Dear all, Having camped in a non-mobile phone reception area for the last 12 days I had a chance to test some of the faster modes I coded in Fldigi. I tested the following under NVIS conditions: 400KM strait line, day and night conditions, 100 watts in a vertical mobile antenna on client side, G5RV and 50 watts on the server side: 3 x PSK125 (fits in a 500Hz bandwidth and is 50% faster than PSK250). Result: from these first tests it seems less robust than PSK250 (more so than expected when taking into account the wider bandwidth). 2 X PSK500R: I am very pleased with that one. Robust and fast (a little faster than PSK500). Good resistance to NVIS conditions day and night. 1200Hz bandwidth. 3 x PSK500R: also very good although as expected a less sensitive and robust than 2 x PSK500R. Gives a 55% speed advantage over PSK500. From past experience I would say around PSK500 in robustness BUT at 1900Hz bandwidth. I discovered a bug that I need to fix before I release these as the odd-carrier modes can sometime go completely and stay out of sync: we send all information twice but don't know where the first bit is in the sequence of carriers. For even carrier modes this is not an issue of course as we know the order. This was resolved for the PSKR modes but I have re-introduced the issue somewhere! So from these tests I would advance that for HF needs, the multi carrier raw PSK modes (without FEC) are probably not going to be of much value, but the PSKR modes will (which is consistent with usual solutions, so no surprise there). For FM links, on the other hand, I suspect the multi carrier raw PSK modes will give good results. I will now do more tests with the muti carrier PSK250R modes for the US based Hams on HF bands. Of interest also I suspect will be the 4PSK and maybe 8PSK modes that I will test after that, but they will need a better FEC scheme. I also did some test in portable with the end-fed 41M wire at approx 6 metres above ground (just thrown over tree branches) and the MFSK/THOR modes: I was getting excellent results right down to 0.5Watts TX on 80M at night (with plenty of thunderstorm activity around). I have replaced my LIPO battery with a LI-ION (one of these 9800mAH "blue bricks" on eBay) for safety and capacity advantage and it delivered many hours of operation with the FT-817. So this is definitely confirmed as my portable setup together with the Android phone and mini Bluetooth audio interface. All the best, 73, John