I just purchased a new Yaesu digital handheld and the power level on the
440 band is low (2.8 v 5.0 Watts), and was wondering if I can trust the W2's
accuracy? Another mobile higher powered transceiver also reads low on all
power levels on the 440 band.
I built the kit version of the W2 and
That would depend on what kind of digital you are talking about. I don't
think the W2 reads instantaneous peak power. That usually takes special
circuitry to do . Hint: a digital slug for a bird 43 wattmeter costs way
more than the meter does. Analog meters will not read properly in a
digital e
Measurement is in analog mode.should have made that clear or not even
mentioned a digital radio!
Michael
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Post: m
The only way to get the answer you wish is to compare it to a bench
standard like a bird watt meter.
Beyond that you are just guessing. Sorry
Mike va3mw
On Sun, Jul 30, 2017 at 11:18 AM, Michael via Elecraft <
elecraft@mailman.qth.net> wrote:
> Measurement is in analog mode.should have m
OK so I am trying to measure around 5 Watts or so on the W2's 20 Watt
scale. The spec's for the W2 directional couplers are listed at 0.5 dB
accuracy. Is this anywhere or just at full scale? How much could it be off at
only 25% of full scale?
Trying to decide if the 2.8 Watts I am reading
Michael,
In general, digital wattmeters have the same accuracy at any point on
the scale - unlike analog wattmeters for which the accuracy is stated as
a percentage of the full scale reading. On a 20 watt scale, a 25% error
would be up to 4 watts!
You might want to look at the specs for tha
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