73 Amateur Radio Today – March 1975 with Index
Issue Contents:
Can a 7 foot 40m Antenna Work?
– The small loop …… W0PJG 33
The Secret of Antenna Gain
– (Shhh -it’s capture area!) …… K2OAW 39
Twinlead Phased Array
– Two elements on 40m – or any other band …… WB2NQT 47
The Incredible Capacitive Antenna
– Now: an 18″ allband antenna …… W0KGI 49
An 80m Phased Array
– Switchable directivity …… W2OZH 52
A Coax Amplifier for 450 MHz
– 6 dB stacked collinear …… W5GDQ 58
Invisible Antennas
– Why ask for trouble? …… WA8BHR/5 61
Another Look at the Swan Beam Antenna
– Testing …again …… WB6PDN 66
City Dweller ‘s Multiband Antenna
– An inverted Windom? …… W4ATE 69
40m Inverted Vee Beam- Satisfying
…… WA7OET 72
The Unofficial Standard Standard
– Quack Rot Vice? ……W7IDF 74
The Mystery of Antenna Radiation
– Is it still a mystery? …… VE3DDS 81
The Double Inverted Vee
– A remarkable wire beam …… VK6IZ 91
A Short and Sweet 160m Antenna
– Build this simple portable topbander …… W2NYU/ WA1JJV 93
Pete’s Dipole
– A better method of feeding …… WA4NWM 95
The Magic of the Log Periodic
– Special Book Supplement …… W4AEO 97
Avoiding Traps with Antennas
– Three great multiband designs …… Staff 126
A New National Amateur Radio Society for Canada
– Introducing C.A.R.F. …… VE3VCA 129
Mobile SSTV Breakthrough
– 73 discovers the cassette recorder …… W2NSD/1 139
Yet Another Etching Technique
– Something fishy here …… Anderton 143
73 Amateur Radio Today – March 1975 with Index
