SDR# Info about FM station subcarrier

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millam

Old Radio Guy
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Jan 18, 2005
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I was listening to FM and found out that SDR# displays a line of text at the top when
I select a few stations. Google found that FM stations can transmit 64 char. of text on
a 57 kc subcarrier. In my area of SE Alabama there were 4-5 FM stations had data
going. Just thought some of you would enjoy looking at this. System is called Radio Data System.

Mil
 

hamstang

Member
Premium Subscriber
Joined
Feb 27, 2002
Messages
533
Location
Charlotte NC
I was listening to FM and found out that SDR# displays a line of text at the top when
I select a few stations. Google found that FM stations can transmit 64 char. of text on
a 57 kc subcarrier. In my area of SE Alabama there were 4-5 FM stations had data
going. Just thought some of you would enjoy looking at this. System is called Radio Data System.

Mil
Most cars made in the past 10 years or so have this feature in their radios.
 
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