Intro: Free TV! the Makings of a Frankenstein Antenna
Shed (check), free energy (check), adjustable solar mount (check), free Tv (?). Okay, my task is still not complete. I need to be able to watch TV in my Shed-cave without the intrusion of the cable or satellite companies. A true off-the-grid grid experience means I need to tap into the OTA channels.
So I went back to school, The University of Google, to see how I could possibly make this happen. I was immediately overwhelmed (Ooh, ha, ouch) with information about whiskers length (4 bay design or 3 bay), balun, ohms, signal strength, UHF, VHF, transmitters, and such and such.
After soothing my throbbing brain, I ask myself, what are my needs and what will work for me? Afterall, I'm not trying to divorce my satellite company (my house will still be married to Uverse), I just want to watch TV for free in my Shed-cave.
Step 1: Your Location
PLEASE NOTE: Before determining what type of antenna you will be making (bowtie, whiskers, penny loop, etc), find out how far away you are from the TV stations you want to watch.
I used this site " www.channelmaster.com/Antenna-Selection-a/134.htm" to get an idea of the stations close to me. I soon realized that most of the stations were about 7 to 43 miles from my location. In total, I had around 99 channels at my disposal. What was even more exciting (hooray) Fox, CBS, NBC, and CW were 7 miles away.
What I loved about this site is that it gave me feedback about the signal strength for each channel in relation to my location. Also, it recommended the location of the antenna for the best channel reception.
I now realized that I did not need a super antenna to get what I need. I'm not out in the boondocks somewhere, I was close to civili-station.
Step 2: The Hunt
From what I decided, I would need:
- 1 piece of pressure treated
- Some bare copper wires
- Galvanized or external screws
- Possible some foil sheeting
- A piece of ply to mount the sheeting
- A means to mount the antenna
Not wanting any of the funds set aside to finish my solar experience to be diverted to building this antenna, I began the hunt.
I soon saw leftover Direct Tv stuff (I realized I still have Direct Tv anxieties from years ago).
- The dish, cables, and splitter.
I had leftover electrical wiring that I could get the copper from. I had everything but the balun. However, not to be deterred, like a kid in a candy store, I persisted.
Step 3: The Little Engine That Could
Word of caution: This instructable is not about an elaborate design for a one of a kind antenna. It's about doing something that worked for me. I know the specs may be off; however, I was mainly concerned about the result more than the method.
- I measured the diameter of the dish and cut the 2x4 to length. My plan was to mount it on the arm of the dish and used the dish as a reflector. I then marked 4 lines around 3" apart. On those lines, I marked 2 places for the screws and predrilled.
- After stripping and straightening copper wires I cut 4 pieces to 14" in length and bent them in half.
- I then cut 2 pieces 17" in length
- I further cut unstripped 4 wires about 4 inches in length
- The pictures showed how I chose to connect it all together.
In the process, one of the wires were accidentally cut a little bit shorter. I decided to use it anyway.
Step 4: Chitty Chitty Bang Bang
The entire assembling took around 40 min.
I stripped the wire separating the inner piece from the outer. I then attached an alligator clip to each part of the cable, and then to the middle of my Frankenstein antenna.
CAUTION: Please make sure that the outer wires of the cable do not touch the inner piece.
Like a child going to Disneyland, I impatiently wait as the TV scans for channels...Holy smokes! It's alive.! Frankenstein is alive!
I went from 0 to 89 in less than 60 sec. Including some FM channels.
Step 5: The Final Countdown
Not wanting to clutter the Shed-cave, I needed to mount Frankenstein outside. This is where the Direct TV (aargh) dish came into play.
I mounted Frankenstine on the dish and mounted the dish to the side of the Shed-cave. Frankenstein was initially mounted vertically. After trying numerous angles, and elevation, even attaching sheet metal to the front of the dish face, the most channel I got was 86. This was still short of what I received when Frankenstein was inside. So I decided to call it a day.
The next day, I tried laying Frankenstein horizontally, and instead of attaching it immediately with two screws, I allowed it to swivel by using one screw.
Left, right, up, down, in out...Do the hokey pokey, and I turn myself around...Eureka! 103 channels. The Full 99 plus 4 FM.
All this without the balun.
I scrolled through the channels and checked the signal strength and I was satisfied with the outcome. Some channels were weak and that was ok with me. The ones I wanted were coming in smooth.
Next was a more permanent installation and the grounding of Franky.
CAUTION: Be certain to ground the antenna. For me, it was not an option. I had a lightning strike hit last year at the back of my old shed.
I don't know the science behind the wiring of the antenna. Maybe anything I did would work because of my proximity to the towers. Nevertheless, the cost was $0 and I'm rich in channels. Probably I will experiment with the balun to see how much increase in signal strength I will get.
That's all folks! I hope this is of some help to someone. Feel free to share any suggestion or observation you may have.