Homemade VHF/UHF Antennas - Cascade Amateur Radio Society

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Why do I care? Gain is a major factor as to how well an antenna functions both in transmit and receive. • Power Gains • 3 db = X2 power • 6 db = X4 power • 10 db = X10 power • 20 db = X100 power • Power Loss • -3 db = ½ power • -6 db = ¼ power • -10 db = 1/10 power • -20 db = 1/100 power
Reading Materials ARRL Antenna Source Book QST Magazine Internet Most of the designs in this presentation were found Most of the designs in this presentation were found online.
Page 2 and 3: What criteria am I looking for in a
Page 4 and 5: Gain What gain is How it is expre
Page 6 and 7: Gain Antenna gain can be specified
Page 10 and 11: Basic antenna types Dipole antenna
Page 12 and 13: J Pole
Page 14 and 15: Horizontal Dipole
Page 16 and 17: Vertical with Ground Plane
Page 18 and 19: Stacked Vertical
Page 20 and 21: Yagi
Page 22 and 23: SWR VSWR Voltage standing wave rat
Page 24 and 25: Test Equipment SWR Meter SWR Test
Page 26 and 27: SWR Tester This is similar to an S
Page 28: Field Strength Meter A field stren

Homemade VHF/UHF Antennas - Cascade Amateur Radio Society

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