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10-4 Bias Tee when Making 2-Port Gain Measurements
Bias Tee, Option 10
With external bias tee voltage input, you can connect an external voltage of ±50 VDC to both
ports simultaneously, although for most applications biasing is required on only one port.
When the bias tee is set to External, the actual measured voltage and current at both ports
are displayed on the screen, as shown in
Figure
10-5. The maximum current that is allowed
when using external bias tee is 500 mA. If that current level is exceeded, then the
VNA Master switches the external bias tee away from the ports, the LED indicator on the
connector panel turns from green to flashing red, and the actual voltage and current readings
that are displayed on the screen turn red.
Figure 10-5. Bias Tee Set to External (MS20xxC models only)
10-6
PN: 10580-00289 Rev. K
Vector Network Analyzer MG
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