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- YBN 50-2wA 1.2 m 50 MHz 2 ele. with split Dipole for direct 50 ohms feed to be very uncritical for home building. A wideband version with hugh bandwidth.
A project for an afternoon ...
Antenna View
- YBN 50-5wrc vsA 4 m 50 MHz 5 ele. with hairpin match and split Dipole to be very uncritical for home building.
Elevation Plot
- YBN 50-5wA 4.4 m 50 MHz 5 ele. derived from the 2 m 5 ele with split Dipole to be very uncritical for home building. A wideband version with hugh bandwidth and yet high F/B.
Elevation Plot
- YBN 50-7mzcA 7.96 m 50 MHz 7 ele. with hairpin match and split Dipole to be very uncritical for home building.
Elevation Plot
- YBN 50-9mA 13 m 50 MHz 9 ele. derived from the 2 m GTV 2-9m but with split Dipole to be very uncritical for home building.
Elevation Plot
- GTV 50-3wA 1.8 m 50 MHz 3 ele. Yagi. A wideband version with much bandwidth and yet relatively high F/B for its size
Elevation Plot
- GTV 50-6mA 6.8 m 50 MHz 6 ele. Yagi with very high F/B for its size
Elevation Plot
- GTV 50-7n mk2Revision of the very directive 8.6 m 50 MHz 7 ele. with bent Driver. Carefully tuned for some bandwidth and high F/R now - all without loosing on gain.
Elevation Plot
- GTV 50-8w10.7 m wide-band, still good G/T and nice F/B version of the low impedance, yet 50 ohms direct feed Low Noise Yagi with bent DE introduced in Dubus 1/2013
Elevation Plot
- GTV 50-10LT14.6 m very low noise, high G/T version of the low impedance, yet 50 ohms direct feed Low Noise Yagi with bent DE introduced in Dubus 1/2013
Elevation Plot
- YBN 50-2w
- • 70 MHz
- • 144 MHz
- • 432 MHz
• Antennas
Performance Data and Geometry Pattern and VSWR Download as File StackingYBN 50-9m Yagi with Straight Dipole
EME + SSB modest bandwidth version ... strictly G/T breeding with a straight dipole
This Yagi is a twin to the GTV 2-9m designed for those who yield to avoid producing and trimming a bent dipole. With rearranged driver cell this Yagi's performance is only a fraction away from the GTV version by means of losing just a marginal bit on the backlobes: F/B and F/R are down by approximately 1.5 dB compared to the GTV 2-9m.
This medium length Yagi is balanced between gain and Antenna Temperature. Design date of issue: 2019.02.25
YBN 50-9m built by Gustavo, CE4WJK
Current Profile
Performance Data
Gain vs. isotr. Rad. 14.0 dBi Gain vs. Dipole 11.8 dBD -3 dB E-plane 38.4 deg. -3 dB H-plane 42.8 deg. F/B -26.2 dB F/R -24.5 dB Impedance 50 ohms VSWR Band Width 1.12:1 * Mechan. Length 12907 mm Electr. Length 2.16 λ Stacking Dist. h-pol. top-to-bottom 8.19 m side-by-side 9.09 m *) as in VE7BQH G/T table = at 50.30 MHz
Geometry
This design has been viewed how often after the first built has been published in Mar. 2019?
Pattern and VSWR Plots
Current distribution Elevation and Azimuth plot at 50.1 MHz
RL and SWR plot - simulated
Stacking
Stacking Dist. DL6WU Formula H-plane 8.19 m = 26.88 ft E-plane 9.09 m = 29.82 ft
73, Hartmut, DG7YBN