KA9Q on Rebooting ISEE3

Phil Karn on the reboot of the 1978 International Sun/Earth Explorer-3 (ISEE-3)/ (International Cometary Explorer) Phil Karn, KA9Q is an Internet pioneer with his name on at least six RFC‘s. Best known in the world of amateur radio for his KA9Q NOS as well as numerous AMSAT satellite communications projects. Retired from Qualcomm, Karn seems…

AlfaSpid Horizontal RAU Antenna Rotator

Medium Duty Double Worm Drive Azimuth Rotator with 1 Degree Resolution. RAU has a highly reliable double worm gear drive system (less complexity = more reliability), 720-degree rotation, 1 degree accuracy, straight-forward 4-wire control cabling, and can be used in many applications without a thrust bearing thanks to its robust construction. The self-braking nature of…