HRM-7000
| HRM-7000 | |
|---|---|
| Technical specifications | |
| Frequency range | 2-29.999 MHz |
| Frequency steps | 1 kHz |
| Transmitter output power | 30 W PEP |
| Modulation type | C1B send and J2B receive |
| Walking pace | 2000 baud sending, 75 baud receiving |
| Power consumption | Receive 200 mA, transmit 8 A briefly |
| Operating voltage | 13-20 V , nominal voltage 14.4 V. |
| measurements and weight | |
| height | 70 mm |
| width | 365 mm |
| depth | 290 mm |
| Weight | approx. 7 kg |
| Further data | |
| Manufacturer | Telefunken |
| Application area | German Armed Forces (remote scout, KSK) |
HRM-7000 is a modular, tactical HF radio system for the frequency range 2-30 MHz . It was developed by Telefunken RACOMS for the German Armed Forces and is used by them at home and abroad.
history
As early as the 1980s, the German AEG-Telefunken developed a special radio device for stay-behind organizations . The briefcase-sized SY-5000 consisted of a maximum of seven individual units in aluminum housings , which were put together modularly. The receiver can also be operated independently with a nickel-cadmium accumulator with 14.4 volts . The components are protected against vibration, moisture, etc. This system already worked with encrypted data transmission , no longer in Morse code as it used to be. A message with approx. 60 characters was transmitted in less than a second, making it much more difficult for the enemy radio reconnaissance to find the bearings . According to official information, the GLADIO associations were dissolved in 1992. Some of the thus obsolete devices were modified and under the name "FS-5000M" in the remote scouts continue to use the army specifically for training purposes.
As a successor model, the HRM-7000 was developed by Telefunken from 1994. It was introduced from 1997. A common predecessor model of the Bundeswehr was the PRM-4150 from Racal .
Requirements and use
The "HRM 7000 Manpack" was developed by Telefunken RACOMS for mobile applications and is intended to enable secure radio communication under difficult operating conditions. The Bundeswehr uses the system in missions abroad and a. in the KFOR missions . The system is intended to ensure autonomy with a low effective weight. This is intended to ensure secure communication even in the event of remote actions by special units and reaction forces ( special forces command , special forces , rapid reaction forces, etc.).
The system was introduced in the Bundeswehr in 2007. First of all, the remote scouts were procured as radio data transmission in HRS mode (short-term transmission telegram , burst). The functionality was later expanded to include the MAHRS mode without frequency hopping (data and voice radio). In the meantime, the new model variants (models A to G, GefStdAusstg, image transmission, various antennas, etc.) have been introduced.
The Bundeswehr is currently using the HRM-7000 system in parallel to other existing HF radio families. These include the ultra-short wave radio system (VHF) SEM 70 (portable) or SEM 80/90 (SEM 70 in vehicle mount or with power amplifier) and the successor with encryption SEM 93 and the SDR radio MR6000A from Rohde & Schwarz, which is available in all branches of the armed forces .
technology
The HRM-7000 system is a shortwave radio family. The portable version HRM 7000 has an output power of 30 W, which can be sufficient for worldwide data communication. The vehicle version HRM 7400M, on the other hand, has an output power of 400 W thanks to the higher battery availability. The system enables different operating modes. This includes encrypted data and voice radio. A connection can be established conventionally or with Automatic Link Establishment (ALE). The system automatically adjusts the transmission power in a range from 3 W to 30 W. The antenna adapter is available separately for more universal and space-saving use . The transceiver terminal can also be operated remotely. The complete data transfer, operation and programming takes place from PC, laptop, PDA (also wireless) via a standard interface. RACOM has the system according to the MIL-STD-810 certified 95332 E and VG.
Operating modes:
- MAHRS (Multiple Adaptive HF Radio System) digital operating mode developed by Telefunken-Racon
Components
- HRU 7000 transceiver (with integrated radio processor and modem)
- Antenna adapter ATU 7000
- Terminal Crypto Unit TCU 7000 XP
- Battery unit BPU 7000 or accumulator part APU 7002 (service life up to 5 days)
- antenna
Individual evidence
- ↑ Code name "Harpoon" - FS 5000, mobile radio station for stay-behind units. In: Collection. At Deutsches-Spionagemuseum.de, accessed on December 28, 2019.
- ↑ http://www.cryptomuseum.com/radio/hf7000/index.htm
- ↑ http://www.tfk-racoms.com/defense-security/fuehrungsfaehigkeit-kommunikation/produktfamilie-hf/hrm-7000-manpack.html