included:<\/h3>\n<ul data-start=\"3264\" data-end=\"3427\">\n<li data-start=\"3264\" data-end=\"3287\">\n<p data-start=\"3266\" data-end=\"3287\">AC\/DC power adapter<\/p>\n<\/li>\n<li data-start=\"3288\" data-end=\"3312\">\n<p data-start=\"3290\" data-end=\"3312\">Localized power cord<\/p>\n<\/li>\n<li data-start=\"3313\" data-end=\"3344\">\n<p data-start=\"3315\" data-end=\"3344\">Rechargeable Li-ion battery<\/p>\n<\/li>\n<li data-start=\"3345\" data-end=\"3401\">\n<p data-start=\"3347\" data-end=\"3401\">Soft carrying case with backpack and shoulder straps<\/p>\n<\/li>\n<li data-start=\"3402\" data-end=\"3427\">\n<p data-start=\"3404\" data-end=\"3427\">Quick Reference Guide<\/p>\n<\/li>\n<\/ul>\n<div class=\"tm-en-blocks\"><\/div>\n<div class=\"kx\">\n<div class=\"block\">\n<div class=\"eyebrow\">Applications<\/div>\n<h2 id=\"apps-n9961a\">What is the Keysight N9961A used for?<\/h2>\n<div class=\"cards c3\">\n<div class=\"card\">\n<div class=\"i\">\ud83c\udf92<\/div>\n<h3>Handheld RF field testing<\/h3>\n<\/div>\n<div class=\"card\">\n<div class=\"i\">\ud83d\udce1<\/div>\n<h3>Base station and antenna maintenance<\/h3>\n<\/div>\n<div class=\"card\">\n<div class=\"i\">\u26a1<\/div>\n<h3>Fast multi-function measurement<\/h3>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"kx\">\n<div class=\"block faq\">\n<div class=\"eyebrow\">Frequently asked questions<\/div>\n<h2 id=\"faq-n9961a\">Keysight N9961A \u2014 frequently asked questions<\/h2>\n<details>\n<summary>Where can I buy a genuine Keysight N9961A in Vietnam?<\/summary>\n<div class=\"a\">Techmaster Electronics is an authorised Keysight Technologies distributor in Vietnam. We supply the Keysight N9961A FieldFox Handheld Microwave Spectrum Analyzer as 100% genuine equipment with CO\/CQ documents, engineering advice and full lifecycle support. Call +84 908 173 345 for a quote.<\/div>\n<\/details>\n<details>\n<summary>How much does the Keysight N9961A cost?<\/summary>\n<div class=\"a\">The N9961A is configured to order, so options and accessories change the price and Techmaster quotes each requirement individually. Send your requirement at https:\/\/techmaster.com.vn\/en\/contact\/ or call +84 908 173 345 for a same-day quote.<\/div>\n<\/details>\n<details>\n<summary>Is the Keysight N9961A covered by warranty and calibration?<\/summary>\n<div class=\"a\">Yes. The Keysight N9961A FieldFox Handheld Microwave Spectrum Analyzer carries the Keysight manufacturer warranty, and Techmaster provides ISO\/IEC 17025 calibration, repair and scheduled maintenance in Vietnam.<\/div>\n<\/details>\n<\/div>\n<div class=\"cta\">\n<h3>Request a quote for the Keysight N9961A FieldFox Handheld Microwave Spectrum Analyzer<\/h3>\n<p>Techmaster engineers advise on the configuration and quote the same day.<\/p>\n<p><a class=\"b1\" href=\"tel:0908173345\">\ud83d\udcde +84 908 173 345<\/a><a class=\"b2\" href=\"https:\/\/techmaster.com.vn\/en\/contact\/\">Request a quote<\/a><\/p>\n<\/div>\n<\/div>\n<p><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"@id\": \"https:\/\/techmaster.com.vn\/en\/keysight-n9961a-fieldfox-handheld-microwave-spectrum-analyzer\/#faq\", \"inLanguage\": \"en-US\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Where can I buy a genuine Keysight N9961A in Vietnam?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Techmaster Electronics is an authorised Keysight Technologies distributor in Vietnam. We supply the Keysight N9961A FieldFox Handheld Microwave Spectrum Analyzer as 100% genuine equipment with CO\/CQ documents, engineering advice and full lifecycle support. Call +84 908 173 345 for a quote.\"}}, {\"@type\": \"Question\", \"name\": \"How much does the Keysight N9961A cost?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The N9961A is configured to order, so options and accessories change the price and Techmaster quotes each requirement individually. Send your requirement at https:\/\/techmaster.com.vn\/en\/contact\/ or call +84 908 173 345 for a same-day quote.\"}}, {\"@type\": \"Question\", \"name\": \"Is the Keysight N9961A covered by warranty and calibration?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The Keysight N9961A FieldFox Handheld Microwave Spectrum Analyzer carries the Keysight manufacturer warranty, and Techmaster provides ISO\/IEC 17025 calibration, repair and scheduled maintenance in Vietnam.\"}}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<h4>Highlight:<\/h4>\n<ul>\n<li data-start=\"2736\" data-end=\"2819\">\n<p data-start=\"2738\" data-end=\"2819\">Wide frequency range up to 44 GHz with \u00b10.5 dB accuracy and no warm-up required<\/p>\n<\/li>\n<li data-start=\"2820\" data-end=\"2894\">\n<p data-start=\"2822\" data-end=\"2894\">10 MHz gap-free real-time bandwidth for capturing intermittent signals<\/p>\n<\/li>\n<li data-start=\"2895\" data-end=\"2963\">\n<p data-start=\"2897\" data-end=\"2963\">Portable radar pulse analysis and 5G TF\/LTE over-the-air testing<\/p>\n<\/li>\n<li data-start=\"2964\" data-end=\"3013\">\n<p data-start=\"2966\" data-end=\"3013\">I\/Q data capture for in-depth signal analysis<\/p>\n<\/li>\n<li data-start=\"3014\" data-end=\"3071\">\n<p data-start=\"3016\" data-end=\"3071\">Integrated GPS\/GNSS for geolocation and time stamping<\/p>\n<\/li>\n<li data-start=\"3072\" data-end=\"3176\">\n<p data-start=\"3074\" data-end=\"3176\">Expandable with software options: tracking generator, preamplifier, power meter, and vector analyzer<\/p>\n<\/li>\n<li data-start=\"3177\" data-end=\"3241\">\n<p data-start=\"3179\" data-end=\"3241\">Ultra-rugged, field-ready design weighing only 3.2 kg (7.1 lb)<\/p>\n<\/li>\n<\/ul>\n<a href=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2025\/07\/FieldFox-A-Series-Handheld-Analyzers-4_6.5_9_14_18_26.5_32_44_50-GHz.pdf\" class=\"button alert is-alert is-medium\"  >\n    <span>Key Specifications<\/span>\n  <\/a>\n\n","protected":false},"featured_media":186597,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[982],"product_tag":[],"class_list":{"0":"post-186571","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-fieldfox-handheld-analyzers","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v26.8) - 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