RF-T860 Optical Transmitter
Page 9
Installation and Operation Manual
6. Testing
6.1 Test Equipment connection for Response and Return Loss
Testing
Figure 5 Test Link of Response and Return Loss
1. Referring the Figure 5 to connect the Test Equipment. Accurate the
Network Analyzer.
2. Optical power had been factory reset. Use Attenuator to select
corresponding attenuation, make sure the receiving power is 0dB(not above
3dB)
3. Connect optical transmitter and receiver with optical attenuator. Connect
Network Analyzer with optical transmitter’s RF input port. Connect Network
Analyzer with optical receiver’s RF input port.
4. In the Frequency Range 45M-750/860MHz , frequency response is within
±
0.75dB, Return Loss is above 14dB .(Note: When ALC/AGC switch is at
MGC side, adjust the RF attenuation with RF Attenuator. Be sure the
Flatness is in
±
0.75dB from lowest loss to 10dB loss.)
Network
Analyzer
8711
Optical
Transmitter
RF-T860
Optical Receiver
（
used in Test
）
Optical
Attenuator
Optical Output .
RF Input
RF Output
Optical Input
RF Output
RF Input
