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10-3 How Bias is Generated
1 TMA–DD (Tower Mounted Amplifier – Dual Duplex)
2 Internal Components
3 Base Station Transmit and Receive Connection
4 Bias voltage is on Port 2
5 Port 2 of VNA Master
6 Port 1 of VNA Master
7 Antenna Transmit and Receive Connection
Figure 10-3. Variable Bias Tee on TMA-DD
Figure 10-3
shows a variable bias tee supplying bias power out of Port 2 to the test unit,
which is a dual duplex tower-mounted amplifier.
10-4
TMA — DD
7
Antenna
Tx / Rx
6
Port 1
PN: 10580-00289 Rev. K
1
2
3
BTS
Tx / Rx
(Bias on Port 2)
Port 2
5
Bias Tee, Option 10
4
Vector Network Analyzer MG
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