High-performance modem, with a variety of waveforms to meet your needs
As technology advances and more data is transferred, the quality and capability of modems become increasingly important. Our latest generation Collins Aerospace HSM-2051 high speed modem provides state-of-the-art digital services across HF/VHF/UHF/WBHF channels. Intended for use in both military and commercial applications, the HSM-2051 offers the highest performance currently available with RF channels up to 48kHz.
HF/VHF/UHF modem waveforms
A world class modem, our HSM-2051 supports most major HF standards, with rates up to 9.6 kbps skywave / 16 kbps surface wave in 3kHz (SSB) and 19.2 kbps skywave/32 kbps surface wave in 6 kHz (ISB). In V/UHF, user data rates in a single 40 kHz channel go up to 153.6 kbps (coded) leveraging our proprietary autobaud capable waveforms.
WBHF support
In a WBHF mode, the HSM-2051 supports the MIL-STD-188-110D Appendix D waveform, providing data rates ranging from 75 bps – 16 kbps at 3 kHz through to 1.2 kbps – 240 kbps at 48 kHz.
Get in touch and we’ll help ensure you have access to flexible, high-performance connectivity when you need it, across a variety of applications.
Features & benefits
- MIL-STD-188-110D Appendix D for wideband HF support
- STANAG 4691 Annex B Compliant
- Remote control GUI via Ethernet
- Modem probe mode
- Load/save multiple user configurations
- Synchronous, asynchronous, and Ethernet interfaces
- Remote controllable across any standard IP network
- Comprehensive signal display (including BER and impulse response)
- Internal/external loopback provides install test at unit or system level
- Includes control and data software development kit (SDK) to enable application developers to interface their products to the modem using socket connections
Troubleshoot using modem probe mode
The HSM-2051 includes a modem probe mode in which the signal path is characterized to determine the signal to noise radio (SNR), available bandwidth, radio automatic level control (ALC) and automatic gain control (AGC). What’s more, it can detect distortion from non-linear effects, aiding in installation and troubleshooting.
Channel simulator
Another feature of the HSM-2051 is a two-channel, real-time, ionospheric channel simulator that simulates the effect of an HF/WBHF channel. Enhancing the Watterson HF channel model, our channel simulator provides traditional Additive White Gaussian Noise (AWGN) and CCIR Recommendation 322 noise.