GPS Disciplined Reference Oscillators

Mini Low Jitter Precision GPSDO Reference Oscillator (1 Port)

A new mini version of Leo Bodnar's popular low jitter GPS Clock - designed for Users with a limited budget or space restrictions, whilst still delivering accuracy and performance.

  • Programmable Frequency 450Hz - 800MHz

  • Stability 1 ppb 1E-9 <60 sec Locktime

  • 1 SMA Output Connector

  • Ideal for use with SDR Receivers

Like its big brother, the  Mini Precision GPSDO Reference Oscillator can be used as an Universal Reference Clock for most other Instruments and Applications which up to now would require a bulky and expensive Rubidium Clock.

SDR-Kits recommends either version as the ideal frequency standard for supplying an external reference clock signal to the DG8SAQ Vector Network Analyzer to make Frequency and Frequency Difference measurements with accuracy  approaching 1e-10 and frequency  measurements (dF) in the mHz (milli Hertz) and even down to the uHz (micro Hertz) region.

Also, the Mini GPSDO can be used as an external clock for the SDRplay RSP2 or RSP2pro with our GPSDO - RSP2 External Clock Cable

The Mini GPSDO offers:

  • Long term stability of output signal is defined by high accuracy of GPS Caesium references and approaches 1x10-12

  • Short term signal quality is defined by internal TCXO clock source providing high-quality, low phase noise clock signal with sub-picosecond RMS jitter.

  • Digital PLL allows main output reference frequency to have almost any value between 400Hz and 810MHz.

  • Output signal is 3.3V CMOS levels with 50 Ohms characteristic impedance. Output drive level can be adjusted.

  • Output power level (measured at 10MHz, fundamental power channel):

  • +13.3dBm, drive setting 32mA
  • +12.7dBm, drive setting 24mA
  • +11.4dBm, drive setting 16mA
  • +7.7dBm, drive setting 8mA
  • Powered via mini USB connector from a PC, USB phone charger or USB power bank. USB connection to Windows PC is required only for one-off configuration.
How to make high accurate precision frequency with the VNWA Thanks to Kurt Poulsen for preparing this report and sharing his expertise.

How to set up the Mini GPSDO as an External Clock Reference for the VNWA 3EC:  Guide to setting up Mini GPSDO as external reference clock, instead of  internal VNWA TCXO when taking VNWA measurements.

         Contents:      

        -Mini Precision GPSDO Module (73mm x 40mm x 17mm 0.05 kg)

        -GPS Magnetic Antenna with 3m Coax Cable and fitted SMA male plug

        -12 month Mfg Warranty

          -Mfg Product Support info

       


      Accessories also available from SDR-Kits:



      SDR-Kits is an Authorised Distributor for the Leo Bodnar Ltd Precison GPSDO Reference Oscillator

      Also available from our Authorised Distributor for Japan: ICAS Enterprises  www.ICAS.to 

      £83.50, incl VAT: £100.20

      Indicative prices in EURO: €96.02, incl VAT: €115.23

      Indicative prices in USD $110.64

      Low Jitter Precision GPSDO Reference Oscillator (2 Port)

      Precision Frequency Clock for the VNWA 3EC and many other applications

      • Programmable Frequency 450 Hz - 800 MHz  

      • Stability 1 ppb 1E-9 <60 sec Locktime  

      • 2 BNC Outputs

      • Complete with storage case and GPS Antenna

      Manufacturered by Leo Bodnar LTD, the Low-jitter GPS-Locked Precision Frequency Reference Oscillator can be programmed to two output frequencies between 450 Hz up to 800 MHz with a stability of better than 1e-9 (1 part per billion (ppb) within 1 minute after achieving lock to the high accuracy GPS Satellite Network which is controlled by a Caesium Clock with accuracy approaching 1e-12

      USB powered, this instrument is the ideal frequency standard for supplying an external reference clock signal to the DG8SAQ Vector Network Analyzer to make Frequency and Frequency Difference measurements with accuracy  approaching 1e-10 and frequency  measurements (dF) in the mHz (milli Hertz) and even down to the uHz (micro Hertz) region.

      Light and portable, the  Precision GPSDO Reference Oscillator can be used as an Universal Reference  Clock for most other Instruments and Applications which up to now would require a bulky and expensive Rubidium Clock.

      • Two synchronised low-jitter reference clocks locked to GPS signal, Digital PLL allows main output reference frequency to have almost any value between 450Hz and 800MHz.

      • Two outputs can be individually enabled and set to different frequencies. Second output frequency depends on the first output. If both outputs have the same frequency their relative shift can be adjusted. This can be used, for example, to generate two signals with 90° phase shift for use in I/Q mixer.

      • Both output signals are at 3.3V CMOS levels with 50 Ohms characteristic impedance. Their output drive levels can be adjusted.

        Output power level (measured at 10 MHz, fundamental power channel):
        +13.3dBm, drive setting 32mA
        +12.7dBm, drive setting 24mA
        +11.4dBm, drive setting 16mA
        +7.7dBm, drive setting

        • Short term signal quality is defined by internal 0.5 ppm TCXO clock source providing high-quality, low phase noise clock signal with sub-picosecond RMS jitter
        • USB Powered or +5V External PSU.  Current drawn:  Max: 0.27 Amp

        How to make high accurate precision frequency with the VNWA Thanks to Kurt Poulsen for preparing this report and sharing his expertise.

        How to set up the GPSDO as an External Clock Reference for the VNWA 3EC:  Guide to setting up GPSDO as external reference clock, instead of  internal VNWA TCXO when taking VNWA measurements.

              Contents:

              -Precision GPSDO Module (100mm x 60mm x 27mm 0.13 kg)

                -GPS Magnetic Antenna with 3m Coax Cable and fitted SMA male plug

                  -Plastic Storage Case (230mm x 190mm x 40mm 0.53 kg)

                    -12 month Mfg Warranty

                      -Mfg Product Support info

                      Accessories also available from SDR-Kits:


                  SDR-Kits is an Authorised Distributor for the Leo Bodnar Ltd Precison GPSDO Reference Oscillator

                  Also available from our Authorised Distributor for Japan: ICAS Enterprises  www.ICAS.to 

                  £125.00, incl VAT: £150.00

                  Indicative prices in EURO: €143.75, incl VAT: €172.50

                  Indicative prices in USD $165.63


                  Comparison Chart - GPS Disciplined Reference Oscillators


                  Feature                                                                      

                  Mini GPSDO (One Output)                                            

                  Standard GPSDO (Two Output)

                  Stability

                  +1E-9 within 1 min after GPS Lock

                  +1E-9 within 1 min after GPS Lock

                  Frequency Range

                  400Hz – 810MHz programmable

                  400Hz – 810MHz programmable

                  Reference Clock Outputs and Connector Type

                  1 SMA Output Connector

                  2 BNC Outputs programmable independently with restrictions

                  Output Level

                  4 step programmable +7.7 +13.3 dBm

                  4 step programmable +7.7 +13.3 dBm

                  USB Power Supply

                  5V USB-cable to PC or Charger

                  5V USB-cable to PC or Charger

                  External Power Supply

                  Not available

                  Ext DC +5V - 15VDC Power connector fitted

                  Dimensions

                  73mm x 40mm x 17mm 0.05 Kg

                  110mm x 60mm x 25mm 0.12 Kg

                  Package Contents

                  Mini GPSDO, GPS Antenna, USB Cable

                  Standard GPSDO, GPS Antenna, USB Cable, Plastic Storage Box

                  Typical Application

                  Clock Source for applications requiring a single Reference Clock

                  Ham Station Reference Clock Source 10 MHz for Test equipment and 24 MHz for RSP1 or K3 or other Rig