{"id":17311,"date":"2019-03-19T00:00:00","date_gmt":"2019-03-18T23:00:00","guid":{"rendered":"https:\/\/pihernz.com\/product\/nissei-rs-502\/"},"modified":"2026-07-09T15:05:19","modified_gmt":"2026-07-09T13:05:19","slug":"nissei-rs-502","status":"publish","type":"product","link":"https:\/\/pihernz.com\/en\/producto\/nissei-rs-502\/","title":{"rendered":"Nissei RS-502 Premium Dual-Band SWR & Wattmeter \u2013 1.8\u2013525 MHz Wideband Stationary Wave Meter with Peak SSB Power Reading, 200W Measurement Scale, and Backlit Display"},"content":{"rendered":"

The Nissei RS-502 – STATIONARY WAVE METER (ROE) WATIMETER<\/strong> is a commercial-grade, high-precision radio frequency diagnostic instrument precision-engineered to monitor transmission line efficiency and absolute terminal matching parameters across multi-tier wireless networks. Developed by a prominent industry leader in RF telemetry, this dual-band bench instrument integrates two cross-phased sensing cores inside a shielded metal enclosure to safeguard low-level logic indicators from electromagnetic stray loops. It serves as an essential logistics procurement asset for municipal communication towers, aviation engineering bays, security system integrators, and high-volume B2B radiocommunication hardware distribution networks looking to source elite laboratory-grade line auditing equipment.<\/p>\n

The advanced optoelectronic display configuration of the Nissei RS-502 is explicitly mapped out to deliver quick-glance diagnostics during intensive tuning cycles. The internal detector matrix supports comprehensive diagnostic tracking, including immediate radiated power reading<\/strong> loops alongside a highly sensitive reading reflected power<\/strong> node to compute total return loss indexes. To accommodate modern complex digital wave shapes, a dedicated front-panel circuit allows for the direct reading power peaks (SSB)<\/strong>, ensuring that single-sideband peak envelope power (PEP) is fully tracked without instrument inertia or lagging meter drops.<\/p>\n

Engineered for high broad-spectrum versatility, the instrument splits its processing paths cleanly over an extended multi-frequency matrix, providing verified coverage across 1.8-125 MHz and 125-525 MHz<\/strong> bands, capturing everything from high-frequency HF Citizen Band systems up to UHF digital mobile radio (DMR) setups. The internal sensor array features an operational measuring power scale of 0-200W<\/strong>, easily scaled via physical step keys across three selectable calibration bounds of 5 \/ 20 \/ 200W<\/strong> for maximized resolution. Possessing a highly sensitive detection threshold that begins tracking matching properties with a minimum SWR measurement power of 3W<\/strong>, this turnkey diagnostic tool guarantees immediate technical system alignment, optimal vertical radiation clearance validation, and absolute field bench readiness.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Technical Specification Parameter<\/th>\nSpecifications<\/th>\n<\/tr>\n<\/thead>\n
Product Brand Designation<\/td>\nNissei (Original Factory High-Precision Diagnostic Line)<\/td>\n<\/tr>\n
Hardware Model Designation<\/td>\nRS-502 \/ RS502 (Advanced Dual-Sensor Series)<\/td>\n<\/tr>\n
Primary Component Classification<\/td>\nFixed Stationary Wave SWR (ROE) and RF Power Wattmeter<\/td>\n<\/tr>\n
Telemetry Sensor Tracking Matrix<\/td>\nForward Radiated Power | Reflected Return Power | SSB Peak Envelope Power (PEP)<\/td>\n<\/tr>\n
Operational Frequencies Scope<\/td>\nDual-Band Block Coverage: 1.8 – 125 MHz (HF\/VHF) \/ 125 – 525 MHz (VHF\/UHF)<\/td>\n<\/tr>\n
Total Power Measurement Capacity<\/td>\n0 to 200 Watts (200W) Maximum Continuous Applied Line Power<\/td>\n<\/tr>\n
Selectable Power Range Scale<\/td>\n3-Stage Switchable Resolution: 5 Watts \/ 20 Watts \/ 200 Watts Scales<\/td>\n<\/tr>\n
Minimum SWR Detection Sensitivity<\/td>\nRequires a Minimum of 3 Watts (3W) Active Carrier for Standing Wave Computation<\/td>\n<\/tr>\n
System Line Impedance Match<\/td>\n50 Ohms Nominal Standard Impedance Path Optimization<\/td>\n<\/tr>\n
Primary Structural Housing<\/td>\nHeavy-Duty Impact-Resistant Shielded Metal Alloy Chassis<\/td>\n<\/tr>\n
Verified Hardware Compatibility Scope<\/td>\nBase station transceivers, commercial linear power amplifiers, 50-ohm coaxial transmission lines, dummy loads, and regional antenna networks<\/td>\n<\/tr>\n
Primary Fleet Utility Purpose<\/td>\nTurnkey radio workbench outfitting, real-time antenna tuning validation, feedline reflection tracking, and transceiver final stage amplification blowout protection<\/td>\n<\/tr>\n
Specification Variance Notice<\/td>\nAll manufacturer technical specifications remain subject to change without prior tracking updates<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

SWR\/power meter<\/p>\n","protected":false},"featured_media":31024,"template":"","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","inline_featured_image":false,"_joinchat":[]},"product_brand":[12155],"product_cat":[12293,12287,12275],"product_tag":[12985],"class_list":{"0":"post-17311","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-nissei-en","7":"product_cat-nissei-medidores-y-frecuencimetros-accesorios-emisoras-en","8":"product_cat-meters-and-frequency-meters","9":"product_cat-accesorios-emisoras-en","10":"product_tag-cb-en","12":"first","13":"instock","14":"taxable","15":"shipping-taxable","16":"purchasable","17":"product-type-simple"},"acf":[],"yoast_head":"\nNissei RS-502 SWR & Wattmeter | 1.8-525MHz 200W Meter | B2B<\/title>\n<meta name=\"description\" content=\"Source the commercial Nissei RS-502 stationary wave SWR and wattmeter. Covering 1.8-525MHz with a 0-200W scale (5\/20\/200W updates), this dual-band cross-needle meter provides radiated, reflected, and SSB peak power readings. B2B stock.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pihernz.com\/en\/producto\/nissei-rs-502\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Nissei RS-502 SWR & Wattmeter | 1.8-525MHz 200W Meter | B2B\" \/>\n<meta property=\"og:description\" content=\"Source the commercial Nissei RS-502 stationary wave SWR and wattmeter. Covering 1.8-525MHz with a 0-200W scale (5\/20\/200W updates), this dual-band cross-needle meter provides radiated, reflected, and SSB peak power readings. B2B stock.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pihernz.com\/en\/producto\/nissei-rs-502\/\" \/>\n<meta property=\"og:site_name\" content=\"Pihernz Comunicaciones\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/pihernz.comunicaciones\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-09T13:05:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pihernz.com\/wp-content\/uploads\/2019\/03\/1993_1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"859\" \/>\n\t<meta property=\"og:image:height\" content=\"623\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@pihernz\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/pihernz.com\\\/en\\\/producto\\\/nissei-rs-502\\\/\",\"url\":\"https:\\\/\\\/pihernz.com\\\/en\\\/producto\\\/nissei-rs-502\\\/\",\"name\":\"Nissei RS-502 SWR & Wattmeter | 1.8-525MHz 200W Meter | B2B\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pihernz.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/pihernz.com\\\/en\\\/producto\\\/nissei-rs-502\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/pihernz.com\\\/en\\\/producto\\\/nissei-rs-502\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pihernz.com\\\/wp-content\\\/uploads\\\/2019\\\/03\\\/1993_1.jpg\",\"datePublished\":\"2019-03-18T23:00:00+00:00\",\"dateModified\":\"2026-07-09T13:05:19+00:00\",\"description\":\"Source the commercial Nissei RS-502 stationary wave SWR and wattmeter. 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