Peanutpaster says that receiving or scanner antennas that are not resonant at a specific frequency will not be efficient. A small portion of that is true. Resonance is extremely important for transmitting, but is not so important for receiving! A receiving antenna that has a large capture area will far out-perform a smaller antenna that is cut for resonant frequency! Think about the many times you have hung aluminum foil on you rabbit ears to improve the TV signals in your house. That is called capture area. The rabbit ears were supposedly already resonant! I am an Amateur Radio Operator of 32 years and my forte is antennas. I have a 20 foot piece of wire outside my house that I have connected to my scanner and have extremely good reception from VLF to UHF. I wrote a paper on the VHF Big Wheel many years ago and it still is in publication to this date. I have no intention of making this person look bad, rather, I would like to dispell his misinformation and give you the opportunity to experiment for yourself. You experiment and decide for yourself. Hope this info helps. I would be happy to answer any and all questions that I can. Info on all kinds of antennas is available on the internet. Just look it up and have a ball!! Thanks and 73 Mike Stewart N5DAR