Other Tools and Accessories

These items are usually in stock for immediate delivery at no additional shipping charge when purchased with an SDR receiver.

  • 3-1200 MHz Directional Coupler

    0 out of 5
    • 3-1200 MHz Directional Coupler
    • Inexpensive network analyzer when
      used with an SDR and Noise Source.
    • Used for antenna tuning analysis (reflectometer).
    • Gold plated SMA connectors.
    • Built-in termination load.
    $29.95
  • Broadband Noise Source

    0 out of 5
    • Broadband Noise Source.
    • Used for tuning filters and duplexers.
    • Used as a Network Analyzer RF source.
    • Recommended accuesory: SMA 50 ohm load.
    • 12V 2.1mm coaxial power supply NOT included.
    $29.95
  • 19 %

    Leo Bodnar GPSDO (reference clock unit)

    0 out of 5
    • Dual outputs to control two Airspy units
      or one Airspy and one Spyverter*
    • One of the most compact units on the market
    • Powered via USB or coaxial jack
    • Comes with carry case, GPS Antenna, and USB cable
    • Connection cable in stock above
    • More info: Manufacturer's website
    • Note: Manufacturer's price is shown in Pounds. Our price is the equivalent in Dollars.
    • * Spyverter control requires a hardware modification
    $245.00 $199.00
  • 15 %

    LeoNTP (Network Time clock)

    0 out of 5
    • True Stratum 1 NTP Compatible
      Master Clock / Time Server.
    • Can serve tens of thousands of clients.
    • Very cost effective
    • Supports NTP/SNTP
    • Front OLED Display for time display and configuration
    $375.00 $320.00
  • New

    Raspberry Pi+ GPS Expansion Board

    0 out of 5

    This is an GPS expansion board designed specifically for the both the version 1,2 and 3 Raspberry Pi+ Models.

    This board is designed for applications that use a GPS connected via the serial ports to the Raspberry Pi such as timing applications or general applications that require GPS information. To facilitate PPS the time pulse output is connected to a GPIO so you can utilize this board to give NTP PPS discipline. PPS does not work without an antenna.

    This board is equipped with the latest Ublox MAX-M8Q positioning module and high quality filtering capacitors and inductors throughout. The MAX-M8Q features a RTC Crystal, very low power usage and high performance. Although not a true timing module it is more than adequate for a Pi based NTP Server. Its worth noting the module can, with a serial command, be placed in “Stationary” dynamic mode which is the default mode for the much more expensive timing modules.

    The board features an SMA connector for an active patch antenna (see related products) power and PPS LED's. On the top is a super capacitor which can be used to retain any custom settings in the event of power loss (If the module is commanded to do so ). The MAX-M8Q is connected via serial to the Pi and the PPS is connected to GPIO18 (pin 12).

    A 2×20 way header is supplied and 2 suitable standoffs providing a very robust solution. The board follows Raspberry Pi's HAT physical layout with camera and display port notches. It is possible to stack additional HAT's on top of this board with the stacking header.

    To use this board to make a Stratum 1 NTP Server please follow these instructions here : http://ava.upuaut.net/?p=726

    Datasheet available here

    For the communication protocol see the u-blox 8 / u-blox M8Receiver DescriptionIncluding Protocol Specification.

    (The command to save settings is CFG-CFG)

    $37.95
  • SMA 50 Ohm 10 dB PAD (attenuator) – GOLD

    0 out of 5
    • Adds 10 dB of attenuation when signals are too strong.
    • Useful with the preamps for a net 10 dB gain.
    • Works inline with the Airspy or Mini
    $14.95
  • SMA 50 Ohm Load – GOLD

    0 out of 5
    • Used for directional couplers or other SMA terminations.
    • Gold plated.
    • 50 Ohm.
    $6.95