Technological Ambiguities
There are some factors that separate true ALLISS technology from 'run-of-the-mill' rotatable HRS Type antennas
- Thales pseudo-ALLISS rotatable antenna designs were procured from other antenna manufacturers that Thales acquired by corporate transactions.
- Technically only solid radiators distinguish true ALLISS systems from all other rotatable HRS type antennas.
- Only about 12% (estimate) of all HRS antennas in use globally are rotatable, and of these only 28 of the ALLISS systems have solid radiators.
- One must assume that only about 10% of HRS type antennas are rotatable, but compiled statistics are fragmentary. Only about 20% of rotatable HRS antennas are ALLISS, but this may be a slight overestimate.
- The Transmitter Documentation Project has most but not all stats on shortwave relay station antennas in use or historical.
- The Chinese SARFT is said to contain replicated ALLISS module technology, so to consider ALLISS technology as being exclusively in the domain of Thales is no longer true.
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