Grazioli Antennas now available at MTCradio
Grazioli MV7 High Power Multiband Vertical 40-6 Meters Ground Plane
SKU 8050020
$1,099.00
Click Below to Buy at MTCRadio
HF High Power 40-6 Meter Multiband Ground Plane
Click Below to Buy at MTCRadio
Grazioli MV7 High Power Multiband Vertical 40-6 Meters Ground Plane
Product Details
Brand: Grazioli
Weight: 19.20 lbs
Buy Now at MTC
Current Tariffs included in price as of11-30-25
15 Percent Base Tariff
50 Percent Italian Aluminum Tariff
Paperwork surcharge and customs entry fees added
This is ridiculous, but it is what it is
Overview
Vertical multiband 1/4 λ Ground Plane base-fed antenna
HF 40,20, 17, 15, 12, 10m + VHF 6m
Fed at the base
Max Input Power: 1500 Watt SSB/600 Watt FT8 on 40 Meters AND 3KW SSB on on all bands
Total Height: 22.14 FT
Antenna weight: 17.2 LBS
Main Features
Grazioli MV7
Now supplied with original FAIR-RITE FT240-43 ferrite toroid Made in USA
Vertical multiband 1/4 λ Ground Plane base-fed antenna for the following HAM bands: 40, 20, 17, 15, 12, 10 and 6m.
Extremely robust construction in AW6063-T66 aluminum alloy and CNC machined parts from solid stock.
Supplied with high-quality 304 and 316 stainless steel fasteners for long rust-free operating life.
High input power, up to 1500W SSB @ 40m - 3kW on other bands.
Detailed assembly manual and serial number that identifies the production batch and construction data.
Materials and Construction
For our tubing, we use the best material that can be used for antenna construction; it is the Aluminum, Magnesium and Silicon alloy named AW6063-T66, hardened to the T-66 state. It gives the stylus exceptional strength, which is made by extrusion and then cold-drawn.
Of extremely robust construction, the central stylus uses 42x2mm diameter tubes at the base and 19x1.25mm diameter at the tip, while the side stubs and ground plane radials are made of 13 and 10mm diameter telescopic tubes.
The ground plane is formed by 4 horizontal radials of approximately 2.7m in length, and the vertical stubs are held in place by 3 crossbars, the first connected to the base of the stylus is made of CNC-machined rectangular-section aluminium tubing, and the other 2 of thermoplastic material, one with 4 arms in the middle part, and one with 2 arms in the upper part.
All hardware is made of stainless steel, the tubes are secured with robust, quality stainless steel AISl-316 clamps, brackets, hardware, and U-bolt and V-bolt U-bolts are made of AISl-304 stainless steel.
Technical Data
SWR and Smith Chart
Technical choices that make the difference
A high-performance and robust antenna with Grazioli brand standards.
The basic idea was to make an efficient antenna, without using traps that reduce efficiency, and without using impedance transformers that limit the applicable power.
Based on these assumptions, we realized MV7, which by using resonant elements parallel (stubs) to the central stylus, allowed us to realize an efficient antenna on all bands covered.
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Technical Details on OperationMV7 is built on the basis of the well-established MV6, from which it takes almost all of its mechanics, with the exception of the central stylus, which is now Dual Band (40+20m), obtained by adding a coil with a capacitive cap, which decouples the lower part of the 20m band and, at the same time, provides adequate inductive charging for the 40m band. The MV7 uses a modified ground plane compared to the MV6, with an innovative system called DBFC, which stands for Dual Band Folded Counterpoise, making this system unique (patent pending). The DBFC system creates a dual-band electric counterweight, where a highly flexible and lightweight 1mm diameter AISI316 stainless steel 19-strand cable is anchored at the tip to one of the four radials. The significant difference in diameter between the 10 mm aluminum radial and the 1 mm stainless steel cable means that the high impedance at the junction point allows only the lowest band of 40 m to flow through the cable (hence the dual-band function), while the higher bands, e.g. 20 m and above, function as before. The total length of the stainless steel cable, plus the length of the aluminum radial, form a single counterweight of approximately 1/4 wave at 40 meters, which is then folded back towards the next two radials, reducing the overall size and avoiding the need to install awkward wire radials or resort to loaded radials.
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The RF Choke for attenuating common mode currentsNow supplied with the MV6 is an original FAIR-RITE Made in the USA FT240-43 ferrite toroid for “Home Made” construction of your high-performance Choke. This arrangement allows you to significantly attenuate common mode currents in the HF band (1.8-30MHz), which could reduce the performance of your antenna. Material not supplied at customer's expense for fabrication: We absolutely discourage the use of cables with FOAM foam-type dielectric (white spongy dielectric) because they cannot be wrapped around the toroid without compromising its electrical characteristics.
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MV7 Radiation DiagramGrazioli Antenne entrusted the radiation pattern simulations to 3T, a German company equipped with ‘FEKO’ electromagnetic simulation software, which represents the state of the art in antenna and 3D structure simulations and is also used in the military and aerospace fields.
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UHF ConnectorThe FE10V connector is not a commercial SO-239 type connector as most manufacturers use. The connector was designed and built directly by us, has a real impedance of 50 Ohms and can be used up to 500 MHz. The goal was to create a reliable connector capable of withstanding 5kW CW continuous at 30 MHz. The body is made of CW614N nickel-plated brass, while the pin is plated in 24K gold to avoid oxidation and equipped with a 4-fin insulator that maintains its centering and elasticity, avoiding contact losses. The insulating part is made of PTFE which is one of the best insulating materials due to its exceptional electrical (low dielectric constant, and reduced loss factor) and thermal (operating temperature from -100 ° to + 260 °) and is protected from a special elastomer hood that prevents water and humidity infiltration |
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The Mounting BracketMade of 2.5mm thick AISI304 stainless steel, it is fixed to the antenna tube by means of a clamp closure system, creating an extremely strong mechanical locking. Fixing to the mast is made with AISI304 M6 V-Bolt and high type nuts to facilitate tightening. |
FAQ-MV7
For which bands is the MV7 antenna designed? The Grazioli MV7 is a ¼ λ Ground Plane multiband vertical antenna, which operates on the 40, 20, 17, 15, 12, 10m and VHF 6m bands.
What are the main technical characteristics of the MV7? Total height 8.97 m, weight 8.5 kg, maximum power 1500 W SSB on 40m and up to 3 kW on other bands. Materials: AW6063-T66 aluminium alloy, AISI 304/316 stainless steel screws.
What is the structural construction of the MV7 antenna? Central stylus with a sturdy section at the base, 10 mm tip; ground plane with 4 horizontal radials approximately 2.7 m long, plus a folded stainless steel wire radial for the 40 m band, 4 lateral stubs resonant on HAM bands.
What are the advantages of the MV7 for radio amateurs? It provides wide multiband coverage without the need for multiple antennas, designed for high power and durability.
What warranty and origin does the MV7 antenna have? Manufactured entirely in Italy by Grazioli Antenne, with premium components and stainless steel screws; it comes with an installation manual and indicates the serial number for traceability and spare parts. It also has a One year warranty.
What environmental conditions can the MV7 antenna withstand? Wind resistance up to 130 km/h (only if braced) and wind surface area 0.42 m²; materials designed to last even in exposed environments.
