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- Trapped 160/80/40 meter dipole -

2006.10.28 Trying to calculate a multiband dipole using trapps. The information about making the trapps is found in the help-file of the exelent software 'CoaxTrap' by author VE6YP. Software is to be found @ xxxxxxx

The dipole is made of Swedish military telephone wire 'DL1000' - I calculate the wave-speed factor to be about 0.92. The coax trapps is made on a 50mm PVC tube using RG58/U with capacitance op 95pF/meter and with the o/d of 5mm.

Dipol layout (One side)

- Technical data -

SPECIFICATIONS
========================================

(Theoretical/calculation with wave-speed factor 0.92)
(One dipole half)
A 40 meter section .........  9,76 meter
A+B 80 meter sections ...... 18,46 meter
A+B+C 160 meter sections ... 36,80 meter

Manufactory ................ Homebrew

40 meter trap calculation

80 meter trap calculation

RadioWorks 1:1 balun

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