[Elecraft] W2 Directional Couplers

[Phil Kane]

On 1/3/2015 7:31 AM, kg5eju wrote:

> But, wondering if there is some accuracy/performance trade-off using a 2000 watt coupler on a 100 watt station?

The FCC's standard for transmitter metering  is the minimum normal
reading cannot be less than 20% of the full scale reading for a
linear-scale instrument or 33% for a logarithmic-scale instrument.   For
a digital readout, the readout of the device must include at least three
digits and must indicate the value of the parameter being read to an
accuracy of 2%.

See FCC Rules Section 73.1215 for other details.

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

>From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon