GRAZIOLI MV7
Seven amateur bands, from 40 to 6 metres
Allow space for the total height of 8.97 m and the four horizontal radials of about 2.7 m. The mast must be 40–54 mm in diameter. The wind resistance of 130 km/h is declared only with the antenna guyed: in very windy areas use non-conductive guy lines and the supplied guy ring. Maximum power: 1,500 W SSB on 40 m and 3 kW on the other bands. The included toroid is for building the choke; it is not a pre-assembled choke.
Product description
The Grazioli MV7 is a base-fed ¼ ? Ground Plane multiband vertical antenna for the amateur bands of 40, 20, 17, 15, 12, 10 and 6 metres. Resonant elements parallel to the central whip allow multiband operation without impedance transformers. In a fixed station it lets you move from HF to 50 MHz with a single radiating structure, with vertical polarisation and omnidirectional radiation.
The 40/20 m dual-band central whip uses a coil with a capacitive hat; the adjustable upper section allows tuning on 40 m. The DBFC system integrates the counterpoise for the lowest band into the ground plane, reducing the footprint compared with long stretched-out wire radials.
Key features
Coverage of the 40, 20, 17, 15, 12, 10 and 6 m bands using a central whip and parallel resonant stubs.
Dual Band Folded Counterpoise: folded counterpoise for 40 m, integrated with the ground plane radials.
Cold-drawn AW6063-T66 aluminium, CNC machining and AISI 304/316 stainless steel hardware.
Original FT240-43 for building a choke and attenuating common-mode currents on HF. Cable and connectors not included.
The HamRadioShop Team's Opinion
An interesting solution for anyone who wants a multiband station from 40 to 6 metres without installing a vertical for each band. Before choosing, consider above all space for the radials, sturdiness of the support and guying. Take care with tuning and building the choke: they are important parts of the installation.
Construction and counterpoise system
The structure uses AW6063-T66 alloy tubes. Stubs and radials are telescopic; three spreaders hold the side elements in position. AISI 316 stainless clamps, AISI 304 stainless brackets and U-bolts complete the assembly.
The DBFC uses a 1 mm, 19-strand AISI 316 stainless wire rope, connected to the end of one radial and folded back towards the next ones. The total length of radial and wire rope forms the counterpoise for 40 m, while on the higher bands the ground plane remains operational.
The UHF female connector designed by Grazioli has a nickel-plated brass body, gold-plated contact and PTFE insulation, with an elastomer seal against water ingress. The mounting bracket is 2.5 mm AISI 304 stainless steel, with M6 V-Bolt U-bolts and column nuts.
Supplied items and choke
Supplied are the assembly manual, a guy ring and a FAIR-RITE FT240-43 toroid for building the choke. The serial number identifies the production batch. For the choke you need, separately, coaxial cable and connectors suitable for the power used: follow the manufacturer's instructions. Do not use foam-dielectric coax for winding on the toroid.
Technical specifications
| Brand / model | Grazioli MV7 |
| Type | ¼ ? Ground Plane with parallel stubs |
| Bands | HF 40, 20, 17, 15, 12, 10 m; VHF 6 m |
| Impedance | 50 O unbalanced |
| Radiation / polarisation | Omnidirectional / vertical linear |
| Declared gain | 0 dBd / 2.15 dBi |
| Bandwidth at SWR 2:1 | Full band on 40, 20, 17, 15, 12 and 10 m; over 1.5 MHz on 6 m |
| SWR at resonance | = 1.5:1 typical |
| Maximum power | 1,500 W SSB on 40 m; 3 kW on the other bands |
| Power supply | Direct at the base, DC grounded |
| Connector | UHF female, PTFE insulator, gold-plated contact |
| Total height / whip | 8.97 m / 8.4 m |
| Radials | 4 horizontal, about 2.7 m each, with DBFC system |
| Materials | AW6063-T66, fibreglass, brass, PTFE; AISI 304/316 stainless hardware |
| Mounting mast | Diameter 40–54 mm |
| Wind area | 0.42 m² |
| Wind resistance without ice | 130 km/h, guyed only |
| Net / packed weight | 8.5 kg / 9.95 kg |
| Packaging | 14 × 14 × 145 cm |
| Origin | Italy |
Manufacturer's SWR diagrams
Typical measurements with the antenna 8 metres above ground; installation may affect the results.
HamRadioShop | GRAZIOLI ANTENNE | Multiband verticals Made in Italy
