• Get involved.
    We want your input!
    Apply for Membership and join the conversations about everything related to broadcasting.

    After we receive your registration, a moderator will review it. After your registration is approved, you will be permitted to post.
    If you use a disposable or false email address, your registration will be rejected.

    After your membership is approved, please take a minute to tell us a little bit about yourself.
    https://www.radiodiscussions.com/forums/introduce-yourself.1088/

    Thanks in advance and have fun!
    RadioDiscussions Administrators

99.9 KEDA sounds like it's farting Tejano

A

AnyHuman

Guest
It really does... Their engineer hasn't set it up right, so on my radio it sounds like it's farting Tejano and Conjunto music. I think the audio is too loud for transmitter and needs to be turned down somewhat. 1540 sounds fine on the AM side.
 
AnyHuman said:
It really does... Their engineer hasn't set it up right, so on my radio it sounds like it's farting Tejano and Conjunto music. I think the audio is too loud for transmitter and needs to be turned down somewhat. 1540 sounds fine on the AM side.
Click to expand...

The "farting" noise comes from when the transmitter is modulated to beyond the bandwidth of your radio receiver.

In a purist sense, there is no "over-modulation" of FM as the system is based on frequency "shifting"; 100% modulation is a rule, not a technical limit. If the FCC had specified +/- 100 kHz as 100% instead of +/- 75 kHz, radios would have been built with greater bandwidth.

AM can be over-modulated because above 100% the carrier is suppressed. It's a brick wall.

The cause of what you are hearing is in your radio. But that is because the station is likely modulating above 100% according to FCC rules. On a radio with greater bandwidth, the station would not sound bad, but it would be loud!
 
Overmodulation, distortion or whatever you want to call it, the problem extends to its online stream. The DJ chatter and ads distort worse than the music, but both are far short of good quality audio.
 
Thanks David that explains why KQQB 1520 kept shutting on and off a few weeks ago during the music they were playing. Their volume was too loud for their station's transmitter.

As for KEDA, I didn't know it had a online stream.
 
Status
This thread has been closed due to inactivity. You can create a new thread to discuss this topic.


Back
Top Bottom