Can be configured for FSS or DBS services, for example:

• 10.95~11.70  European

• 11.70~12.25  North American

• 12.20~12.75  DBS

                ... in a single Rack

Features:

• Always-on oscillators for minimal drift, switched LO's for spur free reception

• Double regulated oscillator supplies assuring low phase noise stability

• 110 to 230 AC input switching regulated power supplies (transformer supplies on request)

• Standard SMA in SMA out (other connector choices available)

• One RU high

Versions:

• Basic, manually switchable version

• Available in Redundant configurations

• 10MHz External Reference Design

• Master 10MHz Oscillator

• Precision 10 MHz Oscillator

• Also available in 12 VDC Mobile version

ORBITAL – TRI-BAND BLOCK DOWN-CONVERTER SPECIFICATION

GENERAL DESCRIPTION

The 1RU, 19 inch rack mount Ku-band block downconverter assembly translates RF inputs in the 10.95-12.75 GHz Ku band to IF outputs in L-band in three manually switchable bands. The converters contain internal crystal controlled high stability frequency references, and as an option, all crystal oscillators can be constantly powered up to optimize long-term stability. Inputs are microwave relay switched to optimize isolation between units, and non-selected units will have their local VCO oscillators powered down to minimize spurious and in-band interference.

RF REQUIREMENTS. 

Over the receive frequency range, the block converter RF requirements shall be as specified below:

RF Input Frequency Range:               10.95 to 11.70 GHz

                                                                 11.70 to 12.25 GHz

                                                                 12.25 to 12.75 GHz

RF Impedance :                                    1.5:1 VSWR maximum (50 ohm reference)

RF Input Connector:                             SMA (f)

IF Output Frequency Range:               950 to 1750 MHz

                                                                  950 to 1500 MHz

                                                                  950 to 1450 MHz

IF Impedance:                                        1.5:1 VSWR maximum (50 ohm reference)

IF Input Connector:                               SMA (f)

Spectrum Sense:                                  Non-Inverting

Noise Figure (SSB):                             15 dB @ +25C

Gain for each converter:                      25 dB typical

Gain Variation over Temp:                  < +/- 1 dB

Gain Flatness:                                      < +/- 0.5 dB/30 MHz

Frequency stability:                             internal for each BDC, +/-0.3 ppm stability @ 25C

Frequency selection:                          manual rotary switch

SSB Phase Noise, better than:      

                                     10 Hz                 -50 dBc/Hz

                                   100 Hz                 -60 dBc/Hz

                                     1 KHz                 -70 dBc/Hz

                                  10  KHz                 -80 dBc/Hz

                                100  KHz                 -90 dBc/Hz

                                     1  MHz              -100 dBc/Hz

Power Supply:                                       115/230 VAC +/- 10%, (internally selectable)

Mechanical:                                            19 inch Rack mount, 1RU high, 15 inches deep