Great idea thanks!
K6KWQ Dick
Amps by "MORE POWER"
- Original Message -
From: "John Coleman" <[EMAIL PROTECTED]>
To: "'Discussion of AM Radio in the Amateur Service'"
Sent: Thursday, February 28, 2008 2:57 PM
Subject: RE: [AMRadio
PROTECTED] On Behalf Of Rick
Sent: Wednesday, February 27, 2008 10:16 PM
To: 'Discussion of AM Radio in the Amateur Service'
Subject: RE: [AMRadio] Testing a modulator
If you can come close with an audio output transformer just put that and a
speaker on it. You'll be able to hear your audi
Hey Rick
Put a 300 ohm resistor in series with the bottom leg of you parallel
resistors then probe across the 300 ohm there will be about 1/10 the voltage
therefore safer for you and the scope. 100 Watts into 3000 ohms would mean
about 547 volts RMS (about 1320 volts peak to peak) across t
Hello Dick,
Your method seems fine to me...it's what I do. A high wattage resistance across
the secondary close in value to the load impedance will work. Use your signal
generator and a scope to check waveform purity over the desired frequency
range, but be careful with your probe. The secondar
If you can come close with an audio output transformer just put that and a
speaker on it. You'll be able to hear your audio and see it on the scope as
well.
Rick/K5IAR
How does one test a modulator. I will soon have a modulator capable of
around 100 watts of audio
K6KWQ Dick
Amps by "MOR
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