g5rv.nec

zip contains tool for Antenna Modelling with examples

CM G5RV Multiband Antenna
CM Converted from AO to 4nec2 format on 22-apr-02
CE
GW	1	31	0	-51 ft	0	0	51 ft	0	#12
GE	0
EX	0	1	16	00	1.0	0.0
'
GN	-1
FR	0	1	0	0	 14.2
EN

'Even using the recommended 34-foot open-wire matching section, the designer
'states that an antenna tuner is necessary for all-band operation.  AO confirms
'some pretty wild input impedances.  The radiation pattern on each band is just
'what you would expect for a center-fed wire of this length:  Dipole-like on the
'lower bands, cloverleaf-shaped on the higher.  All in all, this popular antenna
'does not seem to possess any special properties, operating like any ordinary,
'random-length center-fed wire.