Configuration screen at LRO 30/8/2026:
Information about the device & software/datasheet:
I have recently acquired one of these to help me with interferometry. This device comes recommended by members of SARA who has used it so I have high hopes for it.
Following information on this device comes from the Leo Bodnor website, https://www.leobodnar.com/shop/index.php?main_page=product_info&cPath=107&products_id=393
Data sheet: https://www.astronomy.me.uk/wp-content/uploads/2026/08/LBE-1420-Datasheet-v1.1.pdf
This device outputs high purity signal with frequency locked to GPS.
LBE-1420 is perfect for both – accurate frequency calibration and RF reference use in mixers or multipliers.
Frequency stability of its output is defined by the accuracy of GPS satellite onboard Caesium references and approaches 1×10-12 or 0.000001 ppm.
Output phase noise is shaped by high quality internal TCXO, providing clean clock signal with sub-picosecond RMS jitter.
Multi-loop digital-analog PLL allows output frequency to be set to any value between 1 Hz and 1.1 GHz with infinite resolution. For example, 144800000.025Hz
LBE-1420 can often be pushed to operate beyond its guaranteed frequency range – all the way up to 1.5 GHz.
It can supply a vast range of common output frequencies such as: 10MHz, 100MHz, 24MHz, 25MHz, 27MHz, 100MHz, 1MHz and many more
Output signal is a 3.3V CMOS square wave with 50Ω source impedance. It can be used directly by most instrumentation and RF equipment.
LBE-1420 comes with a magnetic base active GPS antenna.
Output power level (at 10MHz, fundamental power channel): +11dBm
Typical phase noise at 10MHz:
-72 dBc/Hz at 1 Hz
-101 dBc/Hz at 10 Hz
-128 dBc/Hz at 100 Hz
-147 dBc/Hz at 1 kHz
-156 dBc/Hz at 10 kHz
-159 dBc/Hz at 100 kHz
-164 dBc/Hz at 1 MHz
Power draw through 5V USB is 250mA max
Rise/fall time of output signal at 10MHz is 300ps/260ps measured between 10% and 90% levels.
Operation requires presence of GPS signal, however temporary satellite signal loss is handled seamlessly with no frequency or phase jumps. Active or passive antennas are supported. An active antenna with 5 metre cable is provided but can be substituted by other common types. GPS acquisition time after power-up is around 30 seconds. If GPS signal is lost, digital PLL will maintains best estimated output frequency based on historical data. On reacquisition of GPS lock, output is seamlessly brought back in sync with GPS reference. Entry and exit of this frequency hold is glitchless.
Frequency setting is configurable via USB connection from Windows PC.
Satellite signal NMEA data telemetry is available via virtual serial port over USB connection.
GPS clock can be powered via USB-C connector from a PC, USB charger or USB power bank. LBE-1420 comes ready to use and configured for 10MHz output. USB connection to computer is required only for configuration changes. All settings are stored inside the device and maintain values when off. The SMA antenna connector voltage is 3.3V. Most active antennas marked as 3.3V or 5V will work.
Examples of use include:
10.000MHz, 1.000MHz or other frequency reference for lab equipment and instrumentation
reference for transmitter equipment – HAM equipment, propagation beacons, frequency markers, VHF, UHF and microwave converters.
reference for receiving equipment, RTL SDRs (28.8MHz) and band scanners
calibration source for radio receivers
master clock for audio and video equipment, DACs and studio recording gear
If you have any questions please contact us at support@leobodnar.com
Specifications:
Dimensions
69mm x 40mm x 12mm (including connectors)
Power
USB-C Connector
5V 250mA max
GPS Antenna Connection
SMA
Provides 3.3V 30mA max
Output
SMA
1Hz-1.1GHz 3.3V 50Ω
Square Wave
Certification
CE FCC UKCA
Warranty
2 years
Phase noise plot for default 10MHz output:
Allan Deviation
Configuration application for Winodws:
Configuration Software v1.07 – Click Here to Download
https://www.astronomy.me.uk/wp-content/uploads/2026/08/LBE-1420-Configuration-v1.07.zip
Latest Firmware – version 1.08 – Click Here to Download
https://www.astronomy.me.uk/wp-content/uploads/2026/08/firmware-doctor-300826.zip
Serial port driver for Windows 8/7/Vista/XP – Click Here to Download
https://www.astronomy.me.uk/wp-content/uploads/2026/08/LBE-1420.zip
Apple MacOS configuration software – Click Here to open App Store
Github repo for command line linux application:https://github.com/simontheu/lbe-1420
https://www.astronomy.me.uk/wp-content/uploads/2026/08/LBE-1420-Github-main-300826.zip