Originally posted by: frankgomez75
How bout, turning off circuit breaker to see if its still picking up a signal.
If not, than unplug all devices that transmit a wireless signal, phones, routers, etc.....
One by one plug each in to see which device was setting of the scanner.
But if you still pickup a signal even with the breaker turned off, than it would be hard to pinpoint where exactly the signal is coming from... a nearby home or maybe there is something in his house transmitting but I wouldn't know how you would actually locate it without doing a full complete physical search of the house.
QFT. Even with a good spectrum analyzer, you still will not be able to pinpoint where the signal is coming from. You can even pick up on a long range (<20 miles) 900mhz, 2.4ghz, or 5.8ghz transmission that is coming from a tower. The only way to know what the signal is is to setup a computer with a wireless card running in promiscuous mode that can capture all of the packet and use a program to reassemble them (like AppDancer..etc..) You can even use Ethereal to see the basics of the data stream. All that being said, just go home and slap your roommate for being stupid.