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- ++++++++++++ dx_w2iol.doc = this file ++++++++++++++
-
- +++++++++ dx_w2iol.dat = DX data in country order ++++++++++
-
- +++++++++ See K2DI DXCC data for prefix order reference ++++++
-
- NOTES
-
- for
-
- Amateur Radio
-
- "DX Gazetteer"
-
- &
-
- "DX Bearing & Distance Tables"
-
- by
- Bellcore Pioneers Amateur Radio Association
- - BPARA -
-
- Telephone Pioneers of America
- Bellcore Chapter 99
-
-
- w2iol
- 13 October 1993
-
- +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-
- CONTENTS
-
-
- 1. General Information on the ``DX Bearing'' & ``DX
- Gazetteer'' Tables.................................
-
- 2. Paper, Pictures and PCs............................
-
- 3. Amateur Radio Prefix References....................
-
- 4. DX QTH Latitude & Longitude Coordinates............
-
- 5. Recommended Reading for DX'ers.....................
-
- 6. Short Path Bearings, Returns & Distances...........
-
- 7. Long Path Data from Short Path Data................
-
- 8. VUCC Grid Locators.................................
-
- 9. ITU Regions........................................
-
- 10. Continents.........................................
-
- 11. Amateur Radio Zones................................
-
- 12. ``STATUS''.........................................
-
- 13. DX Awards..........................................
-
- 14. USA Third Party Traffic Treaties & Reciprocal
- Licensing/Operating Agreements.....................
-
- 15. Time & Time Again..................................
-
- 16. HF Time & Frequency Standard Stations..............
-
- 17. National Radio Quiet Zone (NRQZ)...................
-
- 18. Northern California DX Foundation's (NCDXF) HF
- Beacons............................................
-
- 19. U. S. Navy HF Beacons..............................
-
- 20. Suggestions and Errors.............................
-
- +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-
- 1. General Information on the ``DX Bearing'' & ``DX Gazetteer''
- Tables
-
- a. The Amateur Radio DX Gazetteer includes latitude and
- longitude coordinates, and status in DXCC, United Nations,
- ITU, etc.
-
- b. The DX Bearing Tables include Great Circle bearings,
- returns and distances, time differences (DX - local), DXCC
- status, etc.
-
- c. CONTENTS for DX GAZETTEER TABLES
-
-
- DATA SET
- ______________________
- DXCC "Country", "City"
- Antarctic Bases
- Continental U.S.A.
- NCDXF HF Beacons
- U. S. Navy HF Beacons
-
- d. The DX Gazetteer and Bearing tables are available in
- alphabetic order by prefix or by "``country'', city". The
- prefix order is 0-9-A-Z.
-
-
- 2. Paper, Pictures and PCs
-
- Someone once said that a picture is worth 30 dB-words. All
- the bearing and distance information, accurate enough for almost
- all ham radio purposes, can be found graphically very easily from
- an azimuthal-equidistant global map centered on or anywhere near
- (by many, many miles) the home QTH. Such maps are much more
- enlightening as to what is happening than tables, such as the DX
- Bearing Tables. They also make a nice wall decoration and a good
- introductory discussion piece, especially for non- (potential)
- hams. The ARRL Operating Manual has about 20 such maps that are
- centered on various parts of the world.
-
- Suppliers of personalized A-E maps advertise in the ham
- magazines. The ARRL and the Callbook sell multi-colored versions
- centered on Kansas, the center of the continental USA. Other
- versions, centered on major cities such as New York, are
- available from the US Government Printing Office and elsewhere if
- you look around.
-
- The latitude and longitude coordinates from these tables can
- be used as input to any of several "Maximum Usable Frequency"
- (MUF) programs to determine the best probable frequencies to
- attempt contact between two points on earth for given solar flux
- and sunspot conditions for a given day of the year and time of
- day. See the ARRL Amateur Radio Handbook and ARRL Antenna
- Handbook.
-
- A number of personal computer programs are now available
- that combine bearings, distance, MUF and gray line propagation
- calculations with color maps. Thus, the value of this set of
- tables is not in providing bearings, which can be obtained easily
- from the maps or calculated using any one of many available
- calculator and computer programs, but in gathering a variety of
- DX data together in one place.
-
- This set of dx data and the bearing program was originated
- in 1968 by Wayne Felts, ex-K4VEC, as a deck of punched cards that
- produced paper output. In 1969 ex-K4YZO/W2IOL inherited the
- package and began tweaking steadily away. Since the late '70s,
- the programs and data have been all bits in computers, both unix
- and PC; the output was still usually paper.
-
- Recently, the country order data has been made available in
- electronic form as well, via e-mail from the ARRL info server,
- ftp from buffalo.edu and on the "QRZ!" cd-rom disk. With the
- electronic form, there are some handy ways to access the data.
- For general browsing on a PC, Vernon Buerg's "list" utility is
- highly recommmended. An ASCII editor/viewer, like vi/view, is
- useful on unix. For access to the data for a particular prefix,
- country or city, the "grep" utility, in unix and PC versions, is
- very useful. On a PC, write a batch program called "dx.bat" (or
- whatever.bat) with the one line, "grep %1 c:\hamstuff\dx.dat"
- where the data is named "dx.dat" and stored in a directory
- "hamstuff." On unix, the program could be called just "dx" and
- consist of the line, "grep hamstuff/dx.dat" and then do a "chmod
- 777 dx" to make it executable. Then to retrieve infomation on
- Timbuktu, just type "dx Timb". For "4U" prefixes, type "dx 4U".
- To get a list of just DXCC entities, type "dx ' DX '" with single
- (or double) quotes and the spaces before and after "DX." "dx
- -0500" would list the entries with time zones 5 hours behind GMT,
- etc.
-
-
- 3. Amateur Radio Prefix References
-
- For general references for amateur radio prefixes, see: The
- ARRL Operating Manual, "DXCC" By ARRL, Callbooks, "Worked-100-
- Nations" by Worldradio, "DX Dynasty Award" by 73, and the
- Directory of Islands by RSGB. For the latest prefixes see the DX
- columns in the magazines (QST, Ham Radio, CQ and 73) and the many
- DX newsletters, such as the DX News-Sheet. Geoff Watts, Norwich,
- England, publishes a number of detailed reference guides
- including, "The ``DXNS'' Prefix-Country-Zone List," "The ``DXNS''
- DXCC Countries Guide," "The ``DXNS'' CQ & ITU Zones Guide," and
- "The ``DXNS'' Soviet Oblast Guide." To identify the home country
- for new, strange prefixes that appear without notice, see the ITU
- prefix allocation tables for each country in the ARRL Operating
- Manual, the ARRL Amateur Radio Handbook, or in the Callbooks,
- etc.
-
-
- 4. DX QTH Latitude & Longitude Coordinates
-
-
- Latitude & Longitude
- - In Bearing tables, printed to 0.01 degree
- (truncated, not rounded)
- - In Gazetteer tables, printed to nearest minute
-
- For references for latitude and longitude coordinates, see:
- US Department of the Interior Geological Survey (USGS)
- topological maps, The National Atlas of the United States, Polar
- Regions Atlas by the Central Intelligence Agency, and also
- various atlases by Rand McNally, Prentice-Hall, The Times, and
- other publishers. For a capsule description of political and
- geographical points of interest, see Chapmans World Gazetteer.
- The Rand McNally College World Atlas, is a pocket size paperback
- for 5 dollars. Another compact reference is The Portable World:
- A Complete Pocket World Atlas, (in the United Kingdom sold under
- the name Philips Small World Atlas) by Willett, Gaylard and
- Prince-Smith, published by Avon Books for 9 dollars. These
- altases all have an index of locations with latitude and
- longitude coordinates. Not all atlases list coordinates. The
- USGS USA Place Names data base is now available on IBM PC-
- compatible disks and CD-ROMs.
-
-
- 5. Recommended Reading for DX'ers
-
- George J. Demko, former director of the U. S. Office of the
- Geographer, with Jerome Agel and Eugene, has a book, Why In The
- World: Adventures in Geography, (Anchor Doubleday, 1992) that
- should be read by any DX'er. In addition, Jon Fisher has two
- little books called Uninhabited and Deserted Islands and The Last
- Frontiers on Earth - Strange Places Where You Can Live Free,
- (Loopanics Unlimited, 1983 & 1985). These books describe the
- location, geography, climate and general living conditions of
- many of the obscure little islands and odd spots on Earth that we
- call "DX countries." There are very good reasons why many are
- normally uninhabited by sane folks (read non-hams) and why DX-
- peditions are necessary to put them on the air.
-
-
- 6. Short Path Bearings, Returns & Distances
-
- Bearings, return bearings and distance calculations are only
- in the Bearing tables, not the DX Gazeteer version. The Gazeteer
- has other data not in the Bearing tables.
-
- a. "BRNG" = Great Circle Bearing from local QTH to DX QTH.
- = Short Path Bearing (degrees)
- (measured clockwise from geographic or true North)
-
- b. "RTRN" = Return = Great Circle "Reverse" or "Reciprocal"
- Bearing from DX QTH to local QTH
- = Short Path Return (degrees)
- (measured clockwise from geographic or true North)
-
- c. "DSTNC" = Great Circle Distance for Short Path in
- "km" = kilometers, "sm" = statute miles, or "nm" =
- nautical miles.
-
-
- 7. Long Path Data from Short Path Data
-
- a. (Long Path Angles) = (Short Path Angles) + or - (180 degrees)
-
- c. (Long Path Distance) ~= (Earth Circumference) - (Short Path Distance),
-
- Where Earth Circumference = Average = 40008 km = 24881 sm = 21603 nm
-
- Earth Earth
- Radius Circumference
- __________|____________|_______________
- | 6378.16 km| 40075.2 km
- Equatorial| 3963.20 sm| 24901.5 sm
- | 3443.92 nm| 21638.2 nm
- __________|____________|_______________
- | 6356.77 km| 39940.8 km
- Polar | 3949.91 sm| 24818.0 sm
- | 3432.38 nm| 21566.3 nm
- __________|____________|_______________
- | 6367.47 km| 40008.0 km
- Average | 3960.00 sm| 24881.4 sm
- | 3441.14 nm| 21602.6 nm
- __________|____________|_______________
-
- The bearing and distance calculations can be calculated for
- a spherical earth with the "average" circumference. As the above
- table of polar and equatorial radii show, the earth isn't quite a
- perfect sphere. Being slightly flattened at the poles, it is an
- oblate spheroid. (The term "ellipsoid" is also used sometimes,
- but isn't quite right since all cross sections are not ellipses.)
- Michael Owen, W9IP, has adapted a U. S. Navy Fortran algorithm
- based on the the more accurate spheroidal model to Turbo Pascal.
- The average spherical results and the spheroidal distances can
- differ up to 1 part in 300 depending on locations, distance and
- direction. The bearing and return (reverse) bearing, to the
- nearest degree anyway, usually do not change at all. For radio
- work, the greater accuracy is usually only important when setting
- VHF/UHF propagation records which was one main purpose in
- developing "BD." "BD" calculates spheroidal bearings and
- distances from latitude/longitude coordinates or grid locators.
- See "The World Above 50 MHz" column in the April and June 1993
- issues of QST for discussions of the subject and Michael's "BD"
- program
-
- Great circle bearings from point A to point B do not take
- into account other propagation paths such as the "Gray Line" or
- the sunrise/sunset terminator path possible between some
- locations. Computer DX aids such as "Gray Line Advantage" by
- MFJ, "The DX Edge" by Xantek or Geoclock by Ralph Alghren, can
- show such paths (and start conversations).
-
-
- 8. VUCC Grid Locators
-
- "VUCC Grid" VHF/UHF Century Club grid location in IARU "Maidenhead" format
- by Folke Rosvall, SM5AGM (QST, W1XX, Jan & Oct 83)
-
- Characters Type Area (Long. by Lat.) Name
- _____________________________________________________________
- 1, 2 letters 20d by 10d "field"
- uppercase
- A-R, S*
-
- 3, 4 numbers 2d by 1d "square"
- 0-9
-
- 5, 6 letters 5m by 2.5m "sub-square"
- lowercase|-
- a-x
-
- * - Grid Locators define an area while latitude and
- longitude define a point. Unofficial W2IOL conventions for Grid
- Locators treat the North and South geographic poles1 as small
- "point" grids. The South Pole "grid" is large enough to cover
- the Amundsen-Scott base, KC4AAA.2 The North Pole "grid" would
- cover a polar expedition camp site.
-
- ___________________________________________________________
-
- [ 1. The north and south magnetic and geomagnetic poles are ]
- [ in the data base. They move around by many miles. ]
-
- ___________________________________________________________
-
- "Grid" Pole Notes
- ______________________________________________
- AS00aa North Pole "S" unique to North Pole
- AA00aa South Pole KC4AAA
-
- |- - Another unofficial W2IOL convention is the use of
- lowercase letters for characters 5 and 6, as a means to better
- distinguish them from the uppercase letters for characters 1 and
- 2.
-
- Examples:
- Latitude Longitude Grid Locator
- _________________________________________
- 40d 46.9m N 074d 41.4m W = FN20ps
- 40d 46.9m S 074d 41.4m E = ME79if
- 40d 46.9m S 105d 18.6m E = OE29pf
- 40d 46.9m N 105d 18.6m W = DN70is
-
- Only the first four characters that are used for VUCC awards
- are printed in the tables. There are 32,400 distinct 2d by 1d
- grid squares. (If we count the unofficial "point" grids for the
- North and South poles by the W2IOL convention, then there would
- be 32,402.)
-
- The ARRL World Locator Atlas by SM5AGM has maps showing all
- the grid squares and also Basic language programs that can be
- used to calculate the grid locator from latitude and longitude
- and vice versa, as well as bearings and distances given grid
- locators. See also: The ARRL Grid Locator (for US and Canada)
- map. The "VHF Plus" column in CQ magazine for December 1992
- discusses the history of grid square locator systems.
-
- 8-Character Grid Locators? As described above, the 6-
- character grid locator can describe an area no smaller than 2.5
- by 5 minutes. In the last year, GPS receivers capable of
- locating a QTH within a fraction of a minute became available for
- less than 000. The Trimble Scout GPS receiver has extended the
- Maidenhead/SM5AGM grid locator definition to at least 8
- characters.
-
- ____________________________________________________________
-
- [ 2. The geographic poles wiggle around a little, too. ]
- [ Someone usually is assigned to move the real pole stuck ]
- [ at the South Pole a few feet every so often. ]
-
- ____________________________________________________________
-
- 9. ITU Regions
-
- "ITU" = International Telecommunications Union, Geneva
- "ITU rgn" = ITU "Frequency Allocation Regions"
-
- ITU REGION AREA (Brief Description)
- _______________________________________________________________________
- 1 Europe, Africa, Iceland, "Middle East", Turkey, U.S.S.R., Mongolia
-
- 2 North America, South America, Greenland, North Pacific
-
- 3 Asia-not-in-1, Iran, Australia, South Pacific.
-
- For more precise boundaries, see the ITU Region map in QST,
- October 1988.
-
-
- 10. Continents
-
- The International Amateur Radio Union (IARU) "Worked All
- Continents" (WAC) awards program uses the following definitions
- for "continents."
-
- CT Continent
- _________________________________________________________
- Af Africa
- An Antarctica (not used for WAC)
- (Af, As, SA & Oc used for Antartica.)
- As Asia
- Eu Europe
- NA North America
- SA South America
- Oc "Oceania"
- = Australia + (most of Indian and Pacific Oceans)
-
- See Callbook maps for continent boundaries. The Callbook
- has the Egyptian Sinai peninsula in Africa, while the
- encyclopedias have it in Asia. Curiously, the normal "civilian"
- atlases rarely show continent boundaries.
-
-
- 11. Amateur Radio Zones
-
- "CQ" "CQ" Zones (1 to 40)
- Used for CQ Magazine "Worked-All-Zone" awards
-
- "IT" "ITU" Zones 1 to 75 defined by the ITU
- = ITU "Geographical Broadcast Reception Zones"
- +
- "IARU/Callbook" Zones 76 to 90
- for
- ocean areas not specified by ITU|-.
-
- Used for the IARU "Radiosport Contest"
- & for "World ITU Zones" awards by K6YK
-
- |- - These undefined-by-ITU areas usually have no land area
- above water. One exception is Minami Torishima (JD) that is
- located in the Pacific in Callbook-defined zone 90 and near-but-
- not-in ITU-defined zone 45. It is sometimes listed as ITU zone
- 45 and sometimes 90. See the ARRL Operating Manual and Callbook
- maps for "CQ" and "ITU" zone boundaries.
-
-
- 12. ``STATUS''
-
- #
- ABRV RELATIONSHIP Entities
- _________________________________________________________________
- UN United Nations member* 180
- IT ITU member* 165?
- DX DXCC by American Radio Relay League 328
- = "DX Century Club"
- Is "Island DX Award" (IDX) by 169
- Whidbey Island DX Club
- 73 "DX Dynasty Award" = DXDA by 73 Magazine 402
- WR "Worked-100-Nations" = W-100-N by Worldradio 226|-
- 3P USA 3rd Party Traffic Treaties 43
- RL USA Reciprocal Licensing & Operating Agreements 71
-
- * Almost all UN members are also ITU members, and vice
- versa. Exceptions include:
-
- Switzerland & Vatican City that are ITU members, but not
- UN.
- Switzerland is an Observer at the UN.
- Bhutan, Dominica, Namibia, Seychelles & Vanuatu are UN
- members, but not ITU.
-
- Radiosporting magazine's "DX Centurion Award" program uses
- the DXCC entity list.
-
-
- |- The W-100-N total does not include Malyj Vysotskij (4J1)
- or Rotuma Island (3D2) or many other amateur radio DX
- "countries." The W-100-Nation intention is to include only
- sovereign nations, with their own independent governments.
- Colonies, dependents, military or research bases, and properties
- of the sovereign entities are counted as the same as the home
- nation. Thus, the W-100-N entity total is the smallest of the
- worldwide DX awards.
-
- The Whidbey Island DX Club's "Island DX Awards" program uses
- the DXCC entities that are defined as islands by the National
- Geographic Society. The Directory of Islands by the Radio
- Society of Great Britain (RSBG), that is used for the "Islands on
- the Air" (IOTA) Award, lists 12 pages of islands for the world.
-
- Most of the deleted DXCC entities, those that still have a
- recognizable geographic location, appear in the tables under the
- current valid entity.
-
- During 1990, North and South Yemen joined, East and West
- Germany re-united and East and West Berlin re-united.
-
- In 1991, the Soviet Union (USSR) broke up into 15 separate
- countries. Ten of them have formed a loose "Commonwealth of
- Independent States" (CIS). Azerbaijan, Estonia, Georgia, Latvia
- and Lithuania are going their own ways for now. "CIS" has
- replaced "USSR" in the tables.
-
- In 1992, Yugoslavia broke into four entities. In 1993 it
- seems to be disintegrating even more. In January 1993,
- Czezhoslovakia peacefully broke into the Czech Republic and the
- Slovak Republic. Several other groups are trying to claim their
- own territories within existing countries or lapping across two
- or more nations. Several of these potential new "countries" are
- listed in the tables under the existing entity. In September
- 1993, Israel and the Palestinian Liberation Organization (PLO)
- seem to have taken the first small step toward a Palestinian
- homeland or at least a chance for peace.
-
- During the '70s and '80s the former Canadian Northwest
- Territories (NWT) districts of McKenzie and Franklin were divided
- into new districts of Baffin, Invuvik, Keewatin, Kitikmeot and
- Ft. Smith. Most of the eastern part of NWT is now becoming the
- new Inuit (Eskimo) territory of Nunavut with the capital at
- either Resolute or Iqaluit. The western NWT may be given a new
- name, perhaps Denendeh.
-
- The DXCC Advisory Council is continually reviewing petitions
- for acceptance of new places for DXCC status. As of September
- 1993, Eritrea (E3) has been approved for DXCC status. Walvis Bay
- and the Penquin Islands (ZS9) are expected to be deleted in 1994
- after South Africa turns them over to Namibia.
-
-
- 13. DX Awards
-
- For information on:
-
- AWARD TITLE SPONSOR
- ___________________________________________________
- DXCC DX Century Club ARRL
- IOTA Islands on the Air RSGB, G3KMA
- WAC Worked All Continents IARU
- WAZ Worked All Zones CQ
- WITUZ World ITU Zones K6YK
- WPX World Prefixes CQ
- "WUN"? Worked UN(?) Kansas Radio Club?
-
- and many, many, many more amateur radio DX award programs see:
- the ARRL Operating Manual, The DX Awards Directory by K1BV, and
- the "Awards" columns in 73, CQ, Worldradio, and many DX
- newsletters.
-
-
- 14. USA Third Party Traffic Treaties & Reciprocal
- Licensing/Operating Agreements
-
- "3P" "3PTT" USA Third Party Traffic Treaties
-
- "RL" "RLOA" USA Reciprocal Licensing / Operating Agreements
-
- These agreements and treaties usually also include
- territories of the given country. For example: British and
- French territories follow the home country. For Antarctic base
- stations, see individual home countries listed for 3PTT or RLOA.
-
- For Emergencies or Special Events, temporary agreements are
- sometimes arranged with countries other than those listed.
- Otherwise: Third Party Traffic, even an informal greeting, is
- illegal.
-
- For the United Kingdom, Third Party Traffic is legal only
- with pre-arranged "GB" prefix stations. "GB3" prefixes are
- excluded from this agreement! An example is GB8SD, ("Scottish
- Day") (Kilmarnock or Glasgow, Scotland) arranged for message
- traffic to and from the annual Bellcore Pioneers "Scottish Day at
- Bonnie Brae" benefit event for the Bonnie Brae boy's home
- (Millington, NJ, USA). Pitcairn Island (VR6) follows an informal
- agreement for allowing handling of messages dealing with health,
- safety and vital supplies.
-
- See QST for June 1993 (page 58), and CQ for March 1990
- (pages 90-92) and the Callbooks for more on 3rd Party Traffic
- Treaties and Reciprocal Licensing/Operating Agreements and late
- changes.
-
-
- 15. Time & Time Again
-
- One part of daily planning for DXing is figuring out when
- the hams of the world are likely to be on the air operating
- versus sleeping or working. The world daylight/nighttime maps by
- "Gray Line Advantage," "The DX Edge" and "Geoclock" and a number
- of other dx programs show this very clearly. You can see where
- hams are working noon-time DX on 20 meters or grayline at dawn or
- dusk, or sound asleep in the middle of the night. If you don't
- have either of these aids or an equivalent, you figure it out
- with a quick mental calculation with the time information in
- these tables.
-
- World "time zones", used for everyday living, "clock time,"
- are defined as twenty-four one-hour-wide (15d) (usually)
- longitudinal slices. Clock time increases eastward of of the
- "prime" or "Greenwich" meridian (0d E/W) that passes through the
- Greenwich Observatory, Greenwich, England, and decreases
- westward. "Ideal" one hour zones are centered on a meridian of
- longitude that is a multiple of 15d longitude.
-
- Geographical and political boundaries don't match this ideal
- of time zones centered on 15d intervals, so most time zone
- boundaries zig and zag to reflect human needs and political
- realities. Several time sub-zones are offset x hours plus 30
- minutes to better match local sunrises and sunsets. Liberia (-
- 0045) and the Chatham Islands (+1245) are offset by 15 (or 45)
- minutes. The World Book Encyclopedia has one of the clearest
- world time zone maps. Saudia Arabia observes "Sun Time" that
- goes by actual sunset and sunrise times (in the +0300 hour time
- zone band). Arctic and Antarctic polar regions, with months of
- daylight and darkness at a time, usually observe GMT. Even
- though it spans 31/2 time zones, the People's Republic of China
- uses, or at least is supposed to use, only the time zone (+0800)
- for Biejing. For the Chinese in the far west, this is equivalent
- to the people in California trying to live on Boston time.
-
- The time zone at Greenwich has been commonly called
- "Greenwich Mean Time", or more often just "GMT." (In military
- jargon, the term "ZULU" time is also often used to refer to
- "GMT".) Local standard times are referred to as being "ahead"
- (+hhmm, east) of GMT, or "behind" (-hhmm, west) of GMT. The
- actual date changes at the "International Date Line" that zigs
- and zags near 180d E/W longitude where locations to the east of
- Greenwich are 12 hours ahead and locations to the west of
- Greenwich are 12 hours behind. When crossing the Date Line, one
- "gains" a day going west or "loses" a day going east.
-
- "Universal Coordinated Time" or "UTC" (from the French,
- "Universelle Tiempes Coordinate") is now the proper term for the
- reference time at the prime/Greenwich Meridian.3 UTC is adjusted
- every so often by a "leap second" to compensate for variations in
- the earth's rotation. Standard time stations, like WWV, follow
- these adjustments. There are other "standard times" that are
- used for astronomy and other scientific purposes.
-
- To make better use of available daylight as the sunrise and
- sunset times shift through the year, many locations shift their
- clocks one hour ahead of "Local Standard" time from mid-spring to
- mid-autumn to "Daylight Savings Time" (DST) or "Summer Time".
-
- The "DX Bearing" and "DX Gazetteer" tables use the following
- conventions:
-
- a. "Greenwich Mean Time" (GMT)/(UTC)
-
- "GMT" = (DX QTH Standard Time) - GMT
-
- "+hhmm" = DX QTH Standard Time ahead (east) of GMT
- by hh hours & mm minutes
- "-hhmm" = DX QTH Standard Time behind (west) of GMT
- by hh hours & mm minutes
-
- b. Time Differences:
- DX QTH Standard relative to Local (Home) QTH Standard
-
- "TMDF" = "Standard Time Difference"
-
- = (DX QTH Standard Time) - (Local QTH Standard Time).
-
- "+hhmm" = DX QTH Standard Time ahead (east) of Local
- "-hhmm" = DX QTH Standard Time behind (west) of Local
-
-
- ___________________________________________________________
-
- [ 3. UTC is one of family of "universal times" that also ]
- [ includes UT0, UT1 and UT2, that account for the ]
- [ variations in the Earth's orbit around the sun and are ]
- [ used for various scientific purposes. ]
-
- ___________________________________________________________
-
-
- c. "DST" = Daylight Savings Time or Summer Time
- "+N" Entities in the northern hemisphere that
- advance local standard time by one hour
- between March/April and September/October.
-
- "+S" Entities in the southern hemisphere that
- advance local standard time by one hour
- between September/October and March/April.
-
- England, France, Spain and Mexico observe "Summer"/"Savings"
- time year around. Several of the European ex-USSR countries have
- changed their time zone from +0300 to +0200. In August 1993,
- Kwajalein Island switched from east of the International Date
- Line (-1200 UTC) to west (+1200) to agree with the rest of the
- Marshall Islands. They skipped from Friday to Sunday with no
- Saturday that week.
-
- In the U.S., by state law, Arizona uses Mountain Standard
- Time (MST, -07:00) from October to April and Pacific Daylight
- Savings Time (PDST, -07:00) from April to October. However,
- Indian reservations in Arizona do observe normal Mountain DST.
- So the towns of Page, Tsaile and Whiteriver may observe DST. In
- addition, Kentucky allows local option for DST. The story on how
- the US time zone and savings time system came about is told in
- the article, "Standard and Daylight-saving Time," by Bartky and
- Harrison in Scientific American, May 1979.
-
-
- 16. HF Time & Frequency Standard Stations
-
- Twenty-seven high frequency (2-30 mHz) time and frequency
- standard stations are indicated in curly brackets ({}). For
- examples:
-
- { WWV }, { WWVH }, { CHU }, { JJY }, ...
-
- These stations can be useful as sources of the time, checks for
- frequency calibration and HF propagation beacons.
-
- The "city" latitudes and longitudes used in the tables in
- these cases are actually the "standard" station coordinates, not
- the "city" center. For example, standard station RWM (55d 48m N
- 38d 18m E) is about 20 km east of downtown Moscow (Moskva), USSR
- (55d 45m N 37d 42m E).
-
- The radio based navigation systems, LORAN-C, Omega, Transit
- and NAVSTAR/Global Positioning System (GPS), and the CIS (ex-
- Soviet) GLONASS depend on maintaining extremely accurate time and
- frequency and can be used as standards for most purposes. See
- Reference Data for Engineers: Radio, Electronics, Computer, and
- Communications published by H. W. Sams and Reference Manual for
- Telecommunications Engineering by R. L. Freeman, Recommendations
- and Reports of the CCIR, 1986, Volume VII, "Standard Frequencies
- and Time Signals," NIST (former NBS) Special Publication 432,
- "NIST Time and Frequency Services," and "GPS World" magazine.
-
-
- 17. National Radio Quiet Zone (NRQZ)
-
- a. NRQZ BoundaParts of Virginia & West Virginia
- Bounded by
- 37d 30m N to 39d 15m N in Latitude &
- 78d 30m W to 80d 30m W in Longitude.
-
- b. NRQZ Purpose is to protect:
-
- NRAO National Radio Astronomy Observatory
- Green Bank, WV at 38d 26.4m N 079d 49.8m W
- &
- NRL Naval Research Laboratory
- Sugar Grove, WV at 38d 30.7m N 079d 18.6m W
-
- For more information on the NRQZ, see "Happenings," pages
- 53-54, QST, June 1981.
-
-
- 18. Northern California DX Foundation's (NCDXF) HF Beacons
-
- The Northern California DX Foundation (NCDXF) supports
- beacon stations on 20 meters at 14.100 MHz at various locations
- around the world. Whether the sunspots are hot or not, these
- beacons serve to indicate openings to various parts of the world,
- help calibrate your "S" meter, and act as in-band time and
- frequency standards. In early 1989, the USA FCC approved similar
- beacons for 21.150 and 28.200 mHz. Other countries have not
- acted as of yet.
-
- Schedule: Each beacon occupies a one-minute time slot on a
- rotating basis with the others. For example, 4U1UN/B at the U.N.
- headquarters in New York City is on the air at every "0" minute;
- i.e. at the top of the hour, at 10 minutes after, at 20 minutes
- after, etc. For now, there is no station for the nine minute
- slot. (Other stations may be off the air occasionally for
- maintenance, having been stolen, etc).
-
- Output sequence: Each message begins and ends with a CW id
- at 100 watts. In between, the beacon broadcasts a series of
- continuous tones at 100, 10, 1, and 0.1 watts.
-
- TIME CALL LOCATION
- _________________________________
- 00 4U1UN/B New York
- 01 W6WX/B California
- 02 KH6O/B Hawaii
- 03 JA2IGY Japan
- 04 4X4TU/B Israel
- 05 OH2B Finland
- 06 CT3B Madeira Island
- 07 ZS6DN/B South Africa
- 08 LU4AA/B Argentina
- 09 _____/B [ None for now ]
-
- Also, at minute 02, the W6WX beacon at Stanford University
- broadcasts on 21.150 mMHz. At minute 03, it transmits on 28.200
- MHz and it is then silent until its turn on 14.100 MHz at minute
- 11, etc. The other beacons will eventually follow on 21.15 and
- 28.20 MHz.
-
- Reports: The DX Foundation is eager to get reception
- reports. They've even worked up a way for individual stations to
- best evaluate day-to-day propagation changes. (It's based on
- assigning numbers to the different power levels and adding up the
- total you can hear.)
-
- For more information, contact:
-
- Northern California DX Foundation
- P.O. Box 2368
- Stanford, CA 94309.
-
- Put "Beacon Info" or some such on the envelope so it will
- immediately be routed to the Beacon Manager without someone
- having to open your letter to find out what it's about.
-
- The foundation is more and more these days going by the name
- "The DX Foundation" to avoid confusion with the Northern
- California DX Club, which is an entirely separate group. So, the
- formal name is still NCDXF, but don't let it throw you if you
- hear the shorter version.
-
- Happy beaconing!
- [These "Beacon" notes are courtesy of Patty Winter, N6BIS.]
-
- See also:
- ARRL Operating Manual,
- "20 Meter Beacons Revisited" by W5AE, QST, December 1988.,
- "Tuning the 20 Meter Beacon Network" by K4TWJ, CQ, March 1984, &
- "Worldwide Beacon Net: ..." by W6ISQ & K6RU, QST, June 1983.
-
-
- 19. U. S. Navy HF Beacons
-
- The United States Navy has begun to establish its own high
- frequency beacons for use in propagation studies to validate the
- computerized propagation models like IONCAP. The first beacon is
- at Cape Prince of Wales, Alaska and a second is planned for
- Rarotonga, South Cook Islands in the fall of 1993. The main
- transmissions use spread spectrum modulation but the IDs are in
- CW and FSK. Times below are minutes relative to the hour.
-
- Frequency ID Times
- kHz CW FSK
- 5604 00 01
- 11004 20 21
- 16804 40 41
-
- Several amateur radio operators are involved in the project,
- including Bob Rose (K6GKU) and Gus Lott (KR4K).
-
-
- 20. Suggestions and Errors
-
- Please refer suggestions and errors to W2IOL.
- 13 October 1993
-
- +++++++++ dx_w2iol.dat = DX data in country order ++++++++++
-
- +++++++ See K2DI DXCC data for prefix order reference ++++++
-
- ++++++++++++ dx_w2iol.doc = this file ++++++++++++++
-
-
-