Two high-level integration circuits,
the AD606 from Analog
Devices and the MAX13RCPL
from Maxim, enable an accurate,
widehand voltage and
power meter to be built using a
minimum of components. The
instrument described here offers
a 3.5-digit LCD readout
and a handwidth of 50 MHz.
The input level range is quite
large at -80 to +10 dBm at a
resolution of 0.1 dB. The input impedance is 50 Ω.
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