73 Amateur Radio Today – May 1981
Issue Contents:
Two-meter Antennas: Facts and Fables
– the truth about omnidirectional antennas on two …… W1IS 12
The 440-mHz Curtain
– hang this broadbanded two-bay collinear on your tower and get 22 dBi to play with …… WA9OZC 22
The Plumber’s Parabolic Mount
– a first-class hydraulic system …… WD4MRJ KA4JYD 28
The History of Ham Radio
– part XIV …… W9CI 36
The Skeptic’s Multiband Ground Plane
– This antenna flies in the face of accepted theory. Do you think it will work? …… W1GV 38
Dish It Out
– home-brewing a parabolic reflector with the focus on cost ……W4NK 42
The Earth Mover
– would you believe that this antenna changes its height aboveground without moving? …… W8HXR 46
Sailing the Tri-band Sloper
– put some half-waves among your halyards matey! …… W8KXW 50
Touch-tune
– tactile frequency determination for visually handicapped hams …… AA3S 54
Stay Tuned
– three tuner projects with no commercial interruptions …… Staff 58
Review: Kenwood’s New 830s
– evolution not revolution …… WB8BTH 66
Review: Azden’s PCS-3000
– the 2-meter rig of the future is available now …… WA2JSR 68
Battlewagon
– tales of a mini-expedition to the USS Texas …… WD5ICY 72
Inside Coax
– know what you’re buying in quality and construction …… WB6MMV/7 78
The “No Antennas” Antenna
– a coaxial dipole is one woman’s solution to problems with pesky landlords …… WA9BBX 82
Slow-scan in Bits and Bytes
– microprocessors and plugin cards can give you flexibility on SSTV …… K6AEP 84
Review: Cushcraft’s Skywalkers
– performance through computer-aided design …… WB8BTH 98
Review: Avanti’s 10-meter Quad
…… AE3S 99
Review: VoCom’s Collapsible Whip for HTs
– 5/8-wave from 144 to 450 MHz …… W8FX 100
Review: Kreco’s SC-15OA 2-meter Collinear
– a commercial-quality antenna built to take it …… W8FX 110
73 Amateur Radio Today – May 1981
