221 lines
9.0 KiB
Plaintext
221 lines
9.0 KiB
Plaintext
Date: 6 Jul 89 06:10:46 GMT
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Subject: Scanner Search Aid Version 4
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===============================================================================
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HAMNET SCANNER SEARCHERS GUIDE
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Compiled by Steve Sampson
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===============================================================================
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30.000 - 46.610 MHz Business Band, Government
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Emergency Guard
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40.500 Primary
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46.610 - 47.000 MHz Portable Phones
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The following channels are listed as BASE/HANDSET.
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46.610/49.670 Channel 1
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46.630/49.845 Channel 2
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46.670/49.860 Channel 3
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46.710/49.770 Channel 4
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46.730/49.875 Channel 5
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46.770/49.830 Channel 6 (Also Baby Monitors on 49.83)
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46.830/49.890 Channel 7 (Also Baby Monitors on 49.89)
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46.870/49.930 Channel 8
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46.930/49.990 Channel 9
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46.970/49.970 Channel 10
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47.000 - 49.670 MHz Business Band
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49.670 - 50.000 MHz Portable Phones
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50.000 - 54.000 MHz Amateur Radio
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54.000 - 72.000 MHz VHF Television (Ch 2 - 4)
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Television Channels are 6 MHz wide
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Video is Fo + 1.25 MHz
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Audio is Video + 4.5 MHz
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Color Burst is Video + 3.5795
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72.000 - 76.000 MHz Model Radio Control, Aviation and Industry
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75.000 MHz is Aircraft Navigation Marker Beacon. This is near
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airports on the ILS (Instrument Landing System) course. Three lights
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are in the cockpit (Purple, Amber, White):
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Purple - Outer Marker, Intercept Point, 4 to 7 Miles downrange
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Two 400 Hz Dashes Per Second.
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Amber - Middle Marker, Cat I Decision Height, 3500 Feet
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downrange, 1300 Hz Dot and Dashes 95 times a minute.
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White - Inner Marker, Cat II Decision Height, 3000 Feet
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downrange, Six 3000 Hz Dots Per Second.
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76.000 - 88.000 MHz VHF Television (Ch 5 - 6)
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88.000 - 108.000 MHz FM Commercial Advertising (some music)
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108.000 - 112.000 MHz Aviation Navigation (Terminal VOR, ILS)
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Currently 80 50 kHz Channels
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112.000 - 117.950 MHz Aviation Navigation (VOR)
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Currently 120 50 kHz Channels
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118.000 - 136.000 MHz Aviation Communication
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Currently 720 25 kHz Channels
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Emergency Guard
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121.500 Primary
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136.000 - 138.000 MHz Weather Satellite, Government, Business
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138.000 - 144.000 MHz Government (Military Bases)
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144.000 - 148.000 MHz Amateur Radio
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148.000 - 151.000 MHz Government
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151.000 - 156.250 MHz Business Band (Police, Fire)
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156.250 - 157.425 MHz Marine Band
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Emergency Guard
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156.800 Primary
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157.450 - 160.200 MHz Business Band (Police, Fire)
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160.200 - 161.600 MHz Railroad (161.600 is Marine Band)
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161.605 - 161.795 MHz Business Band (Radio and TV Remotes)
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161.800 - 162.000 MHz Marine Band (Telephone)
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162.000 - 174.000 MHz Government, Some Business (Radio and TV Remotes)
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This is the common "Government Band", frequency spacing
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is typically 12.5 kHz, other users are 5 kHz spacing
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NOAA Weather is transmitted on:
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162.400, 162.425, 162.450, 162.475, 162.500, 162.525, 162.550
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174.000 - 216.000 MHz VHF Television (Ch 7 - 13)
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216.000 - 220.000 MHz Maritime Mobile
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220.000 - 222.000 MHz Land Mobile Radio
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222.000 - 225.000 MHz Amateur Radio
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225.000 - 329.000 MHz Government (Military Aviation)
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329.000 - 335.000 MHz Government (Airport Glide Slope Navigation)
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335.000 - 400.000 MHz Government (Military Aviation)
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364.200 AICC (Airborne Intercept Control Common)
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Many security low power control devices are located in the 225 - 400
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band, both civilian and government.
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Emergency Guard
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243.000 Primary
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282.800 Secondary ("Twenty-Eight Twenty-Eight")
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400.000 - 420.000 MHz Government (Base Walkie/Talkies, Pagers, etc)
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420.000 - 450.000 MHz Amateur Radio
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450.000 - 470.000 MHz Business Band (Police, Fire, Radio and TV Remotes)
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470.000 - 890.000 MHz UHF Television (Ch 14 - 83)
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(All channels not used anymore, 70 - 83 Obsolete)
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806.000 - 810.000 MHz Business Band (Conventional Systems, Mobile Input)
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810.000 - 816.000 MHz Public Safety (Slow Growth Systems, Mobile Input)
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816.000 - 821.000 MHz Business Band (Trunked Systems, Mobile Input)
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821.000 - 825.000 MHz Land Mobile Satellite Service (Mobile Input)
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825.000 - 835.000 MHz Cellular Telephone Non-Wireline (Mobile Input)
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835.000 - 845.000 MHz Cellular Telephone Wireline (Mobile Input)
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845.000 - 850.000 MHz Cellular Telephone (Expansion, Mobile Input)
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850.000 - 851.000 MHz Unallocated
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851.000 - 855.000 MHz Business Band (Conventional systems, Base Output)
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855.000 - 861.000 MHz Public Safety (Slow Growth Systems, Base Output)
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861.000 - 866.000 MHz Business Band (Trunked Systems, Base Output)
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866.000 - 870.000 MHz Land Mobile Satellite Service (Satellite Output)
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870.000 - 880.000 MHz Cellular Telephone Non-Wireline (Base Output)
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880.000 - 890.000 MHz Cellular Telephone Wireline (Base Output)
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890.000 - 895.000 MHz Cellular Telephone (Expansion, Base Output)
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895.000 - 902.000 MHz Land Mobile Radio (Mobile Input)
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902.000 - 928.000 MHz Amateur Radio
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928.000 - 930.000 MHz Multi-Address Paging
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930.000 - 931.000 MHz Advanced Technology Paging
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931.000 - 932.000 MHz Common Carrier Paging
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932.000 - 935.000 MHz Government/Private Shared
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935.000 - 941.000 MHz Land Mobile Radio (Base Output)
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941.000 - 944.000 MHz Government/Private Shared
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944.000 - 947.000 MHz Broadcast Studio To Transmitter Link
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947.000 - 952.000 MHz Broadcast Radio Services
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952.000 - 960.000 MHz Microwave Relay and Paging
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960.000 -1215.000 MHz Military TACAN, JTIDS, and Civilian DME
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TACAN has 126 X and 126 Y channels. Normally only X channels
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are used, unless crowded. TACAN frequencies are tied to VOR
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frequencies. (Note: there are more TACAN frequencies than
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VOR frequencies, some are blanked around the ATCRBS Beacon
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frequencies, and others are for expansion and military use).
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Pulse width is 3.5 microseconds. Aircraft sounds like a Top
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Fuel Dragster or Funny Car when searching for lock-on.
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Channel VOR Air Ground
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-------------------------------
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17X 108.00 1041 978
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17Y 108.05 1041 1104
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18X 108.10 1042 979
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18Y 108.15 1042 1105
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19X 108.20 1043 980
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19Y 108.25 1043 1106
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. . .
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58X 112.10 1082 1019
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58Y 112.15 1082 1145
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59X 112.20 1083 1020
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59Y 112.25 1083 1146
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. . . (Unused to protect Beacon)
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70X 112.30 1094 1157
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70Y 112.35 1094 1031 (Unused to protect Beacon)
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126X 117.90 1150 1213
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126Y 117.95 1150 1087 (Last VOR pairing)
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29Y and 92Y Favorites for Military Air Refueling (Air-Air)
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Check the heavens if active. All Air-Air pairs are 63 apart.
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29Y N/A 1053 1116
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92Y N/A 1116 1053
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Air Traffic Control Radar Beacon System (ATCRBS - At Crabs,
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Secondary Radar - to the British)
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1030 MHz Ground Interrogations to Transponder
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1090 MHz Aircraft Transponder Replies to Ground
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There are currently five interrogation modes in use:
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Mode 1, 2 pulses spaced 3 microseconds [Military]
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Mode 2, 2 pulses spaced 5 microseconds [Military]
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Mode 3/A, 2 pulses spaced 8 microseconds [Military/Civilian]
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Mode 4, Encrypted, IFF [Military]
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Mode C, 2 pulses spaced 21 microseconds [Military/Civilian]
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A third pulse is also included in all modes (except 4) at
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2 microseconds from the first. This is the sidelobe pulse.
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if it's within @6 dB of the first pulse (or greater) the
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transponder doesn't reply (as it has detected an antenna
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sidelobe). Pulse widths are .8 microseconds.
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The reply is two framing pulses spaced 20.3 microseconds apart,
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with 13 code pulses (0000 - 7777 Octal) and an X pulse at the
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center which is not used anymore). A fourth pulse (called SPI
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pulse (Special Position Identifier) is used to identify your
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position when asked by a controller to "Squawk Ident", it is
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4.35 microseconds after the last framing pulse and lasts for
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20 seconds (about 2 scans of a long range radar). Pulse widths
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are .45 microseconds.
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1215.000 - 1240.000 MHz Government
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1227.6 MHz Is the Civilian Global Positioning Satellite (GPS)
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Frequency L2 and 1575.42 MHz is L1. Will probably replace
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LORAN and VOR when fully functional.
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1240.000 - 1300.000 MHz Amateur Radio, Government
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