Part 15 Beacons

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= Overview = There are three bands available to hobbyists for [[Part 15]] transmitters: * 160 - 190 kHz * 13553 - 13567 kHz (often referred to as 13560 kHz, 13.56 MHz or 22 meters, shared with [[ISM]]) * 26960 - 27280 kHz ([[11_meter|11 meters]], shared with [[CB]], [[Remote_Control|RC]], [[HF_pagers|data links/telemetry]] and ISM from 26957 - 27283 kHz) * 49820 - 49900 kHz (49.82 - 49.90 MHz) == 160-190 kHz Part 15 Beacons == * 167.180 LC Sacramento CA * 180.580 6R El Dorado Hills CA * 181.818 JH Florence SC * 182.448 R Keeler CA * 183.500 WD2XFJ Burbank CA * 185.100 22A Baraga MI * 185.185 SIW Oswego IL * 185.290 KT Oswego KS * 185.297 TAG Raymond ME * 185.298 CV South Coffeyville OK * 185.299 SIW Oswego IL * 185.303 SJ East Haven CT * 185.650 WE2XEB Penn Yan NY * 186.204 MLS Massilon OH * 187.015 J La Crescenta CA * 187.507 WI Aiken SC * 188.830 EAR Saltford, ON == 13560 kHz Part 15 Beacons == Frequencies are often variable *13554.000 AZ Oro Valley AZ *13555.380 USC Spartanburg SC *13555.414 TAG Holden MA *13555.420 JIM Dallas TX *13555.430 SIW Elgin IL *13555.440 SIW Elgin IL *13555.450 MP London ON *13555.462 EH East Haven CT *13555.465 XR Friendsville TN *13555.472 7P Ajo AZ *13555.484 BC Spring Creek NV *13555.500 NC Stanfield NC *13555.528 EDJ Monroe GA *13555.600 MTI Stone Mountain GA *13555.920 WV Richwood, WV *13555.98 TSN *13556.20 NOM NOM (not 24/7) *13556.600 OH Findlay OH *13557.50 PBJ Tracey City TN *13557.800 PLM [UNKNOWN] *13558.2 PVC *13558.510 AJO Ajo AZ *13558.98 NHVT *13561.100 17331PA Hanover, PA *13562.080 NDB *13562.35 IPA Sandwich,MA *13562.950 SZX Macomb IL *13563.000 RR *13563.55 PCO Colorado *13564.280 T Sun City CA *13561.55 WMD (not 24/7) *13562.80 GNK Madison WI *13564.20 RF Grid EM96 NC *13564.72 ABBY *13565.04 K6FRC Patterson CA *13566.07 KAH *13566.20 AMA Hamilton ON *13566.22 WAS North Carolina *13566.28 RVA Richmond, VA *13566.50 ODX == 26960-27280 kHz Part 15 Beacons == None reported, see the [[11_meter#11_meter_Beacon_Frequencies_11m_CB_Beacon_Channels_11m_Beacon_Bands|11 meter / 27 MHz CB beacons page]], [[High_Frequency_Beacon#Reported_High_Frequency_Beacons|HF beacons]] and the 26-28 MHz [[Remote_Control|remote control]] pages for additional information on beacons in this band. Numerous Part 15 devices operating in this band may act as ''de facto'' beacons. == 22 meter band beacon kit == This beacon includes a custom programmed micro controller which sends the CW ID. Available from: [https://blackcatsystems.com/rf-products/22_meter_band_part_15_beacon_kit.html https://blackcatsystems.com/rf-products/22_meter_band_part_15_beacon_kit.html] https://blackcatsystems.com/rf-products/pics/beacon/beacon_finished.jpg == FCC Regulations == === 160 - 190 kHz === 15.217 Operation in the band 160-190 kHz. (a) The total input power to the final radio frequency stage (exclusive of filament or heater power) shall not exceed one watt. (b) The total length of the transmission line, antenna, and ground lead (if used) shall not exceed 15 meters. (c) All emissions below 160 kHz or above 190 kHz shall be attenuated at least 20 dB below the level of the unmodulated carrier. Determination of compliance with the 20 dB attenuation specification may be based on measurements at the intentional radiator's antenna output terminal unless the intentional radiator uses a permanently attached antenna, in which case compliance shall be demonstrated by measuring the radiated emissions. === 13560 kHz === 15.225 Operation within the band 13.110-14.010 MHz. (a) The field strength of any emissions within the band 13.553-13.567 MHz shall not exceed 15,848 microvolts/meter at 30 meters. (b) Within the bands 13.410-13.553 MHz and 13.567-13.710 MHz, the field strength of any emissions shall not exceed 334 microvolts/meter at 30 meters. (c) Within the bands 13.110-13.410 MHz and 13.710-14.010 MHz the field strength of any emissions shall not exceed 106 microvolts/meter at 30 meters. (d) The field strength of any emissions appearing outside of the 13.110-14.010 MHz band shall not exceed the general radiated emission limits in § 15.209. (e) The frequency tolerance of the carrier signal shall be maintained within ±0.01% of the operating frequency over a temperature variation of −20 degrees to +50 degrees C at normal supply voltage, and for a variation in the primary supply voltage from 85% to 115% of the rated supply voltage at a temperature of 20 degrees C. For battery operated equipment, the equipment tests shall be performed using a new battery. (f) In the case of radio frequency powered tags designed to operate with a device authorized under this section, the tag may be approved with the device or be considered as a separate device subject to its own authorization. Powered tags approved with a device under a single application shall be labeled with the same identification number as the device. === 26960 - 27280 kHz === 15.227 Operation within the band 26.96-27.28 MHz. (a) The field strength of any emission within this band shall not exceed 10,000 microvolts/meter at 3 meters. The emission limit in this paragraph is based on measurement instrumentation employing an average detector. The provisions in § 15.35 for limiting peak emissions apply. (b) The field strength of any emissions which appear outside of this band shall not exceed the general radiated emission limits in § 15.209. === 49.82 MHz - 49.90 MHz (49 MHz band) === See also: [[Remote_Control#49_MHz_RC_Frequencies|Remote Control - 49 MHz R/C Frequencies]] and the [[Part_15#15.235_Operation_within_the_band_49.82-49.90_MHz.|Part 15]] page. 15.235 Operation within the band 49.82-49.90 MHz. (a) The field strength of any emission within this band shall not exceed 10,000 microvolts/meter at 3 meters. The emission limit in this paragraph is based on measurement instrumentation employing an average detector. The provisions in § 15.35 for limiting peak emissions apply. (b) The field strength of any emissions appearing between the band edges and up to 10 kHz above and below the band edges shall be attenuated at least 26 dB below the level of the unmodulated carrier or to the general limits in § 15.209, whichever permits the higher emission levels. The field strength of any emissions removed by more than 10 kHz from the band edges shall not exceed the general radiated emission limits in § 15.209. All signals exceeding 20 microvolts/meter at 3 meters shall be reported in the application for certification. (c) For a home-built intentional radiator, as defined in § 15.23(a), operating within the band 49.82-49.90 MHz, the following standards may be employed: (1) The RF carrier and modulation products shall be maintained within the band 49.82-49.90 MHz. (2) The total input power to the device measured at the battery or the power line terminals shall not exceed 100 milliwatts under any condition of modulation. (3) The antenna shall be a single element, one meter or less in length, permanently mounted on the enclosure containing the device. (4) Emissions outside of this band shall be attenuated at least 20 dB below the level of the unmodulated carrier. (5) The regulations contained in § 15.23 of this part apply to intentional radiators constructed under the provisions of this paragraph. (d) Cordless telephones are not permitted to operate under the provisions of this section. See Part 15 subsection regarding analog 49 MHz cordless phones: [[Part_15#15.233_Operation_within_the_bands_43.71-44.49_MHz.2C_46.60-46.98_MHz.2C_48.75-49.51_MHz_and_49.66-50.0_MHz.|15.233]]. UNDERSTANDING THE FCC REGULATIONS FOR LOW-POWER, NON-LICENSED TRANSMITTERS http://transition.fcc.gov/Bureaus/Engineering_Technology/Documents/bulletins/oet63/oet63rev.pdf ==See also== * [[Radio beacons|Radio beacons - general topic]] * [[Radio propagation beacon|Radio propagation beacons]] * [[LowFER]] * [[HiFER]] * [[High Frequency Beacon]] * [[Part_15_Beacons|Part 15 Beacons]] * [[Letter beacon]] * [[Fishnet beacon]] [[Category:Beacons]] [[Category: VHF/UHF Radio Services]]

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