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- YBN 3+7 SATA Satellite Yagi with 3 ele. for 145 MHz + 7 ele. for 435 MHz for handheld use
Elevation Plots
- YBN 2-2wA 50 ohms direct feed 2 ele. Yagi with high potential as broad beam Contest Stack.
See yourself and compare to DJ9HO Double Quads and 7ZB Oblongs. Full details on 2 and 4 Yagi stacks are given
3D Pattern of 4 x Stack
- YBN 2-5m (5-8)1.6 m high F/R, good willing 50 ohms direct feed Yagi as introduced with bent DE short version of the 5-8 in Dubus 4/2012
Elevation Plot
- YBN 2-6m 1.9 m long, good willing 50 ohms direct feed Yagi, related to the 5-8 project (same positions refl, dipole, D1, D2 ... same size folded dipole)
Elevation Plot
- YBN 2-7m 2.8 m high F/R, good willing 50 ohms direct feed Yagi, related to the 5-8 project (same positions refl, dipole, D1, D2 ... same size folded dipole)
Elevation Plot
- YBN 2-8m (5-8)3.6 m nice G/T, good willing 50 ohms direct feed Yagi as introduced with bent DE expanded version of the 5-8 in Dubus 4/2012
Actually it seems to be so good that DK7ZB decided to use it as draft for the 8 ele. OWM he just published.
Elevation Plot
- YBN 2-8mz3.6 m 25/28 ohms version of the YBN 2-8m
The stacked 25 ohms Yagi can easily be phased with 50 ohms coax cables
Elevation Plot
- YBN 2-9m4.5 m moderate band width, low Antenna Temperature, good willing 50 ohms direct feed Yagi - a straigh DE version twin to the GTV 2-9m
Elevation Plot
- YBN 2-10w (5-8)5 m wide band, good willing 50 ohms direct feed Yagi as introduced with straight DE expanded version of the 5-8 in Dubus 4/2012
Elevation Plot
- GTV 2-6m2.4 m moderate band width version of the low impedance, yet 50 ohms direct feed Low Noise Yagi with bent DE introduced in Dubus 1/2013
Elevation Plot
- GTV 2-7w2.7 m wide band width version of the low impedance, yet 50 ohms direct feed Low Noise Yagi with bent DE introduced in Dubus 1/2013
Elevation Plot
- GTV 2-7n3.1 m narrow band, max. 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
- GTV 2-8w3.7 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 2-8n3.8 m narrow band, max. 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
- GTV 2-9n4.3 m narrow band, balanced between low Antenna Temp. and 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
- GTV 2-9m4.5 m moderate band width, low Antenna Temp. version of the low impedance, yet 50 ohms direct feed Low Noise Yagi with bent DE introduced in Dubus 1/2013
Elevation Plot
- YBN 2-10w 12.5 Ω5.1 m - 144.0 to 144.8 MHz wide band 12 ohms OWL-style Low Noise Yagi with straight DE and very low back lobes only
Elevation Plot
- GTV 2-10LT5.1 m moderate band width, lowest Antenna Temp. version of the low impedance, yet 50 ohms direct feed Low Noise Yagi with bent DE introduced in Dubus 1/2013
Elevation Plot
- GTV 2-11LT6.0 m moderate band width, lowest Antenna Temp. version of the low impedance, yet 50 ohms direct feed Low Noise Yagi with bent DE introduced in Dubus 1/2013
Elevation Plot
- YBN 2-12w 12.5 Ω6.8 m wide band 12 ohms OWL-style Low Noise Yagi with straight DE and very low back lobes only
Azimuth Plot:
- GTV 2-12m mk2Improved 6.8 m version of the low impedance, yet 50 ohms direct feed Low Noise Yagi with bent DE introduced in Dubus 1/2013
Elevation Plot:
- GTV 2-12n6.8 m narrow band version of the low impedance, yet 50 ohms direct feed Low Noise Yagi with bent DE introduced in Dubus 1/2013
Elevation Plot:
- GTV 2-14w8.4 m version of the low impedance, yet 50 ohms direct feed Low Noise Yagi with bent DE introduced in Dubus 1/2013
Elevation Plot
- GTV 2-16w10 m version of the low impedance, yet 50 ohms direct feed Low Noise Yagi with bent DE introduced in Dubus 1/2013
Elevation Plot
- GTV 2-18w11.7 m version of the low impedance, yet 50 ohms direct feed Low Noise Yagi with bent DE introduced in Dubus 1/2013
Elevation Plot
- GTV 2-19m12.4 m version of the low impedance, yet 50 ohms direct feed Low Noise Yagi with bent DE introduced in Dubus 1/2013
Elevation Plot
- YBN 3+7 SAT
Performance Data and Geometry Pattern and VSWRGTV 2-19m Yagi with bent Driven Element
EME + SSB serious full size Long Yagi (12.4 m boom)
Serves as single Yagi for EME even with modest output power. Can be used up to FM range of band.
The pattern with all rear lobes down to approximately -30 dB makes it a very useful contest antenna.
The bent DE (K6STI style) transforms from low impedance to 50 ohms at feed point for direct feed.
Performance Data
Gain vs. isotr. Rad. 17.8 dBi Gain vs. Dipole 15.6 dBD -3 dB E-plane 25.0 deg. -3 dB H-plane 26.2 deg. F/B -31.8 dB F/R -29.5 dB Impedance 50 ohms VSWR Band Width 1.26:1 * Mechan. Length 12342 mm Electr. Length 5.93 λ Stacking Dist. h-pol. top-to-bottom 4.59 m or 15.1 ft side-by-side 4.81 m or 15.8 ft *) as in VE7BQH G/T table = at 145.00 MHz
Geometry
Pos. Full Length
Free Space
incl. SBC
Refl. 0.0 1012.3
DE(b) 264.0 970.3
DE(a) 314.0 0-100
D1 459.0 962.3
D2 737.5 953.3
D3 1283.5 924.3
D4 1922.0 910.3
D5 2663.0 899.3
D6 3454.5 893.3
D7 4274.5 881.3
D8 5118.5 871.3
D9 5973.0 867.3
D10 6808.5 861.3
D11 7631.5 858.3
D12 8450.0 857.3
D13 9236.0 852.3
D14 10027.5 850.3
D15 10819.0 844.3
D16 11643.5 835.3
D17 12342.0 822.3
ele. 8 mm
SegmentationBC = +2.3 mm = (144.6 MHz - 144.2 MHz) * 5.85 mm/MHz
Note: element lengths for Ø 8 mm fit 5/16" too
The Drivers diameter is 12 mm for all examples.
Use EZNEC's Auto-Segmentation at 380 MHz.
Sketch of Bent Dipole
Pattern Plots
Azimuth plot at 144.1 MHz
SWR plots - simulated
144.0 - 145.0 MHz
144.0 - 146.0 MHz
73, Hartmut, DG7YBN