40 metres of Double screened coaxial cable RG-214/U terminated with “N”(m) and "N" (m). All cables are individually checked and calibrated for insertion loss from 1MHz-1GHz. A loss curve accompanies each cable. RG-214 is useable up to 2GHz with caution.Typical insertion losses at these lengths are:- 5dB at 500MHz, 7.5dB at 1GHz & 11dB at 2GHz. They are supplied on drums to prevent kinks on unrolling & rolling up.