The LT-3600 has been discontinued. Please contact your sales person for details on a comparable replacement.
One Rack Unit High
70 MHz or 140 MHz IF
Up and Down Converter
Up to 1000 MHz Bandwidth
LCD & Keypad Front Panel
LNB & SSPB Support
125 kHz Step Size
Phase Noise Better than Intelsat IESS 308/309
1:1 through 1:8 RS and STARswitch™ compatible
LT-3600 Series L-Band Up/Down Converter
The General Dynamics SATCOM Technologies (formerly VertexRSI) LT-3600 L-Band Up/Down Converter is a fully synthesized up and
down converter covering 575 or 1000 MHz bandwidth receiving RF frequencies in up to 125 kHz steps. The unit incorporates extensive monitor and control functions that are accessible from the front panel as well as through a
remote RS- 232/422/485 bus.
The LT-3600 can be configured to accommodate various requirements involving an IF of 70 or 140 MHz, non-inverted or inverted spectrum,
with standard or highstability 10 MHz reference oscillator or any combination the user desires. Combined with jumper selectable and user
programmable options, the LT-3600 is flexible to user requirements.
Complete, Independent, Up and Down Converters in a single 1 RU package
Dual stage, synthesized up and down converters.
950 to 1525 MHz Std. or Extended 950 to 1950 MHz.
Inverting and Non-inverting LNB support.
Inverting or Non-inverting Up Converter Spectrum
Calibrated Gain and Level Monitoring.
Programmable cable slope compensation.
Low microphonic design
Full monitoring and control through LCD and Keypad Front Panel or serial
User programmable, Nonvolatile memory for multisatellite operation.
Front Panel RS-485 Address, Alarm Masking, Reference Offset, Frequency, and
RS-232, RS-422, RS-485 Serial interface for remote M&C
Universal 115/230 VAC Power Supply Input
Automatic switch over to External 10 MHz Reference
Flexible design can adapt to most user configurations
Internal High Stability 10 MHz Reference (Optional)
DC and Reference Mux. on L-Band cables for external SSPB and LNB (Optional)
Wideband 950 - 1950 MHz (Optional)
All the operating controls and indicators for the
Integrated L-Band Up/Dn Converter are
located on the front panel. The front panel is
depicted in Figure 1-1. Alarm and level
monitoring of the L-Band Up/Dn Converter
CCA, an external LNB, and SSPB modules is
accomplished through the front panel display
and keyboard interface.
The rear panel is depicted in Figure 1-2. It
incorporates, from left to right, Grounding Lug
(GND), Power Connector, Optional 10MHz
high stability reference output (J1), 10 MHz
reference input (J2), IF Out (J3), L-Band In
Integrated L-Band Specifications
Input Frequency Range
50 to 90 MHz
Input Level Range
-20 to -40 dBm
Output Frequency Range
950 to 1525 MHz
950 to 1950 MHz (Optional)
Output Return Loss
10 to 30 dB (0.5 dB steps)
Gain Linearity (over 10 dB)
Gain Linearity (over 20 dB)
Gain Stability (0 to +50 °C)
Amplitude Response (over any 36 MHz)
Amplitude Response (over 875 MHz)
Output Power (1 dB GCP)
+10 dBm (minimum)
3rd Order Intermodulation (for 2 car. each at 0 dBm o/p)