The term Block Converter applies to fixed conversion sub-systems usually used for frequency translation from (to) L-band to (from) SHF (C, X, Ku and DBS bands). The single LO used in this translation has fixed frequency and has usually a frequency value below the SHF output (input) band. In some cases the LO frequency value may be above the SHF output (input) band.

Novella's Block Converters may be built inside the frequency converters, or located outside the main L-band converter chassis. In this case the L-band interconnect cable will carry L-band and, in many models 10MHz reference, alarm signaling and DC power provided by the converter chassis.

External Block Converters may be assembled in their own 1U 19" chassis, with or without independent PSU and/or 10MHz reference.

Or they may be assembled inside polycarbonate IP65 boxes, aluminium lightweight boxes to IP65 rating, or aluminium heavy duty ruggedised military type boxes to IP67. The size of these boxes is typically 220x145x55mm but smaller sizes are possible by further mechanical integration of components. The more standard sizes (around 220x145x55mm) are usually set by mechanical constraints and/or availability of third party standard size polycarbonate and aluminium boxes.

Novella also manufactures a variety of multiple C and Ku-band Block Downconverters in 1U 19" chassis, mainly for use in monitoring downlink stations where the monitoring devices are L-band demodulators or TV receivers. These units may be configured with redundant mains supply, including dual mains input connector.

Novella also modifies and re-engineers commercially available C and Ku-band LNBs (Low Noise Block converters) to take external 10MHz references, to improve overall phase-noise performance or to reduce the overall gain. Gain reduction of LNBs is often quite important as the usually very high gain of LNBs, in the region of 60dB to 65dB, is not compatible with the gain of large antennas and the aggregate power received from Ku-band DBS satellites, with EIRPs of 52dBW per 40MHz transponder. Novella has the required expertise and equipment to perform the modifications required in these circumstances.

МОДЕЛИ:

Model

Input band, MHz

Output band, GHz

LO, GHz

Gain, dB

Output 1dB compression

 

Block Upconverter

BU50

950 to 1,525

5.850 to 6.425

4.9

15

› +10

 

BU501

950 to 1,525

5.850 to 6.425

4.9

15

› +10

Packaged in a 1U chassis, with own PSU and 10MHz reference

BU51

965 to 1,845

5.845 to 6.725

4,880

15

› +10

 

BU55

955 to 1,450

5.850 to 6.425

7.300

15

› +10

Spectrum invert

BU56

955 to 1,830

5.850 to 6.725

7.680

15

› +10

Spectrum invert

BU561

955 to 1,830

5.850 to 6,725

7.680

15

› +10

Packaged in a 1U chassis, with own PSU and 10MHz reference

BU57

955 to 1,955

5.725 to 6.725

7.680

15

› +10

Spectrum invert

BU571

955 to 1,955

5.725 to 6,725

7.680

15

› +10

Packaged in a 1U chassis, with own PSU and 10MHz reference

BU65

950 to 1,450

7.9 to 8.4

6.950

15

› +10

 

BU651

950 to 1,450

7.9 to 8.4

6.950

15

› +10

Packaged in a 1U chassis, with own PSU and 10MHz reference

BU66

950 to 1,450

7.9 to 8.4

9.350

15

› +10

Spectrum invert

BU661

950 to 1,450

7.9 to 8.4

9.350

15

› +10

Packaged in a 1U chassis, with own PSU and 10MHz reference

BU70

950 to 1,450

14.0 to 14.5

13.05

15

› +10

 

BU701

950 to 1,450

14.0 to 14.5

13.05

15

› +10

Packaged in a 1U chassis, with own PSU and 10MHz reference

BU71

950 to 1,450

12.75 to 13.75

11.8

15

› +10

 

BU711

950 to 1,450

12.75 to 13.75

11.8

15

› +10

Packaged in a 1U chassis, with own PSU and 10MHz reference

BU73

950 to 1,750

13.75 to 14.5

12.8

15

› +10

 

BU731

950 to 1,750

13.75 to 14.5

12.8

15

› +10

Packaged in a 1U chassis, with own PSU and 10MHz reference

BU75

950 to 1,450 and 950 to 1,750

12.75 to 13.25 and 13.75 to 14.5

11.8 and 12.8

15

› +10

BUC71 and BUC73 assembled within a single box or chassis

BU751

950 to 1,450 and 950 to 1,750

12.75 to 13.25 and 13.75 to 14.5

11.8 and 12.8

15

› +10

Packaged in a 1U chassis, with own PSU and 10MHz reference

BU80

950 to 1,450

17.3 to 17.8

16.35

15

› +10

 

BU801

950 to 1,450

17.3 to 17.8

16.35

15

› +10

Packaged in a 1U chassis, with own PSU and 10MHz reference

BU81

1,000 to 2,100

17.3 to 18.4

16.30

15

› +10

 

BU811

1,000 to 2,100

17.3 to 18.4

16.30

15

› +10

Packaged in a 1U chassis, with own PSU and 10MHz reference

BU85

1,000 to 1,800

17.3 to 18.1

16.30

15

› +10

 

BU851

1,000 to 1,800

17.3 to 18.1

16.30

15

› +10

Packaged in a 1U chassis, with own PSU and 10MHz reference

Block Downconverter

           

BD50

3.625 to 4.200

950 to 1,525

5.150

25

›-5

Spectrum invert

BD501

3.625 to 4.200

950 to 1,525

5.150

25

›-5

Packaged in a 1U chassis, with own PSU and 10MHz reference

BD51

3.4 to 4.200

950 to 1,750

5.150

25

›-5

Spectrum invert

BD511

3.4 to 4.200

950 to 1,750

5.150

25

›-5

Packaged in a 1U chassis, with own PSU and 10MHz reference

BD65

7.25 to 7.75

950 to 1,450

6.300

25

›-5

 

BD651

7.25 to 7.75

950 to 1,450

6.300

25

›-5

Packaged in a 1U chassis, with own PSU and 10MHz reference

BD66

7.25 to 7.75

950 to 1,450

8.700

25

›-5

Spectrum invert

BD661

7.25 to 7.75

950 to 1,450

8.700

25

›-5

Packaged in a 1U chassis, with own PSU and 10MHz reference

BD70

10.95 to 11.7

950 to 1,700

10.00

25

›-5

 

BD701

10.95 to 11.7

950 to 1,700

10.00

25

›-5

Packaged in a 1U chassis, with own PSU and 10MHz reference

BD702

11.45 to 11.95

950 to 1,450

10.50

25

›-5

Packaged in a 1U chassis, with own PSU and 10MHz reference

BD71

11.70 to 12.25

950 to 1,500

10.75

25

›-5

 

BD711

11.70 to 12.25

950 to 1,500

10.75

25

›-5

Packaged in a 1U chassis, with own PSU and 10MHz reference

BD72

12.25 to 12.75

950 to 1,450

11.30

25

›-5

 

BD721

12.25 to 12.75

950 to 1,450

11.30

25

›-5

Packaged in a 1U chassis, with own PSU and 10MHz reference

BD731

10.70 to 11.70 OR 11.70 to 12.75

950 to 2,050 OR 950 to 2,100

9.75 OR 10.75

25dB

›-5dBm

Two high stability BDCs in a single chassis.

BD732

10.70 to 11.70 AND 11.70 to 12.75

950 to 2,050 AND 950 to 2,100

9.75 AND 10.75

25dB

›-5dBm

Two high stability BDCs in a single chassis.

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