Messi & Paoloni STEALTH-FLEX 7 /.300"

Low-loss 50 ohm coax with twin reactive braids, full copper foil screening and a matte military green jacket for demanding portable and field installations.

Choose your cable length and connector combination and let us build the lead for you.

Messi & Paoloni STEALTH-FLEX 7 /.300" is a rugged low-loss 50 ohm coaxial cable developed for installations where both RF performance and repeated physical handling matter.

Its distinctive construction uses a 19-strand copper centre conductor, physically foamed polyethylene dielectric, full copper foil screen and two separate reactive braids. This gives the cable excellent screening performance while helping it withstand repeated winding, unwinding and deployment in the field.

The outside is finished with a matte military green PVC jacket, helping the cable blend into grass, vegetation and other outdoor environments where a conventional black cable may be more visually obvious.

Lower Loss than RG-8X and Traditional RG-213/U

STEALTH-FLEX 7 offers considerably lower attenuation than typical RG-8X, making it a major performance upgrade for operators who still want a relatively compact and flexible cable.

More unusually, its attenuation also compares extremely well with traditional RG-213/U. Using representative commercial RG-8X and RG-213/U figures, STEALTH-FLEX 7 has lower loss at 50, 100 and 400MHz while measuring only 7.65mm in diameter, compared with approximately 10.3mm for RG-213/U.

This makes STEALTH-FLEX 7 particularly attractive where you want performance approaching or exceeding much bulkier traditional coax without having to route a full-size 10mm cable.

RG cable specifications vary between manufacturers. RG-8X and RG-213/U figures above are representative examples intended to illustrate the performance difference rather than define every cable sold under those designations.

Designed for Repeated Field Deployment

M&P developed STEALTH-FLEX 7 around the mechanical demands of portable and field operation. The twin braid construction is intended to cope with the repeated winding and unwinding that a permanently installed cable would rarely experience.

The first braid provides approximately 83% coverage and the second approximately 80% coverage, with 144 copper-clad aluminium wires in each layer. Beneath them is a 100% copper foil screen with a protective PE layer.

This combination provides both mechanical reinforcement and excellent protection against unwanted electromagnetic interference while keeping the cable reasonably flexible.

Low-Visibility Green Jacket

The matte green outer jacket is not simply cosmetic. It is intended to make the cable less visually conspicuous when laid across grass, woodland or other outdoor terrain.

M&P positions STEALTH-FLEX 7 for demanding portable, tactical and professional communications applications where cable may need to be deployed some distance between the radio equipment and antenna.

The green jacket also makes STEALTH-FLEX 7 a very practical choice for amateur radio installations where coax needs to cross a garden without standing out visually.

Where STEALTH-FLEX 7 Works Best

M&P Cable Length Guidance

M&P provides the following guidance for transmitting applications. These figures are recommendations for selecting a suitable cable size rather than absolute cable length limits.

Cable Construction

• 19 x 0.38mm stranded copper inner conductor
• 1.9mm overall inner conductor diameter
• Triple-layer physically foamed polyethylene dielectric
• 100% copper foil screen with protective PE layer
• First braid with 144 copper-clad aluminium wires and approximately 83% coverage
• Second braid with 144 copper-clad aluminium wires and approximately 80% coverage
• Matte military green PVC outer jacket
• 7.65mm overall cable diameter
• 83% velocity factor

STEALTH-FLEX 7 uses a PVC outer jacket. M&P does not specify this model as a direct-burial cable. For permanent underground installation, use a cable specifically designed and documented for direct burial.

STEALTH-FLEX 7 Datasheet