W8JI Technical pagespop
- Amplifier, vacuum tube, receiving beverage loop vertical and transmitting antenna system technical information radiation resistance, EH antenna, noise,receivers, and information on keyclicks.
Plainfield Radio League
- An ARRL-affiliated club serving the Plainfield-area and Joliet. Sponsors the WW9AE 70cm ARES repeater 444.550 + 114.8. Meets last Wednesday of the month at the Plainfield Family Restaurant at U.S. Rte. 30 and Renwick Road at 7:00 p.m.