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The GM3VLB 5 Band mini delta beam
5 Band mini delta beam 14-18-21-24-28 Mhz
Antenna Delta Loop Links →
Delta Loop Dimenciones de la Antena en Mts
Delta arms, are all corticircuitados each other, the impedance at the point of power is 120 ohms, for this reason to feed it, a Much Range adapter is used. It is ideal for bands of 10, 15 and 20mt
Delta loop for 20mt
L'elemento radiante e' un triangolone di 6,7 metri per lato per un totale di 20,10 metri ed al centro della base del triangolo, realizzare un bobina fatta di 16 spire in aria diam. 2 cm., lunga 10 cm
28 and 24 MHz Limited Space 3/4 Wave Delta Loop
Using the standard formula for loops, 1005 divided by frequency in MHz gives us the one-wavelength design length for a particular band
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Delta arms, are all corticircuitados each other, the impedance at the point of power is 120 ohms, for this reason to feed it, a Much Range adapter is used. It is ideal for bands of 10, 15 and 20mt
L'elemento radiante e' un triangolone di 6,7 metri per lato per un totale di 20,10 metri ed al centro della base del triangolo, realizzare un bobina fatta di 16 spire in aria diam. 2 cm., lunga 10 cm
Using the standard formula for loops, 1005 divided by frequency in MHz gives us the one-wavelength design length for a particular band
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