Accredited persons most often use data from the overnight update service as
the basis for their assignments. In almost all cases this arrangement is
perfectly satisfactory. In bands of particularly high activity, however, such
'non-live' data may lead to two people making conflicting assignments within
the same band and region. Both assignments may be entered into RADCOM and the
problem may not be realised until an interference situation eventuates. The
only way to guarantee that no conflicting assignment has been made is to repeat
the coordination process after a spectrum access appears in RADCOM.
The ACMA believes that the potential for such conflicts is small, and as
re-coordination requires a substantial additional work load, the ACMA is not
prepared to make such a procedure mandatory for either the ACMA assigners or
accredited persons. It is therefore up to each accredited person to decide if
the risk of conflicting assignments being made justifies the resources expended
on repeating the coordination process. Any instances of assignment conflicts
that do occur will be managed on a case by case basis, and would generally be
resolved on a first-in-time basis.
While re-coordination is the only way to guarantee an absence of conflicting
assignments, there are other things accredited persons can do to minimise the
potential for problems. Firstly, the most up-to-date data available should be
used, particularly in bands of high activity. Such data may be obtained either
through the overnight update service or an ASL provided by an area office.
Note, however, that because ASL production works on a distributed model, the
data obtained from an ASL may be no more up-to-date than the overnight update
service (ie it may be up to 24 hours old).
Secondly, the assignment should be provided to the ACMA for entry into
RADCOM as soon as it is completed. An assignment may be 'held' on RADCOM for
ten working days to allow time for the submission of a licence application (see
section below for further information regarding the 'hold' policy for assigned
frequencies). A charge will only be imposed for holding an assignment where an
application is not submitted in the ten working day period.
Important information regarding the 'hold' policy for assigned
The ACMA policy of 'holding' a frequency for up to 10 working days following
the lodgement of a Frequency Assignment Certificate (FAC) form R110 [PDF
is simply intended to assist with frequency coordination. A held frequency is
not protected from subsequent applications on the Application
for apparatus licence(s) (R057) form. Should a validly completed
application be received by the ACMA before the 10 day period has expired, that
application would take precedence over the FAC and the frequency that has been
Applications for apparatus licences are made under section 99 of the
Radiocommunications Act 1992 (the Act), and should be made using
approved form R057.
While the FACs are referred to in section 100(4A) of the Act, they do not
constitute an application under section 99. The FAC is not an approved
application form. Rather, section 100(4A) merely permits the ACMA to take the
FAC into account when deciding whether to issue an apparatus licence.
Experience has proven that the potential for competing assignments is very
low. However, a practical way to secure a particular frequency is to lodge the
R057 application at the same time as the FAC. To assist in this process, the
declaration on form R057 allows an agent, such as an accredited person, to sign
on behalf of the applicant.