SDRplay RSP 2: A Radio Spectrum Processor

Introduction to SDRplay RSP

The SDRplay RSP 2 is a high-performance, cost-effective radio spectrum processor designed for a wide range of applications, from amateur radio to professional monitoring and spectrum analysis. This versatile device offers a frequency range of 1 kHz to 2 GHz, a 14-bit ADC, and a built-in low noise figure preamplifier, making it an excellent choice for those looking to explore the world of software-defined radio (SDR).

Request PCB Manufacturing & Assembly Quote Now

Key Features of the SDRplay RSP 2

The SDRplay RSP 2 comes packed with a host of features that make it stand out from other SDR devices in its class:

Feature	Description
Frequency Range	1 kHz to 2 GHz
ADC Resolution	14-bit
Bandwidth	Up to 10 MHz
Connectivity	USB 2.0
Preamplifier	Built-in low noise figure preamplifier
Antenna Ports	50Ω SMA and High Impedance port
Dimensions	95mm x 80mm x 30mm
Weight	280g

Wide Frequency Range

The SDRplay RSP 2 covers an impressive frequency range from 1 kHz to 2 GHz, allowing users to explore a vast array of signals, including:

AM/FM radio
Shortwave broadcasts
ADS-B aircraft tracking
AIS marine tracking
NOAA weather satellites
Ham radio bands
and more

High-Resolution ADC

With its 14-bit analog-to-digital converter (ADC), the SDRplay RSP 2 offers excellent dynamic range and sensitivity, enabling users to detect and demodulate weak signals even in the presence of strong nearby transmitters.

Ample Bandwidth

The device supports bandwidths up to 10 MHz, making it suitable for a wide range of applications, from narrowband modes like CW and SSB to wideband modes like FM and digital TV.

USB Connectivity

The SDRplay RSP 2 connects to a computer via a USB 2.0 interface, providing a simple and convenient way to control the device and transfer data. The USB connection also powers the device, eliminating the need for an external power supply.

Built-in Preamplifier

The built-in low noise figure preamplifier helps to improve the device’s sensitivity, particularly at higher frequencies where signal strength may be weaker.

Versatile Antenna Ports

The SDRplay RSP 2 features two antenna ports: a 50Ω SMA port for connecting to standard antennas and a High Impedance port for connecting to long wire antennas or loop antennas.

Setting Up the SDRplay RSP 2

Getting started with the SDRplay RSP 2 is a straightforward process:

Download and install the SDRplay driver and API from the official website.
Connect the SDRplay RSP 2 to your computer using the provided USB cable.
Install your preferred SDR software, such as SDRuno, HDSDR, or CubicSDR.
Launch the SDR software and select the SDRplay RSP 2 as your input device.
Start exploring the radio spectrum!

Using the SDRplay RSP 2 with Popular SDR Software

SDRuno

SDRuno is a powerful, feature-rich SDR software package developed by SDRplay. It offers a user-friendly interface, a wide range of demodulation modes, and advanced features like spectrum recording and playback.

To use the SDRplay RSP 2 with SDRuno:

Launch SDRuno.
Click on the “Select Input” button and choose “SDRplay RSP 2”.
Set your desired frequency, mode, and bandwidth.
Start tuning and exploring the spectrum.

HDSDR

HDSDR is a popular, open-source SDR software package that offers a simple, intuitive interface and support for a wide range of SDR hardware.

To use the SDRplay RSP 2 with HDSDR:

Launch HDSDR.
Click on the “ExtIO” button and select “SDRplay”.
Set your desired frequency, mode, and bandwidth.
Start tuning and exploring the spectrum.

CubicSDR

CubicSDR is a cross-platform, open-source SDR software package that offers a modern, intuitive interface and support for a variety of SDR devices.

To use the SDRplay RSP 2 with CubicSDR:

Launch CubicSDR.
Click on the “Device” button and select “SDRplay RSP 2”.
Set your desired frequency, mode, and bandwidth.
Start tuning and exploring the spectrum.

Applications of the SDRplay RSP 2

The SDRplay RSP 2 is a versatile device that can be used for a wide range of applications, including:

Amateur Radio

The SDRplay RSP 2 is an excellent choice for amateur radio operators looking to explore the world of SDR. With its wide frequency range and support for various demodulation modes, the device can be used for:

Monitoring ham radio bands
Making QSOs using digital modes like FT8 and PSK31
Participating in contests and DXpeditions
Experimenting with antenna designs and propagation

Spectrum Monitoring

The SDRplay RSP 2’s wide frequency range and high-resolution ADC make it an ideal tool for spectrum monitoring and analysis. Some potential applications include:

Identifying sources of interference
Monitoring public safety and military communications
Analyzing wireless network performance
Detecting and locating hidden transmitters

Satellite Communications

The SDRplay RSP 2 can be used to receive signals from various satellites, including:

NOAA weather satellites
Amateur radio satellites like OSCAR and CubeSats
Iridium and Globalstar satellite phone systems
GPS and GLONASS navigation satellites

Aviation and Marine Tracking

The device’s ability to receive ADS-B and AIS signals makes it a valuable tool for tracking aircraft and ships. By using software like Virtual Radar Server or ShipPlotter, users can:

Monitor local air traffic
Track the positions of ships in coastal areas
Contribute data to global tracking networks like FlightAware and MarineTraffic

Comparing the SDRplay RSP 2 to Other SDR Devices

The SDRplay RSP 2 offers a compelling combination of performance, features, and value when compared to other SDR devices in its class:

Device	Frequency Range	ADC Resolution	Bandwidth	Price
SDRplay RSP 2	1 kHz – 2 GHz	14-bit	Up to 10 MHz	$169
RTL-SDR	24 MHz – 1.766 GHz	8-bit	Up to 3.2 MHz	$25
Airspy Mini	24 MHz – 1.8 GHz	12-bit	Up to 6 MHz	$99
HackRF One	1 MHz – 6 GHz	8-bit	Up to 20 MHz	$299

While the RTL-SDR and Airspy Mini offer lower cost options for those just starting with SDR, the SDRplay RSP 2 provides superior performance and flexibility for more demanding applications. The HackRF One, while offering a wider frequency range and higher bandwidth, comes at a significantly higher price point.

Frequently Asked Questions (FAQ)

Q: What is the difference between the SDRplay RSP 2 and the RSP 1A?
A: The SDRplay RSP 2 offers improved performance over the RSP 1A, with a wider frequency range (1 kHz – 2 GHz vs. 1 MHz – 2 GHz), higher ADC resolution (14-bit vs. 12-bit), and a built-in preamplifier.
Q: Can I use the SDRplay RSP 2 with Windows, macOS, and Linux?
A: Yes, the SDRplay RSP 2 is compatible with all three operating systems. SDRplay provides drivers and API support for Windows, macOS, and Linux.
Q: Does the SDRplay RSP 2 require an external power supply?
A: No, the SDRplay RSP 2 is powered via the USB connection to your computer, eliminating the need for an external power supply.
Q: What type of antennas can I use with the SDRplay RSP 2?
A: The SDRplay RSP 2 features two antenna ports: a 50Ω SMA port for connecting to standard antennas and a High Impedance port for connecting to long wire antennas or loop antennas.
Q: Can I use the SDRplay RSP 2 for transmitting?
A: No, the SDRplay RSP 2 is a receive-only device and cannot be used for transmitting.

Conclusion

The SDRplay RSP 2 is a powerful, versatile radio spectrum processor that offers excellent performance and value for a wide range of applications. With its wide frequency range, high-resolution ADC, and built-in preamplifier, the device is well-suited for amateur radio, spectrum monitoring, satellite communications, and aviation and marine tracking.

Whether you’re a seasoned SDR enthusiast or just starting to explore the world of software-defined radio, the SDRplay RSP 2 is an excellent choice that will provide you with countless hours of learning, experimentation, and discovery.