si570

All posts tagged si570

A simple usb2sdr receiver

Posted by Geir on March 3, 2012
Posted in: Electronics, SDR. Tagged: , , , , , , , , . 1 comment

Here’s the SV1EIA usb2sdr board controlling the Si570 chip on the vfo kit from K5JHF/K5BCQ, the MCU and display unit are of course removed. And the Si570 board is clocking the LA6NCA QSD unit. I haven’t calibrated anything yet, but it works fine.

Simple usb2sdr receiver setup. Top: K5JHF/K5BCQ Si570 board. Left: LA6NCA QSD board. Right: SV1EIA USB2SDR board.

Receiving wspr with the simple sdr setup.

Si570 Controller and Frequency Generator Kit by K5JHF and K5BCQ

Posted by Geir on March 3, 2012
Posted in: Electronics, Kits. Tagged: , . 3 comments

Yesterday I received the Si570 Controller and Frequency Generator Kit by K5JHF and K5BCQ.
And today, after 3 to 4 hours work the kit was ready for a test spin. My unit has the LVDS Si570 chip, the FIN-1002 LVDS to LVTTL converter with the TC1-1TG2+ output transformer. Here are a few pix…..

The Si570 kit

A few hours work and the kit is ready and working.

Generator output @ 56.320Mhz