Difference between revisions of "DRM/DRM+ Digital Radio Mondiale"
From OpenDigitalRadio
Jump to navigationJump to search| Line 3: | Line 3: | ||
There are some good options in order to receive and transmit DRM30 and DRM+ currently available. | There are some good options in order to receive and transmit DRM30 and DRM+ currently available. | ||
| − | [http://sourceforge.net/apps/mediawiki/drm/index.php?title=Main_Page Dream] The great free software DRM30 receiver and transmitter (see [http://www.olifantasia.com/projects/gnuradio/mdvh/examples/dream/ here] to use Dream with USRP). Look for [http://www.pappradio.de Pappradio] for an affordable receiver hardware to use with Dream. | + | *[http://sourceforge.net/apps/mediawiki/drm/index.php?title=Main_Page Dream] The great free software DRM30 receiver and transmitter (see [http://www.olifantasia.com/projects/gnuradio/mdvh/examples/dream/ here] to use Dream with USRP). Look for [http://www.pappradio.de Pappradio] for an affordable receiver hardware to use with Dream. |
| − | [http://www.drm-sender.de/ Spark] free (but not free software) DRM30/DRM+ (also FM/RDS and AM/AMSS) transmitter that supports direct RF output (possible hardware options include the USRP and Diragen). Also supports the use of the royalties-free codec CELT. | + | *[http://www.drm-sender.de/ Spark] free (but not free software) DRM30/DRM+ (also FM/RDS and AM/AMSS) transmitter that supports direct RF output (possible hardware options include the USRP and Diragen). Also supports the use of the royalties-free codec CELT. |
| − | [http://www.dsp4swls.de/sodira/sodiraeng.html Sodira] free (but not free software) DRM30/DRM+ receiver. To receive DRM+ one option is to use a VHF to HF downconverver ([http://www.nti-online.de/eFMC%20108-28.htm FMC 108-28] is a good option) together with a receiver like Pappradio (remember to turn off all band-pass filters). Other option for DRM+ reception is the USRP, using GRC - [http://www.oz9aec.net/index.php/gnu-radio/grc-examples examples here] - to grab the I/Q channels and output it to a [http://software.muzychenko.net/eng/vac.html VAC], then to [http://www.drm-sender.de/?page=tools#1 RateMonkey], and then to Sodira. We believe there is bug (bug confirmed by the author) in the DRM+ decoder of Sodira, that causes a drop of the SNR until a complete loss of sync after some seconds. | + | *[http://www.dsp4swls.de/sodira/sodiraeng.html Sodira] free (but not free software) DRM30/DRM+ receiver. To receive DRM+ one option is to use a VHF to HF downconverver ([http://www.nti-online.de/eFMC%20108-28.htm FMC 108-28] is a good option) together with a receiver like Pappradio (remember to turn off all band-pass filters). Other option for DRM+ reception is the USRP, using GRC - [http://www.oz9aec.net/index.php/gnu-radio/grc-examples examples here] - to grab the I/Q channels and output it to a [http://software.muzychenko.net/eng/vac.html VAC], then to [http://www.drm-sender.de/?page=tools#1 RateMonkey], and then to Sodira. We believe there is bug (bug confirmed by the author) in the DRM+ decoder of Sodira, that causes a drop of the SNR until a complete loss of sync after some seconds. |
| − | [http://nt.eit.uni-kl.de/static/diorama/index.html Diorama], Matlab implementation of a DRM receiver. | + | *[http://nt.eit.uni-kl.de/static/diorama/index.html Diorama], Matlab implementation of a DRM receiver. |
[http://www.drmrx.org/receiver_mods.html Receivers modification to get the DRM signal on a soundcard] | [http://www.drmrx.org/receiver_mods.html Receivers modification to get the DRM signal on a soundcard] | ||
See also [[DRM_trial_II_in_Sottens]] reporting a test transmission made with Spark, USRP and an amateur radio amplifier on the decommissioned MW transmitter mast of Sottens | See also [[DRM_trial_II_in_Sottens]] reporting a test transmission made with Spark, USRP and an amateur radio amplifier on the decommissioned MW transmitter mast of Sottens | ||
Revision as of 11:06, 15 March 2012
There are some good options in order to receive and transmit DRM30 and DRM+ currently available.
- Dream The great free software DRM30 receiver and transmitter (see here to use Dream with USRP). Look for Pappradio for an affordable receiver hardware to use with Dream.
- Spark free (but not free software) DRM30/DRM+ (also FM/RDS and AM/AMSS) transmitter that supports direct RF output (possible hardware options include the USRP and Diragen). Also supports the use of the royalties-free codec CELT.
- Sodira free (but not free software) DRM30/DRM+ receiver. To receive DRM+ one option is to use a VHF to HF downconverver (FMC 108-28 is a good option) together with a receiver like Pappradio (remember to turn off all band-pass filters). Other option for DRM+ reception is the USRP, using GRC - examples here - to grab the I/Q channels and output it to a VAC, then to RateMonkey, and then to Sodira. We believe there is bug (bug confirmed by the author) in the DRM+ decoder of Sodira, that causes a drop of the SNR until a complete loss of sync after some seconds.
- Diorama, Matlab implementation of a DRM receiver.
Receivers modification to get the DRM signal on a soundcard
See also DRM_trial_II_in_Sottens reporting a test transmission made with Spark, USRP and an amateur radio amplifier on the decommissioned MW transmitter mast of Sottens
