With 2024 winding down, OnAllBands is putting the pedal to the metal (another not-so-subtle reminder that Summit Racing Equipment is DX Engineering’s parent company) to highlight the many new products that have recently been added to DXEngineering.com.
Today, we’re showcasing an innovative SDR receiver that one user called “good to go out of the box” and “the most user-friendly experience I’ve had.”
Kiwi SDR2 Independent SDR Network Receiver
The Kiwi SDR2, created by New Zealand ham John Seamons, ZL4VO/KF6VO, is a standalone SDR (software-defined radio) receiver that operates across a frequency range of 10 kHz to 30 MHz, encompassing VLF to HF bands.
Among other benefits, this latest version includes an enhanced RF front end and the addition of a digital attenuator. Users can expect improved processing speed and reception over its predecessor. The device also provides easier access to its minicomputer’s SD card slot.
Boasting ease of use and comprehensive features, the Kiwi SDR2 attaches to your local network and is optionally accessed through the Internet. A browser is used to connect to the user interface. The receiver comes pre-installed with the OpenWebRX web interface and features an integrated GPS receiver (used, among other functions, to calibrate the SDR frequency). Most other SDRs only generate raw IQ data and need to be connected directly to a PC or laptop running OS-specific, installed software.
Browsers supported include Firefox, Chrome, Safari and Opera on Windows, Linux, and Mac. (A version of the interface for mobile devices is under development.) Until then, the browser interface will work on iPad and Android devices with a large enough display.
The Kiwi SDR2 supports up to four simultaneous connections, each with their own independently controlled audio and waterfall channels. Up to four users can log on to the Kiwi SDR2 at the same time and work completely independently of each other over the entire bandwidth of 30 MHz.
An extension interface allows advanced signal decoding directly in the browser interface without installing additional software. The most popular are the integrated WSPR decoder and Time Difference of Arrival (TDoA) signal direction finder.
Other features of the Kiwi SDR2 include:
- 14-bit ADC for excellent dynamic range
- BeagleBone Green board preloaded with Debian 11.9 and all necessary SDR software
- Sturdy metal case with ample cooling holes for heat dissipation, making it suitable for continuous operation
- USB ports, an Ethernet connection, and a 5.0 VDC input. The Ethernet port is essential for connecting the SDR to a LAN, enabling operation via a web browser.
- Three SMA sockets for the GPS antenna, an external clock input, and the RF input from the antenna
- Switching power supply shield to minimize RF noise, a gas discharge tube for surge protection, and a 0 to 31.5 dB electronic attenuator for handling strong signals
- Includes short SMA-to-SMA patch cable and GPS antenna
The setup process involves connecting the GPS antenna, power lead, and Ethernet cable to the home network. Once powered on, users can access the device via a local IP address or through an Internet proxy. The admin page allows for various configurations, including security settings and public sharing options. The control panel on the display lets users adjust frequency, mode, and band, and use built-in data decoders.
NOTE: DC power cable or supply is not included. 5 VDC at 1.5 A minimum to the 2.1mm input is required (2.1mm barrel connector). The manufacturer notes that it is important that the DC power to the KiwiSDR Network Receiver is well filtered to preserve the high dynamic range and low noise floor of the receiver.
There are more than 700 KiwiSDR receivers directly accessible via the Internet worldwide. To listen in, visit http://rx.kiwisdr.com/ where you’ll find a comprehensive list and location map.
Find much more information about the KiwiSDR Independent SDR Network Receiver and place your order today at DXEngineering.com.
