ELECTRONICS
Satellite Signal Strength Meter with 10-LED Bar Graph
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CASE ANALYSIS
Scenario
A technician needs to align a satellite dish by watching a 10-LED bar graph that shows relative signal strength from the LNB.
Key decisions
- Use an LM3914 to drive ten LEDs in bar mode
- Rectify RF input with a 1N4148 detector and RC filter
- Power the meter from a 9V DC supply
When to reuse this
Reuse this netlist when building or documenting a handheld satellite finder or signal strength meter with LED bar display.
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