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432MHz CROSS Antenna 8...
70cm CROSS Antenna 70cmCROSS16WR 8+8 Element,...
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432MHz CROSS Antenna 8 + 8 elements for LEO Satellites 70cmCROSS16WR (AA)
No review at the moment70cm CROSS Antenna 70cmCROSS16WR 8+8 Element, rear Mount 70cm CROSS Antenna 70cm16CROSS with 16 elements (8+8) is used as part of the LEO Pack.
The advantage of the rear mount is reflected in the fact that is possible to put an antenna on any metal mast. No need to put on fiberglass.
70cm CROSS Antenna 70cm16CROSS for LEO Satellites is designed to cover 70cm band 432 – 440 MHz and any radio modes like CW, SSB, FM, Q65, FT8, and all kinds of communications like DX-ing, Contesting, FM work, and LEO satellite.
In option: Can be added Universal RHCP Kit.
Antennas Amplifiers (AA) equipment is available in backorder only, and will be shipped within 10 to 15 days after the order.
Data sheet
70cm CROSS Antenna 70cmCROSS16WR 8 + 8 elements for LEO Satellites
This 70cm CROSS Antenna 70cm16CROSS is used as part of LEO Kit-Pack 2m and 70cm CROSS RHCP Yagi for Satellites with added RHCP Kit
Electrical Specifications of 70cm CROSS Antenna 70cmCROSS16WR for LEO Satellites
Frequency Range: 432 – 440 MHz
Free Space Forward Gain: 13.3 dBi
Front-to-Back Ratio: 30 dB
-3 dB Horizontal Beamwidth: 39.6°
Polarization: Horizontal and Vertical. RHCP and LHCP with phase shift
Distance Between Dipoles: 173mm
Degrees: 90°
Isolation Between Antennas: More than 28dB
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: < 1.2
Maximum Power Input: 2 x 850W
Matching Method: Direct feed through common mode choke (current balun)
Connectors: 2 x “N”
What about Orthogonality and related to that isolation between antennas (coupling) say SM5BSZ
“The NEC simulations above show that an isolation of 20 dB is sufficient. This means that the obvious way of checking a cross Yagi is to connect one of the feed lines to a transmitter with known output, and a power meter and a dummy load to the other. The attenuation is then measured directly through the power arriving at the dummy load. If it is below -20 dB compared to the transmitted power everything is fine. ”
Excellent results of isolation achieved -28 dB. Much better than SM5BSZ suggested:
70cm CROSS Antenna 70cmCROSS16WR Azimuth Radiation Pattern
Mechanical Specifications of 70cm CROSS Antenna 70cmCROSS16WR for LEO Satellites
Number of Elements: 16 (8 + 8)
Element Diameter: 4 mm Aluminum rod
Dipole Diameter: 8 mm Hard Copper tube plastic coated
Longest Element: 340 mm
Element Mounting Position: CROSS antenna – 2 Sides
Balun and Connectors: Included
Boom Length: 1.7 m
Single Antenna Length: 1.25 m
Boom Size: Tapered Boom 30×30 mm, 20×20 mm
Turning Radius: 1.8 m
Number of Boom Pieces: 2
Guy rope support: No, strong boom
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: 2.3 kg
Transportation Length: 1.19 m
70cm CROSS Antenna 70cmCROSS16WR Mounting RHCP Kit and Dipoles View
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 exceptionally good 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!
Twin Sister 2m antenna with the same 1.7m boom used in LEO Kit-Pack 2m and 70cm CROSS RHCP Yagi for Satellites
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