I am currently building the
Lima SDR kit which is an all-band all-mode SDR transceiver with 1 W output. I am following the instructions in "HW/SW Handbuch 2.1, 2014, by DL9WB". Yes, it is in German!
This photo shows the programable synthesizer SI570 (square 2) connected to the USB chip (square 1).
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| The unfinished RX board (Lima SDR). |
The concept is shown below. A test application on the PC controls SI570 via an USB interface.
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| SI570 controlled by a test application via USB. |
However, I had problems installing the USB driver on the PC. I followed the instructions in "HW/SW Handbuch" but it did not work. Here is how I solved the driver problem:
- Install the certificate (it is on the CD-ROM: AmateurRadioRootCertificate.crt)
- Download and run PE0FKO-USB-Driver-Installer
Link to the Driver Installer:
http://pe0fko.nl/SR-V9-Si570/PE0FKO-USB-Driver-Installer.exe
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| Installation of driver is complete. |
The installed driver is from 11/10/2012 and the version is 1.2.6.0. Now the USB connection works, and the SI570 output frequency can be set. Hooray!
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| USB_Synth.exe controls the output frequency of SI570. |
Vy 73 from OZ1BXM Lars
