Ads by Google
Digital MMDS Transmitter for Headend
Description
1. Low local oscillation phase noise enhances the digital signal transmitting quality,2.A linearity design of low power dissipation promotes the power of transmitter and reduces the non-linearity distortion products3. Outdoor design promotes valid transmitting power and reduces the cost of transmitting feeder loss4. outdoor design greatly reduces the system cost by eliminating the waveguide5. small-size design fits he project6. Self-cooling heat sink increases the device reliability7. Aluminum structure design facilitates the maintenance.
Specification:
1. Electrical signal parameters
Parameters | Symbol | Min | Sample | Max | Unit |
Output frequency range | FOUT | 2500 | 2700 | MHz | |
Output power | P1db | 10 | 30 50 | 100 | W |
Frequency conversion gain flatness@200MHz and width | G200MHz | 1 | 1 | dB | |
Input frequency range | FIN | 2.5G-local oscillation | 2.7G-local oscillation | Hz | |
Input signal level | PIN | 75 | 85 | 95 | 2dBmV |
Gain attenuation range(4-bit) | Atten | 0 | 15 | dB | |
AGC range | GAGC | ±5/±0.5 | dB | ||
Output power stability(AGC state) | POUT | 1 | dB | ||
Local oscillation SSB phase noise@10KHz | NΦ | -95 | -90 | dB/Hz | |
Group delay | GD | 20 | ns | ||
Input port return wave loss | RLIN | 14 | dB | ||
Output port return wave loss | RL out | 17 | dB | ||
Output port impedance /connector | 50Ω/N-50K | ||||
Output port impedance/connector | 50Ω/N-50K |
2. Optical signal parameters
Parameters | Unit | Technical index |
Optical wavelength | nm | 1300-1600 |
Nominal optical input power | dBm | -1 |
Input optical power range | dBm | -5~+2 |
Maximum input optical power | dBm | +3dBm |
Optical connector | FC/APC | |
Optical return loss | dB | ≥45 |
Output impedance | Ω | 50 |
Output return loss | dB | ≥12 |
Output level | dBmV | 85(-1dBm optical input) |
Flatness in operation band | dB | ≤1 |
3. Other parameters
Parameters | Unit | |
30W | Approx. 25kg | |
Weight | 50W | Approx. 35kg |
100W | Approx. 45kg | |
30W | 480(L)620(W)240(H)mm | |
Dimension | 50W | 680(L)620(W)240(H)mm |
100W | 850(L)620(W)240(H)mm | |
Temperature | -20~45 | |
30W | Approx. 180VA | |
Power dissipation | 50W | Approx. 300VA |
100W | Approx. 500VA |
Digital MMDS Transmitter