Wideband Receiver

SDRplay RSP1A 1kHz - 2000Mhz Wideband SDR Receiver

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New! SDRplay RSP1A 1kHz - 2000Mhz Wideband SDR Receiver

 Upgraded powerful wideband full-featured 14-bit SDR which covers the RF Spectrum from 1 kHz to 2 GHz.

Building on the success of the popular RSP1, the RSP1A offers a significant number of additional features whilst maintaining exceptional performance and great value for money.

1kHz–2000 MHz Continuous Coverage

14-bit ADC Silicon Technology

Up to 10MhZ Visible Bandwidth

11 High-Selectivity Built-in Front End Preselection Filters

Windows Linux Android  MAC & Raspberry Pi 3

Free World-Class SDRuno Software

Used with the free Professional SDRUno SDR Software you can enjoy all modes of operation whilst monitoring up to 10 MHz of spectrum in real time. SDRUno software allows you to operate from 1 up to 4 independent virtual SDR Receivers within the selected 10MHz bandwidth of the SDRplay hardware. The actual number of Virtual SDR receivers is limited by the processing power of the PC in use.

An open API allows developers to create new demodulators or applications around the platform.

The RSP1A is also compatible with HDSDR, SDR-Console and Cubic SDR software packages

Main additional features of the RSP1A compared to the original RSP1:

  • ADC resolution increased to 14-bit native for sample rates below 6 MHz, increasing to 16 bits with decimation

  • Enhanced RF pre-selection (greater filter selectivity plus 4 additional sub-bands compared to the original RSP1) for reduced levels of spurious responses

  • Improved LNA architecture with variable gain - the RSP1 had just a single gain step

  • Improved intermodulation performance

  • Performance extended to cover 1kHz to 2 GHz with a single antenna port

  • Bias-T facility

  • Improved frequency stability incorporating a 0.5ppm TCXO (software trimmable to 0.01ppm)

  • Selectable broadcast AM/FM/DAB notch filters

  • RF shielding within the robust plastic casing

RSP2 with additional features available from our Ebay Shop or https://www.ebay.co.uk/itm/232219204719

RSP2pro version is also available - same specification as the RSP2 but is housed in a rugged metal box for improved RF Screening- see our Ebay Shop or https://www.ebay.co.uk/itm/232471199006

Package Contents: 1 pcs SDRplay RSP1A with "Getting Started" information.

Note: The SDRplay RSP1A requires a standard USB-A plug to USB-B plug Cable. This USB Cable is NOT supplied with the RSP1A as the majority of buyers will already have such a cable available.

SDR-Kits Warranty includes parts and labour and the cost of return shipping, provided the product has not been misused. Specifically the RF Power applied to the RSP1A Antenna socket should be limited to a maximum of +10dBm to avoid damage to the RSP1A.

This listing is tax-free export to countries outside the EU and includes shippingvia Royal Mail's International Airmail 'Tracked' or Signed For' Service.

Shipping to Australia: Please note that a number of Australian Customers are reporting delays of up to 3 weeks once parcel has arrived in Australia. We will ship to Australia via 'Tracked' Airmail Service, as Australian Post seem to be experiencing problems handling 'Signed For' Service.

Local Import duties, if applicable, are for buyer's account.

Claims for non-delivery can be made once 28 days have passed since due delivery date.

SDR-Kits is an Authorised Distributor for SDRplay Products since 2015

SDRplay RSP1A Specification:


  • Weight :110g

  • Size: 95mm x 80mm x 30mm

  • Low Current: 185mA (excl Bias T)


  • Single 50RF Connector (SMA)

  • USB 2.0 (high speed) type B socket

Frequency Range

  • Continuous Coverage 1kHz - 2GHz

  • Frequency Tolerance: 0.5ppm (Max)

ADC Characteristics

  • Sample frequency: 2 - 10.66MSPS

  • 14-bit native ADC (2 - 6..48MSPS)

  • 12-bit (6.048 - 8.064MSPS)

  • 10-bit (8.064 - 9.216MSPS)

  • 8-bit (>9.216MSPS)

Bias T

  • Software selectable 4.7V @ 100mA


  • High stability 0.5PPM TCXO

  • In-field trimmable to 0.01PPM

Maximum recommended input power

  • 0dBm continuous, 10dBm for short periods

Typical Noise Figures

    • 18dB @ 2MHz

    • 15dB @ 12MHz

    • 15dB @ 25MHz

    • 15dB @ 40MHz

    • 3.3dB @ 100MHz

    • 3.3dB @ 200MHz

    • 7.7dB @ 386MHz

    • 3.6dB @ 660MHz

    • 5.0dB @ 1500MHz

    • 6.3dB @ 1800MHz

IF Modes

  • Zero IF, All IF bandwidths

  • Low IF, IF bandwidths ≤ 1.536MHz

IF Bandwidths

  • 200kHz

  • 300kHz

  • 600kHz

  • 1.536MHz

  • 5.0 MHz

  • 6.0 MHz

  • 7.0 MHz

  • 8.0 MHz

Front End Filtering

  • Automatically configured

Low Pass

  • 2MHz

Band Pass

  • 2 - 12MHz

  • 12 - 30MHz

  • 30 - 60MHz

  • 60 - 120MHz

  • 120 - 150MHz

  • 250 - 300MHz

  • 300 - 380MHz

  • 380 - 420MHz

  • 420 - 1000MHz

High Pass

  • 1000MHz

Notch Filters

  • FM Filter > 50dB 85 - 100MHz

  • MW Filter >30dB 660 - 1550kHz

  • DAB Filter >30dB 165 - 230MHz >3>30dB 660 - 1550kHz
    >30dB 660 - 1550kHz

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