420300
HiQuality 300 ohm, foam filled, ribbon, TV twin-lead. 0.88% velocity factor

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BUXCOMM Part Number: 420300
High Quality, 300 ohm, foam filled,ribbon (HDTVtwin-lead).
Velocity Factor, 0.88 %
7 Conductors equal AWG (Strand): 20
Nominal Impedance:300 ohms
Important Note:
Contrary to "old-dummy-tales," Foam Filled twin-lead composition will NOT
effect the radiationcharacteristicsof this twin-lead. PE foam will not absorb moisture.
The foam-filler improvesvelocity factor to .88 for increased efficiency, and reduces the losses in this wire. Employed in folded-dipole, and compact dipole antennas.
Foam-filled , 300 ohm twin-leadis also used asa high-qualityfeedline, lead-in, forHDTV antennas.

BUXCOMM Part Number: 420300

Conductor AWG (Strand): 20 (7/28)
Attenuation: MHz db/100 FT

100 1.2
300 2.6
500 3.6
700 4.3
900 4.8

Nominal Impedance (in ohms)  300
RF Velocity Factor free space: 0.88%
Nominal temperature range: -20C to +60C
Nominal outside diameter:  .145 x .400

Jacket cover is resistant to Ultraviolet Rays
Foam PE will not absorb moisture


  • 9939 Units in Stock

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