[hpsdr] rtl_hpsdr an RTL to HPSDR software translation server

[Hermann]

Hi Richard,

that is awesome - hope I can soon find some time for testing. Would like to
port it also to Windows.

Thanks a lot for this interesting software!

73, Hermann
DL3HVH


On Thu, Jan 16, 2014 at 12:15 AM, Richard Koch <n1gp at hotmail.com> wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
>
> I am releasing to the public via GPL an RTL to HPSDR software
> translation server.
>
> Hosted on https://github.com/n1gp/rtl_hpsdr
>
> Screenshots listed and end.
>
> README:
>
> It currently builds and runs on Linux. It identifies and uses up to
> seven (theoretically eight) USB RTL2832U-based DVB-T dongles. The
> dongles can be set up with an up converter or use RTL direct-mode
> for HF receive. Or direct input to provide it's native > HF receive
> range.
>
> The program can be passed in a variety of command line options.
> One of which is a frequency offset not only for up converter use
> but also to allow a full range of frequency options to HPSDR programs
> that are coded to only allow the real HPSDR radio's (i.e. Hermes)
> frequency range which is from 10KHz to 55MHz.
>
> The main purpose of this program is to provide a mechanism that
> allows RTL Dongle owners the ability to use them on HPSDR specific
> software programs.
>
> One such program, cuSDR64 has the ability to control and display
> up to 7 rcvr slices simultaneously. With rtl_hpsdr, if your host
> has the horsepower, you can run 7 RTL Dongles to emulate the HPSDR
> rcvr. cuSDR64 also can be built and run on Linux.
>
> Since the real HPSDR (i.e. Hermes) rcvr can do up to eight rcvr
> slices, there is a concept of 'COPY' rcvrs in this server. This
> would allow one to use HPSDR programs that expected more rcvrs
> than were attached. Currently if a program request more rcvrs
> than are actually attached the rtl_hpsdr server will make copies
> of the last 'real' rcvr. This alows one to only have one RTL dongle
> attached and run PowerSDR mRX which may expect up to four rcvr
> slices.
>
> Refer to: http://openhpsdr.org/softwareinfo.php  for a list of
> HPSDR supported applications.
>
> I have tested this only on cuSDR64, cuSDR32, and PowerSDR mRX.
>
> I was successful running 7 RTL dongles simultaneously on a
> Quad core ARM Cortex A9 based mini-pc, model EKB311
> running a version of Picuntu, http://ubuntu.g8.net/
> This was using R820T based dongles on a USB 2.0 hub. I did
> have to replace the USB hub power supply with one that
> provided 5V @ 2A.
>
> My 7 reveiver dongle setup:
> http://home.comcast.net/~n1gp/RTL_HPSDR/7_usb_rcvr.jpg
>
> Display of using 5 RTL dongle rcvrs with cuSDR64
> http://home.comcast.net/~n1gp/RTL_HPSDR/5_rcvrs.jpg
>
> This PCIE card provides 4 RTL Dongles (DigitalNow Quad DVB-T)
> http://home.comcast.net/~n1gp/RTL_HPSDR/dn_quad.jpg
>
> Display of using 2 RTL dongle rcvrs with PowerSDR mRX
> http://home.comcast.net/~n1gp/RTL_HPSDR/powersdr.jpg
>
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