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Cross Country Wireless SDR-4+ general coverage receiver...frequency range extended to 70.5 MHz

CCW SDR-4+ Receiver

The SDR-4+ is an HF general coverage SDR receiver covering from 0.85 to 70.5 MHz.

It has a Si570 low noise synthesised VFO, relay switched band pass filtering, ultra high IP3 InGaP HBT RF amplifier and a built-in USB soundcard.

Key design features include:

CCW SDR-4+ Receiver

In March 2012 following customer feedback and design work on our HF/VHF/UHF Multicoupler we have revised the SDR-4 and released the SDR-4+. This has a revised RF front end using a ultra high IP3 InGaP HBT RF amplifier, an IQ audio output to feed external sound cards and other revisions to improve RF performance, gain distribution, IQ balance and the SDR display.

September 2013...As a result of development work on the CCW Sentry SDR transceiver the frequency range of the SDR-4+ has been extended to cover the 4m amateur band. The frequency coverage is now 0.85 to 70.5 MHz. This new version also includes a revised USB sound card and a new antenna isolation transformer with a 2 kV working voltage rating without the 450 ohm antenna input.

March 2014...As a result of further development work on the CCW Sentry SDR transceiver the RF amplifier has been changed to a ultra high IP3 InGaP HBT device, the I/Q amplifier has been changed to a higher spec amplifier. The receiver IP3 measurement at full gain (attenuator off) is now +10 dBm measured with two -20 dBm carriers 20 kHz apart at 14 MHz.

September 2014...We also manufacture the SDR-4+ LF low frequency receiver. This has a frequency range of 12 kHz to 2.5 MHz.

The price of the revised SDR-4+ receiver is £179.95 plus shipping. At current rates that's $295.81 or 219.32 Euro.

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