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For AM signal, you want negative peak compression so the RF power doesnt get pinched off to zero. Because thats where the splatter comes from: the abrupt switching of RF power.
Usually this negative peak problem is from the CB transmitter, and any amplifier after that will just make all that splatter stronger.
On the other side is positive power peaks of AM. Its not a bad thing to have high positive peaks, its what makes you loud.
RF power amplifiers dont "clip" when you drive them hard, their gain just starts to drop the harder you drive them. The techno term is "one DB compression point", which is the power rating of an amplifier. Driving an RF amplifier beyond its 1dB compression point with AM signal wont cause any splatter to speak of, its the under-driving on negative peaks that needs attention.

<blockquote data-quote="dudmuck" data-source="post: 271851" data-attributes="member: 3904">For AM signal, you want negative peak compression so the RF power doesnt get pinched off to zero.&nbsp; Because thats where the splatter comes from: the abrupt switching of RF power.Usually this negative peak problem is from the CB transmitter, and any amplifier after that will just make all that splatter stronger.On the other side is positive power peaks of AM.&nbsp;&nbsp; Its not a bad thing to have high positive peaks, its what makes you loud.RF power amplifiers dont &quot;clip&quot; when you drive them hard, their gain just starts to drop the harder you drive them.&nbsp;&nbsp; The techno term is &quot;one DB compression point&quot;, which is the power rating of an amplifier.&nbsp;&nbsp; Driving an RF amplifier beyond its 1dB compression point with AM signal wont cause any splatter to speak of, its the under-driving on negative peaks that needs attention.</blockquote>

[QUOTE="dudmuck, post: 271851, member: 3904"] For AM signal, you want negative peak compression so the RF power doesnt get pinched off to zero. Because thats where the splatter comes from: the abrupt switching of RF power. Usually this negative peak problem is from the CB transmitter, and any amplifier after that will just make all that splatter stronger. On the other side is positive power peaks of AM. Its not a bad thing to have high positive peaks, its what makes you loud. RF power amplifiers dont "clip" when you drive them hard, their gain just starts to drop the harder you drive them. The techno term is "one DB compression point", which is the power rating of an amplifier. Driving an RF amplifier beyond its 1dB compression point with AM signal wont cause any splatter to speak of, its the under-driving on negative peaks that needs attention. [/QUOTE]

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