Performance Characteristics
■ 1003MHz bandwidth design (1218MHz bandwidth optional).
■ Forward path: The pre-stage adopts GaAs MMIC; Return path: MMIC or module (optional). The output stage adopts the newest imported high index power doubler module, achieve high output level, low distortion and high SNR.
■ It is more convenient to debug because of the plug-in duplex filter, equalizer, attenuator, output tap and the scientific and reasonable on-line detection ports.
■ The equipment can long time continuous work steadily under outdoor bad environmental condition. Because of the ultra-thin modular aluminum waterproof housing, high reliability switching power supply and strict lightning protection system.
Technical Parameter
| Item |
Unit |
Technical Parameter |
| Forward Path |
Remark |
| Frequency range |
MHz |
45(87)~ 862/ 1003/1218 (optional) |
|
| Rated gain (@FZ110) |
dB |
≥32 |
≥38 |
Different modules, different gain. |
| Rated input level |
dBμV |
72 |
72 |
|
| Rated output level |
dBμV |
≥104 |
≥110 |
|
| Flatness in band |
dB |
±0.75 |
±0.75 |
|
| Noise figure |
dB |
≤10 |
≤10 |
|
| Return loss |
dB |
≥16 |
|
| C/CTB |
dB |
≥72 |
≥70 |
84ch PAL analog signal, EQ 8dB, splitter output, 743.25MHz 104dBuV |
| C/CSO |
dB |
≥70 |
≥68 |
|
| Group delay |
ns |
≤10 (112.25 MHz/116.68 MHz) |
|
| Signal to hum ratio |
% |
< 2 |
|
| Gain stability |
dB |
-1.0 ~ +1.0 |
|
| Return Path |
| Frequency range |
MHz |
5 ~ 65(or specified by user) |
| Rated gain |
dB |
≥22(Different modules, different gain. |
| Can be specified by the users.) |
| Maximum output level |
dBμV |
≥110 |
| Flatness in band |
dB |
≤±0.75 |
| Noise figure |
dB |
≤8 |
| Return loss |
dB |
≥16 |
| Signal to hum ratio |
% |
< 2 |
| General Performance |
| Characteristic impedance |
Ω |
75 |
| Power supply voltage |
V |
A：AC(150~250)V；B：AC(35~90)V |
| Impulse withstand voltage |
kV |
> 5(10/700μs) |
| Power consumption |
W |
≤20 |
| Dimension |
mm |
290（L）* 265（W）* 75（H） |
Note: The parameters of this manual are measured when adopting imported ACA2788 module. If use other module, the indexes will be a little different. Attention when use!
Block Diagram
Structure Diagram
 |
1. RF input |
2. Input RF test port (-20dB) |
| 3. Forward path ATT inserter |
4. Forward path EQ inserter |
| 5. Forward path ATT inserter |
6. Forward path EQ inserter |
| 7. RF output port1 |
8. Power-pass inserter |
| 9. FZ110 or FP204 |
10. RF output test port (-20dB) |
| 11. Reverse path RF input test port (-20dB) |
12.Reverse path ATT inserter |
| 13. LPF |
14. RF output port2 |
| 15. Power-pass inserter |
16. Working indicator |
| 17. Reverse path RF output test port (-20dB) |
18. Reverse path ATT inserter |
| 19. Reverse path EQ inserter |
20.60V feed port (AC60V power supply) |
| 21. Power-pass inserter |
22. Mainboard power interface |
| 23. Switching power supply |
24. Accessories rack |
Notes
1. Strictly control the output level when use. When there are too many channels or concatenations, the output level should be appropriately reduced to ensure the transmission quality. Generally speaking, a dozen programs can be controlled in about 93 ~ 105dBμV.
2. Please rational use the EQ inserter to ensure the flatness of long-distance transmission and the low-frequency side SNR.
3. Strictly waterproof when use in outdoor. Please tighten the cover screws.
4. B type (AC60V power supply) equipment is strongly recommended to use power supply with overcurrent, overvoltage and lightning protection device.
5. Please pull off the overcurrent fuse when no need overcurrent! Check if there is short circuit first when need overcurrent!
Repair items: The product installed or maintained by professionals.
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