{"id":93897,"date":"2026-05-15T13:58:53","date_gmt":"2026-05-15T11:58:53","guid":{"rendered":"https:\/\/pihernz.com\/?post_type=product&p=93897"},"modified":"2026-07-13T11:07:31","modified_gmt":"2026-07-13T09:07:31","slug":"sirio-mga-108-480-pl-vhf-uhf-adjustable-108-to-480-mhz","status":"publish","type":"product","link":"https:\/\/pihernz.com\/en\/producto\/sirio-mga-108-480-pl-vhf-uhf-adjustable-108-to-480-mhz\/","title":{"rendered":"Sirio MGA 108-480 PL Mobile Antenna \u2013 VHF\/UHF Field-Trimmable 1\/4 Wave Whip, 100W Power Rating, 17\/7 PH Stainless Steel Rod with PL-259 Connector Base"},"content":{"rendered":"

The Sirio MGA 108-480 PL<\/strong> is a professional-grade, high-integrity VHF\/UHF adjustable mobile antenna engineered explicitly to deliver rugged, high-performance signal propagation across an exceptionally wide spectrum of communication bands. Designed with a field-trimmable 1\/4 wave (\u00bc) radiating architecture, this premium vehicle whip allows technical staff to precision-tune resonance anywhere between 108 and 480 MHz by following the included frequency cutting table chart. Acting as a heavy-duty, direct upgrade that replaces the legacy MGA 108-550 PL model, this antenna serves as an essential universal infrastructure component for diverse transport networks, municipal service configurations, and B2B radiocommunication hardware depots.<\/p>\n

The core radiating element centers around a robust, 2.5 mm diameter straight rod constructed from high-tensile 17\/7 PH stainless steel, paired with a chrome-plated brass body assembly. This metallurgical architecture provides elite mechanical resilience against severe highway wind velocities, low-hanging foliage friction, and demanding environmental exposure while maintaining vertical signal linearity. To maximize system impedance pathways and lock down a stable voltage standing wave ratio (VSWR), the antenna yields an active bandwidth greater than 5 MHz at an SWR of less than 2:1 near its lowest tuning limits, handling up to 100W continuous CW transmission power.<\/p>\n

For flexible vehicular integration, the base terminates in a high-quality integrated male PL connector (PL-259) designed to drop directly into any standard PL female (SO-239) base or magnetic mount installation layout. When optimizing the antenna for higher UHF deployments, it is highly recommended to pair the whip with a high-quality, low-loss Sirio 500MHz certified base (such as the PM-100PL, HPACU, N-PL, or NE-PL series) to limit dielectric losses. Supplied as a standalone field radiator without base and cable accessories, this turnkey whip is instantly compatible with a massive matrix of global communication standards, extending from aviation air bands up to commercial UHF networks.<\/p>\n

Technical Specifications<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Technical Parameter<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Brand<\/td>\nSirio Antenne<\/td>\n<\/tr>\n
Model Designation<\/td>\nMGA 108-480 PL (Replaces MGA 108-550 PL model layout)<\/td>\n<\/tr>\n
Factory Part Number<\/td>\n2431505.05<\/td>\n<\/tr>\n
Antenna Classification Type<\/td>\nVHF \/ UHF Adjustable Mobile Antenna (1\/4 Wave Radiating)<\/td>\n<\/tr>\n
Tuning & Frequency Range<\/td>\n108 to 480 MHz continuous \u2013 Adjustable by manual cutting chart calibration<\/td>\n<\/tr>\n
Interface Connector Base<\/td>\nPL Male (PL-259 standard type \/ Matches any PL Female SO239 base connector)<\/td>\n<\/tr>\n
Compatible Operational Systems<\/td>\n\u2022 Aviation \/ VHF Air Band Communications
\n\u2022 Marine VHF Band & AIS-162MHz Tracking Systems
\n\u2022 2m-HAM, 1.25m-HAM, and 70cm-HAM Radio Bands
\n\u2022 Commercial PMR-VHF \/ PMR-UHF & TETRA (350MHz \/ 380-395MHz) Fleets
\n\u2022 LoRa-433, ISM-169MHz, ORBCOMM M2M, VHF-260MHz, CDMA-450, and LTE-450 Networks<\/td>\n<\/tr>\n
Maximum Applicable Power<\/td>\n100 Watts (100W CW Continuous Power Limit)<\/td>\n<\/tr>\n
Active System Impedance<\/td>\n50 Ohms Nominal<\/td>\n<\/tr>\n
Radiation Pattern Profile<\/td>\nOmnidirectional \/ Linear Vertical Polarization (0 Ref. lambda 1\/4 gain threshold)<\/td>\n<\/tr>\n
Required Electrical Ground Plane<\/td>\nMetallic vehicle chassis surface installation required<\/td>\n<\/tr>\n
Hardware Material Composition<\/td>\n17\/7 PH Stainless Steel whip element (2.5 mm diameter) with a Chrome-Plated Brass body core<\/td>\n<\/tr>\n
Color Profile<\/td>\nSilver Metallic Chrome<\/td>\n<\/tr>\n
Physical Vertical Dimensions<\/td>\nLength L: Max 77.5 cm untrimmed (Full length calibrated for 108 MHz base deployment)<\/td>\n<\/tr>\n
Primary Utility Purpose<\/td>\nUniversal fleet vehicle staging, multi-band transceiver routing stabilization, and replacement stock management<\/td>\n<\/tr>\n
Package Content<\/td>\n1x Sirio MGA 108-480 PL Antenna Whip Element (Supplied without separate installation base, cable assembly, or mounts)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Sirio MGA 108-480 PL -VHF- UHF adjustable 108 to 480 MHz<\/p>\n","protected":false},"featured_media":94248,"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":[12124],"product_cat":[12333,12397,12324],"product_tag":[],"class_list":{"0":"post-93897","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-sirio-en","7":"product_cat-movil-en","8":"product_cat-movil-doble-banda-en","9":"product_cat-antenas-en-2","11":"first","12":"instock","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"acf":[],"yoast_head":"\nSirio MGA 108-480 PL Adjustable VHF UHF Mobile Antenna | B2B<\/title>\n<meta name=\"description\" content=\"Source the Sirio MGA 108-480 PL tunable VHF\/UHF mobile antenna. 100W, 17\/7 PH stainless steel, field-cuttable from 108 to 480 MHz. 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