I'm 6% of the way through the Extra exam. The material is more difficult/esoteric and there are fewer explanations in the Ham Test Online course. I'm memorizing some answers without really understanding what they mean.
Here's one from this morning:
What is the equivalent lumped-constant network for a hairpin matching system on a 3-element Yagi?
- Pi network
- Parallel-resonant tank
- Pi-L network
- L network
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As of now I don't have a clue what this question is talking about. Well ok I know it's related to antennas because a Yagi is a directional antenna. And it seems to be about matching the antenna. I don't know what a hairpin matching system or L network, or Pi network is. I have memorized that "L Network" is the right answer though.
I do use the 2012 ARRL Handbook to fill in the gaps, so later tonight I'll have to investigate hairpin matching systems, L networks, Pi networks, and more to figure out what this is all about.
In any case I'm still being exposed to Amateur Radio concepts. Being able to pull facts from memory is not a bad thing. When I actually start setting up a station or get on the air this fact base that I'll start from can only help and I'll have all the licensing out of the way.
I have to say it's tempting to just run out this weekend and take the technician and general which I know I could pass with flying colors. However I'm still motivated to take a shot at zero to Extra in one day even if it's just for bragging rights.
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