On Thu, 03 Nov 2005 15:13:53 -0800, Jim Kelley
wrote:
use an array of non-coherent sources

EZNEC+ ver. 4.0

Dipole in Ring of Rnd Sources 11/3/2005 5:39:03 PM

--------------- LOAD DATA ---------------

Frequency = 70 MHz

Load 1 Voltage = 0.002611 V. at -33.23 deg.
Current = 3.627E-05 A. at -33.23 deg.
Impedance = 72 + J 0 ohms
Power = 9.47E-08 watts

Total applied power = 1364 watts

Total load power = 9.47E-08 watts
Total load loss = 0.0 dB

then moved quarterwave:

EZNEC+ ver. 4.0

Dipole in Ring of Rnd Sources 11/3/2005 5:41:17 PM

--------------- LOAD DATA ---------------

Frequency = 70 MHz

Load 1 Voltage = 0.00676 V. at -110.1 deg.
Current = 9.389E-05 A. at -110.1 deg.
Impedance = 72 + J 0 ohms
Power = 6.348E-07 watts

Total applied power = 1364 watts

Total load power = 6.348E-07 watts
Total load loss = 0.0 dB

then moved backwards a quarterwave

EZNEC+ ver. 4.0

Dipole in Ring of Rnd Sources 11/3/2005 5:44:52 PM

--------------- LOAD DATA ---------------

Frequency = 70 MHz

Load 1 Voltage = 0.004604 V. at 29.97 deg.
Current = 6.395E-05 A. at 29.97 deg.
Impedance = 72 + J 0 ohms
Power = 2.944E-07 watts

Total applied power = 1364 watts

Total load power = 2.944E-07 watts
Total load loss = 0.0 dB

EZNEC+ ver. 4.0

Yagi in Ring of Rnd Sources 11/3/2005 5:48:14 PM

--------------- LOAD DATA ---------------

Frequency = 70 MHz

Load 1 Voltage = 0.07004 V. at 66.62 deg.
Current = 0.005837 A. at 66.62 deg.
Impedance = 12 + J 0 ohms
Power = 0.0004088 watts

Total applied power = 1364 watts

Total load power = 0.0004088 watts
Total load loss = 0.0 dB

moved back halfwave:

EZNEC+ ver. 4.0

Yagi in Ring of Rnd Sources 11/3/2005 5:51:43 PM

--------------- LOAD DATA ---------------

Frequency = 70 MHz

Load 1 Voltage = 0.09133 V. at -53.63 deg.
Current = 0.007611 A. at -53.63 deg.
Impedance = 12 + J 0 ohms
Power = 0.0006952 watts

Total applied power = 1364 watts

Total load power = 0.0006952 watts
Total load loss = 0.0 dB

(and really see what's going on)

Hmmm, at least 1000 times more response... so what's going on? (aside
from a possibly poor implementation of random). Trying to refine the
sources table with tighter random assignments is positively brutal
under EZNEC's primitive (read no) handling of columnar data.

73's
Richard Clark, KB7QHC