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Multifunctional Information Distribution System Low Volume Terminal (MIDS LVT)

Frequently asked questions about MIDS LVT, low-cost fighter terminal with flexible, open-architecture designs

Frequently asked questions

The MIDS LVT provides two secure voice channels, supporting both 2.4 Kbps and 16 Kbps voice.

A Block Cycle Upgrade is an upgrade to the government furnished CORE and TIO software that is loaded into the MIDS LVTs.These software releases are controlled by the MIDS PO. A Block Upgrade is an upgrade made either to software or hardware that is under the control of the Vendor.

A FIM is a Functional Input Message used for Host-to-Terminal communication transmission on the host bus. FOM is a Functional Output Message used for Terminal-to-Host communication transmission on the host bus.

The Support Port is an Ethernet interface of the LVTs that provides access to detailed performance data, much of which is not available on the normal Host interface. The Support Port can also be used for software loading.

Tactical Air Navigation (TACAN) is a military navigation system. It provides the user with distance and bearing and operates with a channel spacing of 1 MHz in the frequency band 962 – 1213 MHz.

Yes. The MIDS LVT requires the installation of three 3.0 Volt Lithium-Manganese Dioxide Non-Rechargeable Batteries
  • Ultralife Part Number: U10025 (replaces U2550HCES-F95)
  • NSN: 6135-01-545-6582
  • Nominal battery life is 6 – 8 months
  • 10-year shelf life
  • Storage and disposal in accordance with local HAZMAT procedures
The Ultralife batteries CANNOT be substituted with standard C Cell batteries.

The batteries serve two purposes. The first is to retain the Crypto keys when the MIDS terminal is in the "Stand-by" mode.
The second is to retain Crypto keys and Link 16 data when the terminal is in the "On" position during power interruptions.

All 3 cells MUST be replaced at the same time. Follow your local maintenance instructions for proper removal and installation of the batteries.
Note: The wedgelocks for the batteries and battery compartment cover have specific torque requirements.

A notch filter is used to pass a majority of frequencies unaltered, but attenuate those in a specific range to very low levels.
Link 16 uses internal notch filters to attenuate the 1030 / 1090 frequency bands which are used for IFF.
External notch filters are used for additional protection from transmission in unauthorized frequencies.
Coordinating airborne, maritime and ground forces
Situational awareness or command and control
Low-cost fighter terminal with flexible open architecture design