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Ddrr antenna for 6M


DDRR stands for Directional Discontinuity Ring Radiator a short, vertical monopole antenna connected to a transmission line
post 06 Mar 2024
Ddrr antenna for 6M

Antenna 6 meter Links

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4 elementos para 6 metros
4 elements yagi antenna for experimentation in 50,110 MHz, 6 meter band

4 and 2 Element Quad Antennas for the 6m Band
This antenna is based on a design for a portable 2 element 6m Quad

45-70 MHz aerials for TV DX
To calculate the length of a half wave dipole at a given frequency, use the following simple formula: 468 divided by the frequency = half-wavelength in feet. 468/f MHZ = answer in feet

50Mhz 6 Element Yagi


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