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Okay hold the phone, only getting 5.5 vpp!!

Home › Forums › temp › Measuring Output Power of the Talking House › Okay hold the phone, only getting 5.5 vpp!!

December 21, 2012 at 4:03 pm #29934
PerryNH
Guest

Total posts : 45366

Just hooked the TH up to a Real Scope and it reads about 5.5 volts peak to peak!!!!! Mystery solved. Still can’t understand why my scope would read artifically high when reading a 1.7 mhz signal.

EDIT:

Here the carrier at 1700 Khz (0.2 volts per division)

http://i6.photobucket.com/albums/y235/perryW/THonRealScopeCarrier.jpg

Here’s the signal modulated by a sine wave from a signal generator:

http://i6.photobucket.com/albums/y235/perryW/THonRealScope.jpg

I guess I see that the modulation looked asymmetrical about the 0 volts. The negative peaks look somewhat squashed.

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