UHF TV band spectrum and field-strength measurements before and after analogue switch-off

Measurements of UHF-TV band spectra and
field-strength levels in the pre- and post-analogue switch-off
periods in the cities of Thessaloniki and Skopje clearly
demonstrate the much reduced spectrum occupancy, the lower
signal levels, and the feasibility of digital dividend allocations
to cellular operators in the 800 MHz band, as well as the
feasibility of opportunistic secondary spectrum utilization in
extensive parts of the spectrum. The risk of LTE-4G
interference to TV services and vice-versa is also pointed out
and clearly observed from spectrum measurements near a
cellular base station.