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Super J-Pole Collinear


The central hairpin separating the two 5/8, can be made with 4 mm2 hard copper wire or even with a piece of copper serpentine
post 14 Feb 2024
Super J-Pole Collinear

Antenna Calculator Links

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WiFi Antenna Calculators
Enter the diameter of your can above and click on the calculate button. 802.11b and 802.11g WiFi networking equipment

Wireless 2.4 GHz Directional Antenna Calculator
Low Cost Home Brew Waveguide Antenna For 802.11b Wireless Networks And Other 2.4GHz Applications

802.11b Horn Antenna Designer calculator.Frequency
This page just helps to compute cutouts to build horns inside boxes


23cm Yagi Antenna building

23cm Yagi Antenna building Finished antenna at 1275 MHz SWR under 1:1.5 at resonant frequency

50 MHz preamp Gain 26dB with the BFG135

50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection

interface-for-digital-broadcasts-with-integrated-audio

Interface-for-digital-broadcasts-with-integrated-audio 4-port HUB, with a TUSB2046. With port 1 of the HUB we drive the FT232RL; with port 2 the PCM2904, furthermore, we decided to leave ports 3 and 4 free