Products - Satellite Equipments

PRODUCTS

LMDS / MMDS System

Since 1997, we have been the authorized contractor for StarHub Cable TV(formerly Singapore CableVision) for providing installation and engineering services for their Multi-point Multi-channel Distribution System or MMDS for commercial sector such as commercial buildings, pubs, hotels, clubs etc.

We had also been contracted by local ISP for the installation of Local Multi-point Distribution Services or LMDS, a broadband wireless line-of-sight point-to-multipoint communication system that offer a cost-effective last mile solution that service providers can adopt to connect their subscribers to a high speed Internet backbone.

LNBY - Integrated Antenna Downconverter
Parabolic Antennas and Passive Feeds

LNBY - Integrated Antenna Downconverter

CALAMP 131534 - 31 Channel High Gain LNBY

California Amplifier's integrated antenna downconverter (LNBY)
provides a high performance compact solution for MMDS reception.

Downconverter:

RF Input Frequency 2500 - 2686 MHz

RF Output Frequency 222 - 408 MHz

LO Frequency 2278 MHz ± 15 KHz

LO Frequency Stability ± 30 KHz; ± 50 KHz Max.

Noise Figure 1.7 dB

Gain 32 ± 3 dB

Gain Flatness ± 1.5 dB; ± 0.25 dB/6 MHz

Phase Noise -85 dBc/Hz @ 10 KHz

Image Rejection 45 dB

IF Rejection -75 dB

RF Output Level (Max) with 31 channels each 33 dBmV

Output Connector F-Type Female, 75 Ohms

Supply Voltage +16 to +24 VDC

Current 225 mA

Operating Temperature -40°C to +70°C

Finish Polyurethane Powder Coat Paint

Physical Size 5.2 x 5.2 x 2.7 in.

Yagi Director Length 21.5 in.

Weight 20 oz.

Antenna Specifications: (with Yagi director)

Gain 17 dBi

Front to Back Ratio 18 dB

Side Lobe Level -12 dB

3-dB Beam Width 24°

Cross Polarization Rejection -20 dB

Parabolic Antennas and Passive Feeds

CALAMP 130094/130135 - 24 dBi QLP Parabolic Assembly

California Amplifier's high performance parabolic antennas provide
unparalleled performance across the MDS, ISM and MMDS bands.

Electrical:
Frequency Range (MHz)	2150-2162	2400-2483	2500-2700
Gain	22 dB ± 1 dB	23.5 dB ± 1 dB	24 dB ± 1 dB
Efficiency	47%	48%	50%
VSWR	1.5:1	1.5:1	1.5:1
3-dB Beamwidth	12.5° ± 0.5°	10.0° ± 1.0°	9.75° ± .75°
Side Lobe Level	-18 dB ± 2dB	-20 dB ± 3dB	-20 dB ± 3dB
Front to Back Ratio
over near hemisphere	21 dB	21 dB	21 dB
at 180 degrees	28 dB	28 dB	28 dB
Polarization	Vertical or Horizontal	Vertical or Horizontal	Vertical or Horizontal
Cross Polarization Rejection	28 dB	28 dB	28 dB
Mechanical:
Reflector Type	Wire Grid Parabola
Size	27" x 30"
Weight	5.3 lbs
Surface Accuracy	0.05" RMS
Focal Length	15"
F/d Ratio	0.46 - 0.56 Quasi Log Periodic
Feed Type	End Fire Array Stainless Steel
Mounting	Hardware for 3/4"-2" O.D. Mast
Azimuth Adjustment	Continuous
Finish	Powder Coat Paint, Gray
Connector	N Type Male
Operating Temperature	-40°C to +80°C