Multiband Capability

Maritime Radio (156 MHz to 173.975 MHz, FM)

This frequency range is particularly important for naval aircraft, to enable communications with civil boats, ships and harbor authorities. All R&S®M3AR series support the maritime band in line with international and U.S. frequency tables. When needed, the R&S®MR6000A also monitors the maritime distress frequency on channel 70 of the GMDSS (156.525 MHz).

VHF Combat Net Radio (30 MHz to 87.975 MHz, FM)

Ground forces use this frequency range to send and receive tactical information in the form of voice or data messages. So that aircraft, particularly army helicopters, can provide effective support to forces on the ground, they must be equipped with an interoperable communications system.

The R&S®M3AR family supports the 30 MHz to 87.975 MHz tactical VHF frequency range and can thus switch to a specific frequency in this range when required. The R&S®MR6000A also features embedded NATO encryption for interoperability with NATO partner combat net radio equipment.

NATO uses the HAVE QUICK I/II and SATURN frequency hopping methods in the UHF range, which can be optionally combined with encryption. These NATO methods can be integrated in the R&S®M3AR transceivers upon request to ensure international interoperability.

R&S®SECOS can operate on any number of frequencies in the entire UHF range. Up to 128 participants can exchange information over a TDMA network. R&S®SECOS supports both voice and data, features embedded encryption and can optionally be installed in parallel with HAVE QUICK I/II. Switching between the methods is made possible by simply changing the preset.

The R&S®MR6000A features a Link 11 interface for participating in tactical data links in the UHF range in line with STANAG 5511 and MIL-STD-188-203-1A.

Civil and Military Air Traffic Control as well as Information Services (108 MHz to 136.975 MHz and 225 MHz to 399.975 MHz, AM)

The R&S®M3AR transceivers offer the flexibility to use civil as well as military air traffic control frequencies with the corresponding channel spacing. Furthermore, reception is also possible in offset carrier mode with 25 kHz and 8.33 kHz channel spacing. An additional guard receiver makes it possible to monitor not only the 121.5 MHz and 243 MHz distress frequencies of civil and military aviation, but also of the 40.5 MHz tactical VHF band. The R&S®MR6000A can also monitor the 156.525 MHz maritime distress frequency. The guard receiver has a mode for constantly scanning the frequencies and locking onto the corresponding receive frequency.

Information services such as automatic terminal information service (ATIS) can be received in the 108 MHz to 136.975 MHz frequency range. To avoid incorrect operation, for air navigation services the 108 MHz to 117.975 MHz frequency range is receive only and the 108 MHz to 136.975 MHz frequency range can only be used in AM mode.

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