NCC
Law Source Retrieving System Laws And Regulations

Print Date：113/04/20 13:02

1. Scope
1.1 Accordance
The specification is issued pursuant to paragraph 1 of Article 42 of the Telecommunications Acts.
1.2 Application
1. 500 MHz Trunked Radio Terminal, Handheld Station (HS)
2. 500 MHz Trunked Radio Terminal, Mobile Station (MS)
3. 800 MHz Trunked Radio Terminal, Handheld Station (HS)
4. 800 MHz Trunked Radio Terminal, Mobile Station (MS)
1.3 Contents and Reference
The normative reference of the test items, conformance requirement, method of tests and relevant requirements for use in the specifications of Trunked Radio Terminal MS and HS are based on the ETS 300 086 ( January, 1991)； and CNS 11708, Method of Test for Land Mobile Communication FM or PM Transmitters, 25-470MHz. These limits have been chosen to comply with the international standards for a complete technical regulation.

2. Abbreviations
2.1 Abbreviations
The abbreviations of these requirements are as follows,

3. Required Test Items

4. Frequency Range
4.1 Test purpose
500MHz Trunked Radio Terminal:
To verify that Trunked Radio Terminal shall operate within the frequency bands from 507.4375MHz to 509.950MHz and from 523.9375MHz to 526.450MHz.
800MHz Trunked Radio Terminal:
To verify that Trunked Radio Terminal shall operate within the frequency band from 810.5MHz to 812MHz and from 855.5MHz to 857MHz.
4.2 Conformance requirement
500MHz Trunked Radio Terminal:
Tx band: 523.9375 ～ 526.450 MHz (Tx)
Rx band: 507.4375 ～ 509.950 MHz (Rx)
800MHz Trunked Radio Terminal:
Tx band: 810.5 ～ 812 MHz (Tx)
Rx band: 855.5 ～ 857 MHz (Rx)
4.3 Method of measurement
The MS or HS should be situated in an isolated environment from any radio system without transmitting.
The MS or HS should be switched-on and set in a transmitting (carrier-on) mode for the test required the highest and lowest frequency of the applicant's assignment.
The MS or HS should be switched-on and set in a receiving (carrier-off) mode. The signal generator shall be set at any channel of the allocated frequency, and transmit 1,000Hz audio tone signal modulated with 3,000Hz and 1mV output power level to EUT. The EUT shall receive the signal.
In case, the EUT is of a digital modulation, to transmit the signal according to the modulation mode and output power level in itself to the spectrum analyzer.
The spectrum analyzer shall be set in sweep mode and shall be operated under the following conditions:
Frequency range: as required for frequency range to be assessed
Resolution bandwidth: no less than 100KHz
Display bandwidth: equal to the measurement bandwidth
Averaging: no
Peak hold: yes
4.4 Test requirement
The test requirements are given in Annex A, and measurement shall be set up as Annex B. In the test equipment, the spectrum analyzer noise floor shall be at least 6dB below the appropriate limits of 65dB.

5. Maximum Transmitter Output Power
5.1 Test purpose
To verify that the maximum transmitter output power of 500MHz MS and HS do not exceed the rated output power of 25W and 5W respectively within the range from 523.9375MHz to 526.450MHz.
To verify that maximum transmitter output power of 800MHz MS and HS do not exceed the rated output power of 25W and 5W respectively within the range from 810.5MHz to 812MHz.
5.2 Conformance requirement
The maximum transmitter output power of MS and HS shall not exceed the rated output power of 25W and 5W respectively
5.3 Method of measurement
The MS or HS should be switched-on and set in a transmitting (carrier-on) mode. The output of transmitter shall be connected to a 50Ωpower attenuator and through an artificial antenna to a spectrum analyzer, to measure the output power .
5.4 Test requirement
The test requirements are given in Annex A, and measurement shall be set up as Annex B. In the test equipment, the spectrum analyzer noise floor shall be at least 6dB below the appropriate limits of 65dB.

6. Transmitter Frequency Error
6.1 Test purpose
To verify that MS and HS carrier frequency error do not exceed ±1.25KHz for 500MHz band and ±1.2KHz for 800MHz band to ensure without any interference.
6.2 Conformance requirement
500MHz band Trunked Radio Terminal: ±1.25KHz.
800MHz band Trunked Radio Terminal: ±1.2KHz.
6.3 Method of measurement
The MS or HS should be switched-on and set in a transmitting (carrier-on) mode. The output of the transmitter shall be connected to a frequency counter by a 50Ωpower attenuator, to measure the transmit frequency accuracy , including the effects of noise if any, harmonics and intermodulation products which may be generated in the transmitter.
6.4 Test requirement
The test requirements are given in Annex A, and measurement shall be set up as Annex C.

7. Duplex Spacing
7.1 Test purpose
To verify that MS or HS shall be carried out to ensure satisfactory duplex operation within the allocated frequency band.
7.2 Conformance requirement
The Applicant shall submit the Declaration of Conformity of duplex separation of 16.5MHz for 500MHz; or of 45MHz for 800MHz.
7.3 Method of measurement
The Applicant shall submit the Declaration of Conformity.
7.4 Test requirement
The Applicant shall submit the Declaration of Conformity.

8. Channel Spacing
8.1 Test purpose
To verify that MS or HS is in the allocated channel to ensure conformity with channel space of 12.5KHz or 25KHz without interference to the adjacent channels.
8.2 Conformance requirement
The applicant shall submit the Declaration of Conformity of an allocated channel with the spacing of 12.5KHz or 25KHz.
8.3 Method of measurement
The applicant shall submit the Declaration of Conformity.
8.4 Test requirement
The applicant shall submit the Declaration of Conformity.

9. Output RF Spectrum