DrMax RxDemo

Running a DRM Transmitter 30mW Test at lab. Tx is set at a bit more than 30mW AVG power, connected at 50R load and with a 1m lead in parallel. Receiver was a modified ICOM PCR100 with a homemade IF converter board added at it. Rx antenna used was just a small homemade UHF whip with an added 1m lead. Distance between Tx lab workbench and Rx point was ~12m at a near seperate thru a wall, sideroom.
Encoder software was the freeware version of SPARK (www.drm-sender.de) for Tx, without ACC+, mono audio, with just a low value PC soundcard onuse, feeding with independed IQ (0Hz baseband) our transmitter. Frequency was 1440KHz (Medium Wave Band) DRM 9KHz.
Rx Decoding software used is the SoDiRa v0.74 for DRM A & B modes, while also the DREAM was tested with better decoding results at DRM C mode!
Audio is real audio captured while decoding our DRM testings...
See also our other DRM test video showing the Transmitter used for this test!

Category:

Science & Technology

Tags:

• DRM
• Digital Radio Mondiale
• SPARK
• SoDiRa
• DREAM
• Medium Wave
• AM
• Transmitter

[faustomx]

Hace 3 años realize un proyecto con spark y un FT757 yaesu en onda corta; Funciono de maravilla.