AR20 - Automatic rebroadcast station
The AR20 automatic rebroadcast station is a device allowing automatic rebroadcasting in fixed frequency operation modes of transceivers complying with the requirements of the STANAG 4204 standard and of transceivers communicating in frequency hopping modes using HW20 modulation, i.e. RF23, RF20, RF2050.
• Automatic rebroadcasting of services in simplex or semi-duplex frequency hopping channel, such as transmission of short text messages, ALERT, authentication, and notification of interruption BREAK IN.
• Automatic rebroadcasting of P2P data communication or according to MIL-STD-188-220 (NET) in simplex or semi-duplex frequency hopping channel.
• Automatic synchronization of all terminal transceivers from the AR20.
• Automatic rebroadcasting of voice communication in simplex or semi-duplex fixed frequency channel or frequency hopping channel.
• Automatic rebroadcasting of data communication in simplex or semi-duplex fixed frequency channel according to MIL-STD-188-220 (NET).
• Automatic rebroadcasting of voice communication in simplex or semi-duplex fixed frequency channel with encryption unit enabled.
• Automatic rebroadcasting of short encrypted FLASH messages in simplex or semi-duplex fixed frequency channel.
• Rapid transition to radio communication between AR20 and terminal transceivers without rebroadcasting to another network.
• Connection to a third radio station, which is a terminal transceiver of another rebroadcast station, while ensuring compatibility of all types of communication in fixed frequency or frequency hopping channels.
| Frequency range | (25–108) MHz |
|---|---|
| (140.025–145.9875) MHz | |
| Frequency range in frequency hopping modes | (30–87.975) MHz |
| Input and output impedance | 50 Ω |
| Receiver sensitivity | 0.7 μV in (30–90) MHz band |
| 0.6 μV in (25–30) MHz band | |
| 0.5 μV in (90–108) MHz band | |
| (140.025-145.9875) MHz band | |
| Transmitter power | |
| – nominal | 50 W –1/+2 dB at 24 V |
| 50 W –3/+2 dB at 12 V | |
| – reduced | 5 W –1/+2 dB |
| Modulation | FM |
| Frequency deviation | 6.5 kHz or 3.3 kHz |
| Channel spacing | |
| (30–108) MHz band | 25 kHz, 12.5 kHz and 6.25 kHz |
| (25–29.975) MHz band | 25 kHz |
| (140.025–145.9875) MHz band | 25 kHz, 12.5 kHz |
| Channel spacing in frequency hopping modes | 25 kHz |
| Compatibility of operation (1.5 m antennas) | (30–90) MHz |
| Compatibility of operation (30 m antennas) | (25–30) MHz, (90-108) MHz |
| (140.025–145.9875) MHz | |
| Minimum separation between receiving and transmitting frequency | 10 %, for 6 dB receiver sensitivity drop |
| Current consumption during communication, one transceiver transmitting | 25 A at 12 V |
| 12 A at 24 V | |
| Current consumption without communication, receiving transceiver | 2.8 A at 12 V |
| 1.4 A at 24 V | |
| Power requirements | MIL-STD-1275B |
| Operating temperature range | -40 °C to +70 °C |
| Dimensions (without attached cables and cooling unit) | W 430 mm x H 285 x D 225 mm |
| Weight | max. 30 kg |
| Climatic resistance | MIL-STD-810E |
| RF2050 operating instructions | 2310.010.12 |
|---|---|
| RF2050 short operating instructions | 2310.011.12 |
| AR20 operating instructions | 2315.010.02 |
AR20 - Automatic rebroadcast station set
Set consists of RF2050 EPM transceivers, RU20 rebroadcast unit and accessories.
The AR20 automatic rebroadcast station is a device allowing...
| Type designation | Name | PN (RN) | KCM | NSN |
|---|---|---|---|---|
| AR20 | Automatic rebroadcast station set | 2315.000.02 |
RU20 - Rebroadcast unit
The rebroadcast unit is part of the AR20 automatic rebroadcast station that mutually links all transceivers in the automatic rebroadcast...
Frame
The frame is intended for AR20 automatic rebroadcast station and/or it can be used to install two RF2050 transceivers...
AF cable
AF cable
Data cable
Data cable
Grounding
2.6 m VHF vehicle antenna
The antenna is designed for fixed installation on all types of wheeled and tracked vehicles. It has omnidirectional radiation pattern...
Groundplane antenna
The antenna is intended for use on stationary posts. The antenna can be installed on all types of masts supplied...
Discon antenna
Antenna mast
It is intended for use in field conditions to install all types of GROUNDPLANE antennas supplied by DICOM. Individual sections...
RF13.3 - Handset
When connected to the audio connectors of the transceiver, the handset makes it possible to make radio phonic communication and...
Handset holder
Holder
PK20 - Fill gun set
The set is used for operation data programming of the RF13 (including RF1301) and RF20 transceivers. The set consists of...
Data cable (RS232C)
RF cable
High frequency protection 1 GHz 200 V 400 W
CD for modem configuration
ModEx (Modem Expert) application is a universal configuration tool for setting up of network radio modems (compatible with MIL-STD188-220). ModEx...
| Type designation | Name | PN (RN) | KCM | NSN |
|---|---|---|---|---|
| RU20 | Rebroadcast unit | 2315.110.01 | ||
| Frame | 7007.100.72 | |||
| AF cable | 1050.601.03 | |||
| AF cable | 1050.631.02 | |||
| Data cable | 1050.340.01 | |||
| Data cable | 1050.341.01 | |||
| Power supply cable 3 m | 1050.126.02 | 0067100055749 | 5995160055907 | |
| Grounding | 1050.993.01 | 0064681901249 | 5995160034143 | |
| Grounding | 1050.993.21 | |||
| 2.6 m VHF vehicle antenna | 2036.100.23, 2036.100.24 | |||
| Groundplane antenna | 2036.100.38 | |||
| Discon antenna | 2036.100.68 | 0064681101609 | 5985160039132 | |
| Antenna mast | 2036.100.39 | |||
| RF13.3 | Handset | 2022.100.52 | 0064333000731 | 5965160034142 |
| Handset holder | 2026.700.01 | 0064662900760 | 5965160034225 | |
| Holder | 2315.205.01 | |||
| PK20 | Fill gun set | 2320.000.02 | ||
| Antenna cable (3 m) | 2011.904.01 | 0064301010443 | 5995160034134 | |
| Antenna cable (10 m) | 2011.904.02 | 0064301010924 | 5995160020406 | |
| PC interconnection cable (USB) | 1050.299.01 | 0067100069788 | 5995160058121 | |
| Data cable (RS232C) | 1050.290.01 | |||
| RF cable | 2010.900.01 | 0064301010498 | 5995160024752 | |
| RF cable | 2010.900.02 | 0064301010708 | 5995160034222 | |
| RF cable | 1050.405.02 | |||
| High frequency protection 1 GHz 200 V 400 W | 5605002002 | |||
| CD for modem configuration | 2025.500.51 |
