[AMPS] Peak reading vs True peak

[Rich Measures]

>
>> >I use a freshly calibrated oscilloscope and HV multiplier probe to
>> >measure
>> peak-v across the load, which I then convert 
>> >to PEP with a calculator.  
>> 
>> Which method actually measures the PEP according to its international
>> definition, and is modulation independent. What more could you ask for?
>
>I use a good peak storage amplifier with a LM-358 and a 
>conventional directional coupler, which reads peaks perfectly well 
>with all types of modulating including pulse in the microsecond 
>range.

€  Can you read 2kV peaks across 50-ohms at 4MHz? 
>
>I don't have to use the scope method, which is actually much less 
>accurate in both resolution and from power error caused by load 
>impedance changes.
>
€  My load still measures 49.8 ohms.   A use a voltage-standard to 
calibrate the scope.  



Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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