Brough Turner wrote: > ...it doesn't matter if the switch has a lot of insertion loss or > other problems as long as it's roughly repeatable. For example, a TV > antenna switch might not work well at 2.4 GHz but it would serve.
So like one of these? http://www.ebay.com/itm/2x1-Remote-Control-RF-Satellite-Dish-Coax-Cable-A-B-Switch-75-ohm-RG6-/271876767292?hash=item3f4d1e3e3c It's a satellite/cable A/B switch with an IR remote. You need to pair it up with an IR transmitter and some adapters to go from the F-connectors to the SMC or whatever your WiFi antennas use. The WiFi antennas are probably 50 ohm, while the TV equipment is designed for 75 ohm, so on top of losses due to insufficient frequency response you'll also have an impedance mismatch. Although not ideal, you'd use Y-cables and multiple A/B boxes to handle more than 2 antennas. (The branch circuits that aren't connected might reflect back a distorted signal. You might need to have each A/B switch have a terminator on the A position, and then through software you activate only one switch (flip to the B position) at any give moment.) There also seems to be gear made for hams that might be more applicable. Here's a kit for a 4-way switch: http://www.ebay.com/itm/KIT-4-1-remote-antenna-switch-DIY-cheap-SO-239-KIT-/261669572320?hash=item3cecb8cee0 I would assume already built equivalents exist as well. Like: http://www.ebay.com/itm/DX-Engineering-RR8B-HP-Remote-Antenna-Switch-Free-Cable-Offer-/201434273633?hash=item2ee66b1761 Those should be designed for 50 ohms, but are for way lower frequency. -Tom _______________________________________________ Hardwarehacking mailing list [email protected] http://lists.blu.org/mailman/listinfo/hardwarehacking
