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Calculation dipole Inverted
Over level ground, the minimum height for the apex feedpoint of an Inverted Vee is determined by the angle downward slope
post 31 Mar 2024
Antenna Calculator Links →
2.4GHz Cantenna Calculator
By entering the height and width of your loop 36 or 48 inches each if building as per above and the number of turns and distance between turns
5/8 wave antennas vertical
The 5/8 wave antenna consists of a vertical radiator which is fed at the base of the antenna
Am Loop Antenna Calculator UMR EMC Lab Formula
By entering the height and width of your loop 36 or 48 inches each if building as per above
A wireless link calculator
Parameters: Power, Rx Sensitivity, Gain, Lenght, Type, Distance, Frequency
160
By entering the height and width of your loop 36 or 48 inches each if building as per above and the number of turns and distance between turns
The 5/8 wave antenna consists of a vertical radiator which is fed at the base of the antenna
By entering the height and width of your loop 36 or 48 inches each if building as per above
Parameters: Power, Rx Sensitivity, Gain, Lenght, Type, Distance, Frequency
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 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
30 Volt Computer Power Supply Stack A bonus was that i discovered that these did not need a standby load connected to the supply to keep them running just apply mains power and close the Start lead to ground