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#1
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On 2005-10-02, Ari Silversteinn wrote:
This would be an "overbroadcast" (my term) in that it would override local AM radio broadcasting to reach into cars, My experience with AM (on the aircraft band) is that two transmitters at the same time yields a horrible squeal and nothing else. The louder station (usually on the ground with hundreds of watts) has no particular advantage over the other station (usually in the air with 5-10 watts). In other words, there is no effect like FM capture. -- Ben Jackson http://www.ben.com/ |
#2
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On Mon, 03 Oct 2005 13:37:49 -0500, Ben Jackson wrote:
On 2005-10-02, Ari Silversteinn wrote: This would be an "overbroadcast" (my term) in that it would override local AM radio broadcasting to reach into cars, My experience with AM (on the aircraft band) is that two transmitters at the same time yields a horrible squeal and nothing else. The louder station (usually on the ground with hundreds of watts) has no particular advantage over the other station (usually in the air with 5-10 watts). In other words, there is no effect like FM capture. Are you saying that if I am attempting an overbroadcast on, say, 680 AM and the station is doing the same, and I am 12 db + greater, that all we will get is squeal? -- Drop the alphabet for email |
#3
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Ari Silversteinn wrote:
Are you saying that if I am attempting an overbroadcast on, say, 680 AM and the station is doing the same, and I am 12 db + greater, that all we will get is squeal? One signal is the Beat Frequency Oscillator. I am amazed that no one has thought of this perfect solution before. If Morse code were required for all driver's licenses, then all you have to do is furnish a CW carrier wave. The two signals would mix and the squeal would be Morse code which would carry the emergency information. -- 73, Cecil, http://www.qsl.net/w5dxp |
#4
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On Mon, 03 Oct 2005 20:53:17 GMT, Cecil Moore wrote:
Ari Silversteinn wrote: Are you saying that if I am attempting an overbroadcast on, say, 680 AM and the station is doing the same, and I am 12 db + greater, that all we will get is squeal? One signal is the Beat Frequency Oscillator. I am amazed that no one has thought of this perfect solution before. If Morse code were required for all driver's licenses, then all you have to do is furnish a CW carrier wave. The two signals would mix and the squeal would be Morse code which would carry the emergency information. What if your fat as a whale and your DL is wedged up your crack in your back pocket? -- Drop the alphabet for email |
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