My oldest son, who just turned 15, passed the first two levels (out of 3) of Ham Radio exam at one sitting.
There are three levels: Technician, General, and Amateur Extra. He studied only for the first two, and he aced both tests 35/35.
We're very proud of him, as one might expect.*
Here is a picture of the 8 guys who only passed the Technician exam -- they all tried the General exam and failed. So it's not drop-dead easy or anything like that.
You're allowed to take the next level of test for free, until you get a failing grade. My son tried the Extra exam (which he didn't study for at all) and only got 20/50. But that was expected. When you study ZERO for something, the only way to pass would be A) if it were just common sense or common knowledge, or B) if you had some sort of infused knowledge.
I guess we'll call this one of his homeschool classes -- hahaha.
Here are some sample questions from the Extra exam:
E9G08
8. What is the process of normalization with regard to a Smith chart?- A. Reassigning reactance values with regard to the resistance axis
- B. Reassigning impedance values with regard to the prime center
- C. Reassigning prime center with regard to the reactance axis
- D. Reassigning resistance values with regard to the reactance axis
E2B06
9. What is vestigial sideband modulation?- A. Narrow-band FM modulation achieved by filtering one sideband from the audio before frequency modulating the carrier
- B. A type of modulation in which one sideband is inverted
- C. Spread spectrum modulation achieved by applying FM modulation following single sideband amplitude modulation
- D. Amplitude modulation in which one complete sideband and a portion of the other are transmitted
E4D11
10. Why are odd-order intermodulation products, created within a receiver, of particular interest compared to other products?- A. Odd-order products of two signals in the band of interest are also likely to be within the band
- B. Odd-order products overload the IF filters
- C. Odd-order intermodulation produces three products for every input signal within the band of interest
- D. Odd-order products are an indication of poor image rejection
E7G10
5. What absolute voltage gain can be expected from the circuit in Figure E7-3 when R1 is 1800 ohms and RF is 68 kilohms?E9D04
6. Why should an HF mobile antenna loading coil have a high ratio of reactance to resistance?- A. To lower the radiation angle
- B. To minimize the Q
- C. To minimize losses
- D. To swamp out harmonics
* Our girls (and our 2 year old boy) excel at other things not related to Ham Radio (hahaha) -- I don't mean to take away from them at all, it's just that today was Dominic's day in the sun, if you know what I mean. In other words, my usual warnings apply: If I say "Pizza is good" you must not logically conclude that I believe "hamburgers are bad". I'm not shy. If I believe hamburgers are bad, I'll certainly let you know. I don't beat around the bush. I know I'm off on a tangent here, which is why this is a footnote. But I get real tired of logical fallacies, especially jumping to conclusions or putting words in my mouth. Because it's so useful to rational discussion,
everyone should study Logic at some point.