Valo Analytica

SpectrumWiki

Radio spectrum allocations

Look up a frequency or a range.

Examples: 88.5 MHz, 1350–1430 MHz, 2.4 GHz

150.049999 MHz (150,049,999 Hz)

U.S. Federal Government Allocations

149.9 – 150.05 MHz

MOBILE-SATELLITE (Earth-to-space) US319 US320

RADIONAVIGATION-SATELLITE

Footnotes

  • 5.209   The use of the bands 137-138 MHz, 148-150.05 MHz, 399.9-400.05 MHz, 400.15-401 MHz, 454 456 MHz and 459-460 MHz by the mobile-satellite service is limited to non geostationary-satellite systems. (WRC 97)

  • 5.220   The use of the frequency bands 149.9-150.05 MHz and 399.9-400.05 MHz by the mobile-satellite service is subject to coordination under No. 9.11A. (WRC-15)

  • US319   In the bands 137-138 MHz, 148-149.9 MHz, 149.9-150.05 MHz, 399.9-400.05 MHz, 400.15-401 MHz, 1610-1626.5 MHz, and 2483.5-2500 MHz, Federal stations in the mobile-satellite service shall be limited to earth stations operating with non-Federal space stations.

  • US320   The use of the bands 137-138 MHz, 148-150.05 MHz, 399.9-400.05 MHz, and 400.15-401 MHz by the mobile-satellite service is limited to non-voice, non-geostationary satellite systems and may include satellite links between land earth stations at fixed locations.

Wiki entries

Orbcomm LEO Satellite Constellation

Current Use 148–150.05 MHz Orbcomm uplink
Orbcomm is a constellation of 31 low-Earth orbit (LEO) satellites that provide messaging and machine-to-machine communications, among other functions, in the VHF band.

Please see the references for additional business and technical information regarding the Orbcomm system.

FCC Narrowbanding Mandate

Current Use 150–174 MHz FCC Narrowband Mandate for PLMR and Industrial/Business Radio Pool systems
The FCC has mandated that all Private Land Mobile Radio (PLMR) and Industrial/Business Radio Pool systems operating in the 150-174 and 421-512 MHz bands must operate using a channel bandwidth of no more than 12.5 kHz, or "a technology that achieves the narrowband equivalent of one channel per 12.5 kHz of channel bandwidth (voice) or 4800 bits per second per 6.25 kHz (data) if the bandwidth for transmissions specified in the modification application is greater than 12.5 kHz."

The deadline for narrowbanding is January 1, 2013. Prior to this date, systems in these bands were allowed up to 25 kHz channel bandwidth.

Narrowbanding of the 470-512 MHz portion ("T-band") has been put on hold by the FCC. Congressional action in the Middle Class Tax Relief and Jobs Creation Act mandated that this sub-band be cleared of all mobile systems in light of the TV band incentive auction and the eventual creation of the nationwide public safety broadband network.