What kind of radio hardware is needed to run the Grid software?
Most 802.11 cards (PCMCIA, ISA, or PCI) should work. Mostly it’s a question of what devices your operating system supports. Some features of the Grid software might not work with all cards because they depend on modifications made to specific drivers. We use Cisco/Aironet 340 PCI cards on the indoor test-bed network, with the supplied 2 dBi rubber duck antennas. The 340 has a maximum output power of 30 milliwatts. The rooftop network uses the 350 model, which is very similar to the 340 (e.g. same drivers), but has a maximum output power of 100 milliwatts. The rooftop network uses a combination of high-gain omnidirectiona antennas (e.g. the 12 dBi AIR-ANT4121, or the 5.2 dBi AIR-ANT2506), and one directional (yagi) antenna for the link to the Internet (13.5 dBi AIR-ANT1949). Which antennas to use depends a lot on the details of your network setup. The Cisco antenna guide has lots of useful information.
