lmr400.pdf

LMR-400

Flexible Communications Cable

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) requiring

an easily routed, low loss RF cable

TIMES MICROWAVE SYSTEMS

A Smiths Industries company

358 Hall Ave., Wallingford, CT, 06492-5039 U.S.A.

Phone: 203-949-8400 Fax: 203-949-8423

solder) types, is available for LMR-400 cable as shown on

the next page.

• LMR-LLPL LowLoss Plenum: Refer to LMR In-Building

Communications catalog for details.

Mechanical Specifications

Minimum bend radius

1.0 in

25.4 mm

Bending moment

0.5 ft lbs

0.68 N-m

Weight

0.068 lbs/ft

0.10 kG/m

Tensile strength

160 lbs

72.6 kG

Flat plate crush

40 lb/in

0.71 g/mm

Construction Specifications

Part Designation

Material

Inches

Inner conductor

Solid BCCAl

0.108

2.74

• Flexible: With a 1-inch minimum bend radius, LMR-400

cable can be easily routed into and through tight spaces

without kinking. The LMR bonded-tape outer conductor pro-

vides superior flexibility and ease of bending compared to

corrugated copper or smooth wall copper hard-line cables.

• Low Loss: LMR-400 has the lowest loss of any RG8/

RG213 ‘type’ cable. This is achieved through the use of a

high velocity gas-injected closed cell foam dielectric and

bonded aluminum tape outer conductor.

• Weatherproof: The UV protected black polyethylene jacket

makes the cable rugged and resistant to the full range of

outdoor environments. The DB version of the cable includes

a water blocking material within the braid to protect the cable

from moisture ingress and eliminate any potential for corro-

sion in harsh environments or should the jacket become

damaged. Various jacket materials are available to address

other indoor and outdoor requirements.

• RF Shielding: The bonded aluminum tape outer conduc-

tor is overlapped to provide 100% coverage, resulting in

>90 dB RF shielding (>180 dB crosstalk) and excellent in-

terference immunity (ingress and egress).

• Phase Stability: The intimately bonded structure and foam

dielectric of LMR cables provide excellent phase stability

over temperature and with bending. The high velocity di-

electric results in superior phase stability as compared with

solid and air-spaced dielectric cables.

• Connectors and Assemblies: Times Microwave provides

FlexTech™ jumper cable assemblies fabricated with LMR-

400-DB watertight cable and a variety of connector inter-

face combinations (ref: FlexTech pages). Custom assem-

blies with phase matching, insertion loss matching, and other

special electrical or marking requirements can also be pro-

vided. A full range of connectors, including ‘EZ’ install (non-

Dielectric

Foam polyethylene

0.285

7.24

Outer conductor

Aluminum tape

0.291

7.39

Overall braid

Tinned copper

0.320

8.13

Standard jacket

Black polyethylene

0.405 10.29

Environmental Specifications

0 F

o C

Installation temperature range

-40/+185

-40/+85

Storage temperature range

-94/+185

-70/+85

Operating temperature range

-40/+185

-40/+85

Electrical Specifications

Cutoff frequency

16.2 GHz

Velocity of propagation

85%

Voltage withstand

2,500 VDC

Peak power

16 kW

DC resistance

Inner conductor, ohms

1.39/1,000'

4.56/km

Outer conductor, ohms

1.65 /1,000'

5.41/km

Jacket spark

8,000 VRMS

Impedance

50 ohms

Capacitance

23.9 pF/ft

78.40 pF/m

Inductance

0.060 uH/ft

0.20 uH/m

Shielding effectiveness

>90 dB

Phase stability

<10 ppm/ o C

Frequency Attenuation Avg. Power

MHz dB/100 ft dB/100 m kW

30 MHz 0.7 2.2 3.3

50 MHz 0.9 2.9 2.6

150 MHz 1.5 5.0 1.5

220 MHz 1.9 6.1 1.2

450 MHz 2.7 8.9 0.83

900 MHz 3.9 12.8 0.58

1,500 MHz 5.1 16.8 0.44

1,800 MHz 5.7 18.6 0.40

2,000 MHz 6.0 19.6 0.37

2,500 MHz 6.8 22.2 0.33

Add 15% to tabulated attenuation for LMR-UltraFlex

Calculate Attenuation = (0.12229) • FMHz + (0.00026) • FMHz

(interactive calculator available at http://www.timesmicrowave.com)

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

Part Description

Part Number

Designation

Jacket Stock Code

LMR-400

Standard outdoor cable Polyethylene 54001

LMR-400-DB

Watertight cable

Polyethylene 54091

LMR-400-FR

CMR/MPR (PCC-FT4) Non-Halogen 54030

LMR-400-PVC

Indoor cable (CATVR)

PVC

54073

LMR-400-UltraFlex

UltraFlex cable

TPE

54040

LMR-400-LLPL

CMP/MPP (PCC-FT6)

Plenum

54070

(800) TMS-COAX • www.timesmicrowave.com

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