Wireless Consultancy & Design

Marconi Instruments 87-92

Designing Telecomms Test Kit at Marconi Instruments in 1990 – note the lack of PCs….
2853S – PDH Telecomms 34Mbps Test set
Marconi 2955R Radio Test set (Fast RF PLL Design for Analog NMT Cellular System)

World-First Digital Terrestrial TV Broadcast ’96

Four Digital Video streams in one UHF TV channel. Four of the ‘fridges’ are the MPEG-2 Encoders and two ‘fridges’ are the Modulators
The first Digital Terrestrial TV (DVB-T) Set Top Box
An obscure and almost unknown receive site for the first Terrestrial TV transmissions helping get the legislation into UK law for the World’s first commercial DVB-T transmissions.

Typical Digital TV National Trial in the late ’90s

Surveying the proposed install site for the first 2.5GHz Digital TV tests in Thailand
View down from the proposed location taken holding onto the column in the previous picture on the unfinished 86th floor…
We decided to use the existing Transmitter antennas and not the unfinished Tower…
We had to add the Digital Test systems into this rack – it was achieved!
Access to the test sites was not always easy. Note our commitment to appropriate business dress…

Satellite Modems in 2000’s

AMT70L High Speed DVB-S2 and VSAT compatible Software Defined Satellite Modem
US DoD DISA Compliant Hi-speed Satellite Modem (Tested via US satellite to >100Mbps)
Typical early Professional DVB-S2 Set Top Box as enabled by the world first DVB-S2 modem technology

World’s first Microwave Adaptive Point-to-Point IP Radio in 2006

DTC / domo / Cobham (CTCS) 2007-2021

We shrank two 5 foot tall 19inch racks of equipment into a Software Defined Radio (SDR) that would fit into the palm of your hand….

Mesh IP Networks
Point to Multipoint IP Networks

And Onwards…..