1、STD CEPT TIR 25-07 E-ENGL 1773 II 2326414 0014858 7T5 T/R 25-07 E Page 1 Distribution B Recommendation T/R 25-07 (Lecce 1989, revised in Athens 1990 and in Madrid 1992) FREQUENCY COORDINATION FOR THE EUROPEAN RADIO MESSAGE SYSTEM (ERMES) Recommendation proposed by the Working Group “Frequency Manage
2、ment“ (FM) Text of the Recommendation ndopted by the “European Radiocommunications Committee“ (ERC): “The European Conference of Postal and Telecommunications Administrations, considering a) b) c) d) e) that the ERMES system being developed by ETSI will require frequency spectrum for the implementat
3、ion of the system by 1993, and also for the expected expansion of the system, that the frequency band 169.4125-169.8125 MHz and edges) has been chosen as the band from which frequencies are selected for the implementation and expansion of the system, that the frequency band in question is heavily us
4、ed by other land mobile services in ail the CEPT Member Countries and in neighbouring countries outside CEFT, particularly m the lower 200 kHz range, that the channel requirement for the implementation and expansion of the system will differ between countries, that in border areas between more than
5、two countries and in the most congested areas the tra&c load will probably require up to 16 channels, noting 1. that the ERMES system will be developed based on frequency agile receivers. For this reason and in order to cater for more than one service provider in some countries, it is no longer nece
6、ssaq to provide common European channels, 2. that in the light of the e.r.p. and protection required for the ERMES system compared with the parameters for other land mobile applications in the same band, special coordination arrangements are necessary, 3. that in parts of Europe where border coordin
7、ation for ERMES channels is very difficult, the establishment of a multilateral channel plan will ease the implementation and expansion of the ERMES system, 4. that in some countries only the band 169.6125 to 169.8125 MHz will be used for the introduction of the ERMES system in accordance with marke
8、t demands, 5. that in certain parts of Europe the utilisation of the ERMES channels is based on the multilateral channel plan attached in Annex 5, unless otherwise bilaterally agreed between the Administrations concerned, recommends 1. as fiom 1.1.1993 frequencies from the band between 169.4125 and
9、169.8125 MHz shali be made available for the introduction of the ERMES system in CEFT countries, 2. for the ease of frequency coordination between neighbouring countries the ERMES channels shall be categonsed in the border region of a country as follows: categorya) ERMES channels which are usable on
10、 a preferential basis one year after the neighbouring countries have been informed: These channels only need coordination if the field strength from ERMES to neighbouring countries exceeds at the border line: + 52 dBpV/m (50% of locations/50% of the. 3 m antenna height) or + 12 dBpV/m (50% of locati
11、ons/lO% of time. 3 m antenna height) in case that the introduction shall take place within one year of the concerned Administrations being informed, - STDmCEPT TIR 25-07 E-ENGL 1993 232b414 0014859 b31 W T/R 25-07 Page 2 category b) ERMES channels which are usable on a preferential basis two years a
12、fter the neighbouring counmes have been informed: These channels only need coordination if the interfering field strengih fiom ERMES to neighbouring countries concemed exceeds at the border line: + 52 dBpVlm (50% of locations/50% of time. 3 m antenna height) or + 12 dBpVlm (50% of locations/lO% of t
13、ime. 3 m antenna height) in case that the introduction shall take place Within two years of the concerned Administrations being informed, ERMES channels which are not usable on a preferential basis in border regions of a country: These channels need coordination if the interfering field strength fro
14、m ERMES to neighbouring countries concerned exceeds at the border line: + 32 dBhVlm (50% of locations/lO% of time. 3 m antenna height) to countries where the channel is used by ERMES +12 d33pVhn (50% of locations/lO% of he. 3 m antenna height) to countries where the channel is used by other land mob
15、ile applications than ERMES, 3. that Administrations may agree on a bilateral basis on other introduction procedures for ERMES channels, 4. that propagation criteria as described in Annex 2 are used for caiculating the field strength, 5. that in coordinating fiequencies for the ERMES system the tech
16、nical criteria as given in Annex 1 are used and that the following procedure is applied: 5.1. 5.2. 5.3. 5.4. 5.5. when requesting coordination the relevant characte.ristics of the base siation (see Annex 3) shali be forwarded to the Administration affected, the Administration affected shall evaluate
17、 the request for coordination and shall within 30 days notify the result of the evahiation to the Administration requesting coordination, if in the course of the coordination procedure the Administration affected requires additional information it may request such information, if no reply is receive
18、d by the Administration requesting coordination within 30 days it may send a reminder to the Adminisixation affected. An Administration not having responded within 30 days shall be deemed to have given its consent, and the frequency may be put into use with characteristics given in the request for c
19、oordination, the periods mentioned above may be extended by common consent.“ STDmCEPT TIR 25-07 E-ENGL 1993 W 232b414 00148bO 353 a T/R 25-07 E Page 3 Annex 1 TECHNICAL PARAMETER FOR COORDINATION OF ERMES STATIONS 1. Cher spacing: 25 kHz 2. Centre frequency of each channel 169.425 MHz + 11225 kHz (n
20、= 0,l . 15) 3. Minimum field strength to be protected 52 dB(pV/m) (50% of locations, 50% of time) 4. Protection ratio: 20 dB 5. Propagation curve: see Annex 2 6. Antenna height for receivmg stations: 3 m above ground * FOT a frequency offset between wanted and interfering signai the field strength v
21、alue will be increased according to the table contained in Annex 4. STD=CEPT T/R 25-07 E-ENGL 1993 232b414 0014Bhl 29T R TIR 25-07 E Page 5 Annex 2 PROPAGATION CRITERIA FOR CALCULATING INTERFACING FIELD STRENGTH Propagation curves The mes attached to this annex should be used to deinnine the field s
22、trength. For special cases including sea path propagation, Administrations may agree upon other curves. Effective antenna height The effective antenna height used to detexmine interfering field strength is the dBerence between the physical height of the antenna and the average height of the tenain.
23、The evaluation of the average height of the terrain may be subject to agreement. STD-CEPT TIR 25-07 E-ENGL 1993 W 2326434 0034862 12b = T/R 25-07 Page 6 TIR 25-07 E Page 7 STDmCEPT TIR 25-07 E-ENGL 1993 2326434 0034864 TT m TIR 25-07 Page 8 Annex 3 COORDINATION OF FREQUENCY ASSIGNMENTS FOR STATIONS
24、IN THE VHFMIF LAND MOBILE SERVICE Column 1A 1z 6A 6B 62 2c 22 4A 4B 4c 4D 42 IA 8B 1 SB2 1OB 9A 9z 9D 9G 9Y 9x 5A 5c 5F 1Y 1 32 Assigned frequency (kHz, MHz or GHz) Frequency category Class of station, see table 6All Type of service, see table 6B 1 Category of use Date of entry into service Date of
25、coordination completed Name of transmitter station or utilization zone1 (LCL is forbidden) Country, see table 4A11 Geographkal coordinates (longitude and latitude in degrees, minutes and seconds) of - the transmitter station - the centre of emissions Radius of zone of coverage (km) Height above sea
26、level (m) Designation of emission, see art. 4 and App. 62 Effective radiated power, ezp. (dBW) of the base station Effective radiated power, ex.p. (dBW) of the mobile station Operation hours (the following abbreviations should be used: HJ, HN, HT, HX) Maximurn equivalent height (m) according to agre
27、ement between Administrations, and azimuth in the direction to the neighbouring country affected, (12 Merent equivalent heights within 12 predeteded directions, O“, 30, 60, ec.) Polarization (see table 9Dll) (without code L999) Gain in main direction (dB) Height above ground level (m) Type of antenn
28、a Name of the receiving station or utilization zone, see column 4A Geographical coordinates (longitude and latitude in degrees, minutes and seconds) of - the receiving station - the centre of utilization zone Radius of zone of reception (km), obligatory for a mobile receiving station Reception frequ
29、ency (kHz, MHz or GHz) Remarks Azimuth (ND ifomnidirectional) 13Y Status of the coordination The notes are referring to: The preface of the International Frequency List (TFL). The Radio Regulations. STD-CEPT T/R 25-07 E-ENGL 1793 W 232b4L4 00148b5 935 W TR 25-07 E Page 9 STD-CEPT T/R 25-07 E-ENGL L9
30、93 m 2326434 003486b 873 = TIR 2547 Page 10 i I. .-., .I 5 c. i3 2 $, :$ .$ $ ri: . c TIR 2507 E Page 11 Annex 5 MULTILATERAL CHANNEL AGREEMENT The following Administrations have formaiiy agreed by September 1992: Austria Belgium Cyprus Czech and Slovak Federal Republic France Germany Hungas. IdY Lu
31、xembourg Netherlands Romania Switzerland STD=CEPT TIR 25-07 E-ENGL 1993 D 2326414 0014868 644 T/R 2547 Page 12 STD-CEPT T/R 25-07 E-ENGL 1993 m 2326414 0014869 580 W T/R 25-07 E Page 13 .-._-. . _,.? . UAB rm 7ab7 6 P* 33 . -.- . _xI1_ . ._ ,.A . . . -_ - - ,. - . .,- - uu.“,.-.-.,. . -.- ._.-.-_.I. -_. T/R 25-07 Page 14 2326414 0014145 770 W HOL HRV Tilt 25-07 Frequency coordination for the European Radio Message System (ERMES) accoding to Vienna agreement instead of Annex 3 Yes Planned I Yes IRL Yes ISL Yes LIE Yes
