22 Copper tests
308
ARGUS 152
22.4 Active Probe
The ARGUS Active Probe is an active, high-impedance probe that can be passively
patched into an existing connection without interfering with it.
The ARGUS Active Probe II is designed to be used with the ARGUS line scope. The high-
ohm line scope (input impedance 3.6 k
) can also be used without the ARGUS Active
Probe II (see page 300).
22.4.1 Active Probe II
The ARGUS Active Probe II has the following technical specifications:
- Input impedance: 70 k
- Input capacitance: 1 pF
- Frequency range: 10 kHz to 30 MHz (± 1.5 dB)
- Attenuation, symmetrical 14.5 dB
- 2 x 4 mm banana plug sockets (spacing 12 mm)
- Data transmission to ARGUS via RJ45 lead (pins 4/5)
- Supply voltage: 5 V via ARGUS USB-host interface and USB cable
The Active Probe II can be operated in both symmetric and asymmetric mode. You can
switch between these two operating modes using the hotkey
or via the menu. See
page 303, line scope for an application example.
The Active Probe II:
In spite of the high impedanceprobe, it can cause transient losses of existing
connections when it is patched in.