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GPS L1 (1575.42 MHz)

GPS civilian C/A code · SBAS (WAAS/EGNOS) · L1C new civilian signal

Frequency Range1575.42 MHz (±12 MHz)
Wavelength19 cm
ITU / Standard—

Applications

  • →GPS civilian C/A code
  • →SBAS (WAAS/EGNOS)
  • →L1C new civilian signal
  • →Multi-GNSS: Galileo E1, BeiDou B1C

Propagation Characteristics

Receives signals from satellites at ~20,200 km altitude. Typical received power: -130 dBm. Requires clear sky view — blocked by buildings, foliage, and terrain.

Regulatory Notes

Protected RNSS allocation. Transmitting on L1 frequency without authorization is illegal in all jurisdictions. L1 band protected by ITU Radio Regulations.

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