1. Czech Telecommunication Office Petr Holec MPX power and Peak deviation of FM Transmitters in Czech Republic

2. Copenhagen 2013 / PT22 1 Index a)MPX power issue in PT 22, b)Legal situation in CZE, c)Measurement campaigns 2012, 2013 d)Results, comparison 2012/2013

3. 2 MPX power and peak deviation 2007 Timisoara meeting - first discussions concerning MPX and Peak frequency deviation issue opened, 2007 Riga – first meas. campaign organized (HUN, AUT, GER, POR, CZE), Total of 546 Tx measured, (FM22(07)57), Several studies published in PT22 concerning influence of usage exceeding MPX power, Peak deviation and audio compression to Aeronautical service Co and adjacent channel of radio service specially on the edge of coverage area / state border. Copenhagen 2013 / PT22

4. 3 MPX power and peak deviation 2009 „MPX workshop“ Budapest (9 countries) investigated: Regulatory situation and enforcement practices in various countries, Methods and instruments used for measurement, Conclusion - General willingness to comply with limitations mentioned in ITU-R BS. 412-9, - Main reason in different MPX power levels is difference between national regulations. Copenhagen 2013 / PT22

5. 4 MPX power and peak deviation in CZE Till 2011 no limits are fixed neither in Czech law nor in License, In June 2011 CTO issued new revision of Frequency spectrum utilization plan (PV-P//06.2011-9), where stated (article 13, paragraph 4): Frequency Peak deviation ≤ +- 75 kHz (letter b), MPX power ≤ 0 dBr (letter c), „Broadcasting must be run under conditions ensuring compatibility with aeronautical navigation service“. Copenhagen 2013 / PT22

6. 5 MPX power and peak deviation in CZE Although the Frequency plan in question was released after prior correct public discussion (all objections have been settled), two groups of FM operators took action to Supreme Administrative Court (SAC) to cancel article 13, paragraph 4, letter c) – concerning MPX power, Two independent expert’s reports were elaborated for Court to help to decide, First final judicial decision delivered in May 2012 – request for MPX cancellation has been rejected. Copenhagen 2013 / PT22

7. 5 MPX power and peak deviation in CZE September 2012 - CTO sent to all FM operators: -Informal letter announcing ongoing measurement campaign since January 2013, -Guideline for Peak deviation and MPX power measurement (according to ITU-R SM.1268-2, REC CEPT/ERC 54-01), -No objection received. Time period till the end of 2012 was given to broadcasters to adjust all necessary on transmitters/studio site. Copenhagen 2013 / PT22

8. 6 MPX power and peak deviation in CZE 1. 1. 2013 CTO begun measurement campaign Basic parameters: Measurement is done in preference „from the air“ (where it is impossible to get correct signal from antenna or where there are objections from operator, then from TX output), Limits and measurement accuracy Peak frequency deviation ≤ +- 75 kHz Measurement uncertainty +- 2 kHz for (≤ 80 kHz) +- 5 kHz for (> 80 kHz) Temporary practical limit with regard to equipment used, evaluation SW and results of practical tests - maximum 3 % of samples can exceed +- 77 kHz per 15 min. (preferable length of measurement is 30 min) Copenhagen 2013 / PT22

9. 7 MPX power and peak deviation in CZE Limits and measurement accuracy MPX power ≤ 0 dBr Measurement uncertainty +- 0,2 dBr (- 2 < MPX < 2) +- 0,4 dBr (- 2 > MPX > 2) With regard to practice where during the modulation sequences with levels causing peak deviation close to +- 75 kHz limits cannot be excluded, temporary practical limit was set to MPX PEAK ≤ 1,5 dBr Maximum 10 % of samples can exceed +0,2 dBr per 15 min. (preferable measurement 30 min) Copenhagen 2013 / PT22

10. 8 MPX power and peak deviation in CZE MPX power measurement campaign – equipment ETL - R&S (Option K7, K110, K284), FM SPY – Media Engineering Copenhagen 2013 / PT22

11. 9 MPX power and peak deviation in CZE Total 727 FM transmitters operate in CZE, Till 31th March 2013 398 Tx have been measured, i.e. 54 %, To better demonstrate the improvement of today‘s situation, 123 measurements from 2011/2012 campaign were used for following comparison Copenhagen 2013 / PT22

12. 10 2012 situation - MPX of 123 Tx Copenhagen 2013 / PT22

13. 11 2013 situation - MPX of 398 Tx (54%) Copenhagen 2013 / PT22

14. 12 2012/2013 comparison for MPX ≤0,2 dBr (for maximum of 10% samples) Copenhagen 2013 / PT22

15. 13 2012/2013 comparison Frequency Peak Deviation Distribution) Copenhagen 2013 / PT22

16. 14 MPX power and peak deviation in CZE Actions, additional information Protocol is elaborated after each measurement and sent to operator for familiarization, Annex enclosed to Protocol contains all measured values and details, In case of exceeding the limits or other violation of License parameters, Appeal is sent to operator in addition (in line with Telecommunication Law), Within a time limit of 30 days operator is obliged to correct the fault and inform CTO, New measurement is made, Till the end of April no fine was given (all corrections were made within the time limit). Copenhagen 2013 / PT22

17. 15 Thank you for your attention Copenhagen 2013 / PT22