│ ┌─────────────────────────────┤
│ OPERATING FREQUENCY........... {MHz} 435 │ │
│ REFLECTOR LENGTH.............. { m } .345678 │ FORWARD GAIN = 11.34 dBi │
│ FED ELEMENT LENGTH............ { m } .322834 │ │
│ REFLECTOR SPACING............. { m } .097670 │ F to B RATIO = 35.08 dB │
│ #of DIRECTORS 5 Rfl EL DIAM {mm } 5 │ │
│ D 1 SP { m } .078809 D 1 LEN { m } .318990 │ INPUT IMPEDANCE = │
│ D 2 SP { m } .097462 D 2 LEN { m } .291958 │ 48.7 +j 0.0 Ohms │
│ D 3 SP { m } .120921 D 3 LEN { m } .298453 │ │
│ D 4 SP { m } .152478 D 4 LEN { m } .284187 │ ARRAY LENGTH = 0.74 m │
│ D 5 SP { m } .191322 D 5 LEN { m } .264914 │ │
│ ┌─────────────────────────────┤
│ OPERATING FREQUENCY........... {MHz} 435 │ │
│ REFLECTOR LENGTH.............. { m } .346 │ FORWARD GAIN = 11.42 dBi │
│ FED ELEMENT LENGTH............ { m } .33 │ │
│ REFLECTOR SPACING............. { m } .087000 │ F to B RATIO = 65.92 dB │
│ #of DIRECTORS 7 Rfl EL DIAM {mm } 6 │ │
│ D 1 SP { m } .070000 D 1 LEN { m } .313 │ INPUT IMPEDANCE = │
│ D 2 SP { m } .081000 D 2 LEN { m } .296 │ 88.1 +j 31.3 Ohms │
│ D 3 SP { m } .096000 D 3 LEN { m } .29 │ │
│ D 4 SP { m } .112 D 4 LEN { m } .282 │ ARRAY LENGTH = 0.91 m │
│ D 5 SP { m } .13 D 5 LEN { m } .258 │ │
│ D 6 SP { m } .155 D 6 LEN { m } .255 └─ F4: Optimize ───── F6: BW ─┤
│ D 7 SP { m } .18 D 7 LEN { m } .236 ┌─ F3: Plot ───── F5: Mode M ─┤
Bend Dia: 50mm (Center to center). Folded dipole. Material 6mm Al rod.
Completely wrong, as already mentioned in the contrubtions to your other thread.Since 88.1, so I am planning to use a 4:1 balun
│ ┌─────────────────────────────┤
│ OPERATING FREQUENCY........... {MHz} 435 │ │
│ REFLECTOR LENGTH.............. { m } .346 │ FORWARD GAIN = 11.42 dBi │
│ FED ELEMENT LENGTH............ { m } .33 │ │
│ REFLECTOR SPACING............. { m } .087000 │ F to B RATIO = 65.92 dB │
│ #of DIRECTORS 7 Rfl EL DIAM {mm } 6 │ │
│ D 1 SP { m } .070000 D 1 LEN { m } .313 │ INPUT IMPEDANCE = │
│ D 2 SP { m } .081000 D 2 LEN { m } .296 │ 88.1 +j 31.3 Ohms │
│ D 3 SP { m } .096000 D 3 LEN { m } .29 │ │
│ D 4 SP { m } .112 D 4 LEN { m } .282 │ ARRAY LENGTH = 0.91 m │
│ D 5 SP { m } .13 D 5 LEN { m } .258 │ │
│ D 6 SP { m } .155 D 6 LEN { m } .255 └─ F4: Optimize ───── F6: BW ─┤
│ D 7 SP { m } .18 D 7 LEN { m } .236 ┌─ F3: Plot ───── F5: Mode M ─┤
Because they are wrong!aq_mishu said:btw, why then some sites said that a simple dipole has impedence of 50ohm??
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