nextraCOM TDR8134G - Bi-Directional Line Amplifier
   Suitably used in bi-directional transmission (can be reserved) and signal equalization of multi-class trunk transmission or high-required distributive network. Adopt PHILIPS, MOTOROLA imported power doubler modules. Audio pre-amplifier is low-noise microwave tube push-pull amplifier to insure enough gain. It has 1 input and 2 outputs, and each connection has over-current protection. The output branch or distributiveness can be changed following it. Double-equalizer is used, so adjusting multi-class transmission flatness is simple and convenient. Attenuator and equalizer are plug-in, so customers can choose fixed or adjustable style. High-reliable switch power (or linear power) and strict waterproof and anti-thunder design insure steady durative work.
Specifications:
Forward Transmission
Frequency Range MHz 45~860
Rated Gain dB ≥30
Flatness In Band dB ±1.0
Rated Input Level dBµV 72
Rated Output Level dBµV 102
Gain Adjustable Range dB Adjustable: 0~15dB, Fixed: 3,6,9,12,15
Slope Adjustable Range dB Adjustable: 0~24 dB, Fixed: 6,9,12,15,18
Noise Figure dB ≤±12
Composite Triplee Beat dB 60
Composite Second Order dB 60
Return Loss dB ≥12
Reverse Transmission
Frequency Range MHz 5~65
Flatness In Band dB ≤±0.75
Return Loss dB ≥14
Rated Gain dB 0 or 20 selected
MAX Output Level dBµV ≥110
Gain Adjustable Range dB 0~15
Slope Adjustable Range dB 0~10
General response
Power Voltage (50Hz) V 60V
Thunder Stroke KV 5 (10/700µS)
Dimension mm 270215118
Caution:
   a.In order to insure long-distance transmission flatness and low-frequency band carrier to noise ratio, fixed equal plug-in should be use correctly. The accuracy of frequency balanced plug-in is high, so usually it is no need to adjust class electric circuit if without appropriation standard instrument.
   b.Must use the power with over-current protection.
   c.When the installation finished, please examine over-current circumstance. If need not over-current protection circuit, must pull out the fuse in this circuit. You should examine if the load is a short circuit with a multimeter when you need over-current protection circuit.
   d.Service: The product installed or maintained by professionals. Our company has entrust local franchisers to responsible for it. Any technique consult, please contact local franchisers or Technique Department.
   e.BEFORE RUNNING, EARTHING FIRST!!!

Pane Drawing:

Product structure:
Power Source Voltage: ~220V(A), ~60V(B)
1. Input Port: 72 dBµV 15. Sub-output Port Over-current Protection FUSE 10A/250V
2. Input Test Port (If need not over-current protection, Pull out FUSE.)
3. Input Bi-directional Filter(or Short Plug-in) 16. Reverse Input Attenuator (0-15dB)
4. Short Plug-in(Use when input level is too high.) 17. Reverse Input Test Port: -20dB
5. Equalizer Plug-in(or Short Plug-in) 18. Reverse Module Terrace
6. Microwave Tube Push-pull Amplifier 19. Reverse Output Attenuator
7. +24V POWER LED 20.Reverse Output Test Port: -20dB
8. Low-noise Import Amplify Module 21. Input Over-current Protection FUSE 10A/250V
9. Main Output Port Over-current Protection FUSE 10A/250V (If need not over-current protection, Pull out FUSE.)
(If need not over-current protection, Pull out FUSE.) 22. Reverse Output Equalizer Plug-in (or Short Plug-in)
10. Hind Bi-directional Filter(or Short Plug-in) 23. POWER Port
11. Main Output Port 24. Fixed Equalizer (9dB) Switch.
12. Main Output Test Port: -30dB The Arrowhead Points at Level Position: No Equalizer loaded.
13. Output Branch or Distributiveness Plug-in The Arrowhead Point at Perpendicularity Position: Equalizer loaded
14. Sub-output Port: -10dB or -4dB  
* Specification is subject to change without notice