Interference to DTV reception from FM radio signals

Author

Rhodes, Charles W.

Volume

56

Issue

1

fYear

2010

fDate

2/1/2010 12:00:00 AM

Firstpage

18

Lastpage

22

Abstract

Interference to DTV reception from signals in the 88-108 MHz FM broadcast band has been observed since the end of analog TV broadcasting in June, 2009. This interference is generated in the front-end (tuner) of the affected receiver. This paper describes the non-linear mechanisms in the receiver by which FMI to DTV reception takes place. The author has tested 15 models of NTIA approved DTV down-converters measuring the increase in DTV received signal power required as a function of the power of local off-air FM signals in his laboratory. He has also tested "amplified indoor antennas" and found their performance was seriously impaired by FMI. This work was carried out as unsponsored research.

Keywords

digital television; indoor radio; radio broadcasting; radiofrequency interference; television antennas; television reception; DTV reception; FM broadcast band; FM radio broadcasting; FM radio signals; amplified indoor antennas; analog TV broadcasting; frequency 88 MHz to 108 MHz; interference; Digital TV; Polarization; Power system harmonics; Radio broadcasting; Radio transmitters; Receivers; TV broadcasting; TV interference; Testing; Tuners; 2nd and 3rd order non-linearity; Inter-modulation;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/TCE.2010.5439120

Filename

5439120