DXPatrol v3.0 GPS Disciplined Oscillators (GPSDO) deliver laboratory‑grade frequency precision by disciplining a high‑quality OCXO with continuous GPS correction. Designed for applications where absolute accuracy and long‑term stability are essential, this third‑generation model provides exceptional performance in a compact, easy‑to‑deploy package. A GPSDO ensures its output never drifts over time, which is crucial for RF, timing, measurement, and synchronization tasks across both amateur and professional environments.

Using a U‑Blox 7N GPS reference driving a 10MHz CTI OCXO (0.05 ppb* stability), the DXPatrol v3.0 generates up to four programmable independent LVCMOS outputs from 350kHz to 350MHz, giving engineers and radio operators the flexibility to feed multiple devices from a single, ultra‑stable source.

The clear OLED display provides instant visualization of position, satellite lock status, and time information. Multi‑constellation support—GPS, GLONASS, and Galileo—ensures strong reception and rapid lock‑in under challenging conditions.

For users who need highly accurate system time without relying on the Internet, the DXPatrol GPSDO v3.0 can act as a standalone precision time source. Operators can synchronize a PC directly to the GPSDO, making it ideal for isolated networks, secure installations, DXpeditions, remote stations, and any environment requiring dependable, offline timing for digital modes such as WSJT.

Accessing the GPSDO is simple: scan the on‑screen QR code with a smartphone and instantly connect via Wi‑Fi to a built‑in configuration and status webpage. The unit operates from any 6–14VDC supply via a standard 5.5/2.5mm barrel connector, drawing 350mA during initial warm‑up and stabilizing at approximately 270mA.

The DXPatrol GPSDO v3.0 is ideal for amateurs working with weak‑signal digital modes (FT8, WSPR, JT9), microwave and millimeter‑wave bands, SDR systems, and beacons, where even small frequency drift can degrade performance. Its stable 10MHz reference ensures precise tuning for high‑frequency transverters, consistent calibration for test equipment, and reliable synchronization in remote or Internet‑isolated stations. From EME enthusiasts to portable microwave rovers, the GPSDO v3.0 provides the rock‑solid frequency foundation advanced operators depend on.

Includes:

• (1) DXPatrol GPSDO Ver. 3

• (1) GPS Antenna, with 9.84ft. (3m) Cable

Additional Features and Specifications:

• Ultra‑accurate UTC clock

• Wi‑Fi connection (AP or Client) for NTP or software upgrade

• Easy operation via smartphone/PC, WiFi, or an APP

• QR‑code–based easy Wi‑Fi connection

• Local GPS coordinates display

• NMEA information access via front USB connector

• Rotary knob for settings and navigation

• Wait / Lock / Delta* status indication

• Multi‑constellation receiver: GPS, Galileo, Glonass

• Five outputs from 350kHz to 350MHz + 1 PPS (pulse per second)

• Four independent LVCMOS outputs

• Dedicated 1 PPS output

• Full lock time ~1 minute after power‑on

• Operating temperature range: 0 °C to 75 °C

• Supply voltage: 6 - 15VDC

• Current draw: 350mA during first minute, 270mA after GPS lock

• Dimensions (W × H × D): 3.31 x 0.98 x 2.80in. (84×25×71mm)