NOTE: This article only applies to the FLEX-6000 GPSDO since it is a GPS-only system. The FLEX-8000s utilize the GNSS constellation of satellites, of which GPS is a subset.
An external GPS antenna can be used with the FLEX-6000 GPSDO module. To replace the supplied indoor GPS antenna, it will need to be a medium-gain (26 dB or higher) active GPS antenna. Most GPS antennas require 3.3 to 5 volts of DC power on the coax to power the antenna preamp, and the FLEX-6000 GPSDO provides this voltage.
The GPS antenna connector on the FLEX-6000 is an SMA-type connector.
Install the external antenna as per the manufacturer's recommendations.
Below are examples of external GPS-only antennas used successfully with the FLEX-6000 GPSDO module.
- Tram 1655 8' Marine GPS Antenna
- PCTEL GPS-TMG-26N
- PCTEL 3978D-DH (high gain for long cable runs)
- Motorola ANTA1 (GCNAC1232A)
- Lucent KS24019 L112A Amplified GPS Antenna
- GlobalSat AT-65SMA