RSS-170 [Satellite Mobile Earth Stations]

8/6/2019 RSS-170 [Satellite Mobile Earth Stations]

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RSS-170Issue 1, Rev. 1

November 6, 1999

Spectrum Management and Telecommunications Policy

Radio Standards Specification

Satellite Mobile Earth Stations

Aussi disponible en franais - CNR-170


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Preface

This Radio Standards Specification sets out standards for Satellite Mobile Earth Station (MES) Terminals. It

also replaces the following documents:

(a) GL-22 (Issue 3): Certification of Mobile Satellite Earth Station Terminals (that employ digital

modulation, in the band 1626.5 - 1660.5 MHz , uplink).

(b) GL-46 (Issue 1): Certification of Mobile Earth Station Terminals (137-138 MHz and 148-149.9 MHz)

Issue 1, Revision 1 (November 6, 1999):

1. Section 9 on Receiver Spurious Emissions has been amended as follows (deleted text shown by strike-

over and the added text in double-underline) :

If the receiver incorporates a scanning mode of operation that can scan frequencies outside its authorized

band of operation, refer to document RSS-135,Digital Scanner Receivers, or RSS-215,Analogue

Scanner Receivers, since there are certain restrictions on their certification.


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ii

Contents

1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.0 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.1 Quality Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.2 Inquiries about this Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

3.0 Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

4.0 Test Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

5.0 Equipment Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.1 Equipment Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

5.2 Transmitter External Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

5.3 Supply Voltage and Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

5.4 Definition of Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

5.5 Frequency Plan, Channel Spacing, Transmit Power, etc. . . . . . . . . . . . . . . . . . . . 55.6 New Technologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

6.0 Transmitter Standards and Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66.1 Testing Methods: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6.2 Output Power Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

6.3 Unwanted Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

7.0 Frequency Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

8.0 Exposure of Humans to Radio Frequency Fields . . . . . . . . . . . . . . . . . . . . . . 9

9.0 Receiver Spurious Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

10.0 Signalling and Access Compatibility Tests . . . . . . . . . . . . . . . . . . . . . . . . . . 11

11.0 Licensing Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

12.0 Equipment Certification and Test Report Submission . . . . . . . . . . . . . . . . 11

Annex A - 137-138/148-150.05 MHz Mobile Earth Station Requirements . . . . . . . . . . . . . . . 13

Annex B - 1626.5-1660.5 MHz Mobile Earth Station Requirements . . . . . . . . . . . . . . . . . . . . 16

Annex C - 1610-1626.5 MHz Mobile Earth Station Requirements . . . . . . . . . . . . . . . . . . . . . 18


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Satellite Mobile Earth Stations RSS-170

1

1.0 Scope

1.1 This document sets out standards for transmitters and receivers for mobile earth stations

(MES) (including hand-held units) used for satellite communication, for the frequency

bands listed in Table 1.

1.2 The equipment is subject to licensing, pursuant to subsection 4(1) of the

Radiocommunication Act.

1.3 Subject to section 1.4, a technical acceptance certificate (TAC) is required, pursuant to

subsection 4(2) of theRadiocommunication Actand theRadiocommunication Regulations.

Before certification is granted, the applicant shall show that the applicable standards have

been complied with.

1.4 This standard does not apply to Global Mobile Personal Communications by Satellite

(GMPCS) stations that are brought into Canada temporarily by visitors to Canada if:

they have been type approved and licensed by Administration(s) who are Signatories to

the GMPCS-MOU (Memorandum of Understanding to Facilitate Arrangements for

GMPCS, 14 February 1997); and

they are suitably labelled with the GMPCS-MOU Mark; and

Canada has notified the Secretary General of the International Telecommunication

Union that Canada has implemented the GMPCS-MOU arrangements for the satellite

system associated with such GMPCS stations.

1.5 It should be noted that the manufacture, importation, distribution, lease, offering for sale,

and sale of GMPCS stations within Canada is nevertheless not permitted without a TAC.

2.0 General

2.1 Quality Control

Periodic testing shall be carried out by the manufacturer or importer to ensure continuing

compliance (with standards) of the newly manufactured/imported units intended for sale in

Canada. Non-compliance problems shall be corrected by the manufacturer or importer.Industry Canada (the department) will conduct audit checks from time to time to ensure

compliance.


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2.2 Inquiries about this Standard

Inquiries about this Standard may be directed to Industry Canada's local office or to:

Manager, Radio Equipment Standards

Industry Canada

300 Slater StreetOttawa, Ontario

Canada

K1A 0C8

Tel: (613) 990-4699/fax: (613) 990-3158

Internet: [email protected]

However, inquiries concerning equipment certification matters should be directed to

Manager, Certification, Engineering and Operations Section; see address in section 12.

3.0 Related DocumentsThe following are related documents. Radio Standards Procedure 100 (RSP-100) and

Telecommunications Regulation Circular 49 (TRC-49) provide guidance when applying for

equipment certification.

RSP-100: "Radio Equipment Certification Procedure"

TRC-49: "Certification Service Fees"

RSS-212: "Test Facilities and Test Methods for Radio Equipment"

The above documents are available in English and French on the Internet at:

http://strategis.ic.gc.ca/spectrum (English)

http://strategis.ic.gc.ca/spectre (French)

For assistance regarding this web site, please contact: DOSP-P, 300 Slater Street, Ottawa,

Ontario, K1A 0C8, telephone: 613-990-4761/fax: 613-990-3341,

e-mail: [email protected].

Hard copy of the documents are available, for a fee, from:

Tyrell Press Ltd.2714 Fenton Road

Gloucester, Ontario

K1T 3T7

Canada toll-free no.: 1-800-267-4862

U.S. toll-free no. : 1-800-574-0137

Worldwide tel. no. : (613) 822-0740

Fax number : (613) 822-1089


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Canada Communication Group Inc.

45 Sacr-Coeur Blvd.

Hull, Quebec

K1A 0S9

Canada toll-free no. : 1-888-562-5561

Fax number : (819) 779-2833Worldwide tel. no. : (819) 779-4335

4.0 Test Instruments

The test report shall list all test instruments used. The list shall identify instruments by

manufacturer's type and model numbers.

5.0 Equipment Requirements

5.1 Equipment Labels

Equipment that is certified under this RSS shall be permanently labelled on each item or

inseparable combination. The label shall contain the following:

(a) The certification number, prefixed by the name "Canada".

Note that CDMA type of equipment operating in the band 1610-1621.35 MHz will be

given a suffix "S" if they do not immediately meet the -70 dBW/MHz limit (refer to

Note 4 (ii) of Table 2C1 of Appendix 2 of Annex C for conditions).

(b) The manufacturer's name or trade name or brand name.

(c) A model name or number.

Equipment for which a certificate has been issued is not considered certified if it is not

properly labelled.

5.2 Transmitter External Controls

The transmitter shall not have any external controls accessible to the user that can be

adjusted and operated in violation of this Standard. When a high/low power switch is used

it must be set to maximum power for all tests, and noted in the test report. To prevent radio

interference caused by end-users (operators) transmissions in unauthorized frequencies

the following measures are instituted:

(a) Users of transmitters with external frequency selection controls shall not be able to

operate on channels other than those for which the apparatus has been preset by the

manufacturer, equipment supplier or service/maintenance personnel.


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(b) Transmitters having frequency programming capability are exempt from clause (a) if

the design of such transmitters:

(1) Is such that transmitters with external controls normally available to the operator

must be internally modified to place the equipment in the programmable mode.

Further, while in the programmable mode, the equipment shall not be capable oftransmitting. The procedures for making the modification and altering the

frequency program shall NOT be made available to the end user of the equipment;

or

(2) Requires the transmitter to be programmed for frequencies through controls

normally inaccessible to the operator; or

(3) Requires equipment to be programmed for frequencies through use of external

devices or specifically programmed modules made available only to

service/maintenance personnel; or

(4) Requires equipment to be programmed through cloning (copying a program

directly from another transmitter) using devices and procedures made available

only to service/maintenance personnel.

5.3 Supply Voltage and Temperature

Tests shall be performed at ambient temperature and at the manufacturer's rated supply

voltage except for the frequency stability test. The test voltage shall be stated in the test

report.

5.4 Definition of Bandwidth

Necessary bandwidthfor a given class of emission is the width of the frequency band

which is just sufficient to ensure the transmission of information at the rate and with the

quality required under specified conditions. In practice, this may be taken as the 99%

emission bandwidth.

Occupied bandwidth is the width of a frequency band such that, below the lower and above

the upper frequency limits, the mean powers emitted are each equal to 0.5% of the emitted

power. This is also known as the 99% emission bandwidth.

The occupied bandwidth should be stated in the test report. If the annexes do not specify anoccupied bandwidth test, then the manufacturers nominal bandwidth may be used.

Authorized bandwidth is the maximum width of the band of frequencies permitted to be

used by a channel.


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5.5 Frequency Plan, Channel Spacing, Transmit Power, etc.

There are various frequency bands allocated to the mobile satellite service. General

standards common to all bands are given below; standards pertaining to particular

frequency bands are in the annexes.

Before MESs can be certified, the service provider or equipment certification applicant

should provide a full system description to Industry Canada. Table 1 and the annexes list

the main parameters of the systems covered by this RSS.

Table 1

Frequency Bands and Permissible Output Powers, etc.

ParametersService types and frequency bands

Little LEO

(Orbcomm)

LEO 2

(Globalstar)

LEO 1

(Iridium)

Global GSO

(MSAT)

Uplink band, MHz 148-150.05 1610.5-1621.35 1621.35-1626.5 1626.5-1660.5

Lowest carrier, MHz 1610.73 1621.6875

Highest carrier, MHz 1620.57 1625.9792

Channel spacing uplink 1.23 MHz 41.667 kHz

Max Tx output power see Annex A see Annex C see Annex C see Annex B

Modulation type digital CDMA TDMA digital

MES Freq. stability, ppm +5 ppm +2.5 ppm +2.5 ppm +320 Hz openloop

Downlink band, MHz 137-138 2483.5-2500.0 Same as uplink

Time division

duplex (TDD)

Note: Table 1 refers to uplink (Earth to Space) parameters unless so indicated.GSO = geostationary orbit. LEO = low earth orbit.

5.6 New Technologies

Systems that cannot conform to this Standard, especially those using new technologies, maybe evaluated on a case-by-case basis by the Manager, Radio Equipment Standards (see

section 2.2).


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6.0 Transmitter Standards and Tests

6.1 Testing Methods:

(a) Tests are to be conducted in accordance with good engineering practices.

(b) Test results are to be presented in graphical form wherever possible. The graph shall

also include the specification limits.

(c) Associated equipment that is normally used with the equipment shall be so connected.

(d) If the RF output power is internally or externally adjustable or remotely controllable,

set or control it to the maximum rated power of the range for which equipment

certification is sought.

(e) The transmitter shall be modulated with signals representative of those encountered in

a real system operation.

(f) If in measuring emission power the spectrum analyser selectivity or bandwidth isinsufficient, a resolution bandwidth narrower than that specified, plus numerical

integration to sum the power, is permitted. The method used shall be described in the

test report.

(g) When the antenna is detachable, the transmitter output power may be measured by

replacing the antenna with a spectrum analyser of internal resistance equal to the

impedance specified for the antenna. Alternatively, impedance matching can be used

with the network loss accounted for.

When the antenna is not detachable, field strength measurement should be made using

a calibrated open area test site. A description of the method of measurement that is

acceptable to Industry Canada is found in Radio Standards Specification 212

(RSS-212).

The following formula may be used to convert field strength (FS) in volts/metre to

transmitter output power (TP) in watts:

(FS x D)2

TP = -----------30 x G

where D is the distance in metres between the two antennas and G is the antenna

numerical gain referenced to isotropic gain. (Note: In an open area test measurement

the effect due to the metal ground reflecting plane should be subtracted from the

maximum field strength value in order to reference it to free space, before calculating

TP).


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(h) The annexes may contain test methods that are specific to the particular

frequency bands, in which case those methods are to be used.

Where a test method specified in this document cannot be followed, an alternative

appropriate method may be used provided that it is fully described in the test report.

(i) If the transmitter is capable of tuning over several bands, testing at more than one testcarrier frequency may be required to verify any change in RF characteristics.

6.2 Output Power Test

The output power shall be measured when the transmitter is operating at the manufacturers

rated power and modulated with signals representative (i.e. typical) of those encountered in

a real system operation. This measurement shall be carried out before the other tests.

If the power is in bursts, the power shall be averaged over any 100 millisecond interval, or

over the burst interval if the burst is shorter than 100 milliseconds, during which its value is

at its maximum.Record the output power.

Minimum Standard:

As specified in the annexes, otherwise the output power shall not exceed by more than 2 dB

the value recommended by the satellite system operator.

6.3 Unwanted Emissions

Unwanted emissions comprise of out-of-band emissions (emission on a frequency or

frequencies immediately outside the necessary bandwidth), spurious emissions and

harmonics. They are to be measured when the transmitter is operating at the manufacturersrated power and modulated with signals representative of those encountered in a real

system operation.

The search for unwanted emissions shall be from the lowest frequency internally generated

or used in the device (local oscillator, intermediate or carrier frequency), or from 30 MHz,

whichever is the lowest frequency, to the 5th harmonic of the highest frequency generated

or used, without exceeding 40 GHz.

Measurement Method

(a) Set the carrier to the lowest assignable Canadian frequency for the service band for

which the equipment certification is sought (see Table 1).

Set the spectrum analyser resolution bandwidth to at least 2 to 3 times wider than the

occupied bandwidth, and adjust the display such that reference level corresponds to

the output power level measured in 6.2.


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Using the manufacturer's information on occupied bandwidth:

Set the spectrum analyser to a resolution bandwidth as close to 1.0% of the occupied

bandwidth as possible. NB: If the transmitter output is in bursts (such as in TDMA),

then unwanted emission spectrum plot may be best performed using a spectrum

analyser gated to measure during the mid-portion of the burst.

The mode used must be stated in the test report.

Set video bandwidth wider than the resolution bandwidth. (Note: video averaging is

permitted if the modulation envelope is near constant and errors from true averaging

are not greater than 2.5 dB.)

Set the sweep span to cover at least +250% of the authorized bandwidth.

Number of sweeps = 10.

Note: If the spectrum analyser in use does not have video averaging measurement

capability, video averaging may also be accomplished by setting the video bandwidth

less than the resolution bandwidth, then reducing the sweep speed and recording a

single sweep.

Record the spectrum plot.

Change the frequency sweep span to cover the spurious frequency search band from

the lowest local oscillator frequency or from 30 MHz, whichever is the lowest

frequency, to at least the 5th harmonic of the highest local oscillator or tuning

frequency, without exceeding 40 GHz.

Record and submit the spectrum plots.

(b) Repeat (a), using the highest assignable Canadian frequency for the service band in

question. However, the search for spurious emissions (i.e outside the +250%

authorized bandwidth) of (a) need not be repeated.

7.0 Frequency Stability

Frequency stability is a measure of the frequency drift due to temperature and supply

voltage variations, with reference to the frequency measured at +20oC and rated supply

voltage. The operating carrier frequency shall be set up in accordance with the

manufacturer's published operation and instruction manual prior to the commencement of

these tests. No adjustment of any frequency determining circuit element shall be made

subsequent to this initial set-up.


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The unmodulated carrier frequency shall be measured under the conditions specified below.

A sufficient stabilization period at each temperature shall be used prior to each frequency

measurement:

(a) at 10 degree intervals of temperatures between -30oC and +50oC at the manufacturer's

rated supply voltage, and

(b) at +20oC temperature and +15% supply voltage variations.

The frequency stabilities can be maintained to a lesser temperature range provided that the

transmitter is automatically inhibited from operating outside the lesser temperature range.

For handheld equipment that is only capable of operating from internal batteries, the

frequency stability tests shall be performed using a new battery without any further

requirement to vary the supply voltage. Alternatively, an external supply voltage can be

used and set at the battery nominal voltage, and again at the battery operating end point

voltage which shall be specified by the equipment manufacturer.

If an unmodulated carrier is not available, the mean frequency of a modulated carrier can be

obtained by using a frequency counter with gating time set to an appropriately large

multiple of symbol periods (gating time depending on the required accuracy). Full details

on the choice of values shall be included in the test report.

Minimum Standard: As specified in the annexes.

8.0 Exposure of Humans to Radio Frequency Fields

Before equipment certification is granted, the handset or mobile equipment must comply

with current standards on human exposure to RF fields. Contact Industry Canada (address

in 2.2) for standard RSS-102 (currently being developed).

If the equipment does not require measurement, full reasons and an assessment of the risk

of human exposure shall be submitted to Industry Canada for evaluation. RF hazard

protection concerning fixed stations will be dealt with by the radio licence.

9.0 Receiver Spurious Emissions

Radiation measurement is the standard method (with the device's antenna in place), with

the measurement performed using a calibrated open area test site. Description of a suitable

open area test site is found in RSS-212.

However, if the antenna is detachable, the receiver spurious signal may be measured by

replacing the antenna with a spectrum analyser of internal resistance equal to the


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impedance specified for the antenna. Even though antenna conducted measurement is

permitted, if a receivers radiated emissions cause harmful interference, the receiver must

be modified and re-certified to comply with the radiated limits. Therefore manufacturers

should check the radiated limit wherever possible.

The receiver shall be operated in the normal receive mode near the mid-point of the bandover which the receiver is designed to operate.

The search for spurious emissions shall be from the lowest frequency internally generated

or used in the receiver (local oscillator frequency, intermediate frequency or carrier

frequency), or 30 MHz, whichever is the higher, to at least 3 times the highest tunable or

local oscillator frequency, whichever is the higher frequency.

If the receiver incorporates a scanning mode of operation, refer to document RSS-135,

Digital Scanner Receivers, or RSS-215,Analogue Scanner Receivers, since there are

certain restrictions on their certification.

Minimum Standard:

(i) The field strength of any spurious frequency in the vertical or horizontal polarization,

measured at a distance of 3 metres from the antenna, shall not exceed the values in Table 2.

A spectrum analyser resolution bandwidth of 100 kHz shall be used for measurements

below 1.0 GHz and 1.0 MHz for the band above 1.0 GHz.

Table 2

General Spurious Emission Limits

Frequency (MHz) Field Strength (microvolts/m) at 3 metres

30-88

88-216

216-960

Above 960

100

150

200

500


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Equipment manufactured or imported before June 23, 1999 is permitted the limits in Table 3.

Table 3

Frequency (MHz) Field Strength (microvolts/m) at 3 metres

30-70

70-130

130-174

174-260

260-470

Above 470

320

500

500-1500 *

1500

1500-5000 *

5000

* Interpolate linearly. The following formulas may also be used, where FS is in microvolts/metre,

and F is in MHz: FS = (22.73 x F) -2454 for the band 130-174 MHz and

FS = (16.67 x F) -2833 for the band 260-470 MHz.

(ii) If spurious emissions are to be measured at the antenna connector, the emission power

in any 4 kHz shall not exceed 2 nanowatts (316 microvolts across 50 ohms).

10.0 Signalling and Access Compatibility Tests

Before an MES can be certified, the applicant for equipment certification shall provide

evidence, such as a letter from the satellite operator, that the MES signalling functions and

access to the satellite system have been tested and that it operates satisfactorily in

accordance with the satellite operator's requirements.

11.0 Licensing Requirements

A licence is required. For additional information regarding the licensing of these devices,

please contact Industry Canada: DOS-S at (613)998-3819/fax (613)952-9871/email

[email protected].

12.0 Equipment Certification and Test Report Submission

The test report, complete with measurement results, that addresses the requirements of thisStandard, is to be submitted with the application for certification of a transmitter. For

receiver certification, a detailed test report is not necessary; it is only required to report the

receiver tuning range or ranges, and the spurious emission levels. The application for

certification should be prepared in accordance with RSP-100 and sent to:


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Manager, Certification, Engineering and Operations

Industry Canada

1241 Clyde Avenue

Ottawa, Canada

K2C 1Y3

Tel: (613) 952-3200 / Fax: (613) 952-1088Internet: [email protected]

Issued under the authority of

the Minister of Industry

R.W. McCaughern

Director GeneralSpectrum Engineering


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Annex A

137-138/148-150.05 MHz Mobile Earth Station Requirements

A1. System Description

The 148-150.05 MHz uplink band of this non-geostationary satellite system shares with the

terrestrial land mobile service (the latter governed by RSS-119) and so the satellite system

operator shall show proof to Industry Canada that the system provides adequate protection

to the land mobile service, as follows:

(a) No individual mobile earth station (MES) shall transmit on the same frequency that is

actively in use by the land mobile service.

(b) An MES shall not transmit for more than 1.0% of the time during any 15 minute

period.

(c) Any single transmission from an MES shall not exceed 450 milliseconds and

consecutive transmissions from a single MES on the same frequency shall be

separated by at least 15 seconds.

(d) Before an MES can be certified, the applicant shall provide test results and a

declaration from the satellite service provider that the MES has worked satisfactorily

with the satellite system.

(e) Before the satellite operator can get a licence to operate such a system, he/she shall

demonstrate to Industry Canada that the system is fully equipped with the monitoringsystem, with adequate backup facilities.

(f) Provide a system description and carrier frequency assignment capability.

A2. Mobile Station Output Power and EIRP

The application for mobile station equipment certification shall enclose a letter from the

satellite service provider stating the mobile station EIRP that is necessary for satisfactory

communication. The maximum permissible EIRP will be this necessary EIRP plus a 2 dB

margin. If a detachable antenna is used, the permissible transmitter output power is to be

2 dB less than the maximum permissible EIRP. The power is to be measured as per themethod of section 6.2 (main text).

A3. Out-of-Band Emissions

When the mobile station is modulated as in A2, the attenuation of the spectrum shall be in

accordance with the schedule of column (a), or alternatively of column (b) of Table A1,


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whichever is the less stringent. Notwithstanding the above, the mask of section A5 may be

used in lieu of Tables A1 and A2.

Table A1

Out-of-Band Emissions

Frequency OffsetNormalized to SR

(symbol rate)

(a)Minimum attenuation

relative to in-band spectraldensity, (dB)

(b)Minimum attenuationrelative to transmitter

output power (dB) in 4 kHz

+0.75 SR 0 0

+1.40 SR 20 30

+2.80 SR 40 50

+4.0 SR 55 or (37 + 10 Log10TP)

whichever is less stringent.

65 or (47 + 10 Log10TP)

whichever is less stringent.

TP = transmitter output power in watts. SR is the symbol rate in symbols/second.

(Note: Spectral density is power per unit bandwidth, e.g. watts per 300 Hz of bandwidth.)

From the spectrum plot, determine the occupied bandwidth and report this in the test

report.

A4. Spurious and Harmonic Emissions

Spurious and harmonic emissions, excluding the frequency band of 4 SR about the carrier

frequency (already specified in Table A1), shall be attenuated below the transmitter output

power TP in accordance with the schedule of Table A2, when measured with a spectrum

analyser of 4 kHz resolution bandwidth.

Table A2

Spurious and Harmonic Emissions

Frequency (MHz) Minimum Attenuation Relative to Tx Power in any 4

kHz

30 - 1559 83 dB or (65 + 10 Log10TP) dB whichever is less stringent

above 1559 55 dB or (37 + 10 Log10TP) dB whichever is less stringent


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A5. For systems of an authorized bandwidth of 5 kHz or less, the Out-of-Band emissions may,

in lieu of A3 and A4, comply with the following:

The mean power of emissions from the mobile station transmitter, modulated as in A2,

shall be attenuated below the mean power of the unmodulated carrier, or below the

transmitter mean output power, in accordance with the following schedule:

(a) On any frequency removed from the assigned carrier frequency by more than 50%,

but not more than 100% of the authorized bandwidth: at least 25 dB in any 30 Hz

bandwidth.

(b) On any frequency removed from the assigned carrier frequency by more than 100%,

but not more than 250% of the authorized bandwidth: at least 35 dB in any 30 Hz

bandwidth.

(c) On any frequency removed from the assigned carrier frequency by more than 250% of

the authorized bandwidth: at least 43 + 10log10(TP) dB, in any 3 kHz bandwidth.

TP is the transmitter mean output power in watts.

In step (c), the search for unwanted emissions of the transmitter shall be from the lowest

frequency internally generated or used in the device (local oscillator, intermediate or carrier

frequency) to the 5th harmonic of the highest frequency generated or used, without

exceeding 40 GHz.

A6. Transmitter Off Power

The transmitter in the idle mode shall comply with the emission limits specified for the

receiver (see section 9.0 of the main text) or to -70 dBc (i.e. 70 dB below the transmitter

burst power), whichever is the less stringent.

A7. Frequency Stability

The mobile station shall be tested for frequency stability as per section 7.0 of the main text.

The RF carrier frequency shall not depart from the reference frequency (reference frequency

is the frequency at 20oC and rated supply voltage) in excess of +5 parts per million. In lieu

of complying with this limit, the applicant may demonstrate that the equipment frequency

tolerance tested under the said temperature and supply voltage variations, and taking into

account manufacturing tolerance and aging, will not cause interference to the land mobile

adjacent channels. The latter frequency tolerance must be acceptable to the satellite system

provider (see section 10.0 of the main text).

A8. Receiver Spurious Emissions

See main text section 9.0.


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Annex B

1626.5-1660.5 MHz Mobile Earth Station Requirements

B1. Mobile Station Output Power and EIRP

The application for mobile station equipment certification shall enclose a letter from the

satellite service provider stating the mobile station EIRP that is necessary for satisfactory


margin. If a detachable antenna is used, the permissible transmitter output power is to be

2 dB less than the maximum permissible EIRP. The transmitter is to be modulated and the

power measured as per the method of section 6.2 (main text).

B2. Out-of-Band Emissions

When the mobile station is modulated as in B1, the attenuation of the spectrum shall be inaccordance with the schedule of column (a), or alternatively of column (b) of Table B1,

whichever is the less stringent.

Table B1

Out-of-Band Emissions

Frequency OffsetNormalized to SR

(symbol rate)

(a)Minimum attenuation

relative to in-band spectral

density, (dB)

(b)Minimum attenuation relative totransmitter output power (dB),

in any 4 kHz

+0.75 SR 0 0

+1.40 SR 20 30

+2.80 SR 40 50

+4.00 SR 55 or (37 + 10 Log10 TP)

whichever is less stringent

65 or (47 + 10 Log10 TP)

whichever is less stringent

TP = transmitter output power in watts. SR is the symbol rate in symbols/second.

(Note: Spectral density is power per unit bandwidth, e.g. watts per 300 Hz of bandwidths.)

From the spectrum plot, determine the occupied bandwidth and report this in the test report.


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B3. Spurious and Harmonic Emissions

Spurious and harmonic emissions, excluding the frequency band of 4 SR about the carrier

frequency (already specified in Table B1), shall be attenuated below the transmitter output

power TP in accordance with the schedule of Table B2, when measured with a spectrum

analyser of 4 kHz resolution bandwidth.

Table B2

Spurious and Harmonic Emissions

Frequency (MHz) Minimum Attenuation Relative to Tx Power in any 4 kHz

30-1559 83 dB or (65 + 10 Log10 TP) dB whichever is less stringent

above 1559 55 dB or (37 + 10 Log10 TP) dB whichever is less stringent

B4. Transmitter Off Power

The transmitter in the idle mode shall comply with the emission limits specified for the

receiver (see section 9.0 of the main text) or to -70 dBc (i.e. 70 dB below the transmitter


B5. Frequency Stability


The RF carrier frequency shall not depart from the reference frequency (reference frequencyis the frequency at 20oC and rated supply voltage) in excess of +320 Hz.

B6. Receiver Spurious Emissions



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Annex C

1610-1626.5 MHz Mobile Earth Station Requirements

C1. General

The mobile earth station (MES) certification applicant shall submit a detailed system

description from the satellite service provider .

There should be a capability of the Non-geostationary orbit (NGSO) mobile satellite service

(MSS) system to determine the geographical coordinates (latitude and longitude) of its

operating MES terminals and the accuracy should be stated in the test report.

C2. Mobile Station Output Power and EIRP

The application for mobile station equipment certification shall enclose a letter from thesatellite service provider stating the mobile station EIRP that is necessary for satisfactory


margin. If a detachable antenna is used, the certification application shall state the

recommended antenna type and manufacturer, the antenna gain and the transmitter output

power to be used for the terminal. The transmitter is to be modulated and the power

measured as per the method of section 6.2 of the main text.

C3. Unwanted Emissions

Unwanted emissions (out of band and spurious emissions) limits are given in the

appendices. These are in terms of EIRP (i.e radiated power) and shall include the antennagain. Testing to verify unwanted emissions to comply with the limits in the tables shall be

performed for the worst case, which is usually the outermost channels. Therefore the test

report shall contain the highest and lowest assignable carrier frequencies (testing officer to

obtain this information from the satellite operator) as well as the spectrum plots of these

channels.

From the spectrum plot, determine the occupied bandwidth and report this in the test report.

C4. Transmitter Off Power

The transmitter in the idle mode shall comply with the emission limits specified for thereceiver (see section 9.0 of the main text) or to -70 dBc (i.e. 70 dB below the transmitter



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C5. Frequency Stability


The RF carrier frequency shall not depart from the reference frequency (reference frequency

is the frequency at 20oC and rated supply voltage) in excess of +2.5 parts per million. In

lieu of complying with this limit, the applicant may demonstrate that the equipmentfrequency tolerance tested under the said temperature and supply voltage variations, and

taking into account manufacturing tolerance and aging, will not cause interference to other

users in adjacent bands. The latter frequency tolerance must be acceptable to the satellite

system provider (see section 10.0 of the main text).

C6. Receiver Spurious Emissions



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The tests for unwanted emissions shall be carried out using the lowest and the highest settable

carrier frequencies, which shall be noted into the test report.

Table 1C1

Maximum unwanted emissions outside the band 1 610 to 1 626.5 MHz andthe band 1 626.5 to 1 628.5 MHz from an MES operating in the band

1621.35-1626.5 MHz and using TDMA access techniques

(see Note: 5)

Frequency

(MHz)

Carrier-on

EIRP

(dBW) (NOTE 1)

Measurement

Bandwidth

0.1 - 30 -66 10 kHz

30 - 1 000 -66 100 kHz

1 000 - 1 559 -60 1 MHz

1 559 - 1 573.42 -70 1 MHz (NOTE 2)

1 573.42 - 1 580.42 -70 (NOTE 3) 1 MHz (NOTE 2)

1 580.42 - 1 605 -70 1 MHz (NOTE 2)

1 605 - 1 610 (NOTE 4) 1 MHz (NOTE 2)

1 610 - 1 626.5 Not applicable Not applicable

1 626.5 - 1 628.5 Not applicable Not applicable

1 628. 5 - 1 631.5 -60 30 kHz

1 631.5 - 1 636.5 -60 100 kHz

1 636.5 - 1 646.5 -60 300 kHz

1 646.5 -1 666.5 -60 1 MHz

1 666.5 - 12 750 -60 3 MHz

Note 1: Average responding instruments shall be used to measure the EIRP values except when Note 3 applies:(i) the measurement time shall be such that the difference of the measured EIRP levels, averaged over

subsequent measurement samples, is less than 1 dB at any particular measurement frequency, or

(ii) a measurement time of 100 ms may be used if the measured EIRP values comply with the

applicable limits.

For non-continuous signals the measurement shall be performed over the active part of the burst.

Note 2: Measurement bandwidths less than 1 MHz (e.g. 30 kHz, 100 kHz or 300 kHz) are allowable provided

the power in the narrower bandwidth is integrated over 1 MHz.Note 3: Averaged over 20 ms.Note 4: -70 dBW/MHz at 1 605 MHz, linearly interpolated in dB/MHz, to -10 dBW/MHz at 1 610 MHz.

Note 5: Provide a spectrum analyser plot for each of the 12 applicable sub-bands identified in this table.


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Table 1C2

Maximum unwanted emissions within the allocated band 1 610.0 to 1 626.5 MHz and theband 1 626.5 to 1 628.5 MHz from an MES (TDMA type) operating such that the

nominated bandwidth is entirely or partially contained

in the frequency band 1 621.35 to 1 626.5 MHz

(See Notes 1 and 2)

Frequency Offset Carrier-on

(kHz)

(NOTE 3)

EIRP

(dBW)

(NOTE 4)

Measurement bandwidth

(kHz)

(NOTE 5)

0 to 160 -35 30

160 to 225 -35 to -38.5 30

225 to 650 -38.5 to -45 30

650 to 1 365 -45 301 365 to 1 800 -53 to -56 30

1 800 to 16 500 -56 30

Note 1: Average responding instruments shall be used to measure the EIRP values.(i) the measurement time shall be such that the difference of the measured EIRP levels, averaged over


(ii) a measurement time of 100 ms may be used if the measured EIRP values comply with the applicable

limits.


Note 2: The MES should include means of inhibiting transmissions when necessary to protect the radioastronomyservice in the 1 610.6 - 1 613.8 MHz band from emissions produced by the MES.

Note 3: Frequency offset is determined from:

(i) the nearest edge of the nominated bandwidth Bn of the nominal carrier closest to the MSS system

operating in another assigned band within the band 1 610 to 1 626.5 MHz. The frequency offset is

measured in the direction of the adjacent MSS system.

(ii) the upper edge of the nominated bandwidth of the carrier under test for emissions within the band

1626.5 to 1628.5 MHz.

Note 4: Linearly interpolated in dBW versus frequency offset.

Note 5: The measurement bandwidth used may be 3 kHz if the unwanted EIRP limits are reducedcorrespondingly.


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Table 1C3

Maximum EIRP of the unwanted emissions of an MES (TDMA type)in the carrier-off state

Frequency(MHz)

EIRP(dBW)

Measurementbandwidth

0.1 - 30 -87 10 kHz

30 - 1 000 -87 100 kHz

1 000 - 12 750 -77 100 kHz

Note: Peak hold measurement techniques shall be

used. These values must be at or below the

values for the carrier-on state.


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Appendix 2 of Annex C

Essential Technical Requirements of MES for Global NGSO MSS Systemsin the bands 1-3 GHz Using CDMA Techniques

This appendix contains essential technical requirements for MES terminals of global NGSO (non

geostationary orbit) MSS systems using code-division multiple access (CDMA) and operating in

the bands 1-3 GHz. The tables in the following pages of this appendix summarize the maximum

unwanted emission requirements for such terminals. In addition to these unwanted emission

requirements there is an additional requirement for automatic shut-off features of MES terminals

which is:

Automatic Shut-off Features: The MES should include a means of identifying whether there is

a malfunctioning processor or other fault in its operation and be capable of automatically shutting

down transmissions in the case of an identified malfunction no later than one second after a

malfunction has been identified.

Nominated Bandwidth (Bn ) (Note 1): The Bn of the MES radio frequency transmission is wide

enough to encompass all spectral elements of the transmission which have a level greater than the

specified levels of unwanted emissions. The Bn is defined relative to the MES actual carrier

frequency fc. Bn is the width of the frequency interval (fc - a, fc + b), where a and b, which is

specified by the terminal manufacturer, may vary with fc. subject to the following:

The frequency interval (fc - a, fc + b) does not encompass more than either:

(i) For narrowband systems(see Note 1): when a = b, 4 channel carrier spacings; if the test

report does not show the carrier spacing, then 4 channel bandwidths will be used instead;or

(ii) For narrowband systems : when a b, 1 nominal carrier frequency spacing; or

(iii) If the test report does not show the Bn value, then certification will be based on a default of

Bn = occupied bandwidth of the equipment.

(iv) 1 nominal carrier frequency spacing for wideband systems.

The frequency interval (fc - a, fc + b) shall be entirely within the assigned band of the MES

terminals.

Note 1: A narrowband system in this context is a system in which the nominal carrier frequency

spacing for MES transmissions in the Earth-to-space direction is less than 300 kHz. If this

frequency spacing is greater than 300 kHz, the system is wideband.


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Unwanted Emission Limits

The minimum standards are given in Tables 2C1, 2C2 and 2C3, which are in terms of EIRP

(i.e includes antenna gain).

The test report shall indicate the value of the nominated bandwidth Bn.

The tests for unwanted emissions shall be carried out using the lowest and the highest settable

carrier frequencies, which shall be noted into the test report.


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Table 2C1

Maximum unwanted emissions outside the band 1 610 to 1 626.5 MHz andthe band 1 626.5 to 1 628.5 MHz from an MES operating

in the band 1610-1621.35 MHz and using CDMA techniques

(see Note 6)

Frequency Carrier-on

(MHz) EIRP

(dBW) (NOTE 1)

Measurement

Bandwidth

0.1 - 30 -66 10 kHz

30 - 1 000 -66 100 kHz

1 000 - 1 559 -60 1 MHz

1 559 - 1 573.42 -70 1 MHz (NOTE 2)

1 573.42 - 1 580.42 -70 (NOTE 3) 1 MHz (NOTE 2)

1 580.42 - 1 605 -70 (NOTE 4) 1 MHz (NOTE 2)

1 605 - 1 610 (NOTE 5) 1 MHz (NOTE 2)

1 610 - 1 626.5 Not applicable Not applicable

1 626.5 - 1 628.5 Not applicable Not applicable

1 628. 5 - 1 631.5 -60 30 kHz

1 631.5 - 1 636.5 -60 100 kHz

1 636.5 - 1 646.5 -60 300 kHz

1 646.5 -1 666.5 -60 1 MHz

1 666.5 - 12 750 -60 3 MHz

Note 1: Average responding instruments shall be used to measure the EIRP values except when NOTE 3 applies:( i) the measurement time shall be such that the difference of the measured EIRP levels, averaged over subsequent

measurement samples, is less than 1 dB at any particular measurement frequency, or(ii) a measurement time of 100 ms may be used if the measured EIRP values comply with the applicable limits.


Note 2: Measurement bandwidths less than 1 MHz (e.g. 30 kHz, 100 kHz or 300 kHz) are allowable provided the powerin the narrower bandwidth is integrated over 1 MHz.

Note 3: Averaged over 20 ms.Note 4: (i) Handheld MESs shall meet the -70 dBW/MHz limit.

(ii) Non-handheld MESs can be certified (type-approved) to a limit of -64 dBW/MHz for unwanted emissions

in the band 1580.42-1605 MHz (and be assigned a suffix S to the model certification number) on the condition

that the satellite service provider submits a letter agreeing to the following :

(a) All such special MESs may be put into use until 1 January 2002. After this date, the certification will be

revoked, i.e. manufacture, importation or sale in Canada of this model will not be permitted. However, anysuch special MESs that are already in use by this date can remain in use until 1 January 2005.

(b) After 1 January 2005 the satellite service provider shall undertake to remove these non-conforming MESs

from service or modify them to conform to the -70 dBW/MHz limit.

Note 5: Taking into account Note 4 for the value at 1 605 MHz, linearly interpolated in dB/MHz to -10 dBW/MHz at1 610 MHz.

Note 6: Provide a spectrum analyser plot for each of the 12 applicable sub-bands identified in this table.


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Table 2C2

Maximum unwanted emissions within the allocated band 1 610.0 to 1 626.5 MHzand the band 1 626.5 to 1 628.5 MHz from an MES (CDMA type) operating such that the

nominated bandwidth is entirely contained in the frequency band 1 610.0 to 1 621.35 MHz

Carrier-on

Frequency offset(Note 3) (kHz)

EIRP(Note 4) (dBW)

Measurement bandwidth(Note 5) (kHz)

0 to 160 -32 30

160 to 2 300 -32 to -56 30

2 300 to 16 500 -56 30

Note 1: Average responding instruments shall be used to measure the EIRP values.

(i) the measurement time shall be such that the difference of the measured EIRP levels, averaged over


(ii) a measurement time of 100 ms may be used if the measured EIRP values comply with the applicablelimits.


Note 2: The MES should include means of inhibiting transmissions when necessary to protect the radioastronomyservice in the 1 610.6 - 1 613.8 MHz band from emissions produced by the MES.

Note 3: Frequency offset is determined from:

(i) the nearest edge of the nominated bandwidth of the nominal carrier closest to the MSS system

operating in another assigned band within the band 1 610 to 1 626.5 MHz. The frequency offset is

measured in the direction of the adjacent MSS system.

(ii) the upper edge of the nominated bandwidth of the carrier under test for emissions within the band

1626.5 to 1628.5 MHz.

Note 4: Linearly interpolated in dBW versus frequency offset.

Note 5: The measurement bandwidth used may be 3 kHz if the unwanted EIRP limits are reduced

correspondingly.


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Table 2C3

Maximum EIRP of the unwanted emissions from an MES (CDMA type)

in the carrier-off state

Frequency

(MHz)

EIRP

(DBW)

Measurement

bandwidth

0.1 - 30 -87 10 kHz

30 - 1 000 -87 100 kHz

1 000 - 12 750 -77 100 kHz

Note: Peak hold measurement techniques shall

be used. These values must be at or below the

values for the carrier-on state.

RSS-170 [Satellite Mobile Earth Stations]

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Transcript of RSS-170 [Satellite Mobile Earth Stations]