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Harbour Braided Wire Separator

SFL Rock SStable® Spiral Flex Coaxial Cable

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More Flexible And Supple Construction

Harbour’s SFL Spiral Flex™ coaxial cables, more flexible and supple versions of the industry standard SS Spiral Strip constructions, are constructed with a specially formulated jacket compound and stranded silver plated copper center conductors. These 50 Ohm versions exhibit VSWR levels that meet or exceed similar size flexible constructions, and just like their SS cable counterparts, offer excellent shielding effectiveness with readily available connectors.

The solid light blue flexible 105°C jackets offer excellent braid-to-jacket adhesion and electrical stability during usage.

Although the insertion loss is slightly higher than their SS cable counterparts, SFL attenuation levels through 18 GHz are substantially lower than comparable MIL-DTL-17 constructions.

   Download physical and electrical characteristics for these products.  

   Download Attenuation Stability Test Procedure.


Attenuation Calculator
Instantly calculate attenuation values using our online tool

Catalog Download
Download our latest RF Microwave Coaxial Cable catalog (PDF)


Technical Info
Browse our latest RF Microwave Coaxial Cable technical documents

Interactive Aircraft
Electrical Wiring Interconnect Systems Applications in commercial aircraft.

Attenuation Calculator

Although typical and maximum attenuation values at discrete frequencies may be found in Harbour's online catalog, this Attenuator Calculator makes it easy to compare multiple items at any operating frequency. Just type a frequency in MHz (for instance 18 GHz = 18,000 MHz) to calculate and compare typical attenuation values.

Cable Outer
Maximum Frequency
(dB / 100 ft.)
LL120 .120 18,000
LL160 .160 18,000
LL142 .195 18,000
LL235 .235 18,000
LL335/LL335i .335/.300 18,000
LL142STR .195 18,000
LL270STR .270 18,000
LL450STR .450 13,000
LL480STR .480 11,000
SB316 .098 18,000
SB142/SB142i .195/.172 18,000
SB400 .195 18,000
SB304 .280 18,000
SB393 .390 11,000
SS405 .104 18,000
SS402 .163 18,000
M17/93-RG178 .071 3,000
M17/113-RG316 .098 3,000
M17/128-RG400 .195 12,400
M17/60-RG142 .195 12,400
M17/127-RG393 .390 11,000
SFL405-105Flex .115 18,000
SFL402-105Flex .180 18,000
LLS160 .160 18,000
LLS160-40GHz .160 40,000
LLS195 .195 18,000
LLS195STR .195 18,000
LLS290 .290 18,000
LL142-26GHz .195 26,000
SB142-26GHz .195 26,000
SS402-31GHz .163 31,000
SS405-40GHz .104 40,000

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