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VIZIR - detection of wiretaps in 220/230V networks
Zařízení VIZIR is able to prověřovat zařízení, která jsou connected to sítí. Load switches, passing sňůry, spread boxes, telephone outlets, etc.
Princip activities zařízení is in connection with the se na siníť, která has a sinusoidní character and registers of higher harmonic proudu, které arises in semiconductor first zařízení, která jsou to the line připojena with the tip of the provádět odposlech. Analysis of higher harmonics does manual help adjusting the ellipse on the display of the ellipse.
Některé electronic elements mohou mít its characteristic squeal on the resulting ellipse. These are two-way smiling and suction sources (Fig. 2), transformers and echektoromagnetic relays (Fig. 3), one-way smiling and wire-shifters
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Zařízení VIZIR is able to prověřovat zařízení, která jsou connected to sítí. Load switches, passing sňůry, spread boxes, telephone outlets, etc.
Princip activities zařízení is in connection with the se na siníť, která has a sinusoidní character and registers of higher harmonic proudu, které arises in semiconductor first zařízení, která jsou to the line připojena with the tip of the provádět odposlech. Analysis of higher harmonics does manual help adjusting the ellipse on the display of the ellipse.
Některé electronic elements mohou mít its characteristic squeal on the resulting ellipse. These are two-way smiling and suction sources (Fig. 2), transformers and echektoromagnetic relays (Fig. 3), one-way smiling and wire-shifters
Minimum size of high-end power: 1 mW
Maximum resistance parallel to the connected prostředku: 1 MOhm
Minimum resistance seriově connected prostředku: 100 Ohm
Maximum guide line: 1000 m.
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