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    Harbour MIL-DTL-17 Coaxial Cables 航太軍規鐵氟龍耐高溫同軸電纜
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    HARBOUR-MIL-DTL-17

    Harbour MIL-DTL-17 QPL, RF Microwave Coaxial Cables 50 Ohm
    RG型 高射頻航太軍規鐵氟龍鍍銀耐高溫同軸電纜

    QPL Approved “RG” Constructions

    M17/60-RG142, M17/93-RG178 , M17/94-RG179, M17/95-RG180 , M17/111-RG303,  M17/112-RG304, M17/113-RG316 , M17/127-RG393, M17/128-RG400, M17/131-RG403, RG-178 M17/152-00001 Double Shield RG-316, M17/176-00002 Twinax, RG187 A/U, RG188 A/U, RG195 A/U , RG196 A/U, Tape Wrapped Jacket

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    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. For complete individual slant sheets, go to the Defense Supply Center Columbus (DSCC) website.

     

    The Importance of VSWR Sweep Testing

     

    When selecting a 50 Ohm coaxial cable, constructions with VSWR requirements are highly recommended. Manufacturing and sweep testing cables with concern for VSWR ensures a quality cable free of spikes over the frequency range referenced on the slant sheet.

    Precision PTFE Dielectrics Used
     All of the PTFE dielectric coax cables listed are high temperature, high performance constructions exhibiting high dielectric strength and low capacitance in proportion to the cable’s dielectric constant. Harbour manufactures all PTFE dielectric cable constructions with tolerances tighter than the MIL-DTL-17 specification to ensure uniformity of electrical characteristics, especially impedance, attenuation, and VSWR.  

    Constructions with PTFE Tape Wrapped Jackets

     Harbour manufactures PTFE tape wrapped cables - specifically RG187 A/U, RG188 A/U, RG195 A/U, and RG196 A/U - in accordance with a previous revision of the MIL-DTL-17 specification. These constructions can withstand operating temperatures up to 250 º versus 200º C for FEP jacketed cables. PTFE tape wrapped cables are generally more flexible than their FEP jacketed counterpart. Alternative 250º constructions are also available with PFA jackets.
      M17/176-00001 Twinaxial Data Bus Cable
      Although not a coaxial construction, the MIL-DTL-17 specification includes this twinaxial cable with a controlled impedance of 77 Ohms.
     

    "Maximum frequencies" are those as referenced on individual slant sheets of the MIL-DTL-17 specification. No values are given above 400MHz for unswept constructions because MIL-DTL-17 specification recommends these cables should not be used above this frequency.
    M17/60 RG142, M17/93 RG178 , M17/94 RG179, M17/95 RG180 , M17/111 RG303,  M17/112 RG304, M17/113-RG316 , M17/127 RG393, M17/128 RG400, M17/131 RG403, RG178 M17/152-00001, Double Shield RG316, M17/176-00002 Twinax, RG187 A/U, RG188 A/U, RG195 A/U , RG196 A/U, Tape Wrapped Jacket

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