Yep, that's been on my list for a while too! :o) Btw, I just updated the blog post with a link to another post where I ran up a GSM network on a Pi 2 equipped

Yep, that's been on my list for a while too! :o) Btw, I just updated the blog post with a link to another post where I ran up a GSM network on a Pi 2 equipped with a UmTRX transceiver. http://www.rs-online.com/designspark/electronics/eng/blog/running-a-gsm-network-on-the-raspberry-pi-2 http://www.rs-online.com/designspark/electronics/eng/blog/ru... Given that UmTRX is dual channel, has a GPS locked clock and is much higher performance is general, I'm thinking it might make for an excellent platform for experimenting with passive RADAR! Andrew