Cross Country Wireless SDR Receiver
Cross Country Wireless SDR Receiver
The Cross Country Wireless SDR Receiver is a compact high performance HF software defined radio receiver designed to be used in fixed or portable stations.
Version 3 of the receiver is now available. It now has an RF pre-amplifier using a power MOSFET and other revisions to improve it's performance both as a stand alone receiver and as an IF panadaptor with HF and VHF transceivers. Following the development of our new SDR-4 general coverage receiver we have also re-designed the audio amplifier to minimise changes in audio phase. This ensures that once the I/Q amplitude and phase balance is set it remains constant over the bandwidth of the receiver so that the unwanted sideband rejection remains high.
It has a choice of two internal crystal oscillators or an external VFO input, it's got good RF filtering (high and low pass filters similar to our VHF/UHF filters) before the RF pre-amplifier and it's optimised for use with any stereo input sound card so you won't need to buy an expensive sound card to start to use it. It can also be used with high performance sound cards for a wider tuning range and greater dynamic range.
The 40/30m version has centre frequencies of 7.057 MHz and 10.125 MHz.
The 30m version has a narrower front end band pass filter and centre frequencies of 10.125 and 10.154 MHz.
The 80m version has centre frequencies of 3.580 and 3.668 MHz. An optional frequency of 3.515 MHz is available.
The 500 kHz version has a centre frequency of 500 kHz so a 48 kHz sound card will cover 476 to 512 kHz.
The 455 kHz version has an offset centre frequency of 460.5 kHz and reduced audio gain so that it can be used as a SDR panadaptor on existing receivers or transceivers fitted with a 455 kHz IF output.
Using a 48 kHz sound card, SDR software can tune +/- 24 kHz from the centre frequency. With a 96 kHz sound card, SDR software can tune +/- 48 kHz from the centre frequency.
Features include:
High performance software defined receiver
Dual band 40/30m or monoband 20m, 30m, 80m, 500 kHz or 455 kHz versions
Two crystal oscillators and an external VFO input
RF band pass filter and RF amplifier using a power MOSFET in receiver front end
Works well with 48 kHz or 96 kHz stereo input sound cards
Minimum signal detectable is better than -127 dBm with a 48 kHz 16 bit sound card
LO output to the antenna is less than -70 dBm
Compatible with SDR software designed for Softrock receivers such as HDSDR, Rocky 3.7, PowerSDR, Winrad, CW Skimmer or SDR-Radio
No surface mount components
Supplied built, aligned and tested with a detailed specification sheet
Supplied with a CD-ROM containing sample SDR and digital mode programs
Power requirements 7 to 25V current consumption 73 mA
Complies with FCC Part 15 rules and CE specifications for EMC, RoHS and WEEE
Built to last with high grade components in a tough ABS case
Supplied with connection details, circuit, instruction manual and sample software on a CD
The SDR Receiver is now available built and tested at a price of £49.95 + £ 7.00 international postage.
We can also provide the SDR Receiver as a built and tested PCB ready to include in your project or fit into an existing case for £35.00 + £7.00 international postage.
Special frequency requirement? IF pan-adaptor? Beacon receiver?
We can now provide the SDR Receiver built and tested for any spot frequency in the 400 kHz to 15 MHz range suitable for use as an IF pan-adaptor, to add SDR features to an existing receiver or for a beacon or station monitoring receiver.
A custom made crystal can be fitted to the SDR Receiver if required. Contact us for further details.
You can order by Paypal in your local currency (prices shown are in GBP)...
You can download the SDR Receiver Operating Manual here.
You can also download a sample WAV file here. The sample file is a 5 minute recording of 96 kHz of the 40m amateur band during the Worked All Europe RTTY contest on 14 November 2010. It was recorded at Bolton, England using the SDR-Radio SDR program using a 40/30m SDR Receiver with a 1/4 wave vertical antenna. The 4.8 MB ZIP file extracts to a folder containing a 100 MB WAV file.
Contact Chris Moulding, G4HYG via info@
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