5.6 Operation mode
broadband detector
(RF power detector):
(The DISPLAY MODE status field displays “RF”)
All SPECTRAN models with
power detector option
fea-
ture a integrated PEAK power detector (power meter),
allowing you to do BROADBAND PEAK measurements
of high-frequency power up to 10GHz (12GHz) in dBm or
dBµV.
The measurement sensitivity is about -50dBm. The hig-
hest usable level is +10dBm.
A principal limitation of this mode is that frequency display
is NOT possible, thus only a “0Hz” marker is displayd.
The graphics display now offers a
Time Domain Display
and shows the power vs time.
You can change the display speed with the
sampeltime (menu “SpTime”)
. The large main display and the bargraph show
you the measurement result in dBm or dBµV. The noisefloor is about -50dBm.
In addition, a potentially existing amplitude modulation (AM) will be made avai-
lable on the audio output (feature in development). The display mode status field
then will also display “AM”.
Broadband measurements with SPECTRAN offer an
instant
level display (in
contrast to “spectrum analysis mode“) of the “PEAK”-power in the complete
measurable frequency rage.
By utilizing a high-end, state-of-the-art Silicon-Germanium (SiGe) technology
detector chip, we even provide detection of
ultra short pulsings
! This opens up
a whole new range of possibilities: For example, measurement of ultra-short
RADAR bursts
or other short pulses.
The optional drastically enhanced frequency range of
up to 10GHz (12GHz)
is
significantly larger than what the spectrum analysis of SPECTRAN can current-
ly offer (currently 7GHz maximum / 9.3GHz is in development) and thus allows,
among others,
detection of PAR airport radar in the 9 GHz band
.
Obviously, the usefulness of this kind of measurement is limited in certain ways,
as it does not offer any frequency filter (BUT you can use extrenal filter at any
time) or frequency display. Thus, neither direct display of power density or field
strength nor calculation of exposure limit calculation or antenna corection is pos-
sible
BUT
if you know the transmitter frequency you can calculate the power-
5.0 Your first measurements / Modes
17
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
Summary of Contents for SPECTRAN HF-2025
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