---
kind: "section"
citation: "47 C.F.R. § 74.795"
title: "47"
number: "74.795"
heading: "Low power TV and TV translator transmission system facilities."
url: "https://uscodex.org/cfr/47/74.795"
---

# §74.795. Low power TV and TV translator transmission system facilities.

- (a) A low power TV or TV translator station shall operate with a transmitter that is either certificated for licensing based on the following provisions or has been modified for digital operation pursuant to [§ 74.796](/cfr/47/74.796.md).
- (b) The following requirements must be met before low power TV and TV translator transmitter will be certificated by the FCC:
  - (1) The transmitter shall be designed to produce digital television signals that can be satisfactorily viewed on consumer receiving equipment based on the digital broadcast television transmission standard in [§ 73.682(d)](/cfr/47/73.682.md?p=d) of this chapter;
  - (2) Emissions on frequencies outside the authorized channel, measured at the output terminals of the transmitter (including any filters that may be employed), shall meet the requirements of [§ 74.794](/cfr/47/74.794.md), as applicable;
  - (3) The transmitter shall be equipped to display the digital power output (i.e., average power over a 6 MHz channel) and shall be designed to prevent the power output from exceeding the maximum rated power output under any condition;
  - (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;
  - (5) The transmitter shall be equipped with suitable meters and jacks so that appropriate voltage and current measurements may be made while the transmitter is in operation; and
  - (6) The apparatus must be equipped with automatic controls that will place it in a non-radiating condition when no signal is being received on the input channel, either due to absence of a transmitted signal or failure of the receiving portion of the facilities used for rebroadcasting the signal of another station. The automatic control may include a time delay feature to prevent interruptions caused by fading or other momentary failures of the incoming signal; and
  - (7) Wiring, shielding, and construction shall be in accordance with accepted principles of good engineering practice.
- (c) **The following additional requirements apply to digital heterodyne translators—**
  - (1) The maximum rated power output (digital average power over a 6 MHz channel) shall not exceed 30 watts for transmitters operating on channels 14-51 and 3 watts for transmitters operating on channels 2-13; and
  - (2) The transmitter shall contain circuits which will maintain the digital average power output constant within 1 dB when the strength of the input signal is varied over a range of 30 dB.
- (d) Certification will be granted only upon a satisfactory showing that the transmitter is capable of meeting the requirements of [paragraph (b)](#b) of this section, pursuant to the procedures described in [§ 74.750(e)](/cfr/47/74.750.md?p=e).

## Notes

### Amendments

[69 FR 69336, Nov. 29, 2004, as amended at 86 FR 66214, Nov. 22, 2021; 87 FR 58206, Sept. 23, 2022; 88 FR 30671, May 12, 2023]

### Authority

Authority: 47 U.S.C. 154, 302a, 303, 307, 309, 310, 325, 336 and 554.

### Amendments

[69 FR 69336, Nov. 29, 2004, as amended at 86 FR 66214, Nov. 22, 2021; 87 FR 58206, Sept. 23, 2022; 88 FR 30671, May 12, 2023]