1:1 HF Balun, balanced to Un-balanced
Core 4C6 Philips, diameter = 36mm, height = 15mm, interior = 28mm the CU wire has a wound of 3x0.65 mm read in parallel and 3 of these are wound on the core the distance between the windings makes this balun close to 50 Ohm
post 15 May 2023
Toroid & balun Links →
Balun for yagi 144mhz
Balun yagi if coax type rg59/u is long 34,5 cm
Baluns on Log Periodic Antennas
This is the electrically ideal method of bringing the feed line back to the mast from the log feed. This method keeps the coaxial line away from the balanced transmission line formed by the boom. This works with ANY log periodic and good balun, including 200-300 ohm balanced systems
Coaxial balun
I used RG58 coaxial cable since I use less than 300 W power. Better is the use of the RG142 Coaxial cable with Teflon dielectric, which handle a power of 2 KW at 144 MHz with a lower loss also
Build a legal limit 160 10 Meter Voltage Unun or alun,AD5X
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Balun yagi if coax type rg59/u is long 34,5 cm
This is the electrically ideal method of bringing the feed line back to the mast from the log feed. This method keeps the coaxial line away from the balanced transmission line formed by the boom. This works with ANY log periodic and good balun, including 200-300 ohm balanced systems
I used RG58 coaxial cable since I use less than 300 W power. Better is the use of the RG142 Coaxial cable with Teflon dielectric, which handle a power of 2 KW at 144 MHz with a lower loss also