The materials that I used included a satellite dish antenna, some olive oil, and a discarded birthday balloon made of silvered Mylar that I had salvaged from a local dumpster. The oil was used for adhesion because of it’s dense viscosity and sticky nature towards the thin Mylar foil but a person could use a spray adhesive instead for a more permanent application.

I cut the balloon along the side so that the Mylar film could be spread out into a flat sheet. Next I cleaned the surface of the antenna before pouring a small amount of oil on the antenna dish and spread it by hand evenly on the surface. Then I laid the foil over the oiled dish surface and smoothed it out with my dry hand. I tucked the outlying foil under the dish edges to prevent light winds from lifting it off of the dish. Then I pointed the dish at the sun.

For optical firecraft I use dark colored tinder because it absorbs heat better. I prefer using fibrous material that I press together to create a flat surface onto which the reflected light can focus. You can place the palm of your hand above the dish briefly to find the focal point of the light rays so that you can know where to position the tinder. After a few moments smoke began to appear from the tinder bundle and in short order an ember began to glow whereupon I removed it and blew it into a flame.

How practical is this method? Much easier than most primitive methods used in the woods but keeping in mind that these materials are readily available in an urban setting where it would most likely be used. Of course, you’ll also need sunshine!

Having spent a good portion of my career in the aerospace/defense industry I have spent some time around parabolic “dish” antennas and have applied this reflective principal to my cell phone on occasions.

Years ago I participated as an Assistant Scout Master at a camp. The parents of one of the Scouts helped transport our troop members and during the week took a vacation along the nearby California coast. At the end of the week they shared this experience with me. At one point the husband needed to make a call but had trouble finding a signal. He asked himself “what would Ken do?”. He looked for a parabolic feature in the landscape and found a rock with a concave surface. He placed the phone at it’s focal point and “bingo!” was able to connect his call.

I couldn’t find a signal at my son’s place so I found a pan and put my phone inside it. Surprisingly, even without a registered signal strength bar showing I was able to connect my call and have the critical items delivered.

This parabolic effect has worked for me and you might keep it in mind if you find yourself in a similar situation. I’m sure that there are other techniques that I would love to hear about so please share your successes in the comments section below so that we may all be better prepared for this eventuality.

I have an old radio with a broken antenna that I often use to keep me company while I work. Sometimes the stations that I prefer to listen to broadcast from a distant city and have marginal reception that can wane in and out depending on weather and upper atmospheric conditions. While preparing my work area, I happened to plug an extension cord into the same electrical outlet as the radio and the audio volume came alive. I was very surprised and tested this phenomena by unplugging and replugging the extension cord with remarkable results. Then I moved the extension cord around in various positions to optimize it’s effectiveness.

I’ve seen coat-hangers and tin foil used in the past, but this method had better results for me. Ham Radio Operators are aware of proper antenna lengths needed to receive certain frequencies as well as the harmonics of other compatible lengths. I happened to use a 15ft. extension cord when tuned to mid-range FM frequencies. But in the end you can try different length extension cords and maneuver them in different positions.

So, if you need to boost your antenna, try this method in different combinations for best results.