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Author Topic: Radio Marti DRM  (Read 1759 times)

Offline JimIO

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Radio Marti DRM
« on: March 01, 2020, 1613 UTC »
 Radio Marti is now broadcasting in AM and DRM. Which one do you think Cubans are listening to and why?

~

Offline ChrisSmolinski

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Re: Radio Marti DRM
« Reply #1 on: March 01, 2020, 1758 UTC »
All Cubans who have DRM equipment are listening to that broadcast instead of AM.  That would be... Arnie.  :)

The rest are listening to the AM version which gets jammed by Cuba.
Chris Smolinski
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Offline Josh

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Re: Radio Marti DRM
« Reply #2 on: March 01, 2020, 1832 UTC »
I suspect it's vastly more effective to jam dmr than standard am. Dmr is based on S4285 wich is coded to handle one interfering and likely stationary tone, after that it falls apart quickly.
We do not encourage any radio operations contrary to regulations.

Offline ChrisSmolinski

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Re: Radio Marti DRM
« Reply #3 on: March 01, 2020, 2028 UTC »
I suspect it's vastly more effective to jam dmr than standard am. Dmr is based on S4285 wich is coded to handle one interfering and likely stationary tone, after that it falls apart quickly.

DRM pretty much self jams half the time anyway. It's a (poor) solution in search of a problem.
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline ThaDood

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Re: Radio Marti DRM
« Reply #4 on: March 02, 2020, 1832 UTC »
So, you can hear in DRM, "I am Maati! And this is my wadio!"? I miss Voice Of Laryngitis rippin' on that.
“I am often asked how radio works. Well, you see, wire telegraphy
is like a very long cat. You yank his tail in New York and he
meows in Los Angeles. Do you understand this? Now, radio is
exactly the same, except that there is no cat.”
-Attributed to Albert Einstein, but I ripped it from the latest Splatter .PDF March 2025 issue.

 

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