@yt7pwr - Goran,
Yep…!! It’s entirely possible to receive from 400 kHz and up using the LimeSDR. In fact, last night I was checking out both of my V1.4 LimeSDRs I own and tuned to 1540 kHz KXEL in Waterloo and I tuned to 600 kHz WMT in Cedar Rapids and then did my usual cruising the band from 75m (3970 kHz) to 10MHz (at night the propagation isn’t good above 10 MHz unless there’s special atmospheric conditions for it). So YES YES YES the LimeSDR is fully capable of receive and transmit in the HF band and certainly below 48 MHz. I (and many other Hams) are living proof that we use our Limes on HF right now.
Also, pertaining to platforms, I’ll give you my rundown of PC platforms I use and what OS that are used with my Limes:
1.) Dell Optiplex 9010 Core i5, 3.2GHz, with 8GB RAM, 1TB hard drive under Windows 10 64-bit - - works excellent with the Windows version of SDRAngel with 5 MS/s.
2.) Dell Optiplex 3020 Core i3, 2.5 GHz, with 8GB RAM, 500GB hard drive and runs Ubuntu 17.10 (Artful) 64-bit - works excellent with the Ubuntu version of SDRAngel with 5 MS/s
3.) LattePanda micro-sized PC with LCD touchscreen, 1.5GHz, 8GB RAM, 32GB SD Card, running Windows 10 64 bit - works excellent with the Windows version of SDRAngel with 5 MS/s
4.) UDOO Advanced X86 1.8 GHz running Ubuntu 17.10 and 5" HDMI LCD screen - works excellent with the Ubuntu version of SDRAngel with 5 MS/s
5.) Pine Rock64 (Pi-Killer) 1.56 GHz running Ubuntu Mate (16.10 version) 4GB RAM, 32GB SD Card - this runs LimeUtil and SoapySDRUtil fine - still working on getting GQRX working on it
6.) MSI i5 2.3 GHz ‘hockey puck’ computer with 8GB RAM and 150GB SSD running Windows 10 64-bit - works excellent with the Windows version of SDRAngel with 5 MS/s
ALL those platforms (other than the afforementioned Pine but does have USB 3.0) operate with the LimeSDR and have USB 3.0 resources (I bought them for that reason) and all have USB 2.0 resources, too.
Hope this helps - - there are A LOT of Hams out there who run HF on SDRConsole to receive and I run SDRAngel with receive and transmit on HF…If you make this a V/U/SHF app you’ll lose a great number of Hams who will just continue to use SDRAngel since that’s our solution and running great right now. Please continue to work this for HF - - it’s a VERY viable market…And I like the user interface, too…
73 de Marty, KN0CK