{"id":276038,"date":"2026-11-04T09:51:32","date_gmt":"2026-11-04T02:51:32","guid":{"rendered":"https:\/\/techmaster.com.vn\/keysight-infiniivision-xr3-xr3l4a-1u-low-profile-oscilloscope\/"},"modified":"2026-11-04T09:54:01","modified_gmt":"2026-11-04T02:54:01","slug":"keysight-infiniivision-xr3-xr3l4a-1u-low-profile-oscilloscope","status":"publish","type":"product","link":"https:\/\/techmaster.com.vn\/en\/keysight-infiniivision-xr3-xr3l4a-1u-low-profile-oscilloscope\/","title":{"rendered":"Keysight InfiniiVision XR3 XR3L4A 1U Low Profile Oscilloscope"},"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 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.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<style>.kx .dl{display:inline-flex;align-items:center;gap:8px;background:#C70032;color:#fff;font-family:'Be Vietnam Pro',sans-serif;font-weight:700;border-radius:999px;padding:11px 22px;margin:2px 10px 6px 0;box-shadow:0 6px 16px rgba(199,0,50,.22);transition:transform .2s,box-shadow .2s}.kx .dl:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(199,0,50,.30);color:#fff}.kx .dlnote{font-size:13px;color:#5b6b80}<\/style>\n<div class=\"kx\">\n<div class=\"block\">\n<div class=\"eyebrow\">Overview<\/div>\n<h2 id=\"what-is-xr3l4a\">What is the Keysight XR3 XR3L4A?<\/h2>\n<figure class=\"wp-caption aligncenter\" style=\"width: 600px\"><a href=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2026\/11\/keysight-xr3l4a-may-hien-song-1u-mat-truoc-600x600-1.webp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-275995\" src=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2026\/11\/keysight-xr3l4a-may-hien-song-1u-mat-truoc-600x600-1.webp\" alt=\"Keysight InfiniiVision XR3 XR3L4A 1U oscilloscope \u2013 front panel, 4 analog channels\" width=\"600\" height=\"600\" \/><\/a><figcaption class=\"wp-caption-text\">Keysight InfiniiVision XR3 XR3L4A 1U oscilloscope \u2013 front panel, 4 analog channels<\/figcaption><\/figure>\n<p class=\"lead\"><strong>The Keysight InfiniiVision XR3 (model XR3L4A)<\/strong> is a 1U rack-mountable low-profile oscilloscope with 4 analog and 16 digital channels, a 14-bit ADC, a noise floor under 50 \u00b5Vrms and an update rate of more than 1.3 million waveforms per second. Multiple XR3 units synchronize into one system of more than 100 channels sharing a single timebase.<\/p>\n<p><a class=\"dl\" href=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2026\/11\/Keysight-InfiniiVision-XR3-Low-Profile-Oscilloscope-datasheet-3126-1847EN.pdf\" target=\"_blank\" rel=\"noopener\" download>\u2b07 Download the Keysight XR3 data sheet (PDF)<\/a><span class=\"dlnote\">PDF, 25 pages, 1.9 MB, English<\/span><\/p>\n<p>Keysight introduced the XR3 on 3 November 2026 for rack-based automated test systems where engineers need more channels in less rack space. It brings the signal integrity of a full-size bench oscilloscope into 1U, helping aerospace and defense, manufacturing and high-energy physics teams move from bench-level confidence to rack-based scale.<\/p>\n<p>The XR3 belongs to Keysight&#8217;s Essential XR3 class together with the HD3 series, such as the <a href=\"https:\/\/techmaster.com.vn\/en\/hd304mso-keysight-oscilloscope\/\">Keysight HD304MSO oscilloscope<\/a>.<\/p>\n<h3>14-bit ADC and digital trigger on the MegaZoom 5 ASIC<\/h3>\n<p>A custom 14-bit ADC and a low-noise front end deliver a noise floor under 50 \u00b5Vrms at full bandwidth, a noise density under \u2212161 dBm\/Hz. The fully digital trigger works on acquired data, so it is jitter-free and sensitive down to a single LSB. The real-time zone trigger runs directly on the acquisition path and qualifies signals at 6.4 billion tests per second, so intermittent events that cross a drawn zone are always captured. Real-time zoom, floating magnify and color grading run in the ASIC without reducing the update rate.<\/p>\n<h3>More than an oscilloscope<\/h3>\n<p>The same 1U box adds a 16-channel logic analyzer, a protocol analyzer, five counter\/totalizers with 12-digit resolution, four 4.5-digit DVMs and a frequency response analyzer with Bode sweeps up to 10 decades. A 100 MHz 14-bit arbitrary waveform generator is available as an option. Fault Hunter evaluates signals against user-defined criteria for anything from a few minutes to two days.<\/p>\n<\/div>\n<div class=\"block\">\n<div class=\"eyebrow\">Multi-scope systems<\/div>\n<h2 id=\"xr3-synchronization\">Scale XR3 to more than 100 channels<\/h2>\n<figure class=\"wp-caption aligncenter\" style=\"width: 1031px\"><a href=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2026\/11\/keysight-xr3-stack-4-may-rack.webp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-276025\" src=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2026\/11\/keysight-xr3-stack-4-may-rack.webp\" alt=\"Four Keysight XR3 1U oscilloscopes stacked in a rack\" width=\"1031\" height=\"614\" \/><\/a><figcaption class=\"wp-caption-text\">Four XR3 units stacked and synchronized into a 16-channel system<\/figcaption><\/figure>\n<p>Through the autosensing 10 MHz reference in\/out, every XR3 shares a common clock and trigger, so all channels use the same timebase. Three hardware automations handle multi-instrument setup:<\/p>\n<ul>\n<li><strong>Auto-discover:<\/strong> each scope reports its own IP address, so the system finds and configures instruments without manual network setup.<\/li>\n<li><strong>Auto-sync:<\/strong> the 10 MHz reference clocks align across all instruments, locking clock and trigger to one timebase.<\/li>\n<li><strong>Auto-deskew:<\/strong> the MegaZoom 5 ASIC delay lines calibrate automatically to correct skew across the system.<\/li>\n<\/ul>\n<p>Each unit runs the native InfiniiVision interface with protocol decode, power-supply testing and jitter analysis on the instrument, plus embedded VNC and web servers. To view many units on one screen, Infiniium 2026 software (a free download for Windows PCs) shows signals from multiple XR3 instruments in one UI and adds real-time and offline analysis.<\/p>\n<\/div>\n<div class=\"block\">\n<div class=\"eyebrow\">Specifications<\/div>\n<h2 id=\"xr3l4a-specifications\">Keysight XR3L4A specifications<\/h2>\n<table>\n<caption>Key specifications<\/caption>\n<tbody>\n<tr>\n<th>Model<\/th>\n<td>XR3L4A \u2014 InfiniiVision XR3 Low Profile Oscilloscope<\/td>\n<\/tr>\n<tr>\n<th>Channels<\/th>\n<td>4 analog + 16 digital (D0\u2013D15)<\/td>\n<\/tr>\n<tr>\n<th>Bandwidth (\u22123 dB)<\/th>\n<td>200 MHz (standard), 350 MHz, 500 MHz, 1 GHz<\/td>\n<\/tr>\n<tr>\n<th>Rise time (10\u201390%)<\/th>\n<td>\u2264 2.0 ns \/ \u2264 1.3 ns \/ \u2264 900 ps \/ \u2264 450 ps by bandwidth<\/td>\n<\/tr>\n<tr>\n<th>Maximum sample rate<\/th>\n<td>3.2 GSa\/s per channel (all channels); digital channels 1.6 GSa\/s<\/td>\n<\/tr>\n<tr>\n<th>Maximum memory depth<\/th>\n<td>100 Mpts per analog channel; 20 Mpts digital<\/td>\n<\/tr>\n<tr>\n<th>Vertical resolution<\/th>\n<td>14 bits (16 bits in HD mode)<\/td>\n<\/tr>\n<tr>\n<th>Noise floor<\/th>\n<td>Under 50 \u00b5Vrms at full bandwidth; noise density \u2212161.2 dBm\/Hz (\u221238 dBm range)<\/td>\n<\/tr>\n<tr>\n<th>Waveform update rate<\/th>\n<td>Over 1,300,000 waveforms per second<\/td>\n<\/tr>\n<tr>\n<th>Input impedance<\/th>\n<td>50 \u03a9 \u00b1 1.5% or 1 M\u03a9 \u00b1 1% \u2016 ~24 pF<\/td>\n<\/tr>\n<tr>\n<th>Input sensitivity<\/th>\n<td>50 \u03a9: 100 \u00b5V\/div \u2013 1 V\/div; 1 M\u03a9: 100 \u00b5V\/div \u2013 10 V\/div<\/td>\n<\/tr>\n<tr>\n<th>Maximum input voltage<\/th>\n<td>1 M\u03a9: 135 Vrms, 190 Vpk; 50 \u03a9: 5 Vrms, 15 Vpk (not rated for CAT II, III or IV)<\/td>\n<\/tr>\n<tr>\n<th>Dynamic range<\/th>\n<td>SFDR 79 dB; signal-to-noise dynamic range 96 dB<\/td>\n<\/tr>\n<tr>\n<th>Timebase<\/th>\n<td>500 ps\/div \u2013 5,000 s\/div; accuracy \u00b11.6 ppm + aging<\/td>\n<\/tr>\n<tr>\n<th>Segmented memory<\/th>\n<td>Up to 256,000 segments, 700 ns re-arm time<\/td>\n<\/tr>\n<tr>\n<th>Trigger<\/th>\n<td>Real-time zone trigger at over 1,300,000 triggers per second; edge, pulse width, runt, setup &amp; hold, pattern, window\u2026<\/td>\n<\/tr>\n<tr>\n<th>Display<\/th>\n<td>3.2-inch 256 \u00d7 64 OLED status display; external Full HD 1920 \u00d7 1080 display over DisplayPort<\/td>\n<\/tr>\n<tr>\n<th>Multi-scope sync<\/th>\n<td>Autosensing 10 MHz reference in\/out; auto-discover, auto-sync, auto-deskew; more than 100 channels<\/td>\n<\/tr>\n<tr>\n<th>Connectivity<\/th>\n<td>LAN 10\/100\/1000Base-T; 3 \u00d7 USB 3.0 (2 front, 1 rear); 1 \u00d7 USB 2.0 rear (USBTMC); Aux out BNC<\/td>\n<\/tr>\n<tr>\n<th>Built-in tools<\/th>\n<td>5 counters with 12-digit resolution, 4 DVMs with 4.5 digits, frequency response analysis (Bode up to 10 decades), Fault Hunter, mask test, FFT<\/td>\n<\/tr>\n<tr>\n<th>Waveform generator (option)<\/th>\n<td>100 MHz WaveGen, 14-bit AWG \u2014 option XR3LWAVEGEN<\/td>\n<\/tr>\n<tr>\n<th>Internal storage<\/th>\n<td>Up to 10 GB for instrument files; secure erase with option XR3LSECURE<\/td>\n<\/tr>\n<tr>\n<th>Power<\/th>\n<td>100 \u2013 240 V, 50\/60 Hz; 275 W maximum<\/td>\n<\/tr>\n<tr>\n<th>Environment<\/th>\n<td>0 \u2013 50 \u00b0C, up to 3000 m<\/td>\n<\/tr>\n<tr>\n<th>Dimensions (W \u00d7 H \u00d7 D)<\/th>\n<td>42.6 \u00d7 6.1 \u00d7 36.3 cm (1U)<\/td>\n<\/tr>\n<tr>\n<th>Weight<\/th>\n<td>4.2 kg<\/td>\n<\/tr>\n<tr>\n<th>Calibration<\/th>\n<td>3-year calibration interval; 1 year of KeysightCare Assured included<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><a class=\"dl\" href=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2026\/11\/Keysight-InfiniiVision-XR3-Low-Profile-Oscilloscope-datasheet-3126-1847EN.pdf\" target=\"_blank\" rel=\"noopener\" download>\u2b07 Download the Keysight XR3 data sheet (PDF)<\/a><span class=\"dlnote\">PDF, 25 pages, 1.9 MB, English<\/span><\/p>\n<p style=\"font-size:13px;color:#5b6b80\">Source: Keysight data sheet \u201cInfiniiVision XR3 Low Profile Oscilloscope\u201d, 3126-1847.EN, 3 November 2026. Values are typical unless the data sheet marks them as warranted; please check against your order configuration.<\/p>\n<\/div>\n<div class=\"block\">\n<div class=\"eyebrow\">Configuration<\/div>\n<h2 id=\"xr3l4a-configuration\">Choosing bandwidth and options<\/h2>\n<table>\n<caption>Bandwidth at order<\/caption>\n<thead>\n<tr>\n<th>Bandwidth (\u22123 dB)<\/th>\n<th>Rise time (10\u201390%)<\/th>\n<th>Order code<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th>200 MHz (standard)<\/th>\n<td>2.0 ns<\/td>\n<td>XR3L4A-200<\/td>\n<\/tr>\n<tr>\n<th>350 MHz<\/th>\n<td>1.3 ns<\/td>\n<td>XR3L4A-350<\/td>\n<\/tr>\n<tr>\n<th>500 MHz<\/th>\n<td>900 ps<\/td>\n<td>XR3L4A-500<\/td>\n<\/tr>\n<tr>\n<th>1 GHz<\/th>\n<td>450 ps<\/td>\n<td>XR3L4A-01G<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Every unit includes 200 MHz, 100 Mpts and the 16-channel MSO interface. Bandwidth can be upgraded after purchase with licenses XR3LBW-001 to XR3LBW-006. System options are the 100 MHz WaveGen (XR3LWAVEGEN) and enhanced security (XR3LSECURE: disable non-volatile memory, disable USB and LAN ports, block firmware upgrades, password protection). The N3100A rackmount kit is optional.<\/p>\n<table>\n<caption>Software packages (licenses)<\/caption>\n<thead>\n<tr>\n<th>Package<\/th>\n<th>Function<\/th>\n<th>Model<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th>Embedded<\/th>\n<td>I2C, SPI, UART (RS232\/422\/485) trigger &amp; decode<\/td>\n<td>XR3LEMBA<\/td>\n<\/tr>\n<tr>\n<th>Automotive<\/th>\n<td>CAN, CAN FD, CAN XL, SENT, LIN, 10BASE-T1S<\/td>\n<td>XR3LAUTA<\/td>\n<\/tr>\n<tr>\n<th>Aerospace &amp; defense<\/th>\n<td>MIL-STD 1553, ARINC 429<\/td>\n<td>XR3LAERA<\/td>\n<\/tr>\n<tr>\n<th>Power analysis<\/th>\n<td>Power quality, current harmonics, switching loss, transient response, PSRR\u2026<\/td>\n<td>XR3LPWRA<\/td>\n<\/tr>\n<tr>\n<th>USB<\/th>\n<td>USB 2.0 and USB PD trigger, decode and search<\/td>\n<td>XR3LUSBA<\/td>\n<\/tr>\n<tr>\n<th>Quick jitter<\/th>\n<td>Jitter analysis and clock recovery<\/td>\n<td>XR3LQJTA<\/td>\n<\/tr>\n<tr>\n<th>Ethernet<\/th>\n<td>10BASE-T, 100BASE-TX, 10BASE-T1S<\/td>\n<td>XR3LETHA<\/td>\n<\/tr>\n<tr>\n<th>Ultimate bundle<\/th>\n<td>All 7 software packages above<\/td>\n<td>XR3LBDLA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"block\">\n<div class=\"eyebrow\">Pair with XR8<\/div>\n<h2 id=\"xr3-with-xr8\">Using the XR3 with the Keysight XR8<\/h2>\n<figure class=\"wp-caption aligncenter\" style=\"width: 883px\"><a href=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2026\/11\/keysight-xr3-ghep-xr8-them-kenh-hi-z.webp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-276013\" src=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2026\/11\/keysight-xr3-ghep-xr8-them-kenh-hi-z.webp\" alt=\"Keysight XR3 paired with an XR8 oscilloscope to add high-impedance channels\" width=\"883\" height=\"751\" \/><\/a><figcaption class=\"wp-caption-text\">Keysight XR3 paired with an XR8 oscilloscope to add high-impedance channels<\/figcaption><\/figure>\n<p>Pair the XR3 with the <a href=\"https:\/\/techmaster.com.vn\/en\/keysight-infiniium-xr804ka-oscilloscope\/\">Keysight Infiniium XR804KA oscilloscope<\/a> to build one system from two scopes: the XR8 handles high-speed signal integrity measurements and the XR3 adds low-noise high-impedance inputs for low-speed debug and power analysis. Engineers can probe power rails, clocks and control lines on the XR3 while every XR8 channel stays free for high-speed signals. XR3 channels appear next to the XR8 channels in Infiniium 2026, and systems scale to 4, 8 or more channels as needs grow.<\/p>\n<\/div>\n<div class=\"block\">\n<div class=\"eyebrow\">Applications<\/div>\n<h2 id=\"xr3l4a-applications\">What is the XR3L4A used for?<\/h2>\n<div class=\"cards c3\">\n<div class=\"card\">\n<div class=\"i\">\ud83d\uddc4\ufe0f<\/div>\n<h3>Rack-based automated test<\/h3>\n<p>Many synchronized channels in 1U for ATE systems and end-of-line production test stations.<\/p>\n<\/div>\n<div class=\"card\">\n<div class=\"i\">\ud83d\udef0\ufe0f<\/div>\n<h3>Aerospace &amp; defense<\/h3>\n<p>High channel density test systems, with MIL-STD 1553 and ARINC 429 decode in the XR3LAERA package.<\/p>\n<\/div>\n<div class=\"card\">\n<div class=\"i\">\u269b\ufe0f<\/div>\n<h3>High-energy physics<\/h3>\n<p>More than 100 time-correlated channels for experiments that need many simultaneous measurement points.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"block\">\n<div class=\"eyebrow\">Accessories<\/div>\n<h2 id=\"xr3l4a-accessories\">Frequently bought with the XR3L4A<\/h2>\n<p>Keysight recommends passive, active, power rail and current probes for the XR3, for example the N2843A passive probe, N2795A active probe, N7020A power rail probe and the <a href=\"https:\/\/techmaster.com.vn\/en\/keysight-1147b-ac-dc-current-probe\/\">Keysight 1147B AC\/DC current probe<\/a>. The N2756A 16-channel MSO cable and the N3100A rackmount kit complete a rack installation.<\/p>\n<\/div>\n<div class=\"block faq\">\n<div class=\"eyebrow\">FAQ<\/div>\n<h2 id=\"xr3l4a-faq\">Keysight XR3 XR3L4A FAQ<\/h2>\n<details open=\"open\">\n<summary>How do you operate the Keysight XR3 without a large display?<\/summary>\n<div class=\"a\">The XR3 is a faceless 1U design: the front panel carries only a 3.2-inch 256 \u00d7 64 OLED status display showing the instrument name and IP address. It runs the native InfiniiVision interface, drives an external Full HD (1920 \u00d7 1080) display over DisplayPort with touch displays supported, and has embedded VNC and web servers for remote viewing and control from a browser.<\/div>\n<\/details>\n<details open=\"open\">\n<summary>How many XR3 units can be synchronized?<\/summary>\n<div class=\"a\">According to Keysight, multiple XR3 units linked through the 10 MHz reference in\/out form a single system of more than 100 time-correlated channels. Three hardware automations handle the setup: auto-discover (each scope reports its own IP address), auto-sync (clock and trigger locked to one timebase) and auto-deskew (skew corrected across the whole system).<\/div>\n<\/details>\n<details open=\"open\">\n<summary>Can I upgrade the bandwidth of a 200 MHz XR3L4A later?<\/summary>\n<div class=\"a\">Yes. Every XR3L4A ships with 200 MHz, 100 Mpts and the 16-channel MSO interface enabled. Bandwidth is upgraded after purchase with licenses: XR3LBW-001 (200 to 350 MHz), XR3LBW-002 (200 to 500 MHz), XR3LBW-003 (200 MHz to 1 GHz), XR3LBW-004 (350 to 500 MHz), XR3LBW-005 (350 MHz to 1 GHz) and XR3LBW-006 (500 MHz to 1 GHz).<\/div>\n<\/details>\n<details open=\"open\">\n<summary>How does the XR3 work with the XR8 oscilloscope?<\/summary>\n<div class=\"a\">The XR8 handles high-speed signal integrity measurements while the XR3 adds low-noise high-impedance inputs for low-speed debug and power analysis, so no XR8 high-speed channel has to be converted with an adapter. The XR3 supports AutoProbe 1, passive and current probes, and once connected its channels appear next to the XR8 channels in Infiniium 2026.<\/div>\n<\/details>\n<details open=\"open\">\n<summary>Where can I buy a genuine Keysight XR3 in Vietnam?<\/summary>\n<div class=\"a\">Techmaster Electronics is an authorised distributor of Keysight Technologies in Vietnam. We supply the genuine XR3L4A with CO\/CQ, help you choose bandwidth, software options and multi-scope configurations, and provide ISO\/IEC 17025 calibration and technical support. Call 0908 173 345 for a quote.<\/div>\n<\/details>\n<\/div>\n<div class=\"cta\">\n<h3>Get a quote for the Keysight XR3 XR3L4A<\/h3>\n<p>Techmaster engineers advise on bandwidth, multi-scope setups and options, with same-day quotes.<\/p>\n<p><a class=\"b1\" href=\"tel:0908173345\"><span class=\"ic\">\ud83d\udcde<\/span> 0908 173 345<\/a><a class=\"b2\" href=\"https:\/\/techmaster.com.vn\/en\/contact\/\">Request a quote<\/a><a class=\"b2\" href=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2026\/11\/Keysight-InfiniiVision-XR3-Low-Profile-Oscilloscope-datasheet-3126-1847EN.pdf\" target=\"_blank\" rel=\"noopener\" download>\u2b07 Data sheet PDF<\/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-infiniivision-xr3-xr3l4a-1u-low-profile-oscilloscope\/#xr3l4a-faq\", \"inLanguage\": \"en\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How do you operate the Keysight XR3 without a large display?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The XR3 is a faceless 1U design: the front panel carries only a 3.2-inch 256 \u00d7 64 OLED status display showing the instrument name and IP address. It runs the native InfiniiVision interface, drives an external Full HD (1920 \u00d7 1080) display over DisplayPort with touch displays supported, and has embedded VNC and web servers for remote viewing and control from a browser.\"}}, {\"@type\": \"Question\", \"name\": \"How many XR3 units can be synchronized?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"According to Keysight, multiple XR3 units linked through the 10 MHz reference in\/out form a single system of more than 100 time-correlated channels. Three hardware automations handle the setup: auto-discover (each scope reports its own IP address), auto-sync (clock and trigger locked to one timebase) and auto-deskew (skew corrected across the whole system).\"}}, {\"@type\": \"Question\", \"name\": \"Can I upgrade the bandwidth of a 200 MHz XR3L4A later?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Every XR3L4A ships with 200 MHz, 100 Mpts and the 16-channel MSO interface enabled. Bandwidth is upgraded after purchase with licenses: XR3LBW-001 (200 to 350 MHz), XR3LBW-002 (200 to 500 MHz), XR3LBW-003 (200 MHz to 1 GHz), XR3LBW-004 (350 to 500 MHz), XR3LBW-005 (350 MHz to 1 GHz) and XR3LBW-006 (500 MHz to 1 GHz).\"}}, {\"@type\": \"Question\", \"name\": \"How does the XR3 work with the XR8 oscilloscope?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The XR8 handles high-speed signal integrity measurements while the XR3 adds low-noise high-impedance inputs for low-speed debug and power analysis, so no XR8 high-speed channel has to be converted with an adapter. The XR3 supports AutoProbe 1, passive and current probes, and once connected its channels appear next to the XR8 channels in Infiniium 2026.\"}}, {\"@type\": \"Question\", \"name\": \"Where can I buy a genuine Keysight XR3 in Vietnam?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Techmaster Electronics is an authorised distributor of Keysight Technologies in Vietnam. We supply the genuine XR3L4A with CO\/CQ, help you choose bandwidth, software options and multi-scope configurations, and provide ISO\/IEC 17025 calibration and technical support. Call 0908 173 345 for a quote.\"}}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<ul>\n<li><strong>Form factor:<\/strong> 1U rack-mountable low-profile oscilloscope, 4 analog + 16 digital channels (MSO)<\/li>\n<li><strong>Bandwidth:<\/strong> 200 MHz standard, license upgrades to 350 MHz, 500 MHz or 1 GHz<\/li>\n<li><strong>Sample rate &amp; memory:<\/strong> 3.2 GSa\/s per channel, 100 Mpts per channel<\/li>\n<li><strong>Resolution:<\/strong> 14-bit ADC (16 bits in HD mode), noise floor under 50 \u00b5Vrms at full bandwidth<\/li>\n<li><strong>Update rate:<\/strong> over 1,300,000 waveforms per second, real-time zone trigger on the MegaZoom 5 ASIC<\/li>\n<li><strong>Multi-scope sync:<\/strong> autosensing 10 MHz reference in\/out, systems of more than 100 time-correlated channels<\/li>\n<li><strong>Documentation:<\/strong> <a href=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2026\/11\/Keysight-InfiniiVision-XR3-Low-Profile-Oscilloscope-datasheet-3126-1847EN.pdf\" target=\"_blank\" rel=\"noopener\" download>download the XR3 data sheet (PDF)<\/a><\/li>\n<\/ul>\n","protected":false},"featured_media":275996,"comment_status":"open","ping_status":"closed","template":"","meta":{"_themeisle_gutenberg_block_has_review":false},"product_brand":[],"product_cat":[275],"product_tag":[],"class_list":{"0":"post-276038","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-storage-oscilloscopes","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) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Keysight XR3 XR3L4A 1U 14-bit Oscilloscope | Techmaster<\/title>\n<meta name=\"description\" content=\"Keysight XR3 XR3L4A: 1U rack-mount oscilloscope, 4 analog + 16 digital channels, 14-bit ADC, up to 1 GHz, sync over 100 channels. 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