The RT-2200 Receiver-Exciter provides conventional reception and transmission of voice and digital data messages in the 1.6 to 29.99999 MHz frequency range. The RT-2200 provides embedded ALE per MIL-STD-188-141B and built-in high-speed HF data modem per MIL-STD-188-110B. The RT-2200 can be used as a receiver, exciter, or receiver-exciter in single-site or split-site installations.

Optional Features of the RT-2200
• The DSP architecture of the RT-2200 makes it easy to upgrade the unit with enhanced features.
• MIL-STD-188-141C Appendix 3G Automatic Link Establish when the new standard becomes available.
• The built-in HF data modem has an expandable waveform library such as the higher data rate waveforms currently in the MDM-Q9604 Modem.

The RT-2200 uses of a conventional dual-conversion "front end" that translates transmit and receive signals to/from the 0.35-29.99999 MHz band to the 455-kHz intermediate frequency. The digital signal processor, interfacing with the 455-kHz IF, performs all modulation and demodulation functions, including finite impulse response (FIR) filtering for single-channel (SSB, AM, CW) and 2-channel (ISB) operations. The DSP provides the modem waveforms and control interface for single-site or split-site ALE operations. It also operates as a high-performance HF data modem capable of data rates from 75 to 19.2K bits per second using waveforms defined in MIL-STD-188-110B. Appendix C provides for 3200 to 9600 bps and Appendix F provides for ISB operation up to 19.2K bps. Control of the modem functions is through the radio control interface. The audio/interface card provides balanced audio ports for transmit and receive analog voice, the interface for the HF data modem, and the serial control/monitor interfaces. An internal speaker and front panel volume control are provided for monitoring receive audio.

The RT-2200 requires only 133 mm (5.25 inches or three EIA-310 rack units) when mounted in standard EIA 483-mm (19-inch) rack. An internal blower draws air through the front panel filter and exhausts it through the rear panel. The unit may be slide-mounted for ease of access. All cabling to the unit is by quick disconnect connectors that are positively secured to prevent accidental disconnection.

The RT-2200 has three serial interfaces for connection to remote control devices and a front panel interface for an optional control and display panel. To provide redundancy in large systems, each unit may be connected to two or three sources of control information. Selectable unit addresses enable multiple RT-2200s to be controlled by a single control device. The RT-2200 has control interfaces for an associated pre/postselector filter, power amplifiers (400-W to 4-kW), and antenna matching units (line flattener or antenna coupler). A built-in wire-line (FSK) modem supports split-site automatic link establishment operation when used with an external ALE router unit.

The RT-2200 will operate from 115 or 230 VAC, 50/60 Hz or from 28-Vdc providing a high degree of flexibility in prime power selection. The dc port may be used with a battery back-up source in the event of an ac source interruption.

The RT-2200 includes:

• 115 volt AC Power Cable

Product Information Material is normally available at no charge and can be obtained by contacting GS Customer Relations:

Phone: 800-321-2223 or 319-295-5100

Fax: 319-295-4777<response@rockwellcollins.com>