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STC93701U is fully synthesized line of Ku DBS Bands frequency Upconverters provides highperformance,
convenient and economical solution for systems, requiring IF to Ku DBS -bands interface.
PERFORMANCE
Fine frequency resolution, impressive amplitude linearity, low phase noise, exceeding the Intelsat
phase noise mask for IBS and IDR, spectral purity, high dynamic range make this converter ideally
suitable for all current high speed data transmission rates and advanced digital modulation
schemes.
MONITORING & CONTROL
Front panel hardware switch is used for selecting local or remote RS-232RS485 monitoring and control
(M&C) interfaces. Optionally a converter unit can be equipped with Ethernet M&C interface.
Simple ASCII commands used to control and set the converter parameters can be customized on
request to fit existing M&C system.
Applications
Satellite ground stations
Satellite multi-service
systems
Fly-Away Terminals
Key Features
Standard and extended
Ku-Bands
125 kHz or optional 1KHz
frequency resolution
Amplitude and group
delay equalization
Exceptional gain stability
User friendly interface
Automatic sense of
external 10 MHz
reference
Options
Redundancy switching
capabilities (external or
build in)
Choice of 70MHz or
140MHz IF
Ethernet remote
monitoring and control

STC83701U is fully synthesized line of Ku-Band frequency Upconverters provides high-performance,
convenient and economical solution for systems, requiring IF to Ku-band interface.
PERFORMANCE
Fine frequency resolution, impressive amplitude linearity, low phase noise, exceeding the Intelsat
phase noise mask for IBS and IDR, spectral purity, high dynamic range make this converter ideally
suitable for all current high speed data transmission rates and advanced digital modulation
schemes.
MONITORING & CONTROL
Front panel hardware switch is used for selecting local or remote RS-232RS485 monitoring and control
(M&C) interfaces. Optionally a converter unit can be equipped with Ethernet M&C interface.
Simple ASCII commands used to control and set the converter parameters can be customized on
request to fit existing M&C system.
REDUNDANCY
Redundancy for 1:1 systems is offered either by built-in redundancy switch module or an external rackmounted
redundancy switching unit STC 83201SW, redundancy for 1: N system is offered by a standalone
redundancy switching unit STC 8320NSW.
Applications
Satellite ground stations
Satellite multi-service
systems
Fly-Away Terminals
Key Features
Standard and extended
Ku-Bands
125 kHz frequency
resolution
Low group delay
distortion
User friendly interface
Automatic sense of
external 10 MHz
reference
Options
Redundancy switching
capabilities (external or
build in)
Choice of 70MHz or
140MHz IF
Ethernet remote
monitoring and control

STC 93801D fully synthesized line of C-Band frequency Downconverters is providing a highperformance,
convenient and economical solution for systems, requiring C-Band to IF interface.
PERFORMANCE
Fine frequency resolution, impressive amplitude linearity, low phase noise, exceeding the Intelsat
phase noise mask for IBS and IDR, spectral purity, high dynamic range make this converter ideally
suitable for all current high speed data transmission rates and advanced digital modulation
schemes.
MONITORING & CONTROL
Front panel hardware switch is used for selecting local or remote RS-232RS485 monitoring and control
(M&C) interfaces. Optionally a converter unit can be equipped with Ethernet M&C interface.
Simple ASCII commands used to control and set the converter parameters can be customized on
request to fit existing M&C system.
Applications
Satellite ground stations
Satellite multi-service
systems
Fly-Away Terminals
Key Features
Standard and extended
C-Bands
125 kHz or optional 1KHz
frequency resolution
Excellent phase noise
Group delay and
amplitude equalization
User friendly interface
High gain stability
Automatic sense of
external 10 MHz
reference
Options
Redundancy switching
capabilities
Choice of 70MHz or
140MHz IF
Ethernet remote
monitoring and control
Dual IF Output

STC 93801U fully synthesized dual conversion C-Band Upconverter module is providing a highperformance,
convenient and economical solution for systems, requiring IF to C-Band interface.
PERFORMANCE
Fine frequency resolution, impressive amplitude and phase linearity, maintained by an internal
amplitude and group delay equalizer and low phase noise, exceeding the Intelsat phase noise mask
for IBS and IDR, spectral purity, high dynamic range make this converter ideally suitable for all
current high speed data transmission rates and advanced digital modulation schemes.
MONITORING & CONTROL
Front panel hardware switch is used for selecting local or remote RS-232RS485 monitoring and
control (M&C) interfaces. Optionally a converter unit can be equipped with Ethernet M&C interface.
Simple ASCII commands used to control and set the converter parameters can be customized on
request to fit existing M&C system.
Applications
Satellite ground stations
Satellite multi-service
systems
DVB Uplinks
Key Features
Standard and extended
C-Bands
125 KHz or 1KHz
frequency resolution
Excellent phase noise
Low group delay
distortion
User friendly interface
Automatic sense of
external 10 MHz
reference
Options
Redundancy switching
capabilities by a built-in
switch or an external
rack mounted switching
unit.
Choice of 70MHz or
140MHz IF
Ethernet remote
monitoring and control

The STC 83601U is a high-performance, low-cost synthesized dual conversion Upconverter, providing solution for satellite systems requiring frequency conversion up from IF to L-Band.

Impressive amplitude linearity, ultra low phase noise, far exciding IESS 308 IESS 309 requirements, low spurious, high dynamic range make the converter ideally suitable for SCPC, MCPC, DAMA with high data rates transmission and advanced digital modulation.

The STC 83601U standard model has +15 dBm minimum output power level at P1dB compression point and 30dB gain, which allows for longer cable runs, making it possible in many cases to work without external line amplifiers.
Features Highlight:

Built-in 1:N redundancy switching capabilities
Exceptional performance parameters, low cost by design
Local and remote RS485RS422RS232 monitoring and control interfaces
Automatic 10 MHz internalexternal reference selection (auto-sensing)
10MHz reference signal out for ODU, user controlled
Built-in internal temperature and output power monitoring
RF Mute mode, 80 dB minimum
Smart 2 fans air cooling system
Customization to user requirements is available
Applications

Digital Satellite News Gathering systems (DSNG)
Uplinks systems
Fly-Away Terminals
Satellite multi-service systems
Satellite ground stations
VSATs and Hubs
Options

125 kHz frequency step size
18VDC24VDC48VDC support for outdoor equipment
High-stability reference

The STC 83601D is a high-performance, low-cost fully synthesized Downconverter, providing solution for satellite systems requiring frequency conversion down from L-Band to IF 70MHz or 140MHz. Impressive linearity, low phase noise, low spurious make the converter suitable for working with high bit rates signals. Low power consumption and 2 fans smart air-cooling system insurers the optimum thermal mode, therefore increasing the reliability of the unit and the service life of fans.

Features Highlight:

Compliant with IESS 308 IESS 309 requirements
Automatic 10 MHz internalexternal reference selection (auto-sensing)
Software selectable spectrum inversion
Flat frequency response
Advanced local and remote monitoring and control interface
Built-in 1:N redundancy switching capabilities
Applications

Fly-Away Terminals
Satellite multi-service systems
Satellite ground stations
VSATs and Hubs
Options

125 kHz frequency step size
High-stability reference

STC 83204SW redundancy 1:N switch is a robust, user friendly and economical solution for critical applications, where minimum downtime is required. It is designed to be used as a part of Sotca's frequency converters redundant system and it is fully compatible with all STC 83xxxx converters models. When operated in "Auto" mode, the unit monitors alarm signals of an on-line converters. If fault is detected, the switch will automatically fall over to the hot stand-by unit. Using manual mode, any unit can be maintained, troubleshooted and replaced on the fly, without affecting the link. STC 83201SW's high isolation level, low return loss assure high performance of the system and ultra low level of cross-interference. Unit comes in a standard 1U(1.75") 19" Rack-mounted enclosure. The model STC 83204SW pictured above features a 4:1 configuration, but it could be supplied in any configuration, up to 8:1.

Features Highlight:

User-friendly interface, featuring manual (test) and auto mode.
Hot redundancy to reduce downtime and increase reliability of the entire system
Fast switching
On the fly failed unit replacement
Applications

VSAT terminals and Hubs
Network hubs or remote sites
Broadcast
Telephony
Monitoring downlink stations
Options

Remote control
High-quality matched cables and accessories
DC power to ODU can be provided
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STC 83201SW redunduncy 1:1 switch is simple, robust, user frendly and economical solution for critical applications, where minimum downtime is required. It is designed to be used as a part of Sotca's frequency converters redundant system and it is fully compatible with all STC 83xxxx and STC 93xxx synthesized converters models. When operated in "Auto" mode, the unit monitors alarm signals of an on-line converter. If fault is detected, the switch will automatically fall over to the hot stand-by unit. Using manual mode, any unit can be maintained, troubleshooted and replaced on the fly, without affecting the link. STC 83201SW high isolation level, low return loss assure high performance of the system and ultra low level of cross-interference. Unit comes in a standard 1U(1.75") 19" Rack-mounted enclosure.

Features Highlight:

User-friendly interface, featuring manual (test) and auto mode.
Hot redundancy to reduce downtime and increase reliability of the entire system
Fast switching
On the fly failed unit replacement
Applications

VSAT terminals and Hubs
Network hubs or remote sites
Broadcast
Telephony
Monitoring downlink stations
Options

Remote control
High-quality matched cables and accessories
DC power to ODU can be provided

STC 300 Series Block converters are indoor, 1U rack mounted units, with custom fixed gain set at the factory. Each unit may be configured to include one or two different converter's modules. High stability internal reference oscillator and high quality low noise power supply are standard features for these converters. Propriatory in-house designed and build filtering components assure spurious free spectrum in band as well as out of band.

The STC 8360UD is a high-performance, fully synthesized L-Band UpDownconverter indoor unit, housed in a light standard 1RU (1.75 in.) 19"wide rack, providing space-saving and convenient solution for systems, requiring frequency conversion between IF(70MHz or 140MHz) and L-Band interfaces.

The unit contains independently synthesized L-Band Up and Down converter modules, monitor and control microprocessor board, internal reference source and AC voltage auto-sensing power supply.

Impressive amplitude linearity, ultra low phase noise, far exciding IESS 308 IESS 309 requirements, low spurious, high dynamic range make the converter ideally suitable for SCPC, MCPC, DAMA with high data rates transmission and advanced digital modulation.
Features Highlight:

Independently synthesized up and down frequency conversion
Dual conversion frequency plan
User friendly interface
Excellent phase noise, far exceeding IESS 308309 standards
Exceptional amplitude linearity, very low intermodulation
External 10MHz reference input, automatic sense of external reference signal
Software selectable spectrum inversion on Downconverter
Advanced local and remote RS485RS422 and RS232 monitoring and control interface
Smart 2 fans air cooling system
Applications

Fly-Away Terminals
Satellite multi-service systems
Satellite ground stations
VSATs and Hubs
Options

125 kHz frequency step size
High-stability internal reference
VDC support of ODUs, different voltages are avalable
10 MHz reference out mute control