Hi Eric,
For best results, keep the input at the TinySA under -25DBm.? That means for 5 watts, a total of 36-(-25) = 61 DB.? An additional power attenuator of either 20 or 30 DB would be a good addition.? Get one rated for the highest power that you will be measuring.? If you intend to measure 100-watt QRO rigs, use a 40-db attenuator.
A Tap would be a lower-cost choice if you already have a 100-watt dummy load.? Here are directions on how to build one:
I built a slightly different tap from a no longer available webpage.? I have attached the PDF that I got from the site.
73
Evan
AC9TU
