SN EN 60244-14 : 1997
Current
The latest, up-to-date edition.
METHODS OF MEASUREMENT FOR RADIO TRANSMITTERS - PART 14: EXTERNAL INTERMODULATION PRODUCTS CAUSED BY TWO OR MORE TRANSMITTERS USING THE SAME OR ADJACENT ANTENNAS
12-01-2013
INTRODUCTION<br>1 Scope<br>2 Normative references<br>3 Definitions<br>4 General measuring procedure<br> 4.1 Introduction<br> 4.2 Measurements in transmitter feeders<br> 4.3 Precautions to be observed when making<br> measurements<br> 4.4 Off-air measurements<br> 4.5 Special precautions to be observed when making<br> off-air measurements<br>5 Methods of measurement for specific transmitter <br> service or configuration<br> 5.1 Measurements for VHF radio transmitters<br> 5.2 Measurements for adjacent antennas<br> 5.3 Measurements for a common antenna<br>6 Presentation of the results<br>Figures<br>1 Measurements in transmitter feeders<br>2 Off-air measurements<br>3 General arrangement for transmitters feeding separate<br> antennas<br>4 General arrangement for transmitters feeding a<br> single antenna<br>5 Alternative arrangement for transmitters feeding a<br> single antenna<br>6 Typical HF station configurations<br>Annexes<br>A Theoretical notes<br>B Calculation of radiated levels of intermodulation<br> products (q = 1)<br>C Maximum permitted power level of spurious emissions
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