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LMR-400 Datasheet, PDF (1/2 Pages) Pasternack Enterprises, Inc. – Flexible Low Loss Communications Coax
TIMES MICROWAVE SYSTEMS
LMR®-400
Flexible Low Loss Communications Coax
Ideal for…
• Drop-in replacement for RG-8/9913 Air-Dielectric type Cable
• Jumper Assemblies in Wireless Communications Systems
• Short Antenna Feeder runs
• Any application (e.g. WLL, GPS, LMR, WLAN, WISP, WiMax,
SCADA, Mobile Antennas) requiring an easily routed,
low loss RF cable
• LMR® 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.
• LMR®- 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.
• LMR®- 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.
• LMR®- 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.
• LMR®- PVC is designed for low loss general-purpose
applications and is somewhat more flexible
than the standard polyethylene jacketed LMR.
• LMR®- PVC-W is a white-jacketed version of LMR-
PVC for marine and other applications
where color compatibility is desired.
• Flexibility 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 performance.
• 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).
• Weatherability: LMR-400 cables designed for
outdoor exposure incorporate the best materials for UV
resistance and have life expectancy in excess of 20 years.
• Connectors:Awide 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 sizes.
• Cable Assemblies: All LMR-400 cable types are
available as pre-terminated cable assemblies.Refer to
the section on FlexTech for further details.
Part Description
Part Number
Application
Jacket Color
LMR-400
Outdoor
PE Black
LMR-400-DB
Outdoor/Watertight PE Black
LMR-400-FR Indoor/Outdoor Riser CMR FRPE Black
LMR-400-FR-PVC Indoor/Outdoor Riser CMR FRPVC Black
LMR-400-PVC
General Purpose PVC Black
LMR-400-PVC-W General Purpose PVC White
Stock
Code
54001
54091
54030
54073
54218
54204
Construction Specifications
Description
Material
In.
(mm)
Inner Conductor
Dielectric
Outer Conductor
Overall Braid
Jacket
Solid BCCAI
Foam PE
Aluminum Tape
Tinned Copper
(see table above)
0.108 (2.74)
0.285 (7.24)
0.291 (7.39)
0.320 (8.13)
0.405 (10.29)
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(800) TMS-COAX • www.timesmicrowave.com
TIMES MICROWAVE SYSTEMS
Mechanical Specifications
Performance Property
Units
US
Bend Radius: installation
Bend Radius: repeated
Bending Moment
Weight
Tensile Strength
Flat Plate Crush
in. (mm)
in. (mm)
ft-lb (N-m)
lb/ft (kg/m)
lb (kg)
lb/in. (kg/mm)
1.00
4.0
0.5
0.068
160
40
(metric)
(25.4)
(101.6)
(0.68)
(0.10)
(72.6)
(0.71)
Environmental Specifications
Performance Property
0F
oC
Installation Temperature Range
-40/+185 -40/+85
Storage Temperature Range
-94/+185 -70/+85
Operating Temperature Range
-40/+185 -40/+85
Electrical Specifications
Performance Property
Units
US (metric)
Velocity of Propagation
%
85
Dielectric Constant
NA
1.38
Time Delay
nS/ft (nS/m)
1.20
(3.92)
Impedance
ohms
50
Capacitance
pF/ft (pF/m)
23.9 (78.4)
Inductance
uH/ft (uH/m)
0.060
(0.20)
Shielding Effectiveness
dB
>90
DC Resistance
Inner Conductor
ohms/1000ft (/km) 1.39 (4.6)
Outer Conductor
ohms/1000ft (/km) 1.65 (5.4)
Voltage Withstand
Volts DC
2500
Jacket Spark
Volts RMS
8000
Peak Power
kW
16
Attenuation vs. Frequency (typical)
10.0
1.0
0.1
10
100
Frequency (MHz)
1,000
10,000
Frequency (MHz)
Attenuation dB/100 ft
Attenuation dB/100 m
Avg. Power kW
30 50 150 220 450 900 1500 1800 2000 2500 5800
0.7 0.9 1.5 1.9 2.7 3.9 5.1 5.7 6.0 6.8 10.8
2.2 2.9 5.0 6.1 8.9 12.8 16.8 18.6 19.6 22.2 35.5
3.33 2.57 1.47 1.20 0.83 0.58 0.44 0.40 0.37 0.33 0.21
Calculate Attenuation =
(0.122290) • FMHz + (0.000260) • FMHz (interactive calculator available at http://www.timesmicrowave.com/cable_calculators)
Attenuation:
VSWR=1.0 ; Ambient = +25°C (77°F)
Power:
VSWR=1.0; Ambient = +40°C; Inner Conductor = 100°C (212°F); Sea Level; dry air; atmospheric pressure; no solar loading
(800) TMS-COAX • www.timesmicrowave.com
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