Commonwealth of Australia

Radiocommunications Act 1992

Radiocommunications Spectrum Marketing Plan (500 MHz Band) 1996.

I, CHRISTINE MARY GOODE, Spectrum Manager, prepare on behalf of the Spectrum Management Agency the following Marketing Plan under section 39 of the Radiocommunications Act 1992.

Dated    6 November 1996.

CHRISTINE M. GOODE

Spectrum Manager

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CONTENTS

Clause

1.   Title

2   Commencement

3.   Purpose

4.   Interpretation

5.   Group of receivers

6.   Issue of spectrum licences

7.   Identification of lots

8.   Allocation of lots

9.   How licences will be allocated

10.   Lot ratings

11.   Advertising auction

12.   Registration

13.   Amount of eligiblity payment

14.   Entitlement to licence

15.   Sample licence

16.   Core licence conditions

17   Other licence conditions

18.   Determination of core licence conditions

19.   Emission limits

20.   Level of protection

21.   Guidelines

22.   Duration of licences

23.   Registration of licences

24.   Trading in licences

25.   Licences that are about to expire

26.   Re-issue of licences

27.   Variation of this Plan

Schedules

Schedule 1  Device boundary of a receiver and LOP-Criterion (500

   MHz)

Schedule 2  Effective antenna height

Schedule 3  Table of lots

Schedule 4  Description of lot areas

Schedule 5  Band segments

Schedule 6  Sample licence

Schedule 7  Emission limits outside the area

Schedule 8  Emission limits outside the band

Schedule 9  Centre location and effective radius of a receiver

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Title

 1.  This Plan is called the Radiocommunications Spectrum Marketing Plan (500 MHz Band) 1996.

Commencement

 2.  This Plan commences on 6 November 1996.

Purpose

 3. (1) This Plan sets out procedures and a timetable for issuing spectrum licences that authorise use of the radiofrequency spectrum in those parts of the 500MHz band designated by the Minister under section 36 of the Act that are described in Schedule 3 and are:

(a) unencumbered; or

(b) the subject of an apparatus licence whose holder has not accepted the SMA’s offer to convert that apparatus licence to a spectrum licence.

[NOTES:   1.  This Plan does not deal with any frequencies in Central Australia.  

     2.  This Plan does not deal with certain frequencies in Cairns or Townsville.  These frequencie are shown as struck through in Schedule 3 - see subclause 6(2).

     3.  Certain lots in Sydney and Newcastle will be allocated under the Radiocommunications Spectrum Conversion Plan (500MHz Band) 1996 to certain existing apparatus licensees - see subclause 6(2).  These lots are shown as struck through in Schedule 3.

     4.  Conversion of apparatus licences to spectrum licences is dealt with in ss.52-59 of the Act and in the Radiocommunications Spectrum Conversion Plan (500 MHz Band) 1996.  Copies of the Plan and the designation instrument are available from the SMA.]

 (2) This Plan also sets out matters a licensee will need to take into account in operating devices under a licence.

Interpretation

 4.(1)  In this Plan, unless the contrary intention appears:

Act means the Radiocommunications Act 1992.

allocation determination means the determination under section 60 of the Act about the allocation of spectrum licences in the 500 MHz Band.

cell means a square with a side measured in degrees by reference to the Australian National Spheroid.

device boundary, in relation to a receiver or a group of receivers, means the device boundary established in accordance with Part 1 of Schedule 1.

effective antenna height means the effective height of an antenna, calculated in accordance with Schedule 2.

effective occupied bandwidth, in relation to a transmitter, means the minimum width of a frequency band having fixed upper and lower limits that is necessary to contain 99% of the true mean power of the transmitter’s emission at any time.

emission centre frequency, in relation to a transmitter, means the frequency midway between the lower and upper frequency limits of the transmitter’s effective occupied bandwidth.

emission limits outside the area  means the maximum permitted level of radio emission, outside the geographic area of a licence, that may be caused by the operation of a radiocommunications device under the licence.

emission limits outside the band means the maximum permitted level of radio emission, outside the frequency band of a licence, that may be caused by the operation of a radiocommunications device under the licence.

fixed receiver means a radiocommunications receiver located at a fixed point on land or sea and not established for use while in motion.

geographic area, in relation to a licence, means the area within which operation of a radiocommunications device is authorised under the licence.

group of receivers has the meaning given by clause 5.

horizontally radiated power,  in relation to a radiocommunications device, means the radiated maximum true mean power within the frequency band of the licence, summed over all polarizations and measured in units of dBm EIRP, in a direction referenced from, and in the horizontal plane containing, the phase centre of the antenna used with the radiocommunications device.

in-band, in relation to a transmitter operated under a licence, means the frequencies within the frequency band of the spectrum to which the licence relates.

level of protection, in relation to a receiver operated under a licence, means the level of protection that:

(a) causes the device boundary of the receiver to be as near as possible to the boundary of the geographic area of the licence while remaining within that geographic area; and

(b) is never less than -139 dBm per 12.5 kHz.

 licence means a spectrum licence.

LOP criterion (500 MHz)  has the meaning given by Part 2 of Schedule 1.

lot means a lot listed in column 1 of Schedule 3 that:

(a) covers that part of the spectrum identified by the band number in column 3 opposite the number of the lot; and

(b) consists of the area identified by the area number in column 2 opposite the number of the lot; and

(c) has the lot rating shown in column 5 opposite the number of the lot.

lot rating means:

(a) the lot rating fixed by the SMA as the product of the population of the lot and the frequency band in MHz of the lot, divided by 100; and

(b) in relation to a particular lot, means the lot rating shown in column 5 of Schedule 3 opposite the number of that lot.

maximum true mean power  means the true mean power measured in a 12.5 kHz rectangular bandwidth that is located within a specified frequency band such that the true mean power is the maximum of true mean powers produced.

[NOTE:  The power within a 12.5 kHz rectangular bandwidth is normally established by taking measurements using either an adjacent channel power meter incorporating, for example, a standard 8.5 kHz filter as specified in AS4295/95 or a spectrum analayser with, for example, a 300 Hz resolution bandwidth. Measuring equipment accuracy, measurement procedure and any corrections to measurements necessary to take account of practical filter shape factors would normally be made in accordance with good engineering practice.]

mean power means the average mean power measured during an interval of time that is at least ten times the period of the lowest modulation frequency.

mobile receiver  means a radiocommunications receiver established for use while in motion or during halts at unspecified points on land or sea.

peak power  means the average power during one radio frequency cycle at the crest of the signal envelope measured in a 12.5 kHz rectangular bandwidth that is located within a specified frequency band.

population, in relation to a lot, means the notional population of the lot, fixed by the SMA and set out in column 4 of Schedule 3 opposite the number of the lot.

roads mobile list means the list giving the names of major roads, latitude and longitude of the centre location, the effective radius and 2 sets of co-ordinates from which sections of the roads may be identified, published by the SMA, copies of which are available from the SMA.

spectrum map grid  means the map grid developed by the SMA for Australia, showing cells the sides of which measure 3 degrees of arc, 1 degree of arc or 5 minutes of arc, published by the SMA, copies of which are available from the SMA.

spurious radio emission means any emission on a frequency whose level may be reduced without affecting the corresponding transmission of information:

(a) including harmonic, parasitic, intermodulation, frequency conversion products and products from instabilities introduced by the modulation process; and

(b) excluding products that are a necessary result of the modulation process and switching transients.

standard trading unit (STU) means a parcel of spectrum space that consists of:

(a) a frequency band having lower and upper frequency limits defined by:

 (i)  500.99375 + n x .0125 and (n+1) x .0125 respectively; or

 (ii) 510.99375 + n x .0125 and (n+1) x .0125 respectively;

 where n is any integer from 0 to 319 (inclusive); and

(b)  a geographic area equal to a cell of the spectrum map grid.

towns mobile list means the list giving the names of towns, latitude and longitude of the centre location and the effective radius for each town, published by the SMA, copies of which are available from the SMA.

true mean power means:

(a) if an unmodulated carrier is present - the mean power measured while the unmodulated carrier is present; and

(b) if an unmodulated carrier is not present - the mean power measured while transmitted information is present.

unencumbered, in relation to the spectrum, means a part of the spectrum in which apparatus licences have not been issued.

500 MHz band means the following frequency bands:   

(a) 500.99375 MHz - 504.99375 MHz (the 500 MHz Lower band);

(b) 510.99375 MHz - 514.99375 MHz (the 500 MHz Upper band).

[NOTES: 1.  The following terms, used in this Plan, are defined in the Radiocommunications Act 1992 and have the meanings given to them by that Act:

 (2)  In this Plan, the range of numbers that identifies a frequency band includes the higher, but not the lower, number.

Group of receivers

 5. (1) For the purpose of this determination, two or more receivers are a group of receivers if:

(a) they have:

 (i) the same intended polarisation for their antennas; and

 (ii) for the intended polarisation of their antennas - the same forward gain, 3 dB beamwidth and front to back ratio; and

(b) they are operated for the purpose of receiving information from the same transmitter.

 (2)  A receiver may belong to more than one group.

Issue of spectrum licences

 6.  (1)  The SMA will issue spectrum licences, in accordance with this Plan, for those parts of the spectrum in the 500 MHz Band designated by the Minister under section 36 of the Act that are described in Schedule 3 and are:

(a) unencumbered; or

(b) used by a licensee of an apparatus licence who has not accepted the SMA’s offer to convert the apparatus licence to a spectrum licence.

[NOTES:  1. Under s.58 of the Act, the apparatus licence will cease to be in force once the spectrum licence is issued.

    2.  Conversion of apparatus licences to spectrum licences is dealt with in ss.52-59 of the Act and in the Radiocommunications Spectrum Conversion Plan (500MHz Band) 1996.  Copies of the Plan are available from the SMA.]

 (2)  In spite of subclause (1):

(a) the SMA will not issue spectrum licences under this Plan for the lots in Cairns and Townsville that are shown as struck through in Schedule 3; and

(b) the SMA will issue spectrum licences under the Radiocommunications Spectrum Conversion Plan (500MHz Band) 1996 for the lots in Sydney and Newcastle that are shown as struck through in Schedule 3.

 (3)  The SMA does not propose to reserve any spectrum in the 500MHz Band for public or community services.

Identification of lots

 7.  (1)  The SMA has divided the parts of the spectrum that have been designated by the Minister into lots.  The lots for which the SMA will issue spectrum licences under this Plan are set out in Schedule 3.

[NOTE:  The SMA will not issue licences under this Plan for lots that are shown as struck through - see subclause 6(2).]

 (2)  Each lot covers a geographic area.  A description of the area of each lot is set out in Schedule 4.

[NOTE:  Maps showing the area of each lot are available from thte SMA.]

 (3)  Each lot also covers a particular frequency band.  The frequency bands are set out in Schedule 5.

Allocation of lots

 8.  These lots will be allocated and will then become the subject of spectrum licences.  Under Part 3.2 of the Act, the SMA will issue spectrum licences to cover the lots that have been allocated in accordance with this Plan.

How licences will be allocated

 9.  (1)  The first allocation will be by way of a simultaneous ascending bid multiple round auction, in accordance with the procedures set out in the Radiocommunications (Spectrum Licence Allocation - 500 MHz Band) Determination 1996 made under s.60 of the Act, copies of which are available from the SMA.

[NOTE: The determination sets out the procedures for allocating spectrum licences by a simultaneous ascending bid multiple round auction.]

 (2)  All the lots listed in the Schedule will be available for auction at the same time.

 (3)  The SMA may hold further allocations by a means to be determined by the SMA under section 60 of the Act.

 (4)  In spite of subclause (1), the SMA will not hold an auction if:

(a) for each area available for allocation, the total amount of bandwidth nominated for the area, in accordance with the allocation determination, by all applicants for the area is equal to or less than the bandwidth available for that area; and

(b) the SMA offers each applicant a licence for a bandwidth, in the area nominated by the applicant, at the starting bid price; and

(b) each applicant accepts the licence offered.

[Note: In this case, the SMA will allocate the licences for a pre-determined price - see Part 3 of the Radiocommunications (Spectrum Licence Allocation - 500 MHz Band) Determination 1996.]

Lot ratings

 10.  Each lot has a lot rating, as set out in Schedule 3.  The lot rating is used as the basis of working out the eligiblity payment payable by an applicant, and the applicant’s eligibility.  Details of these are in clauses 2.5 and 2.6 of the allocation determination.

Advertising auction

 11.  The SMA will advertise details of the auction as soon as practicable after the day this Plan is published, and at least one month before the proposed auction date.  The advertisement will:

(a) describe the part of the spectrum to be auctioned; and

(b) include a summary of the auction process. 

Details of the advertisement are in clause 2.1 of the allocation determination.

Registration

 12.  (1)  The advertisement will invite people to apply to register to take part in the auction.  The SMA will send interested people an Applicant Information Package that contains more detail about registration requirements and the auction process. Details of what is in the Package are in clause 2.2 of the allocation determination.

 (2)  People wishing to take part in the auction must register by the closing date in the advertisement.  An application must have with it an eligiblity payment and an entry fee. Details of how to apply are in clauses 2.3 and 2.4 of the allocation determination.

Amount of eligiblity payment

 13.  Each person who applies to be registered must pay an eligiblity payment.  The amount of eligiblity payment payable by a person is based on the lot rating and is worked out in accordance with clause 2.6 of the allocation determination.

Entitlement to licence

 14.   A successful applicant in relation to a lot is entitled to be issued a licence that includes that lot as soon as practicable after the final bid price is received by the SMA.  Details of payment requirements are in Part 5 of the allocation determination.

Sample licence

 15.  A sample licence is set out in Schedule 6.

Core licence conditions

 16.  Section 66 of the Act requires a licence to contain core conditions that define the parts of the spectrum that can be used under the licence, in terms of:

(a) frequency band; and

(b) geographic area; and

(c) emission limits outside the area; and

(d) emission limits outside the band.

These conditions will be included in the licence.

Other licence conditions

 17.  The licence will also include conditions about:

(a) payment of charges (section 67 of the Act); and

(b) use by third parties (section 68); and

(c) registration of transmitters (section 69); and

(d) other matters that the SMA may include in the licence (section 71).

Determination of core licence conditions

 18. (1) The core conditions for the geographic area of a licence will be based on the area or the aggregation of areas described in Schedule 4  that cover the lots allocated to the licensee in the allocation under section 60 of the Act.

 (2) The core conditions for frequency bands will be based on the band or bands described in Schedule 5 that cover the lots allocated to the licensee.

Emission limits

 19. (1) The emission limits outside the area for all licences are worked out in accordance with Schedule 7.

 (2)  The emission limits outside the band for all licences are worked out in accordance with Schedule 8.

[NOTE:  These core conditions may be varied with the licensee’s agreement - see s.72 of the Act.]

Level of Protection

 20. (1) The level of in-band emission from a transmitter operating under a licence, measured at a fixed receiver operating otherwise than under that licence, must be, for not more than 99% of the time in any one hour period, not greater than the level of protection for that receiver plus 20dB.

[NOTES: 1. The level of protection may be taken into account during interference settlement.

   2.  The level of protection relates to interference caused by in-band emissions from geographically adjacent spectrum licensees and does not relate to interference caused by, for example, intermodulation or services operated under apparatus licences.

   3.  The level of protection is applied only within an equivalent intermediate frequency bandwidth of the receiver that is based on the effective occupied bandwidth of the transmitter that communicates with the receiver.

   4.  The same level of protection is provided to a receiver regardless of  the gain of the antenna used with the receiver or the bearing of the interfering transmitter.]

 (2) The level of emission at the fixed receiver is the level of radio emission received by a notional antenna located as if its phase centre is located at the phase centre of the antenna used with the receiver and measured:

(a)  as mean power in units of dBm at the terminals of the notional antenna; and

(b)  in relation to 12.5 kHz rectangular bandwidths within the frequency band:

 (i)   whose upper limit is equal to the emission centre frequency plus half

  the effective occupied bandwidth of a transmitter that communicates               with the receiver; and

 (ii)  whose lower limit is equal to the emission centre frequency minus half               the effective occupied bandwidth of a transmitter that communicates               with the receiver.

 (3)  In subclause (2), notional antenna means an antenna with a gain of 0 dBi in any direction.

 (4) The level of protection for each of the following receivers is never less than -77 dBm per 12.5 kHz:

 (a) a fixed receiver whose operation is authorised under a licence issued for the 500 MHz Lower band when its effective antenna height for segment “m”=1 is greater than 10 metres; or

(b) a fixed receiver whose operation is authorised under a licence issued for the 500 MHz Upper band when its effective antenna height for segment “m”=1 is less than 20 metres; or

(c) a mobile receiver.

 (5)  When it is not possible to establish whether a measured level of emission at a fixed receiver meets the requirements of subclause (1) because emission levels cannot be measured in accordance with subclause (2) with equipment of reasonable accuracy and reliability (for example, because of internally generated spurious signals or overload problems in the measuring equipment caused by other transmitters), the SMA will:

(a)  estimate the level of emission from the transmitter, having regard to the measurements taken and the circumstances in which the measurements were taken; and

(b)  discuss the estimated level with the relevant licensees; and

(c)  take whatever action is necessary to resolve any interference that the SMA considers to be the result of the level of transmission.  This action may include variation of licence conditions, for example to reduce the level of emission at the receiver.

[NOTES:  1. Measurement of levels of emission at receivers having the benchmark level of protection (down to -119 dBm/12.5 kHz) is often unreliable.   In some cases, the interference mechanism is determined by a process of applying remedies to suspected causes rather than by direct measurement. 

   2. When emission levels can not be reliably measured, interference settlement may be effected by providing an acceptable protection ratio between the wanted and unwanted signals, taking account of necessary fading and operating conditions. 

   3. Operating problems in the absence of a wanted signal, that can be removed by fitting systems such as CTCSS, would not normally be considered to be interference.]

Guidelines

 21.  The guidelines made by the SMA under section 262 of the Act about co-ordinating the operation of transmitters may be taken into account in settling interference disputes under Part 4.3 of the Act.

[NOTES: 1.   Paragraph 262(2)(d) of the Act authorises the making of guidelines about frequency co-ordination.  Copies of the guidelines are available from the SMA.

   2.  The SMA does not intend to afford protection to receivers operating under spectrum licences from any interference they may incur from transmitters in Telstra’s Radio Concentrator System that are operated in accordance with their apparatus licence.  The SMA intends to afford protection, in accordance with the guidelines, to RCS receivers from transmitters operated under spectrum licences.  Each case will be assessed on its merits.]

Duration of licences

 22.  (1)  The licences issued under this Plan:

(a) will be for fixed terms as close as possible to, but not exceeding, 10 years; and 

(b) will have a common expiry date.

[NOTE: Section 65 of the Act provides that the maximum duration of a spectrum licence is 10 years.]

 (2)  The expiry date will be the same as the expiry date of licences in the 500 MHz band issued to replace existing apparatus licences.

[NOTE: Conversion of apparatus licences to spectrum licences is dealt with in ss.52-59 of the Act and in the Radiocommunications Spectrum Conversion Plan (500MHz Band) 1996.  Copies of the Conversion Plan are available from the SMA.]

Registration of licences

 23.  (1)  The SMA will register licences, as required by section 144 of the Act. 

[NOTE:  Details about registration are in the Radiocommunications (Register of Radiocommunications Licences) Determination 1996, copies of which are available from the SMA.]

 (2)  Transmitters that are part of a group of transmitters may be registered individually or as a group.

 (3)  The SMA does not propose to register mobile transmitters that operate:

(a) outside the limits of a town on the towns mobile list; or

(b) on a road that is not on the roads mobile list; or

(c) at sea and only communicate with a mobile receiver at sea.

Trading in licences

 24.  (1)  As permitted by Division 5 of Part 3.2 of the Act, a licensee may assign or otherwise deal with the whole or any part of his or her licence.  The SMA will determine rules under section 88 of the Act governing trading in licences.  The rules will not allow trading other than in whole standard trading units.

Licences that are about to expire

 25.  (1)  As required by section 78 of the Act, the SMA will publish notices periodically in the Gazette:

(a)  stating where information can be obtained about licences that are due to expire within the next 2 years; and

(b) inviting expressions of interest from people who want to have these licences issued to them.

This information will also be available through area offices of the SMA. 

 (2)  The SMA will also send licensees regular reminders during the last 2 years of their licences that the licences are due to expire.

Re-issue of licences

 26. (1)  The SMA will re-issue licences, as required by sections 78-84 of the Act.

 (2)  As a general rule, licences will only be re-issued after the lots they cover are offered for re-allocation by auction, tender, or predetermined or negotiated price.  In re-allocating the licences, the SMA will follow the procedures set out in the determinations as in force at the time under section 60 of the Act.

   (3)  However, as set out in section 82 of the Act, the SMA may re-issue a licence to the previous licensee without re-allocating the licence if it is in the public interest to do so. Licensees should not assume that they will be reallocated their existing licence.

Variation of this Plan

 27.  The SMA may vary this Plan at any time, as provided in section 42 of the Act.  For example, the variations may deal with changes in how parts of the spectrum are to be apportioned between licences.

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SCHEDULES

SCHEDULE 1

Clause 4(1)

PART 1

Device boundary of a fixed receiver or a group of fixed receivers

 1.  The device boundary of a fixed receiver or a group of fixed receivers is established as follows:

Step 1:    Calculate the LOP-Criterion (500 MHz) for each increment (m5) minutes in distance by reference to the Australian National Spheroid, where m is any integer beginning 1 to 30, along each of 36 radials.  All increments m=1, begin at the common central point of the radials.  The common central point is the centre location of the receiver.  The 36 radials have bearings taken clockwise and given by the sequence 0, 1, 2,... 33, 34, 35  (n) according to the sequence rule n = n10 degrees referenced to true north.

[NOTE:  In the expression “m5”, and similar expressions, the symbol  “ · ” represents the operation of multiplication.]

Step 2:    Calculate an end point for each radial as the point corresponding to the sum of:

(a) the distance in kilometres along the radial equal to the length corresponding to the number of 5 minute increments from the centre location of the receiver that corresponds to the calculated value of the LOP-Criterion (500 MHz) being zero or negative when either all the previous values calculated for that radial are positive, or the number of the increment is equal to 1; and

(b) the effective radius of the centre location, calculated in accordance with Schedule 9.

[Notes: 1.  The value of m for each increment is the same as the value of m for the segment referred to in paragraph 2(c) of Schedule 2.

 2.  The actual distance in kilometres for a 5 minute increment in distance varies according to the direction and location of the radial by reference to the Australian National Spheroid.  Distances measured in minutes are accepted usage in mapping.]

Step 3:    Identify the location of each end point by reference to the spectrum map grid.

Step 4:    Connect the end point of each radial consecutively to draw a polygon in relation to the spectrum map grid cells.

Step 5:    Aggregate the spectrum map grid cells that either fall within or are intersected by the polygon.  The boundary of this aggregated area is the device boundary of the receiver.

 2.  If there is more than one centre location for a group of fixed receivers, a device boundary is to be calculated for each centre location.

________________________________

SCHEDULE 1 - continued

PART 2

LOP-Criterion (500 MHz)

If:

(a) LOP is the level of protection of a fixed receiver; and

(b) hem(n) is the effective antenna height of the receiver (referred to in this Schedule as “he”) and measured in metres for segment m (m being any integer from 1 to 30) for each bearing n; and

(c) dm(n) is the distance m5 minutes with reference to the Australian National Spheroid (referred to in this Schedule as “he”) and calculated for segment m and measured in kilometres for each bearing n  ; and

(d) if he    1.5  then he  =  1.5, and if he    1600 then he  =  1600;

then:

(f) if the receiver is authorised to operate under a licence issued for frequency bands in the 500 MHz Lower Band, the LOP-Criterion (500 MHz) is either:

 (i) the value, rounded to one decimal place, of the mathematical expression: 

 LOP - 3.2  (log10(11.8  he))2 + 30  log10(d) + 93:

 when:

     0.1 km <    d         ≤ 10 km;   and

  1.5 m  ≤     he       ≤ 10 m; or

 (ii) the value, rounded to one decimal place, of the mathematical expression: 

  LOP  - 3.2(log10(11.8he)) 2  + 60log10(d) + 59:

 when:

  10 km <      d ; and

  1.5 m  ≤      he       ≤ 10 m; or

(g) if the receiver is authorised to operate under a licence issued for frequency bands in the 500 MHz Upper Band, the LOP-Criterion (500 MHz) is either:

 (i) the value, rounded to one decimal place, of the mathematical expression: 

 LOP  - (1.6 he)1/2  +  30log10(d)  + 90:

 when:

     0.1 km <     d        ≤ 10 km; and

  20 m   ≤     he       ≤ 1600 m; or

 (ii) the value, rounded to one decimal place, of the mathematical expression: 

  LOP   - (1.6 he) 1/2  +  60log10(d)  + 55:

 when:

  10 km <      d ; and

  20 m   ≤     he        ≤ 1600 m.

_________________________

SCHEDULE 2

Clause 4(1)

Effective Antenna Height

1.  The effective height of an antenna is determined in accordance with its receiver, as set out in this Schedule.

[Note: To simplify the calculation of mean ground height by persons accredited under s.263 of the Act to issue interference certificates under s.145(3) of the Act, the SMA provides lists of the average of the elevation attributes for the RadDEM cells within 5 minute segments of 2.5 degree sectors for any location in Australia.]

2.  Effective Antenna Height of a Fixed Receiver (see Diagram 1 below)

If:

(a) hg is the vertical height in metres of the phase centre of the fixed receiver’s antenna measured relative to the point:

(i) located on the line of intersection between the external surface of the structure supporting the antenna and the surface of the ground or sea; and

(ii) having the lowest elevation on that line; and

(b)  hs is the sum of:

(i) the elevation attribute of the RadDEM cell containing the location of the phase centre of a fixed receivers antenna; and

(ii) hg; and

(c) hagm(n)  is average ground height, as described below, for each of the segments ‘m’ of a sector of 10 degrees arc centred along each of the bearings n, calculated by taking the average of the elevation attributes for all of the cells that have either half or more than half their area within each segment ‘m’; and

(d)  each sector is divided into 30 segments “m” (as illustrated in Diagram 2 below) with:

(i) any two consecutively numbered segments 1 to 30 being contiguous; and

(ii) each segment being a 5 minute increment in radial distance; and

(iii) segment 1 beginning at the centre location;

then:

(e) for fixed receivers operating in the 500 MHz Lower Band the effective antenna height:

 (i) for segment “m” = 1, he1(n), is hg for that centre location except when

 (hs - hg -  hag1(n)) is > 48 in which case he1(n) is (hs - hag1(n)) for that centre location; and

 (ii) for segments “m” = 2 to 30, hem(n), is (hs - hagm(n)) for that centre location except when (hs - hagm(n)) is  10 in which case hem(n) is 10 for that centre location; and

(f) for fixed receivers operating in the 500 MHz Upper Band the effective antenna height:

 (i) for segment “m” =1, he1(n), is hg for that centre location except when

 (hs - hg -hag1(n)) is > 0 in which case he1(n) is (hs - hag1(n)) for that centre location; and

SCHEDULE 2 - continued

 (ii) for segments “m” = 2 to 30, hem(n), is (hs - hagm(n)) for that centre location except when (hs - hagm(n)) is  20 in which case hem(n) is 20 for that centre location.

 [Note: A RadDEM cell is represented as raster data such that the western and southerly boundary of the cell is part of the cell but the northerly and easterly boundary are parts of the adjacent cells.  This is an important consideration when a location falls on a cell boundary.]

Diagram 1

  hg :   antenna height above ground

  hs :   antenna height above sea level

  hagm  (n  ) :  average ground height above sea level in                                              segment ‘m’ of sector ‘n’

  hem (n  ) :  effective antenna height for segment ‘m’ of sector ‘n’

  (note: for this case hs - hg - hag1  (n  ) > 0 )

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Diagram 2

Segments and sectors

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SCHEDULE 2 – continued

3.  Effective antenna height of a group of fixed receivers

For a group of fixed receivers, where hgmax is less than 10 metres, then:

 (a) the group of receivers is to be treated as if it is a single fixed receiver; and

 (b) the effective antenna height of the group hem(n), is hgmax for any segment “m”=1 to 30, and any bearing (n), where hgmax is greater than any hg established for each receiver in the group calculated in accordance with clause 2(a).

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SCHEDULE 3

Clause 7

Table of lots

In this Schedule:

(a) the area number shown in column 2 for a lot refers to the geographic area of that lot identified by that number in Schedule 2; and

(b) the band number shown in column 3 for a lot refers to the frequency band of that lot identified by that number in Schedule 3; and

[NOTE:  Lots shown as struck through are not dealt with in this Plan - see Clauses 3 and 6.]

CAIRNS    SCHEDULE 3

TOWNSVILLE   SCHEDULE 3

MACKAY    SCHEDULE 3

MARYBOROUGH   SCHEDULE 3

BRISBANE    SCHEDULE 3

NORTHERN RIVERS   SCHEDULE 3

NEWCASTLE   SCHEDULE 3