The application of High Temperature Superconductors (HTS) has led to the de
velopment of new sub-systems for cellular basestations used in network infr
astructures. They offer performance advantages in terms of sensitivity and
selectivity as well as a reduction in size, which allows them to be install
ed on top of the antenna mast. Results are presented for an HTS-system, whi
ch was designed to interface to GSM-1800 basestations. The measured perform
ance parameters of an HTS subsystem and a conventional system have been imp
lemented into a network-planning tool to assess the advantages in the impro
ved system performance for network operators. Both macro cellular environme
nts, deployed to serve rural areas with a low user density and an urban con
dition, with macro plus microcellular environment with a high subscriber de
nsity have been evaluated. The results show, that the network operator can
choose to employ different advantages, for example a reduction in the numbe
r of basestations in rural areas by 24%, or an increased capacity in urban
areas with a simultaneous reduction of carriers by 30%.