Category: Blog

RF Quarterly Update – Feb 2020 – (Updated)

Would you believe it – just after we pressed the ‘go’ button to publish our latest spectrum update blog we received confirmation of H3’s 5G channel deployment (NRARFCN 642000, if you’re interested), so we’ve updated the spectrum guide to include this and some additional information we received in response to the original version of the… Read more »

GPRS Billing Tech Brief

Cell tower

We’ve been spending an awful lot of time recently talking about GPRS and mobile data on our Next Generation Comms Data courses – we’ve also been talking about 4G and 5G networks, 4G Calling and techniques such as SRVCC, which allow 4G calls to continue even if 4G coverage runs out. All this means that… Read more »

Why Cell Site Analysis alone may not be enough at trial without expert assistance

Use of cell site analysis during trials

Cell Site Analysis is a critical piece of evidence in many investigations today. It can reveal attributions, identify with whom a handset was transacting, show locations detailing the area where a handset may have been and provide various correlations between phone evidence and other data sets which may be helpful in timelining events. There are… Read more »

The Investigatory Powers Act and access to comms data

FA Blog 1

The Investigatory Powers Act (IPA) became law in 2016 – many aspects of the new legislation have already been brought into use, but there has been a long lead up to some of its key features being enacted. Part of the motivation for the IPA was based on a recognition that the framework for the… Read more »

UCL MSc Crime & Forensic Science research into Radio Frequency Surveys

UCL Crime Science

Digital forensics is a multifaceted and constantly evolving discipline that benefits from open research and shared knowledge, so we were delighted to be asked to be involved in some ground-breaking research conducted by Abigayil Hopkins-Flanagan as part of her MSc Crime and Forensic Science programme at University College London’s (UCL) Centre for the Forensic Sciences…. Read more »

The race to the cloud – but are all clouds equal?

Race to the cloud

The ‘cloud’ has transformed modern digital services – the ability to access resources that exist ‘out in the Internet somewhere’ without needing to have those services or resources physically located or installed on local devices has freed personal and business users alike from the tyranny of application update cycles and the fear of lost data…. Read more »

5G – Hype or Reality?

5G blog post

The news recently has been full of mentions of the upcoming 5G cellular network upgrades – at least the news articles that I read have been, which may say more about me than it does about the wider population’s interest in 5G – but the fact remains that 5G is just around the corner and… Read more »

The challenge of funding tech for UK law enforcement

Police desk

A 7 November report from the House of Commons Committee of Public Accounts on the financial sustainability of police forces in England and Wales (report pdf) concludes that the government is ‘not showing strategic leadership of the policing system’ and ‘does not have a national picture of demand for police services and so has a… Read more »

When is a lat/long not a lat/long?

Latitude and longitude

We’re all familiar with latitude and longitude coordinates – they’re spat out of satnavs and consumed by Google maps and we’ve come to trust that lat/long coordinates will always accurately pinpoint a location on the Earth; but what if there are circumstances in which lat/longs can’t be entirely trusted? In cell site analysis we use… Read more »

4G Spectrum Refarming

Cell tower

There’s been a flurry of interest in the past couple of weeks in relation to the refarming of old 2G and 3G spectrum to reuse to carry 4G services. Most of this has taken place in the old 3G/UMTS spectrum in the 2100MHz band where, as far as I can see, 3G has almost ceased… Read more »