15.0 Connections
Firmware V 1.0 / © 2005-2013 by Aaronia AG, D-54597 Euscheid, www.aaronia.com
50
12.0 SMA input (measurement of external signals)
Starting with the NF-3020, an SMA input is available.
Here, you can connect arbitrary external sensors, like
large, highly sensitive coils, specialized antennas or taps
and similar devices. The incoming signal strength is then
shown in volts.
This additional input allows a wide range of additional
applications and converts SPECTRAN into a true all-
round instrument. To activate the SMA input, simply press
the
key 6
and select the
analog
sensor (the
Status dis-
play
reads “
ANALOG
“).
The highly sensitive, ultra low-noise input of SPECTRAN (depending on model
down to 0.74nV/ Hz) has specifically been designed for measurement of extre-
mely weak signals, thus the maximum allowable input voltage is very small. The
maximum input voltage is 200nV to 200mV (0.2V) with a frequency of max.
30MHz (if the SPECTRAN is equipped with this option).
WARNING:
Be sure not to overload the input! The maximum allowable voltage
is just 200mV (0.2V). Voltages more than 10V can destroy SPECTRAN’s highly
sensitive amplifier circuitry!
You can expand the measurement range with our optional Differential
Probe up to 240V!
The probe also protects the input from to high voltage (up to
1500V). The probe is a “must have” if you want to measure DSL lines etc.
SPECTRAN as
DSL-Tester:
The Upstream of a
DSL1000 line.
Measured with a
SPECTRAN NF-
50xx with DDC and
our active
Differential Probe.
Our free PC-
Software “LCS”
even shows the
smallest change
with extremly high
resolution!
