R&S®MG3500 500 W HF power amplifier

Supports continuous operation across the 1.5 MHz to 30 MHz band with 500 W transmit power

  • Overview

Key facts

  • Frequency range from 1.5 MHz to 30 MHz
  • Output power 500 W CW and PEP
  • Frequency-hopping capability (R&S®SECOM-H)

Features Collapsed

  • Operating modes
  • Reliability
  • Power supply
  • Environmental and EMC properties

Key facts

The R&S®MG3500 power amplifier increases the HF output power of an R&S®MR300xH/R&S®MR300xU transceiver in the HF range up to max. 500 W. Thus, it makes reliable medium- and long-range connections via groundwave and skywave possible. Typical applications include stationary and semimobile installations for tactical radio networks.

  • Frequency range from 1.5 MHz to 30 MHz
  • Output power 500 W CW and PEP
  • Frequency-hopping capability (R&S®SECOM-H)
  • Mismatch and short-circuit protection
  • High MTBF

features & benefits

Operating modes

The amplifier operates in the entire HF range from 1.5 MHz to 30 MHz. In addition to the analog modes (AM, FM, SSB), frequency-agile radio techniques such as ALE and the R&S®SECOM-H EPM method offered in the R&S®M3TR are also supported.

Broadband antennas (VSWR < 2) can be directly connected to the amplifier. If the R&S®FK4190M antenna tuning unit is added, standard rod, whip or wire antennas can also be used. In this case, the R&S®FK4190 is automatically controlled and tuned by the receiver. Furthermore, hop sets and scan groups for the frequency- agile modes are learned for the connected antenna, and the associated data records are stored in the tuning unit. The tuning processes are largely performed automatically and do not require the operator to take any special steps.

Reliability

The R&S®MG3500 is fully integrated into the built-in test (power-on test and continuous test) of the transceiver. Error messages from the amplifier are output on the transceiver HMI for the operator. To make service easier, error messages down to the module level can be called up.

Power supply

The R&S®MG3500 can operate in either the single-phase or three-phase mode. In addition, emergency operation from a 24 V DC power supply is possible (max. HF output power is then 100 W).

Environmental and EMC properties

Like all system components of the R&S®M3TR family, the R&S®MG3500 has also been subjected to rigorous quality testing. It meets the requirements of the MIL-STD-810F and MIL-STD-461E standards.

Multiband extension

All R&S®MR300xH/U transceivers support multiband operation. The frequency range of an R&S®M3TR HF system equipped with the R&S®MG3500 can also be extended to cover the VHF/UHF range. This is done by connecting the R&S®MG3500 to the extension port of an R&S®VT3050C amplifier. This combination then permits continuous operation at all frequencies between 1.5 MHz and 512 MHz. Moreover, this configuration supports all R&S®M3TR EPM and modem options in the VHF and UHF range.

Design

The R&S®MG3500 HF power amplifier is modular with a 19" rackmount design.

Any R&S®MR300xH/U transceiver can be operated as an exciter for controlling the R&S®MG3500 power amplifier. It can be replaced without requiring tools, or it may be used temporarily as a manpack transceiver. The model for operation in the VHF/UHF range can be connected to the R&S®VT3050C VHF/UHF power amplifier instead of being used as an exciter.

The interfaces on the manpack transceiver (audio, serial data/control, GPS antenna connector, etc.) of course remain accessible even after the transceiver has been installed in the R&S®MG3500.

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