11.08.2004 12:00 AM
FCC Digital LPTV Report and Order Erratum
The FCC issued an Erratum to Digital LPTV Report and Order (FCC 04-220) released September 30. Requirements to protect against 2nd and 3rd harmonic emissions interference to GPS and other radio navigation satellite services only apply to digital LPTV and TV translator stations that operate on TV channels where harmonics would fall into the frequency bands used by these services.

Paragraph 24 of Appendix B, Section 74.794(b) was corrected to read: "(b) In addition to meeting the emission attenuation requirements of the simple or stringent mask (including attenuation of radio frequency harmonics), digital low power TV and TV translator stations authorized to operate on TV channels 22-24, (518-536 MHz), 32-36 (578-608 MHz), 38 (614-620 MHz), and 65-69 (776-806 MHz) must provide specific out of band protection to Radio Navigation Satellite Services in the bands: L5 (1164-1215 MHz); L2 (1215-1240 MHz) and L1 (1559-1610 MHz)."

The rule section dealing with frequency stability, Section 74.795(b)(4) was changed to read: "(4) When subjected to variations in ambient temperature between 0 and 40 degrees Centigrade and variations in power main voltage between 85% and 115% of the rated power supply voltage, the frequency stability of the local oscillator in the RF channel upconverter shall be maintained within 10 kHz of the nominal value."

For more information, refer to the Erratum.

Post New Comment
If you are already a member, or would like to receive email alerts as new comments are
made, please login or register.

Enter the code shown above:

(Note: If you cannot read the numbers in the above
image, reload the page to generate a new one.)

No Comments Found

Tuesday 03:07 PM
WMUR-TV Says FAA Drone Rules Preclude ENG
The FAA’s current rules and proposed ban on flight over people, requirement of visual line of sight and restriction on nighttime flying, effectively prohibit broadcasters from using UAS for newsgathering. ~ WMUR-TV General Manager Jeff Bartlett

Featured Articles
Product News
Discover TV Technology