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Almost Rob. The audio bandwidth of that board will not reach 5000 cycles because the high frequency negative feedback loop limits it to around 3000 cycles. That keeps both sidebands in the AM TX bandwidth within 6 KHz. Just running these simple numbers we can see the loading ranges from very little if any around 300 cycles and a near short at 3000.

That why I say the loading device should be a resistive voltage divider whose resistance will not change with the frequency applied. Furthermore, the resistive divider will take the negative loading off the IC and place the AF voltage drop across a resistor.

[QUOTE="Shockwave, post: 457998, member: 10882"] Almost Rob. The audio bandwidth of that board will not reach 5000 cycles because the high frequency negative feedback loop limits it to around 3000 cycles. That keeps both sidebands in the AM TX bandwidth within 6 KHz. Just running these simple numbers we can see the loading ranges from very little if any around 300 cycles and a near short at 3000. That why I say the loading device should be a resistive voltage divider whose resistance will not change with the frequency applied. Furthermore, the resistive divider will take the negative loading off the IC and place the AF voltage drop across a resistor. [/QUOTE]

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