JAQ's Blog - Electronics, Microcontrollers, DEC Minicomputers, Raspberry Pi, Airplanes and other stuff....

1. GPS Connection to Hans Summers Ultimate 3 QRSS Kit
(JAQ/BLOG)

A few years back I built a QRSS transmitter (for slow morse and WSPR) based on a recycled DLink DSL-502T router running OpenWRT and connected to an Si570 DDS module. (http://www.quicktrip.co.nz/jaqblog/home/44-si570qrss) ...

2. SI570 QRSS Beacon
(JAQ/BLOG)

My MEPT QRSS and WSPR beacon is controlled by a DLink DSL-502T running OpenWRT. The QRSS and WSPR messages are generated by directly controlling the frequency of an Si570 chip.  The interface ...