BUC-K-4-18.75 is designed for MVDS TV broadcasting systems application in accordance with DVB-S/S2 or DVB-C and operates with up to 25 carriers. BUC-K-4-18.75 has output flange of PBR220 type (in accordance with WR42) and can be used with regular radio-relay link (directional) or broadcast (sector and OMNI) antennas.
BUC-K-4-18.75 supports all modulation types up to 32APSK and 256QAM. BUC-K-4-18.75 has the best linearity parameters to ensure the stability of the output frequency and low IMD3 level. BUC-K-4-18.75 has input frequency range of 950-1450 MHz (L-band) and provides 19.7-20.2 GHz output frequency range (K-band).
| Input parameters |
| Input frequency range, MHz |
950 – 1450 |
| Input impedance, Ohm |
50 |
| Input level, max, dBm |
-2 |
| Input VSWR, max |
1.5 |
| Input interface |
N-type, female |
| ALC range, min, dB |
25 |
| ALC threshold level, dBm |
-27 |
| Local oscillator |
| LO frequency, GHz |
18.75 |
| LO phase noise, dBc/Hz : |
|
| @1 kHz |
-80 |
| @10 kHz |
-85 |
| @100 kHz |
-100 |
| LO instability, ppm |
± 2 |
| Output parameters |
| Output frequency range, GHz |
19.7-20.2 |
| Output power @P1dB, W |
4 |
| ALC output power, mW |
400 |
| Gain, min, dB |
47 |
| IMD3 level at ALC output, dBc power, max |
-37 |
| Output interface |
waveguide WR42, flange PBR220 |
| Output VSWR, max |
2 |
| Frequency response |
| Flatness over Full Band, dB |
± 1.5 |
| Spurious |
| In-band P1dB, max, dBc |
-55 |
| Out-Band, max, dBm |
-30 |
| LO leakage at ALC output, dBm power, max |
-40 |
| Image rejection, min, dB |
60 |
| Power supply |
| Input voltage, VDC |
18-30 (nominal 24) |
| Power consumption, max, W |
30 |
| Environmental |
| Operating temperature, oC |
-40 … +50 |
| Storage temperature, oC |
-60 … +80 |
| Operating humidity, % |
100 (non-condensing) |
| Mechanical |
| Dimensions (W x H x D), mm |
121×118×88 |
| Weight, kg |
1.25 |
