Dear Friends Time to time this topic generate a lot of expectations and different opinions. I think Les, W2LPL did a quantum leap with his Adaptive polarization system when he was able to be out of windows XP and run his complete setup under Windows 7. Congratulation Les!!! for sure a lot of people will follow you. After his email informing the great success he reach I had at least a dozen of emails asking more or less the same points and I decide to answer direct to the reflector. The central point is if finally we are able to be out of the glorious Delta44 and replace with something more reliable under the future versions of windows. Unfortunate M-audio did a very bad job with his drivers and the Delta44 under Windows 7 runs very bad with a lot of glitches. Looking from that perspective I identified 3 audio cards without this kind of problems under windows 7: - Maya 44 PCI and PCIe ( the USB version sample only up to 44Khz) very similar to a Delta44 for half of the price. - Terratec DMX 6Fire USB (this is really promising card, is USB and sample up to 192KHz with 114dB S/N) ideal for notebooks and Dx-peditions - EMU1616 PCIe.(this card have the most power and famous A/D converter, same as the Flex5000 radio, difficult to configure but I think Les will publish soon a step by step guide to repeat what he did. The big advantage of this 3 audio cards are all run under windows 7 without problems, Les report he found the performance of his EMU1616 PCIe together with his IQ+ receptor better than the SDR-IQ and MAP65-IQ, at that time Les was running in single polarization means I expect even better results as soon he install the preamp and the RX line is missing now. Now the central question is which audio card I will recommend to match together with the IQ+?, My answer will be: Difficult question, the Delta44 still a top card but have a lot of problems with the drivers and looks like this cards will died together with Windows XP sP3 means Soon!!! The MAYA44 PCIe is very cheap and performance is only a little less than the Delta44, I think a very good option for those with reduce budget, cost benefic ratio is very good. The EMU1616 PCIe is the Rolls Royce but until now we don't have enough reports to considerer the extra price you pay, here in Europe is very expensive (400 EUR) The Terratec was tested also by Carsten and he report same performance with the Delta44, considering the DMX 6Fire is a USB device match perfect for Notebooks and Dxpeditions, just yesterday I finish my portable JT station, the computer is a Pavilion dv6 I5 processor with 8GB RAM and solid state disk OCZ Vertex II, the audio card is a Terratec DMX 6Fire dismantled and embedded into a IQ+ SE radio (special edition), runs very good and initials comparison from my side confirm what Carsten found, "no differences with a Delta44 and time to time better". To finish: today we have much more options than the Delta44, time is changing very fast and I think soon we will have even more options, existing other cards for test like ESI ESU1808, M-audio Fast Track Ultra, M-audio Fast Track C400 and C600, Native Instruments TRAKTOR Audio 6 and Audio 10, Steinberg UR28M, Tascam US-800 etc. All this mention cards have at least 4 inputs and sample someone up to 192KHz, they are all USB devices and prices runs from 100 to 700 USD. In the mid time the barrier of the Windows XP OS is break, I don't really care about the OS, I like something works, have the chance to run all in Windows 7 is really great like I did in a a Notebook, something impossible just few years ago!!! A LOT OF OPTIONS.. JUST SELECT WHAT IS THE BEST FOR YOU. 73 de Alex, HB9DRI