D.E.M. Allen & Associates Ltd. provides planning, design, supervision and adjustment of broadcast transmitting facilities; including specifications, tender evaluation, and preparation of reports and technical briefs for federal regulatory bodies. The company also offers evaluation and measurements associated with radiofrequency (RF) propagation and electromagnetic energy throughout the radiofrequency spectrum.
Low Frequency Communication Systems
The design, specification and commissioning of complex single and multi-frequency antenna systems and combiners for Low Frequency Communication Systems operating between 100kHz and 523 kHz.
High Frequency Communication Systems
The design, specification and commissioning of complex single and multi-frequency antenna systems and combiners for high frequency communication systems operating between 2 MHz and 30 MHz.
VHF and UHF Radio Communication Links
The design and specification of radio communication links for broadcast and general communications purposes. Point-to-point and mobile systems have been implemented in the 150 MHz, 450 MHz, 950 MHz and 1.7 GHz bands. The company has significant experience in the analysis and implementation of systems with special requirements, over obstructed path and in congested spectrum applications. Systems have been designed and implemented include SCADA, telephone and special remote control and data acquisition networks.
The design and specification of microwave systems across the frequency band from 2 GHz to 23 GHz for point-to-point and broadband point-to- multipoint (MMDS) systems. The company has designed and specified some of Canada's largest privately owned terrestrial microwave systems. The company's engineers are experienced in the use of both space and frequency diversity techniques and use the latest methods available for microwave path evaluation.
Millimeter Wave Systems
The company is in the forefront of proposal and development in the use of 28 GHz (and higher) frequency band for two-way interactive cellular communications system design, testing and implementation.