2m 11Element Yagi Low Noise Contest Antenna 2m11DX 144-145MHz
Perfect for the VHF Contests or EME. Excellent G/T. Low Noise Design.
Excellent 11 elements Yagi antenna with high gain. Great for Terrestrial VHF Contest or EME work. Length of boom pieces 1460 mm.
What does 2m11DX mean?
- 2m – 2m band
- 11 – 11 elements
- DX – Covers DX part of 2m band 144-145MHz
Electrical Specifications of 2m 11Element Yagi Low Noise Contest Antenna 2m11DX
Frequency Range: 144 – 145 MHz
Free Space Forward Gain: 14.8 dBi
Front-to-Back Ratio: 27 dB
-3 dB Horizontal Beamwidth: 35°
-3 dB Vertical Beamwidth: 38°
Polarization: Horizontal
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: < 1.2
Maximum Power Input: 500 W (more by request)
Matching Method: Direct feed through common mode choke (current balun)
Connector: “N” (or 7/16 DIN by request)
Power versions of super low noise EME antenna 2m11DX
“P” – Power version “N” Input connector RG142 5mm Teflon balun cable: 1500W 2m11DXP
“E” – Extra power 7/16 DIN Input connector SF250 7mm Teflon balun cable: 2000W 2m11DXE
“EX” – EXtreme power 7/16 DIN Input connector RG115 10mm Teflon balun cable: 5000W 2m11DXEX
Mechanical Specifications of 2m11DX
Number of elements: 11
Element Diameter: 8 mm Aluminum tube
Dipole Diameter: 8 mm Hard Copper tube plastic coated
Longest element: 1040 mm
Element Mounting Position: Below the Boom
Balun and Connector: Included
Boom Length: 5.72 m
Tapered Boom: 40x40mm, 30x30mm
The number of Boom Pieces: 4
Guy rope support: Yes, Included
Mounting Mast Diameter: 43 – 70 mm 1-11/16″ – 2-3/4″ OD
Clamp: 2 x M8 Stainless Steel
Survival Wind Speed: 180 km/h
Net Weight: 7,6 kg
Gross Weight: 9,7 kg
Transportation Length: 1.49 meters
144 MHz Yagi Antenna with Boom length about 6 meters. 11 element Yagi Vertical Stacking Distances for F/S -12.5 dB:
2 Antennas | 3.1 m for Gain 17.72 dBi (+2.92 dB) |
4 Antennas | 3.3 m for Gain 20.8 dBi (+6 dB) |
2 meter 11 element Yagi Antenna Horizontal Stacking Distances for F/S -12.5 dB:
2 Antennas | 3.3 m for Gain 17.7 dBi (+2.9 dB) |
4 Antennas | 3.6 m for Gain 20.8 dBi (+6 dB) |
PA144-11-6BG 2 meter 11 element Yagi Antenna in “H” frame. Two configurations. Max gain and low side lobes for high noise urban area.
4 Antennas Max Gain | H=3.25 m V=3.1 m for Gain 20.62 dBi (+5.82 dB) for F/S -12.5 dB |
4 Antennas Low SideLobes (Urban) | H=2.88 m V=2.75 m for Gain 20.15 dBi (+5.35 dB) for F/S -17 dB |
Low Noise antenna for VHF Contest on 144 MHz and EME work. 2 meters 144.1 MHz Azimuth Radiation Pattern.
Excellent gain and great suppression of all side lobes.
2 meter 144 MHz Contest EME Low Noise Yagi Antenna. Boom Join Detail Guy Rope Support.
11-element 144 MHz Contest antenna, Low noise pickup. Dipole, balun, and “N” connector detail.
Bracket and Guy Rope support view of 2m11DX VHF Terrestrial Contest or EME Antenna.
Another view of Low Noise High Gain Yagi antenna 2m11DX
The antenna shares the same design as PA144-11-6B except for Guy rope support.
About antenna read this review.
Ultimate design with with latest professional full-3D electromagnetic modelling software.
Not possible with EZNEC Pro/4 – NEC4.2 engine, 4NEC2, EZNEC, YO, or AO except by accident or tinkering with antenna elements or spacings.
Comparison of EM simulation software
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Robert –
I received the antenna at 13:23
at 16:18 I put up in garden SWR was 1:1.21
at 19:39 it was in its place on roof SWR 1:1.06
Fantastic!
Thank you again!
73! HA5OLA Robert