OF THE PROTOCOL USED FOR THE MEASUREMENT OF RADIO FREQUENCY
INTERFERENCE AT CANDIDATE SKA SITES
The "RFI Measurement Protocol for Candidate SKA
Sites" is a document compiled by the Working Group on RFI
Measurements of the SKA Site Evaluation and Selection Committee. The
purpose of this document is to establish a methodology for the
measurement and reporting of RFI at candidates sites. The document lays
down the technical specifications, processes and procedures that
need to be followed during the measurement campaign and the
instrumentation to be used.
|The author has
written a number of papers and reports. These
documents remain unpublished. So, use at own risk!!!.
The "opening of the airwaves" and the increase
usage and demand for telecommunications, broadcasting, aircraft DME,
domestic microwaves, and other electrical and electronic
appliances has led to a pollution of the RF environment. We are
constantly bombarded by all this energy. The universe also bombards us
with cosmic energies which sometimes originated some billion
years ago. These signals tell us about the origin of the universe
and what is going -on up there. This knowledge is very important to us.
However, the problem is that these desired signals arrive here at micro
jansky levels whereas the RF pollution is at mega watt levels.
Since the SKA committee plans to invest billions of rands in building a
phenominal radio telescope that will have "eyes and ears" to
pick-up things that happened billions of years ago, it is
important that an excellent site be chosen which is free of
RFI. Otherwise it will defeat the purpose......................... South
Africa is one of a few countries chosen to host the Square Kilometre
Array Telescope. Construction of this telescope will commence in 2015.
In most engineering designs deviation from the
URS is inevitable. This is due to things like "scope creep" and
lack of clarity and understanding of the needs of the customer. Most
URS documents are compiled by non-technical persons and therefore such
errors of omissions are expected. Therefore, to counter-act this, an
intensive study of the SKA Protocol or URS is required.
The SKA is arguably the most imperfect and
incomplete document under the sun. My project is to critique