DX Engineering 300 ohm Ladder Line

DX Engineering 300 ohm Ladder Line is rated for over full legal power and is super strong, featuring two 18-gauge conductors consisting of 19 strands of copper-clad steel wire. Also known as window line, this is the same high-quality ladder line used in DX Engineering multi-band dipole antennas. DX Engineering 300 ohm Ladder Line has 272 ohm nominal impedance and an 88 percent velocity factor.

DXE-LL300-1C - 100 Foot length
DXE-LL300-2C - 200 Foot length
DXE-LL300-3C - 300 Foot length
DXE-LL300-4C - 400 Foot length
DXE-LL300-5C - 500 Foot length

Following are typical loss measurements made on a randomly selected 100 foot length of DX Engineering LL300 300 ohm ladder line.

MHz    Dry loss dB      Damp loss dB
   1       -0.240
   2       -0.320
   4       -0.415
   6       -0.437
   8       -0.459              -1.410
  10      -0.485
  14      -0.515
  18      -0.646
  22      -0.568              -1.530
  26      -0.625
  30      -0.668
  35      -0.773
  40      -0.640
  50      -0.690              -2.150

The "damp loss" measurements are only a point of interest made by merely spraying the line with a mist which dried rapidly after application. These typical figures illustrate the effect of water on ladder line. These losses return to normal dry figures as the moisture evaporates.