Super Low Noise 2m EME Contest Winning Antenna 2m24XPOL
12+12 elements 2m EME Contest Winning Antenna 2m24XPOL on about 7.4m boom. Super gain and low noise proved by a couple of first places in EME contests. Four antennas in the “H” stack are the victorious combination to dig any weak EME or terrestrial signal as the most significant recipe to win.
2m EME contest antenna to dig weak signals 2m24XPOL
What does 2m24XPOL mean?
- 2m – 2m band
- 24 – 24 elements 12 + 12
- XPOL – XPOL Antenna has 2 sets of elements oriented in an “X” format. One set of elements is +45 degrees to the Earth, the other -45 degrees.
Electrical Specifications of 2m EME contest winning antenna 2m24XPOL
Frequency Range: 144 – 145MHz
Free Space Forward Gain: 15.6dBi
Front-to-Back Ratio: 33dB
-3 dB Horizontal Beamwidth: 32.7° For Horizontal Polarization
-3 dB Vertical Beamwidth: 34.5° For Horizontal Polarization
G/T for Tsky=290K-Tearth=5400K: -4.46dB for Horizontal and -4.23dB for Vertical Polarization
Polarization: Horizontal, Vertical, RHCP, LHCP with phase shift
Distance Between Dipoles: 520mm
Isolation Between Antennas: More than 30dB
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: <1.2
Maximum Power Input: 3000W for both antennas
Matching Method: Direct feed through common mode choke (current balun)
Connectors: 2 x “N”
2m EME Contest Winning Antenna 2m24XPOL Horizontal Polarization Azimuth Radiation Pattern
Power version of 2m EME Contest Winning Antenna 2m24XPOL
“E” – Extra power 7/16 DIN Input connector 7mm SM250 Teflon balun cable: 4000W 2m24XPOLE
“EX” – EXtreme power 7/16 DIN Input connector 10mm RG115 Teflon balun cable: 10000W 2m24XPOLEX
2m EME Contest Winning Antenna 2m24XPOL Horizontal Polarization Elevation Radiation Pattern
Mechanical Specifications of 2m EME contest winning antenna 2m24XPOL
Number of Elements: 24 (12 + 12)
Element Diameter: 8mm Aluminum tube
Dipole Diameter: 8mm Hard Copper tube plastic coated.
Longest Element: 1040mm
Element Mounting Position: Above the Boom. Slant configuration +-45 deg
Balun and Connectors: Included
Boom Length: 7.4m
Single Antenna Length: 6.83m
Boom Size: Tapered Boom 40x40mm, 30x30mm, 20x20mm
Number of Boom Pieces: 6
Guy rope support: Yes, Included
Mounting Mast Diameter: 43 – 70mm 1-11/16″ – 2-3/4″ OD
Survival Wind Speed: 150km/h
Net Weight: 12kg
Gross Weight: 14kg
Transportation Length: 1.5m
2m EME Contest Antenna to Dig Weak Signals 2m24XPOL Bracket and Support View
Measured SWR on finished 2m EME contest winning antenna 2m24XPOL
2m EME Contest Winning Antenna 2m24XPOL
What about 2m24XPOL antennas (old name PA144-XPOL-24-7BGP) say Conrad PA5Y
2019 ARRL EME Contest
I did the ARRL EME contest at the weekend and worked 27 of the 30 hours of available moon time. The score was VERY good. 151 QSO, 78 multipliers, 1,177,800 pts. Everything worked flawlessly even in heavy rain. I am pretty sure that there were no missed QSOs.
73 Conrad PA5Y
I have improved alignment on the moon. The TX performance is outstanding. I can always hear my echoes. I am often louder than many stations with bigger arrays, so I am very impressed. The RX is also one of the best in the band. The TX polarisation works perfectly, and my RX pol is also absolutely bang on.
Many thanks for producing yet another set of excellent antennas.
73 Conrad PA5Y
Achieved results say much more than words. PA5Y won the 2m ARRL EME contest in 2020, 2021 (432MHz), and 2022.
Antennas-Amplifiers Product Benefits. A Major advance in Amateur Radio antenna design.
- F/B and G/T superiority.
All antennas have been calculated using state-of-the-art full 3D Electromagnetic Simulation Software including the influence of the boom, bracket, baluns, and connectors. The performance of antennas designed using these techniques is exceptional, far better than antennas designed using “wire” programs.
Comparison of EM simulation software
- No tuning antennas
Before dispatch, we assemble each antenna and test antenna characteristics. That means you may expect excellent electrical and mechanical attributes including low SWR across the designed range immediately after assembling.
No need to tune the dipole, or any other element to get perfect SWR on the intended frequency range. Everything is pre-tuned.
- Easy to set up
Everything is labeled, just put number to number. The antenna can be assembled with hand tools in a couple of minutes.
Everything is included in the antenna box: Antenna, balun with connector, and bracket. Yours is to assemble and have fun!
The old name of the antenna was PA144-XPOL-24-7BGP