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Short answer is use a scope or get a pep kit for your bird meter.

On AM it depends what you modulate the carrier with. With a single tone 100% mod is 4 times the carrier...pep that is. In this case the bird with no pep kit will show no swing with modulation.

A human voice with some natural asymmetry can be different. It can even change with mic element polarity. If the radio has some swing mods done or an amp is being driven well into gain compression the waveform distorts. Average power continues to climb and pep stays about the same. Anything other than textbook test conditions make the textbook answer invalid.

For an AM carrier average and pep should be equal. If they aren't turn the mic gain all the way down. If they are still not equal your meter is wrong or something is oscillating. An oscilloscope is helpful here.

For SSB the average (bird) watts will be equal to pep if you use a single tone. Average power will be much lower with your voice. Average power will come up some if you use compression of some kind.

<blockquote data-quote="543_Dallas" data-source="post: 702008" data-attributes="member: 21044">Short answer is use a scope or get a pep kit for your bird meter.On AM it depends what you modulate the carrier with. With a single tone 100% mod is 4 times the carrier...pep that is. In this case the bird with no pep kit will show no swing with modulation.A human voice with some natural asymmetry can be different. It can even change with mic element polarity. If the radio has some swing mods done or an amp is being driven well into gain compression the waveform distorts. Average power continues to climb and pep stays about the same. Anything other than textbook test conditions make the textbook answer invalid.For an AM carrier average and pep should be equal. If they aren&#039;t turn the mic gain all the way down. If they are still not equal your meter is wrong or something is oscillating. An oscilloscope is helpful here.For SSB the average (bird) watts will be equal to pep if you use a single tone. Average power will be much lower with your voice. Average power will come up some if you use compression of some kind.</blockquote>

[QUOTE="543_Dallas, post: 702008, member: 21044"] Short answer is use a scope or get a pep kit for your bird meter. On AM it depends what you modulate the carrier with. With a single tone 100% mod is 4 times the carrier...pep that is. In this case the bird with no pep kit will show no swing with modulation. A human voice with some natural asymmetry can be different. It can even change with mic element polarity. If the radio has some swing mods done or an amp is being driven well into gain compression the waveform distorts. Average power continues to climb and pep stays about the same. Anything other than textbook test conditions make the textbook answer invalid. For an AM carrier average and pep should be equal. If they aren't turn the mic gain all the way down. If they are still not equal your meter is wrong or something is oscillating. An oscilloscope is helpful here. For SSB the average (bird) watts will be equal to pep if you use a single tone. Average power will be much lower with your voice. Average power will come up some if you use compression of some kind. [/QUOTE]

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