73 Amateur Radio Today – May 1980
Issue Contents:
Home-brew Rf Impedance Bridge
– indispensable tool for antenna fans …… WB6BIH 30
Rotary Beam for 10 or 15: the LB-2
– eliminates nasty matching problems …… W6TYH 36
The 20-meter Double Bobtail
…… W8HXR 44
Simple Switcher
– a remote antenna switch with no control wires …… WB5SFB 48
Taming the Monster Quad
– a four-element blockbuster you can build …… WA4JQS 50
For Cheapskates Only: A No-frills Tilt-over
– requires a friend with a welding rig …… W9YFG 52
VHF Signal Diffraction
– why the highest antenna may not be the best …… W5GFE 56
Wear Your Halo with Style
– Mork would love it …… W9NMX 58
Curtain Raiser
– simple Sterba curtain antennas …… W2JTP 60
Who Needs a Rotator?
– how to do without …… W8HXR 61
A Tri-bander for the Attic
– work 10 20 and 40 with this compact antenna …… W4UCH 62
Hurricane!
– when David ravaged Dominica hams were at their best …… 8P6KX/9Y4JW 68
A “Short-Yard” Antenna for 40/75
– fits where others won’t …… W9CRC 78
Antenna Fans: Try The Skeleton Slot
– an improved driven element for VHF/uHF …… Staff 80
The Capacitive Coaxial Ground Wire
– could this be the end of TVI? …… DA1TM/wD9HBB 82
Stick ‘Em Up
– install this 2m Bi-loop anywhere …… W82MYT 83
Old Fishermen Never Die
– they just learn to raise dipoles …… WA4LLE 84
Breakthrough! A Computerized Antenna Rotator!
– KIM-l can do! …… K3LF WB3CTZ 86
Antenna Engineer
– predict performance of phased arrays with a TRS-80 …… K8UR 96
SWTP/h14 Get-together
– a driver routine for the Heathkit line printer …… WA8GTG 100
Hustler Minibeam: the Mobileer’s Secret Weapon
– two-el beam fits in your trunk …… K4TWJ 104
The Pope Comes to the Cornfields
– and Iowa amateurs provide the communications …… WD0AKB AK0Q 108
Confused About Phased Arrays?
– educate yourself with this simple model …… W5JJ 118
A Beam for Less than a Buck
– have a ball for eighty cents …… KA8CGE 122
The California Crank-up
– most convenient mast around …… W6WDF 131
The Beachside 2-meter Beam
– stands up to salt spray …… K1QPS 132
Double Duty Mag-mount Antenna
– it’s a portable GP too …… K4IQJ 134
A 40-meter Quad for $20
– assuming you own two towers …… WA4JQS 136
A Dirt-cheap Tower Base
– you can take it with you …… WA5TDT 138
Tri-band Dual Delta
– here’s an attic antenna that works …… WB6MMV/7 146
Try a Fox and Hare Special
– antenna for DF operations …… SV0WX 148
The IC Outener
– remove soldered-in chips …… WA4WDL WB4LJM 150
73 Amateur Radio Today – May 1980
