U7900 – High-Performance Networking Satellite Modem/Router
SpaceBridge Inc.
Professional satellite modem/router for hybrid GEO/MEO/LEO operation, integrating with the ESTELLA VSAT platform for high-throughput HTS connectivity.
Typed specifications81 values
Discloses 9 of 11 fields engineers filter by in this category (category median 6).
- Mass
- 3 400 g datasheet p.2 3 400 g 7.5 lbs
- Link protocols and waveforms
- DVB-S2X, DVB-RCS2 datasheet p.1 DVB-S2 forward link | DVB-RCS2 MF-TDMA return link, Annex M mobility | other OpenAMIP | proprietary WaveSwitch dSCPC / 3D-TDMA return link +5
- Frequency range
- 950–2 150 MHz forward link RX · datasheet p.2 950–2 150 MHz RX | 950–2 400 MHz terminal IFL TX
- Envelope (L×W×H)
- 435 x 45 x 272 mm datasheet p.2 435 x 45 x 272 WxHxD
- TX RF output power
- 0.001 W max · Tx power (IF) · datasheet p.2 0–0.001 W
- Data rate
- 100 000 kbps download speed · datasheet p.2 700 000 kbps downstream | 25 000 kbps upload speed | 50 000 kbps upstream | 100 000 kbps max · RX download speed (spec table p.2) +3
- Modulation
- QPSK DVB-RCS2 · datasheet p.2 QPSK to 256 APSK Forward Link | QPSK, 8PSK, 16QAM Return Link | QPSK RX forward DVB-S2/S2X (QPSK to 256 APSK); TX return | 256APSK RX forward link (QPSK to 256 APSK) +13
- Supply voltage
- 24 V nom. · 24VDC input · datasheet p.2 24 V | 24 V input | 100–240 V Option | 100–240 V option, 47-63 Hz
- Power consumption
- 30 W supported to modem and LNB (text says 'U7780 modem') · datasheet p.2 100 W to BUC | 100 W to the BUC | 30 W to U7780 modem and LNB
- Data interface
- Ethernet 1x1000BaseT user + 1x1000BaseT MGMT · datasheet p.2 Ethernet MGMT ports | Ethernet User ports
- Operating temperature
- 0–60 °C datasheet p.2 0–60 °C printed -4В°F to 140В°F (0В°C to 60В°C)
- Function
- modem satellite modem/router · datasheet p.1
- Link use
- ground modem ESTELLA VSAT platform, GEO/MEO/LEO · datasheet p.1
- Frequency band
- L Forward Link (Rx) · datasheet p.2 L L-band IF, satellite/band independent | L Terminal IFL TX
- Instantaneous bandwidth
- 500 000 kHz max · forward link RX instantaneous bandwidth · datasheet p.2
- RF connector
- F IF RX, 75 Ohm · datasheet p.2 F IFL TX, 75 Ohm | F Terminal IF RX Interface | F Terminal IFL TX Interface
- Connector
- F-type 75 Ohm Terminal IF RX Interface · datasheet p.2 F-type 75 Ohm Terminal IFL TX Interface
- Satellite class
- GEO datasheet p.1 CubeSat LEO | microsat 10-100 kg MEO
- Channel coding (FEC)
- LDPC forward link, LDPC/BCH · datasheet p.2 turbo return link, 16-State (2D)-TurboPhi | BCH forward link, LDPC/BCH
- Encryption
- AES-256 optional, IPSec up to AES256 · datasheet p.2 IPsec optional, up to AES256 | AES-256
- Data interface speed
- 1 000 Mbps Ethernet 1000BaseT · datasheet p.2
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier7 lines, in the manufacturer's own wording
- Forward link
- 5000 MHz DVB-S2X with highly granular MODCODs and low roll-off rates
- Return link
- DVB-RCS2 TDMA supporting QPSK-16 QAM with up to 5% roll-offs
- Dynamic switching
- WaveSwitch™ error-free switching every 26.5 ms between 3D-TDMA and dSCPC
- Optimization
- Performance Enhancement Proxy, QoS, Layer-2/3 traffic optimization
- Cellular support
- 2G, 3G, 4G, LTE/5G backhaul and enterprise optimization
- Downstream throughput
- Up to 700 Mbps
- Upstream throughput
- Up to 50 Mbps
About
The U7900 is a professional satellite modem/router designed for hybrid operation across GEO, MEO, and LEO satellite constellations, integrating with the ESTELLA VSAT platform to deliver high-performance connectivity over High Throughput Satellite (HTS) networks. It complies with DVB-RCS2 standards and incorporates WaveSwitch technology for dynamic, hitless switching between TDMA and SCPC return-link waveforms. The modem supports both Layer 2 and Layer 3 networking for diverse applications including homeland security, defense, enterprise, cellular backhaul, and government communications, delivering up to 700 Mbps downstream and 50 Mbps upstream throughput. It supports the OpenAMIP standard and DVB-RCS2 Annex M-compliant multi-beam mobility technology for seamless beam switching across HTS and multi-orbit networks, with integrated L2/L3 optimization, cellular traffic compression, and 4G/LTE/5G GTP acceleration.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.