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-
- VLF/LF/MF/HF
-
- Low end High end Allocation
- --------- --------- --------------
- 9 kHz - 14 kHz Radio Navigation (OMEGA)
- 14 - 90 Various Services
- 90 - 110 Radiolocation (Loran C)
- 110 - 160 Military CW Stations
- 160 - 190 Fixed Service (Power Companies,GWEN) 1750 Meters
- FCC allows unlicenced transmissions under 1 watt
- 190 - 415 Nautical Radionavigation Beacons
- 415 - 510 Maritime Coastal (CW)
- (International calling and distress (CW) - 500kHz)
- 510 - 535 Aeronautical Radionavigation Beacons (AMTOR,NAVTEX)
- 525 - 1605 North American AM Broadcast Band
- 1605 - 1800 Fixed,mobile,radiolocation
- 1800 - 2000 Amateur 160 Meters
- 1900 - 2000 Radiolocation
- 2000 - 2300 Fixed,mobile,maritime
- (International calling + distress (USB) - 2182 kHz)
- 2300 - 2495 Tropical Band
- 2495 - 2850 Fixed,mobile
- 2850 - 3155 Aeronautical mobile (USB,CW,RTTY)
- 3155 - 3400 Fixed,mobile
- 3200 - 3400 International Broadcast 90 M (excluding N. Amer.)
- 3500 - 4000 Amateur 80 Meters
- 3900 - 4000 International Broadcast 75 M
- 4000 - 4063 Maritime Mobile
- 4063 - 4438 MARS (?) (CW,voice,RTTY,TOR,SITOR)
- 4438 - 4650 Various Allocations
- 4650 - 4750 Aeronautical Mobile
- 4750 - 5060 International Broadcast 60 M
- 5060 - 5450 Fixed,Mobile
- 5450 - 5730 Aeronautical Mobile
- 5730 - 5950 Fixed,Mobile
- 5950 - 6200 International Broadcast 49 M
- 6200 - 6525 Maritime Mobile (CW,voice,RTTY,TOR,SITOR)
- 6525 - 6765 Nautical Mobile (VOLMET weather)
- 6765 - 6795 Industrial,Scientific, and Medical (ISM) (CW,RTTY)
- 6795 - 7000 Fixed Services
- 7000 - 7300 Amateur 40 Meters
- 7100 - 7300 International Broadcast 41 M
- 7300 - 8195 Fixed service
- (Out of band broadcast - 7300-7500 kHz)
- 8195 - 8815 Maritime Mobile (Survival craft - 8364 kHz)
- 8815 - 9040 Aeronautical
- 9040 - 9500 Fixed Service
- 9500 - 9900 International Broadcast 31 M
- 9900 - 10100 Fixed Service
- 10100 - 10150 Amateur 30 Meters
- 10150 - 11175 Fixed Service (primary)
- Mobile (secondary)
- 11175 - 11400 Aeronautical Mobile
- 11400 - 11650 Fixed Services
- (Out of band broadcast - 11500-11650 kHz)
- 11650 - 12050 International Broadcast 25 M
- 12050 - 12230 Fixed Services
- (Also some out of band broadcasts)
- 12230 - 13200 Maritime Mobile
- 13200 - 13360 Aeronautical Mobile
- 13360 - 13410 Fixed Service,Astronomy
- 13360 - 13600 Mobile
- 13600 - 13800 International Broadcast 22 M
- 13800 - 14000 Fixed Service
- 14000 - 14350 Amateur 20 Meters
- 14350 - 14990 Fixed Service
- 14990 - 15010 Standard Frequency and Time Operations
- 15005 - 15010 Space Research (Secondary)
- 15010 - 15100 Off Route Aeronautical Mobile
- 15100 - 15600 International Broadcast 19 M
- 15600 - 16360 Fixed Service
- 16360 - 17410 Maritime Mobile
- 17410 - 17550 Fixed Service
- 17550 - 17900 International Broadcast 16 M
- 17900 - 18030 Aeronautical Mobile
- 18030 - 18068 Fixed Service
- 18068 - 18168 Amateur 17 Meters
- 18168 - 18780 Fixed Service
- 18780 - 18900 Maritime Mobile
- 18900 - 19680 Fixed Service
- 19680 - 19800 Maritime Mobile
- 19800 - 19900 Fixed Service
- 19900 - 20010 Standard Frequency and Time
- 19900 - 19950 Space Research (Secondary)
- 20010 - 21000 Fixed Service
- 21000 - 21450 Amateur 15 Meters
- 21450 - 21850 International Broadcast 13 M
- 21850 - 21870 Fixed Service
- 21870 - 21924 Aeronautical Fixed Service
- 21924 - 22000 Aeronautical Mobile
- 22000 - 22855 Maritime Mobile
- 22855 - 23200 Fixed Service
- 23000 - 23200 Mobile Services (Secondary)
- 23200 - 23350 Off Route Aeronautical Mobile
- 23350 - 24890 Fixed Service
- 23350 - 24000 Mobile Services
- 24000 - 24890 Land Mobile,Fixed Service
- 24890 - 24990 Amateur 12 Meters
- 24990 - 25010 Standard Frequency and Time
- 25010 - 25070 Fixed Service
- 25070 - 25210 Maritime Mobile
- 25210 - 25550 Fixed, Mobile
- 25210 - 25670 Astronomy
- 25670 - 26100 International Broadcast 11 M
- 26100 - 26175 Maritime Mobile
- 26174 - 28000 Fixed Service
- 26174 - 28000 Mobile Services
- 26960 - 27410 Citizens Band
- 27500 - 28000 Meteorological
- 28000 - 29700 Amateur 10 Meters
- 29700 - 30005 Fixed, Mobile
-
-
- HF Terms
- --------
- CW - Morse Code (Continuous Wave), a transmission mode consisting
- of long and short tones known as dits and dahs (or dots and
- dashes). This mode takes up very little spectrum space and
- provides for extremely long distance transmissions due to
- a number of factors such as the ability of the transceiver
- to focus all the energy on a very narrow transmission.
-
- USB - Upper Sideband, a variation of the single sideband voice mode
- (Single sideband sounds very muffled if if receiver does not
- support single sideband mode) Single sideband takes up half
- the space of a normal AM transmission and also provides for
- much longer distance communications than normal double
- sideband AM)
-
- RTTY - Radioteletype, text communication between teleprinters or
- computers
-
- MARS - Military Affiliate Radio Station, radio stations aiding ship
- to shore communications, especially between sailors and their
- families. (NOTE: A valid MARS licence is required to operate
- on MARS frequencies.)
-
- Amateur Radio - Radio Stations broadcasting *noncommercial* information.
- Amatuer Radio Operators have many Amateur Radio Bands
- spread throughout the spectrum. Amateurs are a vital
- source of communications in emergencies but Amateur
- Radio is an exciting hobby even when there is no emergencies.
- Amateurs have many different authorized communications
- modes such as CW,USB,LSB,AM,FM,RTTY,AMTOR,Packet (computer
- to computer error free communications), SSTV (slow scan
- television), FSTV (fast scan television like normal TV),
- and more. Amateurs have built amateur sattelites (for
- extremely long distance communications even on VHF and UHF)
- as well as repeaters to increase the communications range
- of their handheld amateur radios. (NOTE: A valid amateur
- radio licence is required to operate on amateur bands.)
-
-
- For more information about amateur radio and licensing contact the ARRL :
-
- American Radio Relay League
- 225 Main Street
- Newington, CT 06111
- USA
-
-
-
- The information contained in this file was compiled from numerous
- sources. For an more detailed look at the HF spectrum, I suggest
- the ARRL Operating Manual, Fourth Edition, Chapter 1.
-
-
- Listing compiled February 4, 1992 by:
-
- Scott McCurry KD6FJC
- 204 Downing Lane
- Santa Maria, CA 93455-2036
- USA
-
-
-