In honor of the "over the air" going to digital, I have a few antenna myths that I have heard over the years and would like to see you put to the test. I think Grant would have an easy time testing these. Here they are:
Railroad Track Antenna Extender - Prior to the days of Internet, I heard that someone could connect a wire from the antenna screw of an older style children's channel 14 walkie-talkie, and another person do the same miles away (I had heard anywhere from 1 mile to 1000s of miles) and they small milliwatt signal would travel the rail and allow them to talk as if they were feet away from each other.
Old Phone Line Antenna Extender - Same as the one above, but this involves connecting a no longer active phone wire to the antenna screw of a basic walkie-talkie, extending its range to miles.
** I doubt that any of these above would extend more than a few hundred feet, but I did try this myself and it was interesting. I had a pair of toy transistor Walkie-Talkies. They were old Radio Shack - Archer walkie talkies, the kind with a bright orange morse code key on it. I connected an old rotary TV antenna lead to the antenna screw of the walkie talkie (NOTE: I tried first using an alligator clip attached to the antenna lead and clamped to the telescoping aluminum antenna itself and this did not work). I set a tape recorder down next to the walkie talkie and set out walking through my neighborhood and beyond. About 1/8th of a mile beyond. Ever so often I would talk into my walkie talkie and would say (for example) I am at 123 Maple Street, 234 Walnut Street, etc... The results of my experiment were that it did indeed extend the range. **
Chain Link Fence UHF TV Extender - (you will have to test this one before the switch over to digital TV in Feb 2009) - Connect the UHF connector on older styles TVs to a chain link fence. See if does or does not improve a distant UHF signal. ** I actually used to do this as a kid. We had 3 local stations and 2 not so local UHF stations. I got tired of the UHF stations only coming in when the atmospheric conditions were favorable (even with a rotary antenna), so I tried this and to my amazement, it worked. We had a chain link fence with 3 sides that went from the back corner of our house, around a pool and to the other back corner of our house.
Pringles Can WiFi extender - Just go here to get all the info:
http://www.turnpoint.net/wireless/has.htmlTin Foil crumpled onto rabbit ears - Does it really improve reception?
"Fox Viewing Positions from Married With Children" (you will have to test this one before the switch over to digital TV in Feb 2009) - Can people's positions in a room affect UHF signal strength?
Final Antenna Challenge - I was in the Air Force for 8 years as a Satellite Communications technician. I have heard about people in remote areas of Alaska making their own Satellite dishes (everything except the low noise amplifiers) in the days when analog satellite TV was more prevalent. Some of these homemade dishes reported used a soup can as the signal collectors. Using information available on the web, can the Mythbusters team build a working satellite receiver? Maybe even finding schematics and building your own LNA?
OR
Can you come up with a way that would "super-extend (Mythbusters Style)" the range of toy walkie-talkies.