ISED Basic case studies
ISED Basic · Put your knowledge to work in context.
The ISED Basic credential is an entry-level qualification for people who work with radio apparatus under Canada's radiocommunication regulatory framework, administered through Innovation, Science and Economic Development Canada (ISED). Candidates typically include installers, service technicians, radio dealers, broadcast and two-way radio staff, and compliance or EMC test personnel who need a working command of how spectrum is allocated, how equipment is certified, and how interference is diagnosed and resolved. The ISED Basic case studies are 5 cases and about 3,686 words.
1Licence-exempt 900 MHz link, ERP budgeting and a neighbour's cordless phones
A rural grain co-operative plans a 902–928 MHz frequency-hopping data link to carry scale readings from an elevator to an office 6 km away. The radio is certified licence-exempt equipment rated 1.0 W conducted output.
745 words, about 4 min2Wireless CCTV transmitters degrade a care-home Wi-Fi voice system
A 60-bed seniors' residence runs a 2.4 GHz Wi-Fi network of 12 access points carrying nurse-call tablets and a voice-over-Wi-Fi handset system. Throughput and audio were stable until a contractor installed eight wireless CCTV transmitters (2.4 GHz, 100 mW, eight selectable channels) to link corridor cameras to a recorder.
735 words, about 4 min3Importing 5 GHz outdoor bridges labelled only with an FCC ID
A Canadian online retailer has ordered 350 outdoor 5 GHz point-to-point bridges for sale to rural internet providers. The units arrive marked only with an FCC ID and a CE mark; the packaging shows no Canadian certification number.
734 words, about 4 min4Radiated-emissions measurement at 3 m for a 433.92 MHz transmitter
A technician at a small Canadian test lab is making a 3 m radiated-emissions measurement on a 433.92 MHz remote keyless-entry transmitter. The setup uses a calibrated log-periodic antenna whose antenna factor at 434 MHz is 19.8 dB/m, connected by 4 m of RG-213 with 1.6 dB of loss at that frequency, plus 1.2 dB for connectors and a surge arrestor.
713 words, about 4 min5Servicing a live 50 W VHF repeater within 4 m of the antenna
A technician must replace a corroded connector on a rooftop VHF repeater installation operating near 155 MHz. The transmitter runs 50 W into a 6 dBd collinear on a short mast; the work point is 4 m from the antenna, roughly in the horizontal plane of the radiator.
759 words, about 4 min