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6m – 50MHz Dual Polarity Yagi Antenna PA50-XPOL-6-2RA. Rear mount.
Excellent mechanical properties. Cross Polarized “XPOL” Yagi – Dual Polarity
|Frequency Range:||50-50.5 MHz|
|Free Space Forward Gain:||6.8 dBi|
|Front to Back Ratio:||20 dB|
|3 dB Beamwidth:||66°|
|Nominal Input Impedance:||50 Ohm|
|SWR Across Entire Band:||< 1.2|
|Maximum Power Input:||2 x 1000 W|
|Matching Method:||Direct feed through common mode choke.|
|Connector:||2 x “N”|
|Boom length:||2 m|
|Boom :||30 x 30 mm|
|Longest element:||3.1 m|
|No. of elements:||2 x 3|
|Element position:||Slant configuration +-45deg|
|Turning radius:||4.2 m|
|Mounting Mast Diameter:||5/4″ – 2-3/4″ 43-70 mm|
|Survival Wind Speed:||150 km/h|
|Packed size length:||1.47 m|
PA50-XPOL-6-2RA Measured characteristics with calibrated HP8753ES Network Analyzer.
Measured S11 51 – 52 MHz at antenna connector.
Measured 51 – 52 MHz VSWR at Finished Antenna.
Excellent isolation between antenna ports. More than 40 dB:
The “Dual” company has been producing antennas for more than 25 years.
We do not use “amateur” programs like NEC4, NEC2, 4NEC2, EZNEC, YO or AO.
We perform the design work using the latest professional full-3D electromagnetic modelling software. This enables us to accurately include the influence of the boom, insulators, baluns, feed point, connections, etc.
Our designs are optimised using the Particle Swarm algorithm, which is considered one of the best global optimization algorithms. We also use the classic Nelder-Mead Simplex algorithm for fine tuning. Our optimization runs frequently exceed 1 million evaluations. We rely on solid physics, not on “clever” tinkering with antenna elements or spacings.
Our antennas are precision physical instruments, they are real “Precision Antennas” (PA).