isis – txs small satellite s-band transmitter · the isis txs is a cubesat standard compatible...
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ISIS – TXS Small Satellite S-Band Transmitter
Overview
The ISIS TXS is a CubeSat standard compatible transmitter module designed specifically for nanosatellite
applications. The TXS transmitter is very flexible and thus works at S-band frequencies from 2100 MHz to
2500 MHz and supports BPSK, or GMSK modulation schemes. TXS can provide downlink data rates up to
100 kbps, while featuring low power consumption.
Features
• Specifically designed for LEO applications • Excellent performance versus size • High data rate downlink capability • Low power consumption • BPSK or GMSK downlink modulation scheme • Wide frequency range
(commercial / scientific / ISM / amateur S-band) • Data rate and power agile • Flexible modulation schemes / bit shaping
• Available from Q2 2012
Available Configurations
• Higher RF output power • Custom form factors /
connector interfaces • I2C interface • Version for sounding rocket
applications
Included with shipment
• TXS S-band transmitter • User Manual
• Two 52 pin SAMTEC ESQ-126-39-G-D or ESQ-126-21-G-D connectors
Compatibility
• Compatible with standard CubeSat components available from ISIS and other suppliers
• Compliant with CubeSat standard
v.12.4
ISIS - TXS Small Satellite S-Band Transmitter
Specifications
Frequency agile (PLL controlled)
RF frequency range 2100 MHz – 2500 MHz
RF output power Controllable up to +28 dBm
Data rate Selectable up to 100 kbps
Modulation BPSK or GMSK available
Power consumption ≤ 4 W
Power supply Single 6.5 – 30 VDC or 5V and 3V3 from EPS
Frequency accuracy ± 10 KHz
Frequency stability 20 ppm
VSWR 1.5
Operational temperature range -20° to +60°C
Mass 62g
Form factor 90x96 mm (104 pin CubeSatKit bus compatible)
Telemetry Outputs (over I2C)
• Power amplifier & board temperature • Current consumption & bus voltage • Lock status of frequency synthesizers
Qualification and Acceptance Testing
Test QT AT
Functional
Vibration
Mechanical Shock
Thermal Cycling
Thermal Vacuum
Total Ionizing Dose QT is performed on the design/qualification model
AT is performed on the unit to be shipped
Interfaces
• 104 pin CubeSat Kit stackthrough connector carrying: • 6.5-30V DC power supply or 5V/3V3 • I2C bus interface • RF output: SMA or MCX 50 ohm
This document is subject to change without notice. The latest technical information and price information is available on www.cubesatshop.com
ISIS – Innovative Solutions In Space Molengraaffsingel 12-14, 2629 JD, Delft, The Netherlands • T +31152569018 • F +31152573969 • [email protected] • www.isispace.nl
S-Band Transmitter Block Diagram