Ham Radio Antenna

Trap Dipole 80/40m, 2.5sqmm x 103ft 7 & 21m low noise low TVI low Z twin feeder

Trap Dipole 80/40m, 2.5sqmm x 103ft 7 & 21m low noise low TVI low Z twin feeder
Trap Dipole 80/40m, 2.5sqmm x 103ft 7 & 21m low noise low TVI low Z twin feeder

Trap Dipole 80/40m, 2.5sqmm x 103ft 7 & 21m low noise low TVI low Z twin feeder
SPECTRUM LITE 80/40m TRAP DIPOLE 2.5square mm for regular duty. These dipoles mark the next evolution from the original W3DZZ trap dipoles. Then developed and had manufactured a new multistrand low impedance twin feeder, then design and construction of the Lite Traps without potting and with further modified top wire lengths. The low impedance twin feeder allows differential mode signals on receive and transmit to travel along the feeder without a measurable emitted electromagnetic field. On receive identical noise is picked up on both cores giving almost no differential feeder noise at the rig. It is so quiet using this feeder that at first you might think the aerial system is faulty.

This aerial has been proved to be 2 to 3 S-points quieter than G5RV aerials and others fed with 20m coax cable and/or 300 Ohm ribbon. This version is supplied with 2.5square mm cross sectional area multistrand top wires together with 21 metres of the 100 Ohm twin feeder, though greater lengths can be supplied if required. Otherwise you can use a balanced ATU such as the MFJ or the old KW Z-Match or SEM EZ Tune.

The endorsement attached is typical of users of the LTD80/40m trap dipole. Experience proves it to be typically 2 S-points better on receive and transmit than the comparable G5RV. The Inverted V configuration often has better perfomance day and night than a straight configuration but needs to take into account ground capacitance to the outer sections beyond the traps. Otherwise resonance will be below the 80m band and this is corrected by reducing the outers by about 24 each.

The item "Trap Dipole 80/40m, 2.5sqmm x 103ft 7 & 21m low noise low TVI low Z twin feeder" is in sale since Sunday, October 30, 2016. This item is in the category "Mobile Phones & Communication\Radio Communication Equipment\Antennas\Ham/Amateur Radio Antennas".

The seller is "antonnaile-0" and is located in Dorchester. This item can be shipped worldwide.
  • Frequency Band(s): HF
  • Country/Region of Manufacture: United Kingdom
  • Band: HF
  • Directivity: Bi-Directional
  • MPN: LTD80/40m 2.5sqmm
  • Brand: Spectrum Communications

Trap Dipole 80/40m, 2.5sqmm x 103ft 7 & 21m low noise low TVI low Z twin feeder