Total posts : 45366
well i managed to build a complete antenna and test it out today. here is a photo of the antenna: http://i.imgur.com/G5ZlF.jpg
sorry for the poor quality, i had to use my phone to take the picture. you cant even see the taps in the photo but they are at the base where the green alligator clip is attached.
i had the antenna setup on the second floor of a sort of stripmall. the mall is enclosed on the front side so the there is no direct line of sight when you leave the strip mall but i still managed to get about 75m range but it started to cut out. i was using a really low quality $5 thriftstore receiver. my digital receiver (grundig) is busted right now but it typically gets about 1/3rd additional range over junky receivers.
i grounded the transmitter by running a cable from the ground lead of the antenna out into the ground pin of a wall outlet. assuming i am going to put the transmitter/antenna on my roof, how should i go about grounding it? there are some exposed metal pipes up there for,i think, the building’s AC unit. should i just run a wire to that? would it be better if i create a ground plane under the antenna made out of chicken wire or something?