| nextraCOM LHX-M8134B / LHX-M8134A - Line Amplifier |
| It is suitable for use in multi-class trunk signal transmission to compensate or strict distributing network. Adopt Motorola, Philips power double amplifier module. Its main indexes are all better than 34dB gain module obviously. Pre-class adopted low-noise microwave tube double-class push-pull amplifier insures enough gain. 1 input and 2 outputs have over-current protection (fuse plug-change). Branches or distributers at output can be plug-changed freely. Adopt fore-and-aft double equalizers to adjust flatness sensitive and convenient. Import double-layer PCB, a high reliable linearity power and a multi-strict anti-thunder system are set. All these insure long-life and safe work. |
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| Specifications: |
| Frequency Range |
MHz |
45~862 |
| Rated Gain |
dB |
2 out x 30dB (1 out x 34dB ) |
| Flatness In Band |
dB |
±1 |
| Rated Input Level |
dBµV |
72 |
| Rated Output Level |
dBµV |
102 |
| Gain Adjustable Range |
dB |
0~15 adjustable |
| Slope Adjustable Range |
dB |
0~24[9dB fixed(switch 18 vertical arrow) + 15dB adjustable] |
| Temperature Compensation |
dB |
±2,5 (±30°C)
when active (switch 7 vertical arrow) total gain decrease with 3dB |
| Noise Figure |
dB |
<10dB |
| Composite Triplee Beat |
dB |
>60 |
| Composite Second Order |
dB |
>55 |
| Return Loss |
dB |
>12 |
| Anti-thunder |
KV |
5 (10/700µS) |
| Power Voltage (50HZ) |
V |
B : ~(35V-65V) A : ~(220V+/-10%) |
| Consumption |
VA |
14 |
| Dimension |
mm |
270x200x75 |
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Cautions:
- To insure long-distance transmission flatness and signal to noise ratio in low frequency band, please use fore-and-aft equalizers at the same time for a good effect. If there is a down-concave figure at about 80-200MHz, you may use aft-equalizer and pull out aft-equalizer switch (18).
- Max gain is the gain when attenuator and equalizer is zero and output plug-in is branch main output.
- If channel number or amplifiers continuous transmission class number is too many, in order to insure figure quality, decrease output level reasonably.
- Must use power source with over-current protection. If use magnetism saturation power source, please measure voltage of it with a pointer multimeter, otherwise will cause an error.
- Finishing installation, please examine whether the circuit is over-current. If you needn't the over-current circuit, pull out the fuse. If need, examine short circuit first with a multimeter.
- Service: The product installed or maintained by professionals. Any technique consult, please contact MONDO PLAST.
- BEFORE RUNNING, EARTHING FIRST!!!
- INSTALL AMPLIFIER WITH INPUT AND OUTPUT CONNECTORS UP !! (HANGING DEVICES UP !!)- AS SHOWN IN PICTURES !
Amplifiers have at oposite side of hanging devices 2 small holes for eliminatig water and condense from the amplifier body. These 2 holes MUST BE UNDER the amplifier body. |
| Pane Drawing |
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| Product structure |
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a. Low voltage (~60/50Hz) power supply – (B style)
- RF input
- Input Test Port: -20 dB
- Input over-current protection fuse 10A/250V
- Adjustable attenuator (use when input level too high)
- Adjustable equalizer
- Pre-class amplifier module
- Temperature compensate switch (arrow-head level-horizontal : no temperature compensate, arrow-head apeak-vertical : temperature compensate, decrease total gain with 3dB)
- Import amplifier module
- Output splitter or distributer plug-in (optional)
- Output 1
- Output 1 Test Port: -30 dB
- Output 2 ( splitter -4dB or TAP -10dB)
- +24V power LED
- Output over-current protection fuse 10A/250V (pull out if no need)
- Power supply fuse 3.15A
- Switching Regulated Power Supply
- Over-current inductor
- Fixed equalizer 6dB switch, arrow-head level–horizontal: no equalizer, arrow-head apeak-vertical: equalizer 6dB.
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b. High voltage (~220V/50Hz) power supply (A style)
3- Input over-current protection fuse 2A Others are same to B style (~60V). |
| * Specificatiile pot fi schimbate fara preaviz |
