Signal Cable #5216780

HS (High Strength) Coaxial CableHarbour Industries HS (High Strength) coaxial cables are constructed for applications where breakage or fatigue is a concern. Frequently, installation or termination and severe vibration of smaller size MIL-DTL-17 coaxial cables result in stressing of individual strands of the outer braid or the center conductor. To correct this situation, Harbours High Strength HIS cables are configured with conductors exhibiting higher break strengths than standard silver plated copper. Accordingly, a flex life 25 times greater than comparable RG constructions can be expected.

TRX (Triaxial) Coaxial CableISOLATION OF THE SHIELDS AND IMPROVED SHIELDING Periodically, isolation of shields in a coaxial cable is an important consideration. Harbour has constructed a number of TRX (Triaxial) cables, expanding the product line offered in the MIL-DTL-17 specification. (Currently, the MIL-DTL-17 specification defines only one triaxial M17131-RG403, a triaxial version of M1793-RG178.) With an existing double braided construction, an interlayer of insulation is used between the two braids. With a single braided cable, an interlayer and a second braid is used. Complete isolation between the braids is realized, in addition to achieving a more effective shield configuration.

UNIQUE CABLE CONFIGURATION The braid configuration and the expanded PTFE dielectrics of the LL cable constructions contribute to lower attenuation levels at higher frequencies, while providing shielding effectiveness levels that exceed those of flexible MIL-DTL-17 cables. Flat strips of silver plated copper are braided over the dielectric core with an intermediate metalized polyester or polyimide layer, and an outer round wire braid.

SB (Strip Braid) Coaxial CableHarbours SB coaxial cables are configured for low attenuation at high frequencies, while using similar dimensions to MIL-DTL-17 constructions. Standard connectors may frequently be used, thereby avoiding tooling charges. Solid PTFE dielectrics are manufactured with tight tolerances to ensure impedance uniformity and to effect VSWR levels that meet or exceed MIL-DTL-17 specifications for cables of comparable size. The strip braid configuration is by far the most effective means of lowering attenuation levels of coaxial cable at high frequencies while providing shielding effectiveness levels that exceed those of flexible MIL-DTL-17 cables. Flat strips of silver plated copper are braided over the dielectric core, frequently with an intermediate metallized mylar or kapton layer, and an outer round wire braid. This shielding technique provides superior shielding effectiveness and lower transfer impedance than any standard double braided mil-spec construction.

Coaxial CablesQPL APPROVED RG CONSTRUCTIONS Harbour Industries is a QPL approved manufacturer of high temperature, high performance coaxial cables supplied in exact accordance with the MIL-DTL-17 specification. The information referenced has been taken from the MIL-DTL-17 "slant sheets" which define complete physical and electrical characteristics for each MIL-DTL-17 part number including dimensional parameters, dielectric materials, shield constructions, VSWR, and maximum attenuation over various frequency ranges.

SS Rock SStable Spiral Strip Coaxial CableA NEW INDUSTRY STANDARD FOR ATTENUATION STABILITY Harbours SS coaxial cables are flexible alternatives to semi-rigid coax, and the unique shielding configuration offers a cost effective, low attenuation option. The use of stripround braid composite shields results in low transfer impedance levels. The 50 Ohm constructions exhibit the same attenuation characteristics as the M17130-RG402 and M17133-RG405 cables. All SS cables have VSWR characteristics that meet or exceed similar size flexible constructions. SS402 and SS405 have been configured with diameters over the outer braids of .141 and 086 respectively, so standard SMA connectors may be used.