wsprWeak Signal Propagation Reporter (WSPR, pronounced:” whisper”) is a protocol developed by John Taylor, K1JT in 2008. It’s one of the many protocols used by radio amateurs but WSPR is a special one. The “Weak Signal”-part refers to signals being transmitted with a maximum power of 5 Watt (37 dBm), what still is regarded as QRP. But you can use much less then 5 Watt. Use more power is pointless, because it removes the accuracy of the “Propagation Continue reading

PSKAfter some juggling around with Ham Radio Deluxe and the last weeks, this weekend I let Digital Master 780 (as part of Ham Radio Deluxe) running in the background doing PSK-31 when I was studying. Every now and then I’ve made a QSO.

I must say, it actually runs quite smooth now. Little struggle Continue reading

Keyspan USA 19HIn the manual that came with my Kenwood TM-D710 I found a section about Automatic Packet Report System (APRS) and how to configure it. I thought it would be cool to configure my rig as an iBridge (repeater like option in APRS) to the internet. Then local packets my rig picks up, are being relayed to the Internet. Before I offer a dedicated machine for this functionality I want to figure out how this works under Linux. So I made a virtual machine on VirtualBox on my MacPro and installed Continue reading