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Old 01-08-2016, 21:55   #301
tpreitzel
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One of the best and most objective articles written on the current state of shortwave broadcasting. Naturally, I don't agree with everything, especially Sennitt's and Elliot's views on DRM. I'd be willing to bet, Kim, that DRM would consistently sink MFSK if a MSC of 16 QAM were used.

http://www.radioworld.com/article/th...e-radio/279335

Many thanks to Alokesh Gupta for placing a link to the aforementioned article on his excellent blog, Radioactivity.

Last edited by tpreitzel : 03-08-2016 at 20:25.
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Old 02-08-2016, 02:18   #302
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Quote:
DRM would consistently sink MFSK if a MSC of 16 QAM were used
I agree with that point. According to my experiment (with more advanced decoding algorithm) DRM indeed can tolerate the most common source of interference(co-channel, lightning, engine spark.. ect.) If applying diversity reception (on the receiver side) with the support of robust low rate channel code (on the transmission side), It can withstand the most malicious jamming and the most volatile propagation condition. And when I'm talking about diversity reception, I don't mean the multiple antennas arrays several wavelength apart. I'm referring to co-located heterogeneous antennas which is compact in space and works like magic.
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Old 29-08-2016, 22:32   #303
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Yea ... Voice of Hope is planning DRM transmissions to North America. Let the good times roll, roll, and roll some more...

http://alokeshgupta.blogspot.com/201...nsmission.html
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Old 15-06-2019, 18:19   #304
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Digital Radio Mondiale

DRM - Enjoy perfect
Short Wave reception -
enjoy it while it is still there

The Digital Revolution on Short Wave - will it pick up at last during 2019?
Will China increase the interest in DRM on short wave?

It will be interesting to find out when and what
PantronX's Titus II will add to DRM listening

With a proper transmitter DRM configuration, short wave listening could be a pure sensation!

https://www.hobbyradio.se/en/drm/indexdrm_en.html


--------------------------------------------------------------

Terje,

Beautifully stated. Evidently, the DRM Consortium needs to define a "proper transmitter DRM configuration" for shortwave broadcasting. Emphasis really needs to be placed on a proper transmitter configuration for shortwave by the consortium since so few digital broadcasts currently exist. DRM needs more than slick marketing. DRM needs proper technical deployment which will sell it more than any type of marketing. We'll get there eventually, but many of us may be well past our prime.
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Old 30-06-2019, 07:22   #305
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Another thing to think about is to choose a proper transmitting antenna! Preferably an antenna with a small elevation angle.
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