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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 straight 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 straight 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 VSWR Download as FileYBN 2-10w Yagi with Conventional Driver (Split or Folded Dipole)
This is the third extension of the original 5-8 concept. Now there are 3 buiding blocks. Starting with the YBN 2-5m,
extension No. 1 to the YBN2-8m and finally to the YBN2-10w. They all use the same Driver Cell elements and dipole.
Thus one can swap between various setups like 5 over 5 to 4 x 8 elem. or to 4 x 5 ele. vertically or now even any
2 x 10 ele. or full 4 bay of 10 elements very easily.
The YBN2-10w is a real low Q Yagi. The G/T is not spectacular - though solid average still - but this is a very
forgiving design suitable to be built by everyone and anyone. There is an off the shelf Folded DE with Balun etc.
available for these three blocks even.
Just as time, place and WX conditions demand. Read the full text in Dubus magazine issue 4/2012
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Performance Data
Elem. 8 mm
Gain vs. isotr. Rad. 14.3 dBi
Gain vs. Dipole 12.1 dBD
-3 dB E-plane 37.2 deg.
-3 dB H-plane 41.0 deg.
F/B -23.5 dB
F/R -23.5 dB
Impedance 50/200 ohms
Mechan. Length 4950 mm
Electr. Length 2.38 λ
Stacking Dist. h-pol.
top-to-bottom 2.97 m (10.70 ft)
side-by-side 3.26 m ( 9.75 ft)
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EZNEC wires window : Straight Split DE Version
No SBC needed since designed with auto segmentated wires at designated frequency => Free Space Geometry ready to apply a BC according planned style of building
Ø8 mm Elements exclusive boom in free air
Refl DE D1 D2 D3 D4 D5 D6 D7 D8
Pos. 0 283 403 822 1440 2130 2850 3580 4325 4950
Ele. 1029 992 950 932 909 886 878 876 872 834
Diam. 8 10 8 8 8 8 8 8 8 8
Ø8 mm Elements insulated on 20 x 20 mm Boom -
Dimensions using common holders by Konni, WiMo, Nuxcom & 7arrays (BC acc. DG7YBN)
Refl DE D1 D2 D3 D4 D5 D6 D7 D8
Pos. 0 283 403 822 1440 2130 2850 3580 4325 4950
Ele. 1032.9 (995.9) 953.9 935.9 912.9 889.9 881.9 879.9 875.9 837.9
Diam. 8 10 8 8 8 8 8 8 8 8
Ø8 mm Elements insulated on 25 x 25 mm Boom -
Dimensions using common holders by Konni, WiMo, Nuxcom (BC acc. DG7YBN)
Refl DE D1 D2 D3 D4 D5 D6 D7 D8
Pos. 0 283 403 822 1440 2130 2850 3580 4325 4950
Ele. 1036.6 (999.6) 957.6 939.6 916.6 893.6 885.6 883.6 879.6 841.6
Diam. 8 10 8 8 8 8 8 8 8 8
Ø8 mm Elements insulated on 25 x 25 mm Boom -
Dimensions using high holders by 7arrays (BC acc. DG7YBN)
Refl DE D1 D2 D3 D4 D5 D6 D7 D8
Pos. 0 283 403 822 1440 2130 2850 3580 4325 4950
Ele. 1032.7 (999.6) 953.7 935.7 912.7 889.7 881.7 879.7 875.7 837.7
Diam. 8 10 8 8 8 8 8 8 8 8
Ø6 mm Elements insulated on 20 x 20 mm Boom -
Dimensions as if using SM7DTT Holders (BC = 2.3 mm acc. DG7YBN)
Refl DE D1(x) D2 D3 D4 D5 D6 D7 D8
Pos. 0 283 403 822 1440 2130 2850 3580 4325 4950
Ele. 1030.3 (999.6) 962.3 940.3 921.3 898.3 892.3 888.3 880.3 848.3
Diam. 6 10 6 6 6 6 6 6 6 6
(x) D1 geometry for use of folded dipole, may be subject to changes for straight split dipole
Ø5 mm Elements insulated on 20 x 20 mm Boom -
Dimensions using SM7DTT Holders (BC = 2.3 mm acc. DG7YBN)
Refl DE D1(x) D2 D3 D4 D5 D6 D7 D8
Pos. 0 283 403 822 1440 2130 2850 3580 4325 4950
Ele. 1032.0 (999.6) 967.0 945.0 927.0 903.0 900.0 893.0 885.0 855.0
Diam. 5 10 5 5 5 5 5 5 5 5
(x) D1 geometry for use of folded dipole, may be subject to changes for straight split dipole
This Yagi with 8 mm elements on a 20 x 20 mm boom with hydraulic clamps (like Stauff)
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Ele. 8.0 mm DE 10.0 mm Boom 20 x 20 mm |
"Ready to saw and drill" data for mounting elements on boom with BC according DG7YBN for hydraulic clamps (like Stauff):
Includes an SBC of 0.0 mm
Here is a very helpful overview on the stages of the YBN 5- 5 / 8 / 10 ele. project provided by Stef, F4EZJ
It shows what elements are shared and different at what positions on the boom for the various combinations
Note: Lengths given fit elements mounted on a 20 x 20 mm boom with 'standard insulators' and M3 screw
Drawing of boom for full extensions YBN 2-5m > YBN 2-8m > YBN 2-10w
Pattern and VSWR Plots
Elevation and Azimuth plot at 144.1 MHz - Version with Folded Dipole from WiMo EF0208c
Return Loss and VSWR plot
Downloads
EZNEC file of this Yagi with Straight Split DE
EZNEC file of this Yagi with Folded DE
Stacking
Stacking Dist. DL6WU Formula H-plane 2.97 m E-plane 3.26 m
Data of 4 Yagi stack using DL6WU stacking distances
Gain vs. isotr. Rad. 20.1 dBi Gain vs. Dipole 18.0 dBD F/B -28.2 dB F/R -28.2 dB T_ant 234,9 K* G/T -3,58 dB* (straight split DE version)Theoretical numbers, no phasing line losses
nor imperfections caused by H-frame included
*) T_sky = 200 K, T_earth = 1000 K as in VE7BQH G/T table
Elevation plot
TANT screenshot
73, Hartmut, DG7YBN