Flexible Low Loss Communications Coax
standard is a UV Resistant
Polyethylene jacketed cable designed for 20-year service outdoor use.
The bending and handling characteristics are significantly better than
air-dielectric and corrugated hard-line cables.
DB is identical to standard
LMR plus has the advantage of being watertight. The addition of
waterproofing compound in and around the foil/braid insures continuous
reliable service should the jacket be inadvertently damaged during
installation or in the future.
FR is a non-halogen
(non-toxic), low smoke, fire retardant cable designed for in-building
runs that can be routed anywhere except air handling plenums. LMR-FR is
UL/NEC & CSA rated‘CMR’ and ‘FT4’ respectively, meets FAA FAR25
requirements and is MSHA-P for mining applications.
FR-PVC is a general-purpose
indoor cable and has a UL/NEC & CSA rating of ‘CMR’ and
‘FT4’respectively. It is less expensive than LMR-FR, however it emits
toxic fumes (HCL) and greater smoke density when burned.
PVC is designed for low loss
general-purpose applications and is somewhat more flexible than the
standard polyethylene jacketed LMR.
PVC-W is a white-jacketed
version of LMRP V C f o r m a r i n e a n d o t h e r a p p l i c a t i
o n s where color compatibility is desired.
and bendability are hallmarks of
the LMR-400 cable design. The flexible outer conductor enables the
tightest bend radius available for any cable of similar size and
• Low Loss is another
hallmark feature of LMR-400 Size for size LMR has the lowest loss of any
flexible cable and comparable loss to semirigid hard-line cables.
• RF Shielding
is 50 dB greater than typical single
shielded coax (40 dB). The multi-ply bonded foil outer
conductor is rated conservatively at > 90 dB (i.e. >180
dB between two adjacent cables).
LMR-400 cables designed for
outdoor exposure incorporate the best materials for UV
resistance and have life expectancy in excess of 20
A wide variety of connectors are
available for LMR-400 cable, including all common interface types,
reverse polarity, and a choice of solder or non-solder center pins. Most
LMR connectors employ crimp outer attachment using standard hex crimp
• Cable Assemblies:
All LMR-400 cable types are
available as pre-terminated cable assemblies. Refer to the section on
FlexTech for further details.