RSS-118 - Land and Subscriber Stations: Voice, Data and Tone Modulated, Angle Modulation Radiotelephone Transmitters and Receivers Operating in the Cellular Mobile Bands 824-849 MHz and 869-894 MHz
RSS-118 - Land and Subscriber Stations: Voice, Data and Tone Modulated, Angle Modulation Radiotelephone Transmitters and Receivers Operating in the Cellular Mobile Bands 824-849 MHz and 869-894 MHz
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Related Documents
RSS-118 - Annex A - Cellular System Mobile
Station Land Station Compatibility Standard
October 22, 1983
RSS-118 - Supplement 1993-1
June 12, 1993
RSS-118 - Amendment No. 2
Issue 2, August 24, 1996
RSS-118 - Addendum
September 1, 1990
Issue 2
August 19, 1990
Spectrum Management and Telecommunications
Radio Standards Specification
Table of Contents
- Intent
- General
- Related Documents
- Equipment Requirements
- Standard Test Conditions and Definitions
- Environmental Test Conditions
- Transmitter Tests under Standard Test Conditions
- Transmitter Tests under Environmental Conditions
- Receiver Tests under Standard Test Conditions
- Standard Radiated Signal Measurement Procedure
- Compliance with Cellular System-Compatibility Standard
1. Intent
1.1 This Specification and the Compatibility Standard annexed hereto prescribe the minimum requirements for the type-approval of radiotelephone transmitters and receivers operating primarily in a voice modulated mode with maximum frequency deviation of ± 12.0 kHz in the cellular mobile bands 824-849 MHz and 869-894 MHz.
1.2 Allocated Bands and Standard Channel Spacing
In addition to the bands 825-845 MHz and 870-890 MHz, an additional 10 MHz of spectrum has been sub-allocated to the Canadian cellular radio service (see 3.3). The bands allocated for cellular mobile service are:
Mobile transmit channel at 825.030 MHz and the corresponding base transmit channel at 870.030 MHz shall be termed Channel 1. For channel numbering in the additional 10 MHz sub-allocated bands, see SRSP-503.
Standard channel spacing in the allocated bands is 30 kHz.
1.3 Rated Duty Cycle
Application for type-approval shall be made under one of the following rated duty cycles:
- Continuous
- Semi-Continuous
- Intermittent
1.3.1 Duty Cycle rating shall be designated by the suffix of the letter "C", "S", or "I" to the Type-Approval Number corresponding to (a), (b) or (c) in the above paragraph.
1.3.2 Standard test conditions for various duty cycle ratings are contained in paragraph 5.11.
1.4 Transmitters and receivers type-approved under this Specification are considered technically suitable for licensing in Canada pursuant to the Radio Regulations made under the Radio Act.
2. General
2.1 Anyone seeking approval of radio equipment under this Specification shall satisfy the Department at his own expense that the equipment actually meets the requirements of this Specification.
2.2 Notwithstanding the fact that a particular radio equipment meets the requirements of this Specification, the Department reserves the right to require that adjustments be made to that equipment if it causes interference within the meaning of the Radio Act.
2.3 This Specification prescribes minimum requirements only for a type of equipment. Certain users may wish to specify additional requirements to meet specific applications using this type of equipment. Equipment submitted for type-approval must comply with the minimum requirements for all parameters contained herein, and all units of the type manufactured for sale shall comply for the entire period of validity of the type-approval.
2.4 The Department reserves the right to revise this Specification.
3. Related Documents
The current issues of the following documents are applicable:
3.1 Radio Standards Procedure (RSP) 100: Certification of Radio Equipment.
3.2 Cellular System Mobile Station-Land Station Compatibility Standard: System compatibility requirements of equipment (see Annex A to this specification).
3.3 Standard Radio System Plan (SRSP) 503: Technical Requirements for Cellular Radiotelephone Systems Operating in the Bands 824-849 MHz and 869-894 MHz.
3.4 Telecommunications Regulation Circular (TRC) 49: Information on the Application of the Telecommunications Apparatus Technical Assessment and Testing Fees Regulations Made Under the Financial Administration Act.
4. Equipment Requirements
4.1 Equipment-Identification
Identification requirements for equipment intended for use in Canada are specified in RSP 100. At the time of application for type-approval under this specification a drawing, or equivalent, shall be submitted with the engineering brief to detail the equipment label and the information to be contained on the label that will be affixed to the production models of the equipment. In addition, the engineering brief shall clearly identify the equipment, the name, the type of unit, the manufacturer's name and the manufacturer's specified power output rating.
4.2 Transmitter Power Output Controls
Operator controls shall not permit operation at power levels greater than that permitted by the system.
5. Standard Test Conditions and Definitions
5.1 General
Standard test conditions are those conditions under which the equipment shall be operated while it is being tested for minimum performance requirements. These conditions apply unless otherwise specified.
5.1.1 Standard Operating Conditions
5.1.2 General
Except as specified below, the equipment shall be operated in accordance with the manufacturer's published instructions and in the case or cabinet supplied, where this is essential to the performance of the equipment.
5.1.3 Transmitter
Modulation limiting shall be initially adjusted in accordance with the manufacturer's published instructions for maximum frequency deviation of ± 12 kHz and shall remain operative for all tests without readjustment.
5.1.4 Receiver
For all tests the receiver shall be unmuted and the RF external gain control, if any, shall be set to full gain.
5.1.5 Associated Equipment
Associated equipment shall be that normally used with the transmitter and/or receiver. Standard conditions shall apply to the associated equipment.
5.2 Standard Test Voltage
Standard Test Voltage shall be within ± 2% of the value stated by the manufacturer to be the test voltage. It shall be measured at the point of power connection to the equipment. For equipment powered by a battery, an appropriate substitute variable voltage, low impedance, regulated power source may be used for tests under environmental conditions.
5.3 Warm-up Period
The equipment may have a 15 minute warm-up period under standby conditions prior to all tests, except where otherwise specified.
5.4 Standard Atmospheric Conditions
Tests shall be conducted under ambient conditions of atmospheric pressure and humidity at a temperature of 25°C ± 5°C.
5.5 Standard Test Frequency
Except where otherwise specified, all tests shall be conducted on an assignable frequency which is near the middle of the frequency range within which the equipment is designed to operate. This frequency shall be specifically identified in the test report.
5.6 Standard Input and Output Terminations
Transmitter and receiver standard terminations shall be resistive and numerically equal to the design impedances at the specific terminals concerned. The values shall be recorded in the test report. All input and output terminals shall be properly terminated under all test conditions.
5.7 Standard System Frequency Deviation
The Standard System Frequency Deviation shall be ±12 kHz (maximum) for voice, ± 8 kHz (nominal) for wideband data, and ±2 kHz (nominal) for the Supervisory Audio Tone (SAT). Simultaneous voice and SAT produce a peak frequency deviation of ±14 kHz (nominal).
5.8 Standard Test Modulation
Standard Test Modulation (voice) shall be a 1000 Hz sinusoidal audio input signal having 1% or less total harmonic distortion applied at the level required to produce ±8 kHz frequency deviation.
Standard Test Modulation (data) shall be that required to produce a quasi-random 10 kilobit/second data pattern at ±8 kHz peak frequency deviation. Information regarding the quasi-random data pattern used should be included with the engineering test report. A sequence of length 511 bits or greater shall be used.
5.9 Receiver Standard Input Signal Source
Shall be a signal generator whose output impedance shall be matched to the nominal input impedance of the receiver (which shall be stated by the manufacturer) and whose calibrated output voltage shall be corrected to take into account impedance matching losses when terminated. Incidental modulation of the output signal voltage shall not effect the measurement accuracy.
5.10 Interconnection of Signal Generators for Multiple Signal Tests
When it is necessary to couple two or more signal generators to a receiver, a combining network shall be used such that each signal generator shall see a matched load when the output of the network is matched to the nominal input impedance of the receiver. Account shall be taken of losses in the combining and/or matching networks to establish the signal levels delivered to the receiver. The effect of intermodulation products and noise generated within the signal generators shall not affect the measurement accuracy.
5.11 Standard Test Duty Cycles
Transmitter rated duty cycle shall be designated by the manufacturer as either continuous, semi-continuous, or intermittent. The transmitter shall be tested in accordance with the following test conditions:
- Continuous: The transmitter shall be operated continuously at full rated output power for a period of twenty-four (24) hours.
- Semi-continuous: The transmitter shall be operated at full rated output power under a cycle of ten minutes carrier "on" (transmit) and ten minutes carrier "off" (standby), for a period of eight (8) hours.
- Intermittent: The transmitter shall be operated at full rated output power under a cycle of three minutes carrier "on" (transmit), and fifteen minutes, carrier "off" (standby), for a period of four (4) hours.
5.12 Standard Test Equipment Requirements
5.12.1 Standard Test Receiver
The Standard Test Receiver shall consist of a configuration of test equipment complying with the following minimal requirements.
- It shall be tunable over the applicable range of radio frequencies.
- It shall be capable of measuring positive and negative peak values of carrier frequency deviations up to ± 15 kHz with an accuracy of 5% or better.
- It shall incorporate a switchable de-emphasis network whose audio response characteristic for a constant signal deviation does not vary by more than ± 1 dB from a 750 microsecond de-emphasis characteristic over the frequency range 50 to 6000 hertz.
- It shall incorporate a switchable 2:1 expander (2 dB output change for every 1 dB change in input).
- The nominal 3 dB audio band pass shall be from 50 hertz to 20 kHz and the variation in the response shall not exceed ± 0.5 dB within the range 300 to 3000 hertz with the expander switched off.
- Distortion due to signal processing shall not exceed 2%.
- Inherent hum and noise input shall be at least 50 dB below the level of a signal with standard test modulation.
- It shall be properly terminated during all tests and a switchable "C" message weighted filter shall be incorporated.
- It shall be capable of processing wideband data transmitted at a 10 kilobit/sec rate.
5.12.2 Spectrum Analyzer or Frequency Selective Voltmeter
- Shall have the capability of measuring each of two signals differing in frequency by 1000 Hz and in level by 60 dB, with an accuracy of ± 2 dB.
- Shall have a dynamic range of at least 70 dB.
- Shall be capable of measuring relative levels of input signal components with an accuracy of ± 1 dB or better.
- Shall be capable of measuring the amplitude of the modulation components for wideband data measurement with a resolution bandwidth of 300 Hz.
5.13 Instrumentation Accuracy
The test report shall list all test equipment used and its date of calibration. The list shall identify instruments by manufacturer's type or model number. The following parameters shall be measured with instrumentation having at least the accuracy indicated below:
± 2.0 dB above 1 GHz
6. Environmental Test Conditions
6.1 Environmental Test Conditions
- Self contained equipment.
Temperature: -10°C, +40°C
Voltage: -20%, +10% of standard test voltage - Subscriber equipment, intended for use with external power supplies.
Temperature: -30°, +60°C
Voltage: ± 10% of standard test voltage - Base station equipment.
Temperature: minimum range +4°C, +49°C.
Voltage: ± 10% of standard test voltage
6.1.1 Equipment with self-contained batteries
- During environmental tests it shall be permissible to substitute an external voltage source. In these cases, the batteries may be disconnected, but not removed.
- When tested with an external power supply, the equipment shall be operated under the conditions applicable to externally powered equipment.
6.2 Tolerances
Environmental test conditions shall be maintained within the following tolerances:
- Temperature: ± 2°C
- Voltage: ± 2%
6.3 Temperature Stabilization
For the purposes of these tests, equipment temperatures shall be considered stabilized when the temperature of the largest internal mass remains within ± 3°C of the specified value when the equipment is inoperative, or when the crest temperature of the largest internal mass does not vary by more than ± 5°C, with the equipment operating.
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