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- YBN 70-5mA 0.5 m 432 MHz blue print of the YBN 2-5m 50 ohms high F/B direct feed 144 MHz Low Noise Yagi
3D Plot
- YBN 70-8zA 1.5 m high gain 28 ohms Yagi.
A design partly based on the hardware of the WY-7010, turning it into a 8 ele. 28 ohms Yagi with cleaner pattern, +1.8 dB gain and better VSWR.
Azimuth Plot
- YBN 70-14wzTune up your 19 ele. Tonna!
A design based on the hardware of the F9FT, turning it into a 14 ele. OWL with cleaner pattern, +0.3 dB gain and SWR less than 1.2 from 430 to 440 MHz
Azimuth Plot
- YBN 70-14+4wA 3.2 m very wideband 50 ohms Yagi with reflector wall that covers the whole 70 cm band with ease
Elevation Plot
- GTV 70-2wA 0.14 m GTV useful for portable operation and up to the satellit band and handheld activities of any kind
Elevation Plot
- GTV 70-3wA 0.21 m GTV useful for portable operation and up to the satellit band and lower noise stacks of any kind
Elevation Plot
- GTV 70-4mA 0.34 m GTV useful for portable operation up to the satellit band and lower noise stacks of any kind
Elevation Plot
- GTV 70-7wA 0.96 m GTV useful for portable operation up to the satellit band and lower noise stacks of any kind
Elevation Plot
- GTV 70-7nA 1.1 m 432 MHz blue print of the low impedance, yet 50 ohms direct feed 144 MHz Low Noise Yagi introduced in Dubus 1/2013
Elevation Plot
- GTV 70-8nA 1.3 m 432 MHz GTV with high gain but low backlobe volume. Makes a very compact 4 Yagi bay for QRP EME or contesting.
Elevation Plot
- GTV 70-9wA 1.44 m GTV ment to be useful as a vertical stack for contesting or be an ideal small size portable Yagi
Elevation Plot
- GTV 70-10wA 1.63 m GTV useful for portable operation up to the satellit band and lower noise stacks of any kind
Elevation Plot
- GTV 70-11wA 2.01 m GTV ment to be useful as a vertical stack for contesting or be an ideal small size portable Yagi or minimum size EME 4 bay
Elevation Plot
- GTV 70-13mA 2.5 m GTV ment to be useful as a vertical stack for contesting or be an ideal small size portable Yagi or minimum size EME 4 bay
Elevation Plot
- GTV 70-14m2.9 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 70-17m3.7 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 70-18w4.0 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 70-19m4.2 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 70-21n4.7 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 70-23m5.3 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 70-25m5.9 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 70-30m7.3 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 70-34w8.5 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 70-46w12.0 m version of the low impedance, yet 50 ohms direct feed Low Noise Yagi with bent DE introduced in Dubus 1/2013
Elevation Plot
- DL6WU YagisThe DL6WU Longyagi Series
Sample plot: 32 el. plus 4 x reflector
Elevation Plot
- YBN 70-5m
Performance Data and Geometry Pattern and VSWR Mounting to Mast Suggestion Stacking & Antenna G/TGTV 70-46w Yagi with bent Driven Element
EME band segment to 438 MHz very long Yagi
Bred as a very low noise Yagi it shows a typically clean pattern for its length.
The bent dipole is K6STI style as with all GTV designs
This design more or less is just a case study:
I wanted to see if I come near the
"PA432-43-12 World Best 432 MHz Antenna G/T / World Best G/T Super Yagi"
on same boom length and element diameter.
The GTV 70-46w is not fully developed. I stopped at the point were I found
a higher G/T and lower Antenna Temperature to that 43 element 12 m boom Yagi.
Hence there will be no support for how to build this Yagi at the moment.
Currently I seek to calm this annoying second side lobe ...
Antenna View and Current Profile
Performance Data
Specs: with 8 mm elements @ 432.1 MHz
Gain vs. isotr. Rad. 21.7 dBi Gain vs. Dipole 19.6 dBD -3 dB E-plane 16.8 deg. -3 dB H-plane 17.2 deg. F/B -40.3 dB F/R -36.5 dB Impedance 50 ohms Mechan. Length 12030 mm incl. 2 x 30 mm boom ends offset Electr. Length 17.25 λ Stacking Dist. h-pol. top-to-bottom 2.320 m side-by-side 2.375 m
How often has this Design being viewed since Jan. 2017?
Elevation and Azimuth Plot
Return Loss and VSWR
Serving Suggestion
It is understood that it is vital for such a long beam of rather limited thickness
that we support it with a 3 dimensional stucture. Which might be produced by
the combination of a strut and two v-shape guy wires to front and back. With sufficent
stiffness to prevent the whole thing from shaking in wind gales which animate it to
vibrate in 1st or 3rd natural mode.
4 Yagi bay at Stacking Distances per DL6WU (2375 x 2320 mm) strictly for now.
Radiation Pattern Simulations
Antenna Temperature and G/T; Average Gain for the lossless Yagi model is 1.001
Plots generated with 4nec2's 3D Viewer
73, Hartmut, DG7YBN