STA-403 Mushroom Head GPS / GNSS Antenna

High‑Performance GPS Antenna for NTP Servers

The STA-403 Mushroom Head Antenna is engineered for precision time synchronization systems such as NTP servers, delivering stable and accurate GNSS signal reception even in demanding environments. With its high gain, low noise figure, and ultra‑low loss GL200 coaxial cable, the STA-403 ensures reliable long‑distance performance up to 50 meters without the need for a signal repeater.

Key Advantages for NTP Server Integration

• Multi‑Constellation Support: GPS (1575 ± 5 MHz), BeiDou (1561 ± 4 MHz), GLONASS (1605 ± 8 MHz)

• High Gain & Low Noise: ≥ 35 dB amplifier gain, ≤ 1.5 dB noise figure for stable timing signals

• Long Cable Runs: Ultra‑low loss cable with 0.6–0.65 dB/m attenuation, ideal for rooftop installations

• Rugged & Reliable: Waterproof, corrosion‑resistant housing with IP65 protection rating

• Flexible Installation: SMA, BNC, TNC, or N‑Type connectors with threaded M24 × 1.5 mount

• Wide Operating Range: Designed for extreme conditions from ‑45 ℃ to +85 ℃

Why Choose STA-403 for NTP Servers?

Accurate time synchronization depends on clean and stable GNSS signals. The STA-403 antenna is purpose‑built to deliver those signals with minimal loss and maximum reliability, making it the perfect choice for network operators, data centers, and broadcast infrastructures that rely on precise timing.