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Online Calculator PHGR


Online Calculator PHGR

Online calculator will produce the text required to be put in your beacon string to display to others your phgr

post 17 Sep 2024


Antenna Calculator Links

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Coil Inductance Calculator
With both calculators, the main limitation is that they be Single-Layer Air-Core inductors

Amateur Radio RF Safety Calculator
This is a main beam power density estimation program intended for use as part of a routine evaluation of RF

Cubical Quad Antenna Calculator
Requires only the entry of the center of the frequency range your quad antenna will be used in


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

30 Volt Computer Power Supply Stack

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