Noel G8GTZ has posted an update on the Southampton University Wireless Society (SUWS) web based software defined radio covering the 144, 432, 1290 and 10368 MHz amateur radio bands. On the UK Microwave Yahoo Group he writes:
A quick update on the status of the SUWS microwave SDR http://websdr.suws.org.uk/
10 GHz – the Octagon PLL LNB based system is working well and now has the correct frequency labels on the scale (rather than the RTL dongle tuning range). The Octagon does drift up to 30 KHz high with temperature which is not bad considering it is unmodified and mounted on the mast, and you can get an accurate frequency calibration from GB3SEE which is visible at all times on 10368.850. We have seen some very interesting propagation effects (both RS and tropo) with GB3CCX and GB3LEX was audible last week during the lift.
1.3 GHz – the SPF pre-amp is now mounted at masthead. There is some small frequency drift from the RTL dongle but GB3FN is very loud at all times and GB3MHL / GB3DUN are now audible with the any improvement in condx or aircraft scatter (Heathrow lies directly on the path to MHL).
144 MHz and 432 MHz – We are trying a new type of mixed mode helix antennae on both bands to improve satellite and HAB reception and it seems to be working very well – see
Listen to the SUWS WebSDR at http://websdr.suws.org.uk/
WebSDR for 434 and 1296 MHz https://amsat-uk.org/2013/12/28/websdr-for-434-and-1296-mhz/
UK Microwave Yahoo Group http://groups.yahoo.com/group/ukmicrowaves