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Admin

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Everything posted by Admin

  1. "Yes, here's a solution...
  2. brass or copper , both are good...!!!
  3. ,,,hi buddy, I do not think it would be a good solution," to think about it...!!!
  4. Skyfun,how does it go ?? with the engine placed more behind...
  5. ,,, search on this forum, and you will find it...!!!
  6. Ok,with PCBs get poor results see this...
  7. THAT'S THE BEST....
  8. Where you want, depends on which polarization you use....!!!
  9. Hi buddy, for executing a biquad antenna with port(SMA), it would be advisable to follow the instructions below... For biquad antenna calculation you can use this,,,http://3g-aerial.biz/onlajn-raschety/raschety-antenn/raschet-antenny-kharchenko-zigzagoobraznoj And for the SMA port, below is a CST file... SMA mic.cst SMA mare.cst
  10. These are both , the sizes and position of the feed point...
  11. Vector reflectometer "CABAN R140" is intended for measurement of the complex reflection coefficient in various coaxial tracts in the frequency range from 85 MHz to 14 GHz. The meter is the virtual instrument is running on an external computer that is not included in the package. The power and communication with computer is carried out through interface USB 2.0. It is possible to measure the modulus of the transfer device using two time-domain reflectometer are connected to the same USB controller. The frequency range from 85 MHz to 14 GHz Measuring the magnitude and phase of reflection coefficient, cable loss Measurement of the modulus of the transfer Measurements in the time domain, the temporal selection The time of measurement at a single frequency 200 µs Step frequency of 25 Hz Power supply from USB interface Compact: 127х62х30 and light: 0.3 kg Measuring complex coefficients of transmission and reflection (vector analyzer circuits) is intended for use during validation, customization and development of various electronic devices in industrial environments and laboratories, including automated measuring stands.
  12. Transmitting and receiving antenna GELLAN FullBand-18F is designed to organize data transmission technology GSM-1800, 3G, 4G. The antenna provides a stable high-speed mobile Internet access. GELLAN FullBand-18F greatly improves the data transfer rate and ensures a stable connection with the base station of the cellular operator at a distance of up to 15 kilometers. Specifications Support cellular standards.........................3G/4G Operating frequency range, MHz...................................1700-2700 Gain, dB.......................................................18 Input impedance, Ohm................................................................50 The CWS in the operating range.................................................... < 1,5 Antenna polarization...........................................vertical Connector type.......................................................................F-Female Weight and dimensions Weight, kg.........................................................................................1,2 Overall dimensions, mm.......................................240х450х40 The package 1. Panel antenna Gellan 2. Fastening kit 3. Installation instructions *Casing made of plastic resistant to UV rays and temperature changes. **Tightness of connections is provided by the modern materials. Dustproof waterproof IP 65
  13. ,,,hi buddy...!!! ,,,but tell me, do you have such a thing? ,,,many years ago, I did a simulation on this antenna...!!!
  14. The lowered version UWB (1.02----1.23 GHz)
  15. Okay, it's a downsizing,,,,
  16. This is a panel antenna made of rings of copper wire, having impedance matching lines in the air and a considerable directivity
  17. ,,, it looks like it's pretty much like this.....!!!!
  18. ,,, see the difference....https://vk.com/videos-59055554?z=video-59055554_456239017%2Fclub59055554%2Fpl_-59055554_-2
  19. Practical realization with coaxial cable...
  20. In the field of microwave engineering and circuit design, the Wilkinson Power Divider is a specific class of power divider circuit that can achieve isolation between the output ports while maintaining a matched condition on all ports.
  21. 17 yagi antenna elements for 1.2GHz
  22. ...wait a little...!!!
  23. N-P245
  24. Drawing for lovers of this hobby with the specification that the biloop dimensions are the earlier ones...!!!