Signal Loss, Specifications and Composition of LMR-100, LMR-200 and LMR-400 Compared

Attenuation is Loss of Signal in the Cable

Double shielding benefits: LMR-100, LMR-200 and LMR-400

The double shielded composition of LMR-100, LMR-200 and LMR-400 enables far better preservation of signal strength than the single-shielded coax types that they are most typically compared to (RG-174, RG-58 as examples):  The LMR-100, 200 and 400 coax types have in-built shielding from both an aluminum layer providing 100% coverage and a denser copper braiding layer.  This combination of shield layers leads to a minimal loss cable and also one that effectively blocks out external interference.

Attenuation (Loss of Signal): How do LMR-100, 200 & 400 compare?

As classified as low loss, you can probably imagine they all fare well in this category. But for further detail, please read on:

* For detailed information on the terms dBi, dB, dBm, and dB(mW) * 

At 900 MHz

• LMR-100 = 0.75 dB/m. (0.23 dB/ft.)
• LMR-200 = 0.33 dB/m. (0.09 dB/ft.)
• LMR-400 = 0.13 dB/m. (0.039 dB/ft.)

At 2400 MHz

• LMR-100 = 1.28 dB/m. (0.39 dB/ft.)
• LMR-200 = 0.54 dB/m. (0.12 dB/ft.)
• LMR-400 = 0.22 dB/m. (0.066 dB/ft.)

At 3500 MHz

• LMR-100 = 1.58 dB/m. (0.48 dB/ft.)
• LMR-200 = 0.67 dB/m. (0.21 dB/ft.)
• LMR-400 = 0.27 dB/m. (0.081 db/ft.)

At 5800 MHz

• LMR-100: 2.10 dB/m. (0.64 dB/ft.)
• LMR-200: 0.87 dB/m. (0.264 dB/ft.)
• LMR-400: 0.36 dB/m. (0.108 dB/ft.)

Composition

Taking a look into the technical features (composition) of the coaxial cables, we will summarize conclusions about how they contribute to the user benefits (advantages):

1. Copper clad-steel conductor - an excellent carrier of radio frequency signal, ideal for almost any cabling challenge
2. Dielectric PE foam - a superior dampener of loss of electromagnetic radiation
3. Double shielding - aluminium sheet plus copper braiding for maximum preservation of signal strength across length of cable
4. Outer Jacket - a robust finish, ideal for maintaining functional excellence in physically challenging environments

1. Inner conductor

• LMR-100 conductor: approximately 0.46 mm (0.02 inches) in diameter
• LMR-200 conductor: approximately 1.42 mm (0.06 inches) in diameter
• LMR-400 conductor: above 2.74 mm (0.11 inches) in diameter

2. Dielectric foam diameter & material

• LMR-100 foam diameter: 1.52 mm (0.01 inches), Polyetylene foam
• LMR-200 foam diameter: 2.79 mm (0.001 inches), Polyethylene foam
• LMR-400 cable sheath: 7.24 mm, (0.29 inch) Polyethylene foam

3. Inner shield

• All copper braiding

4. Outer shield

• All aluminium layer

5. Outer cable sheath diameter, material & color

• LMR-100 cable sheath: approximate 2.79 mm (0.11 inches) diameter, Polyethylene black
• LMR-200 cable sheath: approximately 6.1 mm (0.24 inches) in diameter, Polyethylene, black
• LMR-400 cable sheath: above 10.29 mm (0.41 inches) in diameter, Thermoplastic elastomer, black

Other qualities which the LMR-100, LMR-200 & LMR-400 have...

Temperature stability = operable unto 85-degrees C maximum temperature and a minimum of -40-degrees C. Hot or cold, your LMR coaxial cables are adept at doing well. Bending radius = the LMR-100, LMR-200 and LMR-400 have respective bend radii of: 6.4 mm (0.25 inches), 12.7 mm (0.5 inches) and 25.4 mm (1.0 inches). Agile, without question. Weight = as all-rounders, consideration has been applied to their overall weight for ease of installation. The weights are as follows: LMR-100 0.02 kg/m (0.013 lbs/ft), LMR-200 0.03 kg/m (0.02 lbs/ft) and LMR-400 0.10 kg/m (0.068 lbs/ft) Each cable is made conscientiously without the use of halogens according to standard health and safety protocol.

LMR-100, LMR-200 & LMR-400 are double-shielded, low signal-loss coaxial cable types for antenna cables. As closely related "sister" coax types, they each share commonly associated characteristics and possess comparable benefits. Their purpose is simply to convey radio frequency transmitted signals across physical distance, with minimal loss or interference. Here are some typical application scenarios:

• HDTV deployment,
• Broadband internet networks,
• CCTV,
• Video
• Radio
• Antenna runs
• Wireless assemblies
• WLAN
• GPS