He was talking about a class-c amplifier and I fully agree with Joe, there
will be no smooth transition at all
73
Peter
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of Larry
Sent: Montag, 24. Mai 2010 01:56
To: Joe Subich, W4TV
On 23-May-10 3:49 PM, Joe Subich, W4TV wrote:
>
> I don't care what kind of transition Joe has programmed into the
> DSP. The rise time/wave shaping makes little difference with a
> class C amplifier because the sharp turn on/turn off characteristic
> and saturated operation will always square up the pulses.
There is no turn on/turn off. That's what I'm trying to tell you. The
smooth phase transition that occurs as the tones change from one to the
other is exactly the same as slowly turning the knob on a linear (as
opposed to a PLL digital) VFO. NO CLIX!!!
>
> A Class C amplifier requires a certain level of drive to "turn on"
> and operates in saturation ... the turn on threshold will remove
> much of the low level ramp up and the saturation will create sharp
> "corners" at the top of each pulse.
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