This model has three separate antenna inputs that are each selectable through software. The SDRplay has an RF frequency range from 1kHz to 2GHz. The SDRplay RSPduo is great software defined radio option for those looking for a radio that will work in a Windows environment. It also contains a R820T2 tuner, a 1PPM TCXO for good stability, and an SMA connector for the antenna port. The RTL-SDR is a software defined radio receiver based on the RTL2832U ADC chip. The frequency range of this budget software defined radio is 500kHz to 1.7GHz. The RTL-SDR is only capable of receiving and cannot transmit.

With an almost cult-like following, there are many forums and sites to help get your RTL-SDR software defined radio listening in quickly. If the HackRF One is the most versatile, the RTL-SDR is the most affordable. RTL-SDR Blog V3 R820T2 RTL2832U 1PPM TCXO HF Bias Tee SMA Software Defined Radio with Dipole Antenna Kit This bundle is only available on Amazon and is noted as a limited time offering, so be sure to check the link for availability.

The combination of the Nooelec NESDR SMArt SDR coupled with the Ham It Up up-converter will allow this rig to operate from 100kHz to 1.7GHz. The bundle includes the Nooelec NESDR radio, a Ham It Up up converter, 3 different antenna, an impedance matching balun, and interconnect adapters. The Nooelec NESDR Smart HF Bundle is a complete and affordable kit that includes everything you need receive HF bands. SMA female clock input and output for synchronization.software-controlled antenna port power (50 mA at 3.3 V).software-configurable RX and TX gain and baseband filter.compatible with GNU Radio, SDR#, and more.8-bit quadrature samples (8-bit I and 8-bit Q).

Designed to enable test and development of modern and next generation radio technologies, HackRF One is an open source hardware platform that can be used as a USB peripheral or programmed for stand-alone operation. HackRF One from Great Scott Gadgets is a Software Defined Radio peripheral capable of transmission or reception of radio signals from 1 MHz to 6 GHz. Below is additional information from the vendor describing the HackRF One SDR Radio. This bundle includes everything you need to get the SDR up and running: adapters to connect a wide range of antennas to your HackRF One, including F-connector, N-connector, BNC and PAL antennas. Although the HackRF One SDR can both transmit and receive, it is only half-duplex, meaning it can transmit OR receive, but not both at the same time.

Limesdr vs hackrf