Beam and modem: what they have in common

1. Step 1. Beam — is part of — Hyperboloid structure. Straight bars form a curved surface.
2. Step 2. Hyperboloid structure — includes — Shukhov Tower. A hyperboloid tower.
3. Step 3. Shukhov Tower — has part — Antenna. A radio tower.
4. Step 4. Antenna — is part of — Doppler radar. An antenna.
5. Step 5. Doppler radar — has part — Digital signal processor. It picks out the Doppler shift.
6. Step 6. Digital signal processor — is part of — Modem. Signal processing in high-speed modems.

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