Accession Number:

ADA333380

Title:

S250C HF/VHF Simulator. User's Manual.

Descriptive Note:

Corporate Author:

SIGNATRON TECHNOLOGY CORP CONCORD MA

Personal Author(s):

Report Date:

1996-05-01

Pagination or Media Count:

95.0

Abstract:

The Signatron Model S250C HFVHF Channel Simulator is the fourth generation of the Signatron HFVHF simulation product line. It provides a means of testing frequency hopping and non-hopping HF and VHF modems and radios. Fully computer controlled, the S250C implements a software-based real-time simulation of an extended Watterson channel model over the entire 2-90 MHz HFVHF band, including both groundwave and skywave components. It also simulates multipath due to terrain and building reflections on VHF links. The S250C provides both baseband and frequency hopping RF interfaces to the equipment under test, thus permitting a modem to be tested as a stand-alone unit, without a terminal, as well as integrated with a terminal. The simulator can be used to test half-duplex modems and radios, with up to six multipath components in each direction. Each path is characterized by a signal amplitude, delay, Doppler spread, Doppler shift and, a Gaussian noise amplitude. In addition, the simulator supports additive impulse noise, jamming, and intermodulation interference effects. In the non-hopping mode, the simulator supports dual diversity frequency channel simulation.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE