The Grazioli MV7 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 remaining radiating part, which is approximately 2.2 metres high, consists of two telescopic tubes designed to offer minimal wind resistance, is adjustable, design for perfect calibration across the entire 40 m 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 aluminium 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 aluminium radial, form a single counterweight of approximately 1/4 wave at 40 metres, 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.

NOTE:
If used in very windy areas, bracing with non-conductive cables using the supplied fifth wheel is recommended.