GRM 700

rugged satellite modem

GRM 700

GRM 700 offers the high-performance features of iDirect’s X7 series in a low-cost rugged housing, making it ideal for users looking for a lightweight, compact satellite modem suited to challenging environments


  • iDirect Evolution and Velocity compatible
  • Operational on all major satellite networks
  • Designed for outdoor use
  • Ruggedised IP67 design
  • CE marked
  • Terminal agnostic
  • Lightweight and low power requirements
  • 256-bit AES Link Encryption (optional)
  • Suitable for both fixed and mobile applications


  • Defence
  • Government
  • Oil, Gas and Mining
  • Commercial

GRM Series

Developed in conjunction with leading satellite hardware and airtime providers, GRM (GRC Rugged Modem) have been tested into iDirect hubs across multiple satellite service provider networks. Supporting both fixed location and mobile applications, they have been extensively trialled on a diverse range of terminals from comms-on-the-move (COTM), to man portable and large static dishes.

Compatible with Evolution and iDirect Velocity networks, IP67 rated and CE Marked, GRM modems are designed to meet defence and commercial requirements, while still delivering a cost-effective modem, that’s flexible enough to operate on a diverse range of terminals and networks, yet intuitive enough for end users with minimal training.


Network Configuration
CompatibilityEvolution® and iDirect Velocity™ compatible
Network TopologyDVB-S2 with Adaptive TDMA Returns
FECLDPC 1/4-8/92D 16-State 1/2-6/7
Maximum Rates (Symbol)45 Msps7.5 Msps
Spread SpectrumSF: 2, 4, 8; Up to 7.5 Mcps
SATCOM InterfacesTx: SMA, 950-2400 MHz, +5dBm/-35dBm, 50Ω
Rx: SMA, 950-2150 MHz, -5dBm (max) composite/ -130+10*log (Sym rate) dBm (min) single carrier, 50Ω
Rx Reference Port (Out): SMA, 50Ω
Software controllable 10/50 MHz reference on Tx and Rx Reference Port Out
Available BUC Power (IFL)+24V, 2.0A max available @ connector Tx Out (Combined Tx and Rx power not to exceed 50W)
Available LNB Power (IFL)13, 18, 21V @ 0.5A (Combined Tx and Rx power not to exceed 50W), 22kHz tone @ connector Rx in
Data Interfaces
LAN: Dual 10/100/1000 Mbps Ethernet
RS-232 Console
RS-232 Serial NMEA GPS input
RS-422 Keyline
RS-422 BUC control
RS-422 Filter Select
Protocols SupportedTCP, UDP, ACL, ICMP, IGMP, RIP Ver2, Static Routes, NAT, DHCP, DHCP Helper, Local DNS Caching, OpenAMIP, cRTP and GRE
Security256-bit AES Link Encryption (optional)
Size5 x 30 x 27 cm (Height x Width x Depth)
Weight3.3 kg
IP (Ingress Protection) RatingIP67 – Dust tight and protected against immersion for 30 minutes at depths 150mm – 1000mm
Operating Temperature-40 to +140 F (-40 to +60 C)
AltitudeOperational: Up to 15,000 ft (4,572m); Storage: Up to 40,000 ft (12,192m)
Humidity95% non-condensing humidity
Input Voltage12-24VDC
Power ConsumptionLess than 20W
CertificationsCE Marked

Maximum downstream and upstream data rates cannot be achieved simultaneously. Maximum rates are achieved with optimal configurations.
Specifications are subject to change without notice.