- 1575.42Mhz
GPS
- NAN1001-dat - NAN1019-dat == both are active GPS antenna
antenna connector - IPEX-dat
tuning
- Measuring GPS Antenna Performance (Signal Quality)
To measure how well your GPS antenna performs (signal strength, accuracy, etc.):
✅ Use GPS Diagnostic Apps or Tools: Android: Use apps like:
- GPS Test
GPS Status & Toolbox
- Testing GPS Antenna Connection (for hardware troubleshooting)
If you’re dealing with a custom GPS module (e.g., on a drone, Raspberry Pi, or embedded system), you may want to check if the antenna is electrically working:
✅ Use a Multimeter:
- Check for continuity in the antenna cable.
- Measure voltage at the GPS antenna port (usually 3.3V or 5V for active antennas).
For active antennas (with a built-in amplifier), make sure power is being delivered.
- Physical Size / Frequency / Type Measurement
If you're trying to measure or identify a GPS antenna for replacement or tuning:
GPS Frequency bands:
- L1: ~1575.42 MHz (most common)
- L2: ~1227.60 MHz (for dual-band GPS)
Use a spectrum analyzer or antenna analyzer to test bandwidth and impedance, if you're in a lab or technical environment.
Measure impedance (should be 50 ohms) if connecting to a GPS receiver with RF tools.
- Antenna Position Tuning (for best reception)
Use real-time tools to measure signal changes based on position/orientation. Walk around, move the device, or try different placements while watching satellite SNR and number of satellites.