{"id":16249,"date":"2019-03-19T00:00:00","date_gmt":"2019-03-18T23:00:00","guid":{"rendered":"https:\/\/pihernz.com\/product\/se50\/"},"modified":"2026-07-09T16:07:21","modified_gmt":"2026-07-09T14:07:21","slug":"diamond-se50-marine-antenna-2m-70cm","status":"publish","type":"product","link":"https:\/\/pihernz.com\/en\/producto\/diamond-se50-marine-antenna-2m-70cm\/","title":{"rendered":"Diamond SE50 Dual-Band Marine Base Antenna \u2013 2.0m Heavy-Duty Fiberglass Radome for 2m\/70cm VHF\/UHF with Saltwater-Resistant Stainless Steel Hardware and Radial-Free Design"},"content":{"rendered":"

The Diamond SE50 Marine Antenna 2m\/70cm<\/strong> is a commercial-grade, high-integrity vertical base station radiator precision-engineered to deliver secure, long-range voice and data synchronization over punishing maritime and coastal environments. Characterized by its specialized radial-free architecture, this premium dual-band stick antenna completely eliminates protruding side elements, ensuring that it will not snag or get in the way when handling lines, rigging, or ropes on a ship deck. It stands as an essential operational procurement asset for commercial cargo vessels, port authority infrastructure, offshore industrial platforms, and high-volume B2B radiocommunication hardware distribution networks looking to source authentic, marine-hardened telemetry instruments.<\/p>\n

The internal RF architecture of the Diamond SE50 delivers exceptional broad-spectrum efficiency across core VHF and UHF frequencies. Operating natively on the 144 \/ 430MHz (2m \/ 70cm)<\/strong> bands, the antenna features an advanced phasing configuration: a 6\/8 wave C-Load at 144MHz<\/strong> providing a crisp 4.5dB gain<\/strong>, and a triple-stacked 3×5\/8 wave C-Load at 430MHz<\/strong> delivering an impressive 7.2dB gain<\/strong> to pierce through heavy maritime atmospheric attenuation. Engineered for high-integrity transmission cycles, it accommodates a maximum power rating of 100W FM (Total)<\/strong>, maintaining a nominal system impedance of 50 ohms<\/strong> and an ultra-stable efficiency curve with a VSWR of less than 1.5:1<\/strong> to safeguard connected transceivers from harmful reflected power loads.<\/p>\n

Constructed to survive continuous saltwater spray and extreme multi-season marine environments, the structural framework features an ultra-rugged Fiber Reinforced Polymer (FRP outershell<\/strong>) glass fibre tube that protects the active inner brass elements from corrosion. The heavy-duty brass\/chrome plated mounting tube<\/strong> is permanently attached to the main fiberglass radome body, eliminating weak mechanical joints. All mounting brackets are treated with a special protective anti-corrosion coating, while all remaining attachment hardware is made from premium, marine-grade stainless steel<\/strong>. Boasting a structural rated wind velocity of 60m\/sec<\/strong>, this 2.0m length<\/strong> vertical antenna handles extreme maritime storms cleanly while registering a balanced, low-torque weight of just 0.8kg<\/strong>.<\/p>\n

While engineered for maritime vessel deployment, the SE50 functions beautifully as an unobtrusive land-based station antenna for coastal ports, residential buildings, or industrial facilities where traditional grounding radials are structurally impractical or visually restrictive. The bottom feedpoint terminates in a high-retention MJ (PL-SO239 UHF Female) connector<\/strong> with deep-threaded engagement to prevent water ingress. Designed for immediate out-of-the-box system alignment and absolute field deployment readiness, the included heavy-duty mounting clamp hardware accommodates an accepted mast diameter ranging from 30mm to 62mm<\/strong> to guarantee a swift and stable fleet deployment pipeline.<\/p>\n\n\n\n\n\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>\nDiamond Antenna (Original Genuine Japanese Factory Line)<\/td>\n<\/tr>\n
Hardware Model Designation<\/td>\nSE50 \/ SE-50 Marine Class Series<\/td>\n<\/tr>\n
Primary Component Classification<\/td>\nDual-Band Radial-Free Marine & Base Station Vertical Antenna<\/td>\n<\/tr>\n
Active Operational Frequencies<\/td>\n144 MHz VHF Band & 430 MHz UHF Band (2m \/ 70cm Dual Alignment)<\/td>\n<\/tr>\n
Antenna Phasing Element Type<\/td>\nVHF: 6\/8 Wave C-Load | UHF: 3x 5\/8 Wave C-Load Architecture<\/td>\n<\/tr>\n
System Forward Radiated Gain<\/td>\nVHF (144MHz): 4.5 dB | UHF (430MHz): 7.2 dB Signal Focus<\/td>\n<\/tr>\n
Maximum Input RF Power Capacity<\/td>\n100 Watts (100W) Continuous FM Transmitter Output (Total Envelope)<\/td>\n<\/tr>\n
Voltage Standing Wave Ratio Efficiency<\/td>\nVSWR < 1.5:1 Target Resonance Calibration<\/td>\n<\/tr>\n
System Characteristic Impedance<\/td>\n50 Ohms Nominal Transmission Line Standardization Path<\/td>\n<\/tr>\n
Primary Structural Insulation<\/td>\nFiber Reinforced Polymer (FRP Outershell) Glass Fibre Tube Radome<\/td>\n<\/tr>\n
Hardware Metal Component Profile<\/td>\nChrome-Plated Brass base tube, Coated brackets, Stainless Steel fittings<\/td>\n<\/tr>\n
Maximum Rated Wind Velocity<\/td>\nUp to 60 Meters per Second (60 m\/sec) Dynamic Load Survival<\/td>\n<\/tr>\n
Primary Input Feed Connector<\/td>\nMJ Connection Type (Standard SO-239 PL UHF Female Jack Port)<\/td>\n<\/tr>\n
Total Physical Assembly Length<\/td>\n2.0 Meters (2.0m Continuous Unobtrusive Stick Profile)<\/td>\n<\/tr>\n
Net Operational Antenna Mass<\/td>\n0.8 kg (800 grams) Low-Torque Lightweight Mast Balance<\/td>\n<\/tr>\n
Accepted Rigging Mast Diameters<\/td>\n30 mm to 62 mm Flexible Clearance Bracket Anchoring<\/td>\n<\/tr>\n
Verified Hardware Compatibility Scope<\/td>\nPL259 UHF male coaxial lines, marine VHF transceivers, dual-band base station transceivers, port infrastructure mounts, and vessel antenna brackets<\/td>\n<\/tr>\n
Primary Fleet Utility Purpose<\/td>\nTurnkey maritime vessel outfitting, anti-snag port communication tracking, harsh saltwater environment deployment, and final-stage transmitter circuit reflection protection<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Marine antenna dual band<\/p>\n","protected":false},"featured_media":65875,"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":[12171],"product_cat":[12831,12391,12331,12332,12324],"product_tag":[12712],"class_list":{"0":"post-16249","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-diamond-antenna-en","7":"product_cat-base-antennas","8":"product_cat-base-doble-banda-en","9":"product_cat-diamond-antenas-en","10":"product_cat-marina-antenas-en","11":"product_cat-antenas-en-2","12":"product_tag-marine","14":"first","15":"onbackorder","16":"taxable","17":"shipping-taxable","18":"purchasable","19":"product-type-simple"},"acf":[],"yoast_head":"\nDiamond SE50 Marine Antenna | Dual-Band VHF\/UHF FRP | B2B<\/title>\n<meta name=\"description\" content=\"Source the commercial Diamond SE50 dual-band marine antenna. 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