Copyright © 2008 – 2019 DARE!! Products
Page 10
1.4.2
Functional description
The Radi
P
ower
®
uses a high-performance demodulating logarithmic amplifier to detect the RF
signal. The demodulated signal is sampled at high speed by a powerful DSP, which processes all
samples. The sophisticated software enables unique functions, such as envelope tracing. The
Pulse-version of the Radi
P
ower
®
supports all different modes of operation:
mode 0:
RMS power:
to perform RMS power measurements of CW-signals
mode 1:
Peak power:
to perform peak measurements on RF-signals
mode 2:
Envelope tracing:
to capture the envelope of an RF-signal
Mode 0 - In RMS mode the Radi
P
ower
®
samples the demodulated signal at high speed up to a
maximum of 10Msps
1
. The RMS value of the power is calculated over the number of samples
defined by the filter setting and can be read by a simple command. Due to the high sampling speed,
the number of readings is high even at large filter settings.
Mode 1 - In peak mode the Radi
P
ower
®
keeps track of the highest level detected. This can be done
for an infinite time. Once the power level has been read, the maximum value is automatically reset.
Mode 2 -
Envelope tracing is a unique feature which enables the possibility to visualize, for
example, the inrush phenomena of transmitters or signal generators, without the need of an
expensive RF analyzer. Due to the extensive trigger possibilities, almost any RF-signal can be
captured in the buffers of the Radi
P
ower
®
.
REMARK:
Mode 1 and Mode 2 are only available for the RPR20xx ‘P-Version’ when using the Radi
P
ower
®
directly connected to the PC USB interface (stand-alone use).
1
Only in RMS mode a sampling speed of 10 Msps can be used for RadiPower models RPR2006C and RPR2018C with
firmware version 2.7.0 or higher. The maximum sampling speed for firmware versions < 2.7.0 and all other modes is 1
Msps.
