{"id":66409,"date":"2024-09-06T12:49:14","date_gmt":"2024-09-06T10:49:14","guid":{"rendered":"https:\/\/pihernz.com\/?post_type=product&p=66409"},"modified":"2026-07-08T11:48:21","modified_gmt":"2026-07-08T09:48:21","slug":"jetfon-gp4-omnidirectional-quad-band-fiberglass-base-antenna","status":"publish","type":"product","link":"https:\/\/pihernz.com\/en\/producto\/jetfon-gp4-omnidirectional-quad-band-fiberglass-base-antenna\/","title":{"rendered":"Jetfon GP4 Quad-Band Fiberglass Base Antenna \u2013 10m\/6m\/2m\/70cm Omnidirectional Base Station Antenna with SO-239 Connector and Direct Ground Protection"},"content":{"rendered":"

The Jetfon GP4 omnidirectional quad-band fiberglass base antenna<\/strong> is a commercial-grade, multi-band base station radiator precision-engineered to deliver reliable multi-frequency coverage from a single structural footprint. Designed for versatile fixed-station deployments, this high-integrity antenna offers quad-band transmission and reception capabilities across key allocations: 28-29.7 MHz (10 Meters), 50-51 MHz (6 Meters), 144-146 MHz (2 Meters), and 430-440 MHz (70 Centimeters)<\/strong>. It serves as an essential logistics procurement asset for emergency communication hubs, multi-band dispatch networks, regional monitoring stations, and high-volume B2B radiocommunication hardware wholesale distribution channels looking to secure high-efficiency, multi-band base infrastructure.<\/p>\n

The internal electrical engineering of the Jetfon GP4 utilizes premium high-conductivity copper radiating elements<\/strong> encased in a heavy-duty, UV-stabilized white fiberglass outer shell<\/strong> to withstand extreme wind stress, ice loading, and severe outdoor environments. To maximize propagation efficiency across varying terrain, the vertical array delivers a highly optimized omnidirectional radiation pattern with staggered power gain metrics of 2.5 dBi (29\/50 MHz), 3.0 dBi (144 MHz), and 5.5 dBi (430 MHz)<\/strong>. Rated for a maximum power threshold of 60 Watts<\/strong>, the antenna maintains tight voltage standing wave ratio metrics with a VSWR of < 1.5 on the VHF\/UHF bands and < 2.8 on the 10m\/6m segments when matched to standard 50-ohm transmission feedlines.<\/p>\n

Built with critical infrastructure survival in mind, the GP4 features a robust direct ground internal structure<\/strong> that safely routes high-voltage atmospheric static and nearby lightning discharges directly to the mounting mast, protecting delicate transceiver circuitry downstream from catastrophic damage. Standing at a compact total length of 1,220 mm (\u00b15 mm)<\/strong>, the antenna base terminates in a heavy-gauge, moisture-resistant SO-239 (UHF Female \/ PL) chassis socket<\/strong>. This plug-and-play vertical array ensures rapid installation, tool-free feedline coupling, and complete multi-shift operational readiness for critical multi-band voice and telemetry networks.<\/p>\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>\nJetfon (Original Factory Component Line)<\/td>\n<\/tr>\n
Hardware Model Designation<\/td>\nGP4 (Omnidirectional Quad-Band Series)<\/td>\n<\/tr>\n
Primary Component Classification<\/td>\nMulti-Band Omnidirectional Vertical Base Antenna<\/td>\n<\/tr>\n
Operational Frequencies Matrix<\/td>\n28.0 – 29.7 MHz | 50.0 – 51.0 MHz | 144.0 – 146.0 MHz | 430.0 – 440.0 MHz<\/td>\n<\/tr>\n
System Power Gain Profile<\/td>\n2.5 dBi (10m\/6m) | 3.0 dBi (2m) | 5.5 dBi (70cm)<\/td>\n<\/tr>\n
Voltage Standing Wave Ratio<\/td>\nVSWR < 1.5 (144\/433 MHz) | VSWR < 2.8 (29.6\/50.5 MHz)<\/td>\n<\/tr>\n
Maximum Input RF Power Capacity<\/td>\n60 Watts Continuous Maximum Threshold<\/td>\n<\/tr>\n
System Characteristic Impedance<\/td>\n50 Ohms Nominal Standard Optimization<\/td>\n<\/tr>\n
Signal Propagation Fields<\/td>\nVertical Polarization \/ 360\u00b0 Omnidirectional Radiation<\/td>\n<\/tr>\n
Lightning Surge Protection<\/td>\nIntegrated Direct Chassis Ground Safety Path<\/td>\n<\/tr>\n
Primary RF Interface Connection<\/td>\nSO-239 UHF Female Heavy-Duty Base Connector Sockets<\/td>\n<\/tr>\n
Primary Internal Radiation Material<\/td>\nHigh-Conductivity Premium Copper Elements<\/td>\n<\/tr>\n
Outer Enclosure Shield Material<\/td>\nRuggedized, Weatherproof Protective Fiberglass Radome (White)<\/td>\n<\/tr>\n
Total Physical Antenna Length<\/td>\n1,220 mm \u00b1 5 mm Vertical Clearance Height<\/td>\n<\/tr>\n
Verified Hardware Compatibility Scope<\/td>\nQuad-Band Base Transceivers, Duplexers, SWR Bridges, PL-259 Coaxial Lines, and standard 50-ohm RF equipment<\/td>\n<\/tr>\n
Primary Fleet Utility Purpose<\/td>\nTurnkey fixed-base multi-band station outfitting, public safety command links, weather-exposed infrastructure outfitting, and equipment surge protection<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Quad-band base antenna<\/p>\n","protected":false},"featured_media":66401,"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":[12093],"product_cat":[12831,12404,12324],"product_tag":[12710],"class_list":{"0":"post-66409","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-jetfon-en","7":"product_cat-base-antennas","8":"product_cat-base-multibanda-en","9":"product_cat-antenas-en-2","10":"product_tag-ham-radio","11":"model-gp4-p10","13":"first","14":"instock","15":"taxable","16":"shipping-taxable","17":"purchasable","18":"product-type-simple"},"acf":[],"yoast_head":"\netfon GP4 Fiberglass Antenna | Quad-Band Omnidirectional Base | B2B<\/title>\n<meta name=\"description\" content=\"Source the heavy-duty Jetfon GP4 omnidirectional quad-band base antenna. 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