AT RF2050 MultiBand Mobile Transceiver
| AT RF2050 ECCM mobile multiband transceiver, belonging to the AT RF20 family of multiband tactical radios with increased resistance to radioelectronic warfare, is designed for installation into any kind of tracked or wheeled vehicles. Small footprint, robust design and outstanding features add to its great utility, especially in modernization of the existing vehicular installations. AT RF2050 transceiver is produced in two variants: without co-site filter var. 01 and with co-site filter var.02. The built-in modem ensures data communication in tactical IP networks according to MIL-STD-188-220B. |
Operating features
a) in all operation modes
• automatic self-test after power-up, with failure indication on the transceiver display (BITE);
• operational data programming from external units;
• emergency erasure of operation data on fixed frequency channels, including encryption unit codes and information for FH networks including
TRANSEC and COMSEC;
• acoustic signaling switching on/off by transceiver operator;
• transmission of tone calling (1000 ± 200) Hz, in VHF III band (1750 ± 25) Hz;
• display and keypad backlight;
• adjustable display contrast;
• transmission power signaling on the display, transmission signaling by LED on the top panel;
• operation channel signal reception signaling by a LED on the transceiver panel;
• transmitter overheat signaling LED on the transceiver panel with automatic switching to lower power output;
• signaling of active mode with co-site filter (version 2310.100.01);
• optional external cooling box for improved cooling efficiency;
• “reception only” mode, with transmission disabled;
• whisper mode with increased microphone sensitivity and decreased audio volume;
• loud received signal monitoring with volume regulation and LED signaling;
• configurable transceiver output for operation with antennas for VHF I, VHF II and VHF III tactical bands;
• displaying of servicing information – firmware;
• easy to control.
b) in fixed frequency mode
• max. 10 presets from the entire frequency range 25 MHz to 145.9875 MHz, fewer preset channels if occupied by FH networks;
• simplex or semi-duplex operation;
• 150 Hz sub-tone squelch or signal squelch (only signal in VHF II);
• voice operation via internal encryption unit compatible with RF13, RF20;
• transmission and reception of short encrypted messages – FLASH, with the opposite transceiver identification;
• channel parameter programming from keypad;
• preset channel scanning;
• data transmission according to MIL-STD-188-220B compatible with modems MD13.1, MD13.2;
• direct dialing when calling from transceiver to a fixed telephone network;
• operation frequency setting in 6.25 kHz, 8.33 kHz, 25 kHz or 1 MHz steps;
• transmission band for digital voice and data transmission 16 kbit/s according to STANAG 4204, edition 2.
c) in FH operation
• max. 6 network presets;
• o p e r a t i o n i n f r e q u e n c y r a n g e 3 0 . 0 0 0 MHz t o 87.975 MHz;
• secure operation TRANSEC and secret operation COMSEC;
• compatibility with RF20 transceiver;
• selectable frequency hopping operation mode – FH, DFF, FCS and MIX, or SFH, SDFF, SFCS and SMIX with quick transition to HLC, HLG or HLA;
• establishing of connection with fixed frequency transceivers through HLC and HLG monitoring;
• 121.500 MHz (HLA) frequency monitoring and transition to HLA with transmission disabled;
• late net entry with synchronization request;
• master transceiver switching depending on the network condition;
• transmission of warning message to all network participants;
• MASTER transceiver authentication request;
• MASTER transceiver selective communication with a selected slave transceiver;
• transmission and reception of short text message, maximum 156 characters;
• transmission over notification (BREAK IN) by MASTER transceiver;
• INTERLEAVING switching off for close-to-the-limits communication;
• data transmission at adjustable rates – 7100 bit/s, 4800 bit/s and 2400 bit/s.
Technical parameters
| Frequency range | 25.0000 MHz to 145.9875 MHz |
| Nominal input/output impedance | 50 Ω |
| Frequency ranges | |
| HF | 25.000 MHz to 29.975 MHz |
| VHF I | 30.000 MHz to 108.000 MHz |
| VHF II | 117.975 MHz to 140.000 MHz |
| VHF III | 140.0250 MHz to 145.9875 MHz |
| Type of modulation | |
| HF | F3E (FM) |
| VHF I | F3E (FM) |
| VHF II | A3E (AM) |
| VHF III | F3E (FM) |
| Channel spacing | |
| HF | 25 kHz |
| VHF I | 25 kHz; 12.5 kHz; 6.25 kHz |
| VHF II | 25 kHz; 8.33 kHz |
| VHF III | 25 kHz; 12.5 kHz |
| Number of operation channels with 25 kHz spacing | |
| HF | 200 |
| VHF I | 3121 |
| VHF II | 882 |
| VHF III | 239 |
| Preset channels | 10 |
| Monitored channels in all special operation modes | 3 (two selectable, third fixed – 121.500 MHz) |
| Maximum number of programmable nets | 6 |
| Special operation modes (usable in 30 MHz to 88 MHz band) | |
| FH | frequency hopping |
| DFF | digital fixed frequency |
| FCS | free channel search |
| MIX | mixed operation FH and FCS |
| SFH | secure frequency hopping |
| SDFF | secure digital fixed frequency |
| SFCS | secure free channel search |
| SMIX | mixed mode SFH and SFCS |
| Time to initial synchronization | max. 7 s |
| Time of autonomous synchronization holding | 48h |
| Minimum number of operation frequencies for FH operation | 4 |
| Hopping rate | 100 hops/s |
| Interface for data transmission | USB/RS232 |
| Power supply (according to MIL-STD-1275B) | |
| Nominal supply voltage | 12 VDC or 24 VDC |
| Limit supply voltage | 10 VDC to 33 VDC |
| Current consumption | |
| • Transmission - nominal output power (at 12 V) | 25 A |
| • Transmission - nominal output power (at 24 V) | 12 A |
| Transmitter parameters | |
| Nominal output power | FM 50 W |
| Nominal output power | AM 15 W |
| Reduced output power | FM 5 W |
| Reduced output power | AM 2 W |
| Harmonic suppression | min. 60 dB |
| Spurious suppression at ∆f > 25 kHz | min. 70 dB |
| Time of continuous operation at +50 °C at duty cycle reception : transmission = 1 : 1 | without limit |
| Average ranges in medium undulated terrain at nominal power FF mode (with antenna 2.55 m) | 25 km |
| Receiver parameteres | |
| Sensitivity (VHF I, VHF II, VHF III) | 0,5 μV at 12 dB SINAD |
| Sensitivity (HF) | 0.6 μV at 12 dB SINAD |
| AF output | 1 W |
| Range of effectively transmitted frequencies | |
| • voice | 300 Hz to 3000 Hz |
| • data | 10 Hz to 11000 Hz |
| Environmental specification (according to MIL-STD-810E) | |
| Operating temperatures | -30 °C to +60 °C |
| EMI | according to MIL-STD-461E |
| Mechanical specification | |
| Dimensions [w x h x d] | |
| • without cooling block | 202 mm x 210 mm x 186 mm |
| • with cooling block | 202 mm x 231 mm x 186 mm |
| Weight | |
| • without co-site filter | 8.5 kg |
| • with co-site filter | 9 kg |
Package
ECCM mobile transceiver package AT RF2050
Accessories
- Mobile set frame
- Handset RF13.3
- Handset holder
- Power supply cable 3 m
- Grounding
- Vehicle antenna VHF 2.6 m
- Vehicle whip antenna MO13.50
- Vehicle whip antenna with magnetic holder MO13.51
- Groundplane antenna
- Discon antenna
- Log-periodic antenna
- Telescopic mast 9 m
- Telescopic winch driven mast 10 m
- Handheld microphone/speaker RM1301
- Fill gun set PK20
- CD for modem configuration ModEx
- Cooling block
- Antenna cable (3 m)
- Antenna cable (10 m)
- PC interconnection cable
- RF headsets
- HS headsets