73 Amateur Radio Today – April 1993
Issue Contents:
Mini-quad Loops
– Three-fifths-size loops with full-size performance …… NH6XK 10
Copper Dual-band Super J-pole Antenna
– Build it in less than an hour …… KA0NAN 12
HR2510 Hi-power Modrtication
– Increase the performance of this popular HF rig …… Merrill 17
10 Meter X-beam
– Upgrade your antenna as well as your license …… N5SJZ 18
Lightweight Collapsible Quad for 2 Meters
– Excellent performance in a small package …… AA1EX 26
Want a Dish?
– Building your own is easier than you think …… WA8WBP 30
The Ultratorch
– A tool for liberation …… N4RVE 24
The j-com Zetel SDP-600 Smart Patch
– Autopatch at a reasonable price …… WB9RRT 36
73 Amateur Radio Today – April 1993