11 meter

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The 11 meter band is used by both [[CB]] radio, as well as [[CB|freeband]] unlicensed hobbyists, [[Community_Audio_Distribution_Service|Church radio broadcasts in Ireland and elsewhere in Europe]], the military, [[HF_pagers|data links, buoys, fishnet tracking systems, pagers and other non-voice purposes]].
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The 11 meter band is used by both [[CB]] radio, as well as [[CB|freeband]] unlicensed hobbyists, [[Community_Audio_Distribution_Service|Church radio broadcasts in Ireland and elsewhere in Europe]], the [[Fixed/Mobile_bands|military]], [[HF_pagers|data links, buoys, fishnet tracking systems, pagers and other non-voice purposes]].
11 meters is often defined as 25-28 MHz / 25000-28000 kHz or 26-28 MHz / 26000-28000 kHz.  It may also refer to the basically never-used 11 meter shortwave broadcast band 25670 kHz to 26100 kHz or 25.67 MHz to 26.1 MHz.  [[CB#Origins_and_Historical_Babble_-_1950s_and_beyond|The original 11 meter amateur radio allocation was 26.96 MHz to 27.23 MHz and it was from this that the original Class D CB service was born]].
11 meters is often defined as 25-28 MHz / 25000-28000 kHz or 26-28 MHz / 26000-28000 kHz.  It may also refer to the basically never-used 11 meter shortwave broadcast band 25670 kHz to 26100 kHz or 25.67 MHz to 26.1 MHz.  [[CB#Origins_and_Historical_Babble_-_1950s_and_beyond|The original 11 meter amateur radio allocation was 26.96 MHz to 27.23 MHz and it was from this that the original Class D CB service was born]].
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11 meter is often used by freebanders or CB operators using the "freeband" frequencies from between 25 MHz and CB channel 1 (26.965 MHz) and CB channel 40 (27.405 MHz) and the bottom edge of the 10 meter amateur band (28.000 MHz).  Common freeband frequencies include:
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*'''25.615-26.055 MHz''' - Band A - often used by taxi cabs and trucking companies (AM mode in the Americas, AM or FM elsewhere)
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*25.835 MHz AM - CB channel 19 "down three bands" - truckers are often heard here
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*'''26.065-26.505 MHz''' - Band B - often used by taxi cabs, trucking companies and hunting clubs
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*26.225 MHz USB - Latin American SSB activity
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*26.285 MHz USB - 26 MHz international calling frequency (commonly used in Europe)
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*26.285 MHz AM - CB channel 19 "down two bands" - truckers are often heard here
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*26.305 MHz AM - truckers, often heard in North America during band openings
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*26.385 MHz AM - truckers, taxis, etc.
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*26.405 MHz AM - another commonly active frequency
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*'''26.515-26.955 MHz''' - Band C - "low band" or "lowers" all sorts of users, AM in the Americas, mixture of AM and FM elsewhere
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*26.515 MHz AM - active in southern USA
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*26.555 MHz LSB - very active in Mexico and Central/South America (and Caribbean)
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*26.585 MHz AM - Mexican trucker channel, often very busy
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*26.605 MHz AM - alternate to 26.585 MHz (see also, 26.575 MHz, 26.595 MHz)
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*26.705 MHz AM - Puerto Rico, Florida and other Caribbean AM stations, often extremely powerful
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*26.715 MHz AM - alternate to 26.705 MHz
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*26.725 MHz AM - alternate to 26.705 MHz and 26.715 MHz
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*26.735 MHz AM - CB channel 19 "down one band" - truckers are often heard here (see also 27.635 MHz)
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*26.755 MHz AM - Often active in southern USA + every 10 kHz to 26.955 MHz
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*26.885 MHz AM - alternate to 26.915 MHz, others
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*26.905 MHz AM - alternate to 26.915 MHz, others
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*26.915 MHz AM - Big radios USA "915" channel 36 down one band, AM DX channel
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*'''26.965-27.405 MHz''' - Band D - legal [[CB]] band - "mid band", "FCC band" or "CEPT" band
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*27.405-27.855 MHz - Band E - "high band" or "uppers", mixture of SSB, AM and FM
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*27.555 MHz USB - international 11 meter DX calling frequency
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*27.635 MHz USB - digital modes found here in Europe (ROS, PSK31), see also 27.235 MHz and 27.245 MHz
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*27.635 MHz AM - CB channel 19 "up one band" - truckers are often heard here (see also 26.735 MHz)
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*27.700 MHz USB - international 11 meter SSTV frequency
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*27.735 MHz USB - international 11 meter SSTV frequency (alternate, also digital SSTV)

Revision as of 20:08, 10 January 2019

The 11 meter band is used by both CB radio, as well as freeband unlicensed hobbyists, Church radio broadcasts in Ireland and elsewhere in Europe, the military, data links, buoys, fishnet tracking systems, pagers and other non-voice purposes.

11 meters is often defined as 25-28 MHz / 25000-28000 kHz or 26-28 MHz / 26000-28000 kHz. It may also refer to the basically never-used 11 meter shortwave broadcast band 25670 kHz to 26100 kHz or 25.67 MHz to 26.1 MHz. The original 11 meter amateur radio allocation was 26.96 MHz to 27.23 MHz and it was from this that the original Class D CB service was born.

11 meter is often used by freebanders or CB operators using the "freeband" frequencies from between 25 MHz and CB channel 1 (26.965 MHz) and CB channel 40 (27.405 MHz) and the bottom edge of the 10 meter amateur band (28.000 MHz). Common freeband frequencies include:

  • 25.615-26.055 MHz - Band A - often used by taxi cabs and trucking companies (AM mode in the Americas, AM or FM elsewhere)
  • 25.835 MHz AM - CB channel 19 "down three bands" - truckers are often heard here
  • 26.065-26.505 MHz - Band B - often used by taxi cabs, trucking companies and hunting clubs
  • 26.225 MHz USB - Latin American SSB activity
  • 26.285 MHz USB - 26 MHz international calling frequency (commonly used in Europe)
  • 26.285 MHz AM - CB channel 19 "down two bands" - truckers are often heard here
  • 26.305 MHz AM - truckers, often heard in North America during band openings
  • 26.385 MHz AM - truckers, taxis, etc.
  • 26.405 MHz AM - another commonly active frequency
  • 26.515-26.955 MHz - Band C - "low band" or "lowers" all sorts of users, AM in the Americas, mixture of AM and FM elsewhere
  • 26.515 MHz AM - active in southern USA
  • 26.555 MHz LSB - very active in Mexico and Central/South America (and Caribbean)
  • 26.585 MHz AM - Mexican trucker channel, often very busy
  • 26.605 MHz AM - alternate to 26.585 MHz (see also, 26.575 MHz, 26.595 MHz)
  • 26.705 MHz AM - Puerto Rico, Florida and other Caribbean AM stations, often extremely powerful
  • 26.715 MHz AM - alternate to 26.705 MHz
  • 26.725 MHz AM - alternate to 26.705 MHz and 26.715 MHz
  • 26.735 MHz AM - CB channel 19 "down one band" - truckers are often heard here (see also 27.635 MHz)
  • 26.755 MHz AM - Often active in southern USA + every 10 kHz to 26.955 MHz
  • 26.885 MHz AM - alternate to 26.915 MHz, others
  • 26.905 MHz AM - alternate to 26.915 MHz, others
  • 26.915 MHz AM - Big radios USA "915" channel 36 down one band, AM DX channel
  • 26.965-27.405 MHz - Band D - legal CB band - "mid band", "FCC band" or "CEPT" band
  • 27.405-27.855 MHz - Band E - "high band" or "uppers", mixture of SSB, AM and FM
  • 27.555 MHz USB - international 11 meter DX calling frequency
  • 27.635 MHz USB - digital modes found here in Europe (ROS, PSK31), see also 27.235 MHz and 27.245 MHz
  • 27.635 MHz AM - CB channel 19 "up one band" - truckers are often heard here (see also 26.735 MHz)
  • 27.700 MHz USB - international 11 meter SSTV frequency
  • 27.735 MHz USB - international 11 meter SSTV frequency (alternate, also digital SSTV)
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