[time-nuts] OT: Power level reference

[J. Forster]

How accurately do you NEED to measure power? Is this the start of a new
Group...  Power Nuts?

The 432A / 478A / 8477A and a good DMM is waaay good enough for ANY real
engineering use.

-John

======================


> and... I forgot to mention the Rohde & Schwarz NRS that goes from DC to
> 15 GHz.
> The maximum accuracy method (advanced substitution method - using a
> standard cell) described in the manual is probably what you're looking
> for.
> Btw. mine has all three available heads for 50, 60 and 75 ohms. I've
> been close to selling it until I discovered what a marvelous instrument
> it is.
>
> Adrian
>
>
> Joseph Gray schrieb:
>> We all have our various highly accurate frequency and perhaps time
>> references. Is there a relatively simple and inexpensive method of
>> making an accurate RF power level reference? If so, then what do we
>> calibrate it with, not already having such an accurate reference?
>>
>> One possibility that comes to mind is an HP 436A power meter. These
>> are abundant and usually have no sensor probes (which are expensive).
>> They also have a built in 50MHz, 0dBm reference. However, without more
>> fancy test equipment, I have no way to calibrate the reference, or
>> even verify that it is accurate.
>>
>> Joe Gray
>> KA5ZEC
>>
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