Introduction
RFE_130 twoway trunk amplifier forward stage adopts the push pull module enlargement,
and internal splitter to select the output, with reverse channels which could transmit,
and also with slope response and gain control. It is also used for CATV system trunk
and distributing system, meeting extended frequency strip of system and upgrade requirement.
Feed (60V AC)
This set could feed by random up or down interface. Feed path should be shifted by current
pluggable piece, and when current light is on, it means that the path is connected. It uses
voltage regulation plugin piece, and plug it into the consistent phase based on the real feed
voltage to assure and power supply components are on the best work state.
DebuggingInstrument: DMM, field strength meter (with supervision function available is the best)
Technical Parameter
Items | Unit | Technical parameter | Note | |
Forward | Reverse | |||
Frequency range | MHz | 47/87~860/750/550 | 5~65 | Customers can order other frequency cutting mode |
Rated gain | dB | 30 | 0 | Forward reference frequency point is 862MHz and reverse is 65MHz |
Working gain | db | 28 | -1 | Forward reference frequency point is 862MHz and reverse is 65MHz |
Flatness in band | dB | ±0.5 | ±0.5 | Two-way ± 0.75 |
Rated output level(OUT1) | dBμV | Branch 100 distribution 96 | Forward reference frequency point is 862MHz | |
Branch Output Level(OUT2) | dBμV | Branch 90 distribution 96 | Forward reference frequency point is 862MHz | |
C/CTB | dB | 68 | Loaded 84 way PAL-D analogue channel | |
C/CSO | dB | 66 | ≥52 | Loaded 84 way PAL-D analogue channel |
Noise figure | dB | ≤8 | ≤10 | |
Return loss | dB | ≥16 | ≥16 | |
Group time delay | ns | ≤10 | ≤20 | 112.25/116.68MHz (forward) 57/59MHz (reverse) |
Signal alternating voice ratio | % | <2 | ||
Concussion resistant voltage | KV | 5 | 10/700us | |
Standard power voltage | V | A:60V B:220V | AC |
Bi-direction Trunk Amplifier