High quality 300 ohm, foam filled, ribbon, HD TV twin-lead.

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BUXCOMM Part Number: 420300
High Quality, 300 ohm, foam filled,ribbon (HDTVtwin-lead).
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 radiation charactics of this twin-lead. PE foam will not absorb moisture.
The foam-filler improvesvolicity factor, effeciency, 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: .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
Foam PE does not melt below 135 degrees F*

  • 9942 Units in Stock

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