2 meter 11 Element Portable VHF Contest and Low Noise EME Antenna PA144-11-6B.
Wideband Antenna 144 to 145 MHz. Excellent for VHF Contest or portable EME. Low Noise Design.
Excellent 11 elements High Gain Yagi antenna. Great for Terrestrial VHF Contest or portable – EME work. Length of boom pieces 1460 mm.
| Electrical Specifications 2 meter | |
| Frequency Range: |
144 – 145 MHz |
| Free Space Forward Gain: | 14.8 dBi |
| Front to Back Ratio: |
27 dB |
| 3 dB Horizontal Beam-width: | 35° |
| 3 dB Vertical Beam-width: | 38° |
| G/T | tbd. |
| Polarization | Horizontal or Vertical |
| Nominal Input Impedance: | 50 Ohms |
| SWR Across Entire Band: | < 1.2 |
| Maximum Power Input: | More than 500 W, 1500 W available |
| Matching Method: | Direct feed through common mode balun |
| Connector: | “N” |
| Mechanical Specifications 2 meter | |
| Number of elements: | 11 |
| Element Diameter: | 8 mm Aluminum tube |
| Dipole Diameter: | 8 mm Hard Copper tube |
| Longest element: | 1040 mm |
| Element Mounting Position: | Below the Boom |
| Balun and Connector: | Included |
| Boom Length: | 5.72 m |
| Boom Size: | 40 x 40 mm + 30 x 30 mm |
| Number of Boom Pieces: | 4 |
| Guy rope support: | No |
| Mounting Mast Diameter: | 43 – 70 mm 1-11/16″ – 2-3/4″ OD |
| Survival Wind Speed: | 180 km/h |
| Transportation Length: | 1.49 m |
| Antenna Weight: | 6.95 kg |
| Gross Weight: | 9.2 kg |
144 MHz Yagi Antenna with Boom length about 6 meter. 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 Side Lobes (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 portable VHF Contest on 144 MHz and EME. 2 meter 144.1 MHz Azimuth Radiation Pattern.
Great suppression of all side lobes.
2 meter 144 MHz contest portable Low Noise Yagi Antenna PA144-11-6B.
11 element 144 MHz Contest antenna, 6 meter boom. Low noise pickup. Dipole, balun and “N” connector detail.
Antenna share same design as PA144-11-6BG except Guy rope support.
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 spacing’s.
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