TUNER KRUB.434851.001
Tuner KRUB.434851.001 is intended for conversion
of the input 50…90 MHz frequency range signals into 950…1750 MHz frequency range. It is
included in the transmitting equipment of the 13,75…14,5 GHz frequency range satellite
station with remote L-range into Ku-range frequency converter.
The central input frequency
range f0 = 70 MHz is converting in the tuner's output into any F0 970…1680 MHz frequency
range. Tuner has a control output in which insignificant part of signal is derived.
MAINTENANCE CONDITIONS:
- operating temperature range +5°С...+45°С;
- relative humidity 95±34 % at the temperature + 35°С
- decreased atmospheric pressure, no more than 460 mm Hg.
SPECIFICATIONS
| N | Parameters, access | Limit | Note |
| 1 | Input frequency range, MHz | 50…90 | |
| 2 | Input standing-wave ratio, no more | 1,2 | |
| 3 | Output frequency range, MHz | 950…1700 | |
| 4 | Output standing-wave ratio, no more | 1,3 | |
| 5 | Transmission coefficient, dB | 18…22 | |
| 6 | Limits of the transmission coefficient adjustment, dB, not less | 30 | ~ 0,5 dB |
| 7 | Уровень сигнала на выходе тюнера при компрессии на 1 дБ, дБм, не менее | 10 | |
| 8 | Level of the tuner's output signal under compression at 1 dB, dBm, not less | Минус 33…27 | |
| 9 | Level of the signal at the control output relatively to the signal at the main output, dB | ±0,5 | 970
|
| 10 | Irregularity in the frequency response function in the output signal frequency band F0±20 MHz, no more | ±1,5 | |
| 11 | Irregularity in the frequency response function in the whole output frequency range, dB, no more/td> | ±0,5 | |
| 12 | Instability of the transmission coefficient signal dB/day, no more | 70 | |
| 13 | Transmission coefficients ratio when output signal turned on/off, dB, not less | 4 | 970
|
| 14 | Irregularity of the group time delay in the output signal frequency range F0 ±20 MHz, Ns, | 20 | |
| 15 | Noise coefficient, dB, no more | Минус 60 | |
| 16 | Noise level in the output signal spectrum at output signal capacity 0 dBm, dBs, no more | -55 | |
| 17 | Frequency tuning pitch, kHz | 125 | |
| 18 | relative instability of the heterodyne frequency, no more | (±2x10-8) | From internal generator 10 MHz |
| 19 | УOutput signal spectrum density phase noise level, dBs/Hz, no more | | From internal generator 10 MHz |
| Tuning out 0,1 кГц | -66 | |
| Tuning out 1,0 кГц | -76 | |
| Tuning out 10,0 кГц | -86 | |
| Tuning out 100,0 кГц | -96 | |
| Dimensions: | 44,8 mm | 19 mm | 448 mm |
Power supply: 100…240 V (47…63 Hz) Weight: no more than 7 kg.
REMOTE FREQUENCY CONVERTER
The outdoor frequency converter from L to Ku Band is designed to work as part of Ku-band satellite communications station as up-converter.
The OFC converts 950…1700 MHz signal into 13500…15450 MHz range, through internal local oscillator with frequency 15450 MHz.
The OFC works together with indoor 70 MHz synthesized up-converter to L-band (KRYuB. 434851.001) from what by coaxial cable with a wave impedance of 50 Ohms are supplied to OFC:
- DC power supply
- L-band information signal
- 10-MHz reference signal
- Control signals
Through the same cable the indoor 70 MHz synthesized up-converter to L-band receives the monitoring and alarm signals from the OFC.
The OFC is located and operates outdoors or in a container under the antenna reflector.
Operating conditions:
- Ambient operating temperatures: from -40°С to +60°С
- Storage temperatures: from -50°С to +65°С
- Relative humidity: 98±3% at + 35°С
- Decreased air pressure: 460 mm Hg (4,000 m above sea level)
MAIN TECHNICAL CHARACTERISTICS OF THE OFC
| N | Parameter name, unit of measurement, permissible value | Value | Note |
| 1 | Input frequency range, MHz | 950…1700 | |
| 2 | Input VSWR, no more | 1,5 | |
| 3 | Output frequency range, MHz | 13,75…14,5 | |
| 4 | Output VSWR, no more | 1,3 | |
| 5 | Transmission ratio, dB | -(30±2) | |
| 6 | Main output power at 1 dB compression dBm, no less | +15 | |
| 7 | Transmission ratio instability, at constant temperature under applying input signal of constant level, dB/day, no more. | ±0,5 | When the temperature
and the input signal
are constant |
| 8 | Ripple of amplitude-frequency characteristic | | |
| - in Fo ± 20 MHz output signal band dB, no more | ±1,5 | 13770 < F0 < 14480 |
| - in full band of output frequencies, dB, no more | ±1,5 | |
| 9 | Spectral density of LO phase noise
Frequency offset from carrier: | | |
| 0,1 kHz | Minus 66 | |
| 1,0 kHz | Minus 76 | |
| 10,0 kHz | Minus 86 | |
| 100,0 kHz | Minus 96 | |
| 10 | Spurious products in output signal spectrum: | | |
| - signal related at output signal level 10dBm, dBc, no more | Minus 65 | |
| - signal related at output signal level 10dBm, dBc, no more | Minus 55 | |
Weight of the outdoor frequency converter: no more than 2 kg.
|
TM
