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hfverticalmultibandtrapdual-band

W1FF Dual-Band

Dual-band vertical with trap

Source: Rothammel, Vol. 1, Ch. 19.5.5, p. 388
Input Parameters
MHz
MHz
Results
Top Section (high band λ/4)
5.035m
Bottom Section
3.996m
Total Height
9.032m
Trap Frequency
14.150MHz
Trap Inductance
3.00µH
Trap Capacitance
42.2pF
Diagram
50 Ω coax9.03 m9.03 m
Radiation Pattern
-3 dB-10 dB-20 dB0 dB0°90°180°270°Max: 0.0 dBi