Multi-band WSPR Receiver

Thi receiver is designed and built to made to be a low cost way of receiving all shortwave WSPR bands. 
Instead of tying up your expensive transceiver, you will use this extremely low power device that can be powered directly from the USB port of your computer.
It is controlled by the WSJT-X that will tune it to the WSPR frequency for any given band you would like to monitor. You plug in an antenna at one end, connect the Audio out port to your computer sound card, then power it and you are good to go. 
For a really low "always-on" setup you might want to use a Raspberry Pi as the computer. The receiver only consumes 0.35W!

 
The receiver should give you the same amount (or more) WSPR spots as a commercial expensive transceiver.
Frequency coverage is 100kHz to 28.2MHz that means the following bands can be monitored: 2190m, 630m, 160m, 80m, 60m, 40m, 30m, 20m, 17m, 15m, 12m and 10m   

 
Please note that that it is designed for WSPR reception so it can not be used as general listening receiver as it has an audio band-pass filter centered around 1500Hz.
But it can be used for other digital modes if they fit in to a 400Hz bandwidth and you tune it so the signal is centered at 1500Hz.
 
The setup is very easy, connect the USB and audio to your computer, configure WSJT-X to use IC-741 as radio and set the correct serial port, set Serial speed to 9600Baud 8 bits, no parity, 1 stop bit. Then configure the audio in port and you are done.
 
Each receiver is tested, tuned and frequency calibrated against my in-house frequency standard.
The calibration is stored in the device EEPROM and used in the tuning of the device.
This gives a receiver frequency accuracy at 10MHz that is usually within two Hertz or less from NIST or other national standard. Drift is also very low, typically 0.2ppm or better over the temperature range 0-35C.  

 
Go to the documentation page if you want to get the full set up guide and to find more information.