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Cross Country Wireless SDR-4+ LF low frequency receiver...frequency range 2 kHz to 2.5 MHz

CCW SDR-4+ LF Receiver

Replaced with Sentinel 4 VLF/LF/HF receiver , web page for information only

The SDR-4+ LF is a low frequency SDR receiver covering from 2 kHz to 2.5 MHz.

It has a Si570 low noise synthesised VFO, sharp band pass filtering, high linearity NXP RF bipolar amplifier and a built-in USB soundcard.
It is a development of our SDR-4+ HF/VHF general coverage receiver.
Recent development of the receiver has extended the lower frequency coverage to 2 kHz and added a switchable 350 kHz low pass filter to allow reception of natural VLF signals.

Key design features include:

CCW SDR-4+ LF Receiver


The SDR-4+LF receiver no longer uses "dual use" (military/commercial) devices so it can now be sold without restriction.

The SDR-4+ LF receiver set-up FAQ sheet can be downloaded as a PDF file here .

The SDR-4+ receiver Quick Start Guide v1.6 can be downloaded as a PDF file here .

The SDR-4+ USB driver installer can be downloaded as a zip file here . The USB installer program loads a driver certificate then the driver file so that it works on the lastest versions of Windows.

The SDR-4+ setup program can be downloaded as a zip file here . This installer program stores the USB drivers in a folder C:/SDR-4+ and places the ExtIO files in the HDSDR and Winrad folders in Program Files and Program Files (x86).

This is a link to our CloudMe folder allowing the files included on the CD shipped with each receiver to be downloaded here .

The SDR program we recommend for first time users of SDR receivers is HDSDR which can be downloaded here .

Authors of SDR software programs or other radio programs can add support for the SDR-4+ to their software using the SDR-4+ interface specification.

Contact Chris Moulding, G4HYG via Email address hidden from spambots for more details.

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