Yup, as Bill said, it will work fine that way, but you are missing out
on an interesting feature for the AM mode that is built into the Flex -
PSDR architecture. From page 161 of the PowerSDR 2.x manual:
"The Carrier Level determines the percentage of carrier level to be
applied to the transmit signal where
100% is one quarter of full power output (25W when Drive on the front
console is set to 100). So a
setting of 80 would yield roughly 16W when Drive is set to 100. This is
useful as it allows the
modulation to appear much stronger due to the weaker carrier."
I typically run a carrier level of 45% and a drive level of 12 - 20 to
drive my pair of 3-500's to reach an AM carrier level of between 120
watts to 200 watts output. Watching my bench scope, I set up the audio
chain to modulate to roughly 125% - 135% positive. It's certainly
capable of even higher percentages without the disadvantages of a plate
modulated rig which will splatter and distort as it hits the baseline in
the negative direction. Many boat anchor receivers with simple diode
detectors have difficulty handling signals with positive peaks beyond
135% so that has to be kept in mind. Also, if you drop the carrier
percentage too low, you will begin to sound more like a double sideband
signal than an AM signal. At any rate, it's fun to mess around with!
73,
Rob W1AEX
I am not sure why you would ever run with the carrier level at anything
other than 100%.
73,
Harry
W0LS
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