Light bulb
Q: How many amateur radio operators does it take to screw in a 100W lightbulb? A: Three. One to solder the lightbulb on the end of the coax, one to check the SWR, and one to measure the signal strength and plot the radiation pattern.
_------_
-~ ~-
- _ -
- |> -
- |< -
- |> -
- || -
- || -
-__||__-
|______|
<______>
<______>
\/
_------_
-~ ~-
- _ -
- |> -
- |< -
- |> -
- || -
- || -
-__||__-
|______|
<______>
<______>
\/