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Internet Message Format  |  1994-11-13  |  39KB
  1. Date: Mon, 26 Sep 94 13:06:44 PDT
  2. From: Info-Hams Mailing List and Newsgroup <info-hams@ucsd.edu>
  3. Errors-To: Info-Hams-Errors@UCSD.Edu
  4. Reply-To: Info-Hams@UCSD.Edu
  5. Precedence: Bulk
  6. Subject: Info-Hams Digest V94 #1066
  7. To: Info-Hams
  8.  
  9.  
  10. Info-Hams Digest            Mon, 26 Sep 94       Volume 94 : Issue 1066
  11.  
  12. Today's Topics:
  13.      Daily Summary of Solar Geophysical Activity for 24 September
  14.    STD: Weekly Solar Terrestrial Forecast & Review for 23 September
  15.                   TH-75A mods (marine VHF broadcast)
  16.  
  17. Send Replies or notes for publication to: <Info-Hams@UCSD.Edu>
  18. Send subscription requests to: <Info-Hams-REQUEST@UCSD.Edu>
  19. Problems you can't solve otherwise to brian@ucsd.edu.
  20.  
  21. Archives of past issues of the Info-Hams Digest are available 
  22. (by FTP only) from UCSD.Edu in directory "mailarchives/info-hams".
  23.  
  24. We trust that readers are intelligent enough to realize that all text
  25. herein consists of personal comments and does not represent the official
  26. policies or positions of any party.  Your mileage may vary.  So there.
  27. ----------------------------------------------------------------------
  28.  
  29. Date: Sat, 24 Sep 94 21:48:33 MDT
  30. From: ihnp4.ucsd.edu!dog.ee.lbl.gov!agate!howland.reston.ans.net!gatech!newsxfer.itd.umich.edu!nntp.cs.ubc.ca!unixg.ubc.ca!quartz.ucs.ualberta.ca!alberta!ve6mgs!usenet@network.ucsd.edu
  31. Subject: Daily Summary of Solar Geophysical Activity for 24 September
  32. To: info-hams@ucsd.edu
  33.  
  34.                 /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
  35.  
  36.                  DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY
  37.  
  38.                                24 SEPTEMBER, 1994
  39.  
  40.                 /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
  41.  
  42.                   (Based In-Part On SESC Observational Data)
  43.  
  44.  
  45. SOLAR AND GEOPHYSICAL ACTIVITY INDICES FOR 24 SEPTEMBER, 1994
  46. -------------------------------------------------------------
  47.  
  48. !!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 267, 09/24/94
  49. 10.7 FLUX=072.8  90-AVG=079        SSN=020      BKI=2320 0102  BAI=004
  50. BGND-XRAY=A1.2     FLU1=1.6E+06  FLU10=1.4E+04  PKI=2321 1112  PAI=005
  51.   BOU-DEV=013,039,013,004,004,006,003,012   DEV-AVG=011 NT     SWF=00:000
  52.  XRAY-MAX= A4.8   @ 1236UT    XRAY-MIN= A1.0   @ 1058UT   XRAY-AVG= A1.6
  53. NEUTN-MAX= +003%  @ 1825UT   NEUTN-MIN= -001%  @ 1605UT  NEUTN-AVG= +0.4%
  54.   PCA-MAX= +0.1DB @ 1605UT     PCA-MIN= -0.6DB @ 0330UT    PCA-AVG= -0.2DB
  55. BOUTF-MAX=55216NT @ 2307UT   BOUTF-MIN=55197NT @ 1738UT  BOUTF-AVG=55207NT
  56. GOES7-MAX=P:+000NT@ 0000UT   GOES7-MIN=N:+000NT@ 0000UT  G7-AVG=+081,+000,+000
  57. GOES6-MAX=P:+145NT@ 2101UT   GOES6-MIN=N:-013NT@ 1843UT  G6-AVG=+111,+025,+002
  58.  FLUXFCST=STD:074,076,078;SESC:074,076,078 BAI/PAI-FCST=010,010,010/012,015,015
  59.     KFCST=2133 3222 2135 5222  27DAY-AP=007,004   27DAY-KP=2322 1221 1131 1111
  60.  WARNINGS=
  61.    ALERTS=
  62. !!END-DATA!!
  63.  
  64. NOTE: The Effective Sunspot Number for 23 SEP 94 was  22.0.
  65.       The Full Kp Indices for 23 SEP 94 are: 1- 1o 0o 1-   1- 2o 1+ 1+ 
  66.       The 3-Hr Ap Indices for 23 SEP 94 are:   3   4   1   3   3   8   5   5 
  67.       Greater than 2 MeV Electron Fluence for 24 SEP is: 3.6E+06
  68.  
  69.  
  70. SYNOPSIS OF ACTIVITY
  71. --------------------
  72.  
  73.             Solar activity was very low. No flares were observed.
  74.        Region 7781 (S07W20) continues to grow slowly.
  75.  
  76.             Solar activity forecast:  solar activity is expected to be
  77.        very low.
  78.  
  79.        STD: A full-disk Yohkoh x-ray image has been appended to this
  80.        report.  Slightly enhanced x-ray emissions are beginning to
  81.        become visible on the northeast limb near N06.  The background
  82.        x-ray flux is also climbing steadily into the A-class range.
  83.        This is most likely attributed to slight but steady growth in
  84.        Region 7781.
  85.  
  86.             The geomagnetic field was quiet to unsettled.
  87.  
  88.             Geophysical activity forecast:  the geomagnetic field is
  89.        expected to be quiet to unsettled.
  90.  
  91.             Event probabilities 25 sep-27 sep
  92.  
  93.                              Class M    01/01/01
  94.                              Class X    01/01/01
  95.                              Proton     01/01/01
  96.                              PCAF       Green
  97.  
  98.             Geomagnetic activity probabilities 25 sep-27 sep
  99.  
  100.                         A.  Middle Latitudes
  101.                         Active                30/30/30
  102.                         Minor Storm           15/15/15
  103.                         Major-Severe Storm    05/05/05
  104.  
  105.                         B.  High Latitudes
  106.                         Active                25/25/25
  107.                         Minor Storm           20/20/20
  108.                         Major-Severe Storm    10/10/10
  109.  
  110.             HF propagation conditions were normal over all regions.
  111.        Near-normal propagation should continue, although there is a
  112.        chance high and polar latitudes could see minor signal
  113.        degradation (particularly on night-sector paths) over the next
  114.        3 days due to possible (as yet, unseen) effects of a
  115.        transequatorial coronal hole.
  116.  
  117.  
  118. STD ESTIMATED CORONAL HOLE BOUNDARY LOCATIONS DERIVED FROM YOHKOH X-RAYS
  119. ------------------------------------------------------------------------
  120.                    VALID AT 03:00UTC 24SEP94
  121.  
  122.          "!H!" = Highly probable coronal hole locations.
  123.          "!W!" = Weak x-ray emissions (possible weak coronal holes).
  124. !!!
  125. ! !  DOY=267 VALID=03:00UTC 24SEP94
  126. !H!  N07W15 N06W21 N04W25 N04W28 N00W30 S04W34 S06W34 S11W32 S12W31 
  127. !H!  S12W29 S08W28 S02W26 S02W19 N02W16 N04W14 N07W13 N07W15 
  128. ! !
  129. !H!  N72E90 N68E35 N60E16 N65E10 N67E07 N61W11 N52W23 N55W50 N55W71 
  130. !H!  N58W77 N58W90 
  131. ! !
  132. !H!  S75E90 S60E26 S64E14 S60E08 S62W07 S68W12 S64W19 S64W35 S68W56 
  133. !H!  S72W90 
  134. ! !
  135. !W!  S20E19 S14E21 S10E21 S04E14 S04E09 S08E05 S16E01 S20E02 S25E02 
  136. !W!  S28W05 S32W06 S37W02 S34E07 S28E10 S20E19
  137. ! !
  138. !W!  N08E38 N12E34 N13E27 N16E23 N24E22 N24E14 N22E12 N18E14 N15E13 
  139. !W!  N12E11 N07E16 N08E20 N08E26 N07E31 N04E37 N04E39 N08E38 
  140. !!!
  141.  
  142.  
  143. COPIES OF JOINT USAF/NOAA SESC SOLAR GEOPHYSICAL REPORTS
  144. ========================================================
  145.  
  146. LISTING OF SOLAR ENERGETIC EVENTS FOR 24 SEPTEMBER, 1994
  147. --------------------------------------------------------
  148. BEGIN  MAX  END  RGN   LOC   XRAY  OP 245MHZ 10CM   SWEEP
  149. NONE
  150.  
  151.  
  152. POSSIBLE CORONAL MASS EJECTION EVENTS FOR 24 SEPTEMBER, 1994
  153. ------------------------------------------------------------
  154.  BEGIN        MAX      END     LOCATION   TYPE   SIZE  DUR  II IV
  155.      NO EVENTS OBSERVED
  156.  
  157.  
  158. INFERRED CORONAL HOLES. LOCATIONS VALID AT 24/2400Z
  159. ---------------------------------------------------
  160.                ISOLATED HOLES AND POLAR EXTENSIONS
  161.       EAST   SOUTH  WEST   NORTH  CAR  TYPE  POL  AREA   OBSN
  162.                  NO DATA AVAILABLE FOR ANALYSIS
  163.  
  164.  
  165. SUMMARY OF FLARE EVENTS FOR THE PREVIOUS UTC DAY
  166. ------------------------------------------------
  167.  
  168.  Date   Begin  Max   End  Xray  Op Region  Locn    2695 MHz  8800 MHz  15.4 GHz
  169. ------  ----  ----  ----  ----  -- ------ ------  --------- --------- ---------
  170. NO EVENTS OBSERVED.
  171.  
  172.  
  173. REGION FLARE STATISTICS FOR THE PREVIOUS UTC DAY
  174. ------------------------------------------------
  175.  
  176.                 C   M   X     S   1   2   3   4   Total   (%)
  177.                --  --  --    --  --  --  --  --    ---  ------
  178. Uncorrellated: 0   0   0     0   0   0   0   0    000  ( 0.0)
  179.  
  180.  Total Events: 000 optical and x-ray.
  181.  
  182.  
  183. EVENTS WITH SWEEPS AND/OR OPTICAL PHENOMENA FOR THE LAST UTC DAY
  184. ----------------------------------------------------------------
  185.  
  186.  Date   Begin  Max   End  Xray  Op Region  Locn    Sweeps/Optical Observations
  187. ------  ----  ----  ----  ----  -- ------ ------   ---------------------------
  188.                             NO EVENTS OBSERVED.
  189.  
  190. NOTES:
  191.      All times are in Universal Time (UT).  Characters preceding begin, max,
  192.      and end times are defined as:  B = Before,  U = Uncertain,  A = After.
  193.      All times associated with x-ray flares (ex. flares which produce
  194.      associated x-ray bursts) refer to the begin, max, and end times of the
  195.      x-rays.  Flares which are not associated with x-ray signatures use the
  196.      optical observations to determine the begin, max, and end times.
  197.  
  198.      Acronyms used to identify sweeps and optical phenomena include:
  199.  
  200.           II        = Type II Sweep Frequency Event
  201.           III       = Type III Sweep
  202.           IV        = Type IV Sweep
  203.           V         = Type V Sweep
  204.           Continuum = Continuum Radio Event
  205.           Loop      = Loop Prominence System,
  206.           Spray     = Limb Spray,
  207.           Surge     = Bright Limb Surge,
  208.           EPL       = Eruptive Prominence on the Limb.
  209.  
  210.  
  211. SPECIAL INSERT: YOHKOH FULL-DISK X-RAY IMAGE
  212. --------------------------------------------
  213.  
  214.                          23 September 1994, 03:00 UTC
  215.  
  216.                                     North
  217.  
  218.                .......,,...
  219.              ...,,:::::;;;::,..                   ......                       
  220.            ...,,,:::;;--;;;;;::,.                      ............            
  221.           ...,,::;;;;--;:::::,,,,,.  ......              ,,::::::,,.....       
  222.           ..,::;;;;;:;::::,,,,,,.....,,,......       ......,,:;;;;::,,...      
  223.        .....,:;;::::::,,::,,,.,,....,,,,,,......      ....  ...,;;;;::,,..     
  224.       ..,,,::;;::::::::,,,,,,.....,,...,...,...... .   ....  ..,,:;;::,,..     
  225.     ..,,,:;;-;;:::,::::::,,,,....,,,,,,,,..........    ..........,,:;::,....   
  226.     .,:;-++---;:::,,::,,,,,,,,.......,,.,,..........   .  ..........:-;:,,..   
  227.    .,:+|||--;;;;::::,,,,,,,,,,,.......,,,.,.,...          ......,,.,,:-;::,,...
  228.    .:-+||++----;::::::::,,.........,........... ................,,,,;---;;::,,.
  229.   .,:-+|++----;;;:::::::,,,,.. .............. ..... .,,:.,,,,,,..,.,:21--;;::,.
  230.  ..:;+!!--------;;;:::,,,,...   .......,,,,..........,.,,,,,,,,,..,,:;;:-;;::,,
  231.  .,;|!12-;;--+!-;;;::,.......... ......,.,,,,,,....,..,.,,.:,.,-,,,,::::--;::,,
  232.  .,-!12|::;;;-;;:::,.  ..,,...........:,,........,,:,....,,,...,,:::::,:--;::,,
  233. .,:-+|1!;::::::::,,.,,:,,,...,...,.,,,,,........     . ......,,,,-;:,:::-+;:,,.
  234. .,:;+|!1;;::,,,,,,,:::,,,,....,...,,.,,,,,:::,,,,.....   ...,,,,,,::::::--;:,..
  235. ,,:;--|1+;::,,,,,:::::,,,.....,......,,,::-|2!;:;;::,,.   .,-:::,:,:,:::++-;:,.
  236. ,::;-+|!|;;::,::::::::::::,,..........:,:;-#@*|+-;:::,,. .,::::::,,,:,:+++-;;:,
  237. ,:;;--+||-;::,,::::;|;:::::,.... .......,:;--;;:::::::,..,::;;;:;::;::-|--;;:,,
  238. ,:;;;--+++-;:,,,,,,:+++-;::,,... .......,,::::::::,:,,,.,::::;;;;::::;+-;::,,..
  239. ,,,::;---++-:::::::--|!||+::::,.........,,,,,,::;-:,,,,,::::::;:::::;;::,,..   
  240. ..,,::;------::;;;:;-!21|-;;;;::,,..........,,,:,,,,::::::,,,:::::;;:,,...     
  241. ...,,::;;;;;--;:::;-+!|+-;;;;::,,,,..............,,,,,,,,,,:,::::::,,...       
  242. ....,,:::::;;;---;;;;;;;;;;;;:,,,::,,,..........,,,,,,,,,,,,,::;;:,..          
  243.    ...,:::;;;;--+++--;;;;::::::::;:,,,,,,,,,,,,,,,.,,,,,,,,,:--:,...           
  244.      ....,,,:;;;--+++---;;;;;;::::::,,,,,,,,,,,,,,,,:,,,,:;;;::,.              
  245.       .......,,:::;;;;-----;;:,,..,,,,,,,,,,,,,,,,,,:,,,:,,...                 
  246.               ....,,,,:::::::,,..  .      ... .. . ....                        
  247.                      .....  .                                                  
  248.  
  249.                                     South
  250.  
  251. KEY: East and west limbs are to the left and right respectively. Emission
  252.      strength, from minimum to maximum are coded in the following way:
  253.  
  254.      [space] . , : ; - + | ! 1 2 3 4 * # @
  255.  
  256.      Units used are arbitrary, for illustrative purposes.  Get "showasc.zip"
  257.      from "pub/solar/Software" at the anonymous FTP site: ftp.uleth.ca
  258.      (IP # 142.66.3.29) to view these images on VGA screens. Remove
  259.      all but the image data before typing "showasc filename".
  260.  
  261.  
  262. **  End of Daily Report  **
  263.  
  264. ------------------------------
  265.  
  266. Date: Fri, 23 Sep 94 14:29:46 MDT
  267. From: ihnp4.ucsd.edu!dog.ee.lbl.gov!agate!howland.reston.ans.net!gatech!newsxfer.itd.umich.edu!nntp.cs.ubc.ca!unixg.ubc.ca!quartz.ucs.ualberta.ca!alberta!ve6mgs!usenet@network.ucsd.edu
  268. Subject: STD: Weekly Solar Terrestrial Forecast & Review for 23 September
  269. To: info-hams@ucsd.edu
  270.  
  271.                ---  SOLAR TERRESTRIAL FORECAST AND REVIEW  ---
  272.                        September 23 to October 02, 1994
  273.  
  274.                 Report Released by Solar Terrestrial Dispatch
  275.                    P.O. Box 357, Stirling, Alberta, Canada
  276.                                    T0K 2E0
  277.                     Accessible BBS System: (403) 756-3008
  278.              SKYCOM Software Announcement: (403) 756-2386
  279.  
  280.                                   ---------
  281.  
  282.                   **  SOFTWARE DISTRIBUTION ANNOUNCEMENT  **
  283.  
  284.    The Solar Terrestrial Dispatch is seeking individuals who are interested
  285.    in helping us redistribute and market the line of software products we
  286.    have developed.  Specifically, we will shortly permit authorized
  287.    individuals to RESELL and distribute the following:
  288.  
  289.           *  BCAST Solar and Geophysical Database Management Software.
  290.                Contains all of the utilities necessary to use the Extended
  291.                Database below.  Also contains a large limited database of
  292.                solar and geophysical data from 04 Sep 1991 to the 1993 with
  293.                the ability to track solar and geophysical information to
  294.                the present date.  A powerful solar cycle analyst.
  295.  
  296.           *  Extended Database of Solar and Geophysical Data.
  297.                Contains Sunspot numbers from 1818 to 1993, solar flux
  298.                values from 1947 to 1993, and geomagnetic data from 1932
  299.                to 1993.  Ideal for those studying solar cycles and related
  300.                statistics on solar or geomagnetic storms.
  301.  
  302.           *  Professional Dynamic Auroral Oval Simulation Software.
  303.                Determine when and where to look to see auroral activity.
  304.                Simulates the position and appearance of auroral activity
  305.                from any location on the Earth.  Also simulates the appearance
  306.                and location of the Sun and Moon and comes with an extensive
  307.                database of auroral activity sightings.
  308.  
  309.           *  SKYCOM HF Ionospheric Signal Analyst Propagation Software.
  310.                A sophisticated and powerful high-frequency propagation
  311.                program.  Ideal for radio communicators or listeners,
  312.                commercial broadcasters, educators, and anyone else interested
  313.                in radio propagation.  Produce broadcast coverage maps, global
  314.                maps of maximum usable frequencies, maps showing the proximity
  315.                of signal paths to the auroral zones, and MUCH more.
  316.                Ray-trace signals between any two paths.  Produce an all-band
  317.                spectrum analysis showing what bands or frequencies to use at
  318.                specific times of the day, what transmission elevation angles
  319.                to use, modes of communication, magnitude of multipathing, and
  320.                MUCH more than is possible to list here.  SKYCOM outranks most
  321.                other propagation programs in features, power, and
  322.                flexibility.
  323.  
  324.    There are no special personal requirements to become authorized.  Anyone
  325.    can participate.  To find out how, send a request for more information to:
  326.    Oler@Ultrix.Uleth.CA or to: COler@Solar.Stanford.Edu along with your
  327.    postal mailing address.  We will send the required information to you
  328.    through postal mail.
  329.  
  330.                                   ---------
  331.  
  332.              SOLAR AND GEOPHYSICAL ACTIVITY FORECASTS AT A GLANCE
  333.              ----------------------------------------------------
  334.  
  335.                 |10.7 cm|HF Propagation  +/- CON| Mag| Aurora |
  336.                 |SolrFlx|LO MI HI PO SWF %MUF  %|K Ap|LO MI HI|
  337.               --|-------|-----------------------|----|--------|
  338.     September 23|  072  | G  G  F  F  05 -05  75|2 08|NV NV LO|
  339.               24|  074  | G  G  P  P  05 -15  70|3 15|NV NV MO|
  340.               25|  074  | G  G  P  P  05 -15  65|3 15|NV NV MO|
  341.               26|  074  | G  G  P  F  05 -10  65|2 12|NV NV MO|
  342.               27|  076  | G  G  F  F  05 -05  70|2 10|NV NV LO|
  343.               28|  076  | G  G  F  F  05  00  70|2 08|NV NV LO|
  344.               29|  076  | G  G  F  F  05  00  70|2 08|NV NV LO|
  345.               30|  078  | G  G  F  F  05  00  65|2 08|NV NV LO|
  346.       October 01|  078  | G  G  F  F  05  00  65|2 08|NV NV LO|
  347.               02|  076  | G  G  F  F  05  00  65|2 08|NV NV LO|
  348.  
  349.  
  350. PEAK PLANETARY 10-DAY GEOMAGNETIC ACTIVITY OUTLOOK (23 SEP - 02 OCT)
  351.     ________________________________________________________________________
  352.    |  EXTREMELY SEVERE |   |   |   |   |   |   |   |   |   |   | HIGH       |
  353.    | VERY SEVERE STORM |   |   |   |   |   |   |   |   |   |   | HIGH       |
  354.    |      SEVERE STORM |   |   |   |   |   |   |   |   |   |   | MODERATE   |
  355.    |       MAJOR STORM |   |   |   |   |   |   |   |   |   |   | LOW - MOD. |
  356.    |       MINOR STORM |   |   |   |   |   |   |   |   |   |   | LOW        |
  357.    |       VERY ACTIVE |   |   |   |   |   |   |   |   |   |   | NONE       |
  358.    |            ACTIVE |   | * | * |   |   |   |   |   |   |   | NONE       |
  359.    |         UNSETTLED | **|***|***|***|** |** |** |** |** |***| NONE       |
  360.    |             QUIET |***|***|***|***|***|***|***|***|***|***| NONE       |
  361.    |        VERY QUIET |***|***|***|***|***|***|***|***|***|***| NONE       |
  362.    |-------------------|---|---|---|---|---|---|---|---|---|---|------------|
  363.    | Geomagnetic Field |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun|  Anomaly   |
  364.    |    Conditions     |     Given in 8-hour UT intervals      | Intensity  |
  365.    |________________________________________________________________________|
  366.  
  367.                             CONFIDENCE LEVEL: 70%
  368.  
  369. NOTES:
  370.        Predicted geomagnetic activity is based heavily on recurrent
  371. phenomena. Transient energetic solar events cannot be predicted reliably over
  372. periods in excess of several days.  Hence, there may be some deviations from
  373. the predictions due to the unpredictable transient solar component.
  374.  
  375.  
  376. 60-DAY GRAPHICAL ANALYSIS OF GEOMAGNETIC ACTIVITY
  377.  
  378.          ____________________________________________________________
  379.      30 |                                              M             |
  380.      28 |                                             AM             |
  381.      27 |                    A                       AAM             |
  382.      26 |                    A                       AAM             |
  383.      24 |                    A                       AAM             |
  384.      22 |                    A                       AAM             |
  385.      21 |                   AA                       AAM             |
  386.      20 |                   AA                       AAM             |
  387.      18 |                   AA                       AAMA            |
  388.      16 |  A              A AA                       AAMA            |
  389.      15 |  A             AAAAAA                     UAAMAA           |
  390.      14 |  A             AAAAAA                     UAAMAA           |
  391.      12 |  AU            AAAAAA         U      U    UAAMAA U         |
  392.      10 | UAU            AAAAAA         U      U    UAAMAA U         |
  393.       9 | UAUU           AAAAAAU        U      U    UAAMAAUUU UU     |
  394.       8 | UAUUUU         AAAAAAU    UU  U      U   UUAAMAAUUU UU     |
  395.       6 |QUAUUUUU Q      AAAAAAUUU UUUU UUUU   UQ  UUAAMAAUUUUUU   Q |
  396.       4 |QUAUUUUUQQ QQ  QAAAAAAUUUQUUUUQUUUU  QUQQ UUAAMAAUUUUUUQQ Q |
  397.       3 |QUAUUUUUQQQQQQ QAAAAAAUUUQUUUUQUUUUQQQUQQQUUAAMAAUUUUUUQQQQQ|
  398.       2 |QUAUUUUUQQQQQQQQAAAAAAUUUQUUUUQUUUUQQQUQQQUUAAMAAUUUUUUQQQQQ|
  399.       0 |QUAUUUUUQQQQQQQQAAAAAAUUUQUUUUQUUUUQQQUQQQUUAAMAAUUUUUUQQQQQ|
  400.          ------------------------------------------------------------
  401.                          Chart Start Date:  Day #207
  402.  
  403. NOTES:
  404.      This graph is determined by plotting the greater of either the planetary
  405.      A-index or the Boulder A-index.  Graph lines are labelled according
  406.      to the severity of the activity which occurred on each day.  The left-
  407.      hand column represents the associated A-Index for that day.
  408.      Q = Quiet, U = Unsettled, A = Active, M = Minor Storm,
  409.      J = Major Storm, and S = Severe Storm.
  410.  
  411.  
  412. CUMULATIVE GRAPHICAL CHART OF THE 10.7 CM SOLAR RADIO FLUX
  413. ----------------------------------------------------------
  414.  
  415.      ____________________________________________________________
  416. 101 |                                                            |
  417. 100 |                                        *                   |
  418. 099 |                                        *                   |
  419. 098 |                                        *                   |
  420. 097 |                                        *                   |
  421. 096 |                                        *                   |
  422. 095 |                                        *  *                |
  423. 094 |                                        ****                |
  424. 093 |                                        ****                |
  425. 092 |                                        *****               |
  426. 091 |                                        *****               |
  427. 090 |                                       ******               |
  428. 089 |                    *                  *******              |
  429. 088 |                    *                  *******              |
  430. 087 |                    *                  ********             |
  431. 086 |                    *                 *********             |
  432. 085 |                    *                 *********             |
  433. 084 |                   **                 *********             |
  434. 083 |                   **               * *********             |
  435. 082 |                   **               ************            |
  436. 081 |                  ****              *************           |
  437. 080 |                  ****              *************           |
  438. 079 |                  ****              *************           |
  439. 078 |                * **** *           **************           |
  440. 077 |                *********          ***************          |
  441. 076 |    *    * * *  *********          ****************         |
  442. 075 |*  **** ****** ***********         ****************         |
  443. 074 |**************************         *****************        |
  444. 073 |**************************         *****************        |
  445. 072 |***************************  ** *  ******************  *    |
  446. 071 |****************************************************** *   *|
  447. 070 |************************************************************|
  448. 069 |************************************************************|
  449.      ------------------------------------------------------------
  450.                         Chart Start:  Day #206
  451.  
  452.  
  453. GRAPHICAL ANALYSIS OF THE 5-DAY AVERAGE SOLAR FLUX
  454. --------------------------------------------------
  455.  
  456.      ____________________________________________________________
  457. 096 |                                                            |
  458. 095 |                                             *              |
  459. 094 |                                            **              |
  460. 093 |                                            **              |
  461. 092 |                                           ****             |
  462. 091 |                                           *****            |
  463. 090 |                                          ******            |
  464. 089 |                                          *******           |
  465. 088 |                                         ********           |
  466. 087 |                                         ********           |
  467. 086 |                                         *********          |
  468. 085 |                                         *********          |
  469. 084 |                                         *********          |
  470. 083 |                                        ***********         |
  471. 082 |                      **                ***********         |
  472. 081 |                     ****               ***********         |
  473. 080 |                     *****             *************        |
  474. 079 |                    ******             *************        |
  475. 078 |                    ******             **************       |
  476. 077 |                   ********           ***************       |
  477. 076 |**                *********           ****************      |
  478. 075 |***    *********************         *****************      |
  479. 074 |*****************************        ******************     |
  480. 073 |******************************       ******************     |
  481. 072 |*******************************     ********************    |
  482. 071 |**********************************************************  |
  483. 070 |************************************************************|
  484. 069 |************************************************************|
  485.      ------------------------------------------------------------
  486.                         Chart Start:  Day #206
  487.  
  488.  
  489. GRAPHICAL ANALYSIS OF THE 10-DAY AVERAGE SOLAR FLUX
  490. --------------------------------------------------
  491.  
  492.      ____________________________________________________________
  493. 091 |                                                            |
  494. 090 |                                              ****          |
  495. 089 |                                             ******         |
  496. 088 |                                             ******         |
  497. 087 |                                            *******         |
  498. 086 |                                            ********        |
  499. 085 |                                            ********        |
  500. 084 |                                           **********       |
  501. 083 |                                           **********       |
  502. 082 |                                          ************      |
  503. 081 |                                          ************      |
  504. 080 |                                         **************     |
  505. 079 |                      ******             **************     |
  506. 078 |*                    ********            **************     |
  507. 077 |***                 **********          ****************    |
  508. 076 |****               ************         *****************   |
  509. 075 |********    *******************        ******************   |
  510. 074 |********************************      ********************  |
  511. 073 |**********************************   ********************** |
  512. 072 |*********************************** ************************|
  513. 071 |************************************************************|
  514. 070 |************************************************************|
  515.      ------------------------------------------------------------
  516.                         Chart Start:  Day #206
  517.  
  518.  
  519. GRAPHICAL ANALYSIS OF THE 20-DAY AVERAGE SOLAR FLUX
  520. --------------------------------------------------
  521.  
  522.      ____________________________________________________________
  523. 084 |                                                            |
  524. 083 |                                                 ********   |
  525. 082 |                                               ************ |
  526. 081 |**                                            **************|
  527. 080 |***                                          ***************|
  528. 079 |*****                                      *****************|
  529. 078 |*******                                   ******************|
  530. 077 |**********            *******            *******************|
  531. 076 |*************       **************   ***********************|
  532. 075 |************************************************************|
  533. 074 |************************************************************|
  534.      ------------------------------------------------------------
  535.                         Chart Start:  Day #206
  536.  
  537.  
  538. GRAPHICAL ANALYSIS OF 90-DAY AVERAGE SOLAR FLUX
  539. -----------------------------------------------
  540.  
  541.      ____________________________________________________________
  542. 081 |                                                            |
  543. 080 |                                           *******          |
  544. 079 |**********************                 *********************|
  545. 078 |************************************************************|
  546. 077 |************************************************************|
  547.      ------------------------------------------------------------
  548.                         Chart Start:  Day #206
  549.  
  550. NOTES:
  551.      The 10.7 cm solar radio flux is plotted from data reported
  552.      by the Penticton Radio Observatory (formerly the ARO from
  553.      Ottawa).  High solar flux levels denote higher levels of
  554.      activity and a greater number of sunspot groups on the Sun.
  555.  
  556.  
  557. CUMULATIVE GRAPHICAL CHART OF SUNSPOT NUMBERS
  558. ---------------------------------------------
  559.  
  560.      ____________________________________________________________
  561. 106 |                                                            |
  562. 101 |                                        *                   |
  563. 096 |                                        *                   |
  564. 091 |                                       ** *                 |
  565. 086 |                                       **** *               |
  566. 081 |                                       ******               |
  567. 076 |                                       ******               |
  568. 071 |                   *  *                ******               |
  569. 066 |                   *  *                *******              |
  570. 061 |                   ******              *******              |
  571. 056 |                 *********           ********** *           |
  572. 051 |                 *********           ********** *           |
  573. 046 |                 *********    *      ********** *           |
  574. 041 |                 *********    *     *********** *           |
  575. 036 |                ************ **     *************           |
  576. 031 |      *        ************* **     *************           |
  577. 026 |      *   **   ************* **     *************      **   |
  578. 021 |*** * ** ***   ************* **   ****************     **   |
  579. 016 |*** * ********************** ** * ****************    ***   |
  580. 011 |*********************************************************  *|
  581. 006 |*********************************************************  *|
  582. 001 |*********************************************************  *|
  583. 000 |************************************************************|
  584.      ------------------------------------------------------------
  585.                         Chart Start:  Day #207
  586.  
  587. NOTES:
  588.      The graphical chart of sunspot numbers is created from the
  589.      daily sunspot number counts as reported by the SESC.
  590.  
  591.  
  592. HF RADIO SIGNAL PROPAGATION PREDICTIONS (23 SEP - 02 OCT)
  593.  
  594.                               High Latitude Paths
  595.             ________________________________________________________
  596.            | EXTREMELY GOOD |   |   |   |   |   |   |   |   |   |   |
  597.            |      VERY GOOD |   |   |   |   |   |   |   |   |   |   |
  598. CONFIDENCE |           GOOD |   |   |   |   |   |   |   |   |   |   |
  599.   LEVEL    |           FAIR |***| **| **| **|***|***|***|***|***|***|
  600.  -------   |           POOR |   |*  |*  |*  |   |   |   |   |   |   |
  601.    70%     |      VERY POOR |   |   |   |   |   |   |   |   |   |   |
  602.            | EXTREMELY POOR |   |   |   |   |   |   |   |   |   |   |
  603.            |----------------|---|---|---|---|---|---|---|---|---|---|
  604.            |  PROPAGATION   |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun|
  605.            |    QUALITY     |    Given in 8 Local-Hour Intervals    |
  606.             --------------------------------------------------------
  607.  
  608.                              Middle Latitude Paths
  609.             ________________________________________________________
  610.            | EXTREMELY GOOD |   |   |   |   |   |   |   |   |   |   |
  611.            |      VERY GOOD |   |   |   |   |   |   |   |   |   |   |
  612. CONFIDENCE |           GOOD |***| **| **|***|***|***|***|***|***|***|
  613.   LEVEL    |           FAIR |   |*  |*  |   |   |   |   |   |   |   |
  614.  -------   |           POOR |   |   |   |   |   |   |   |   |   |   |
  615.    70%     |      VERY POOR |   |   |   |   |   |   |   |   |   |   |
  616.            | EXTREMELY POOR |   |   |   |   |   |   |   |   |   |   |
  617.            |----------------|---|---|---|---|---|---|---|---|---|---|
  618.            |  PROPAGATION   |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun|
  619.            |    QUALITY     |    Given in 8 Local-Hour Intervals    |
  620.             --------------------------------------------------------
  621.  
  622.                                 Low Latitude Paths
  623.             ________________________________________________________
  624.            | EXTREMELY GOOD |   |   |   |   |   |   |   |   |   |   |
  625.            |      VERY GOOD |   |   |   |   |   |   |   |   |   |   |
  626. CONFIDENCE |           GOOD |***|***|***|***|***|***|***|***|***|***|
  627.   LEVEL    |           FAIR |   |   |   |   |   |   |   |   |   |   |
  628.  -------   |           POOR |   |   |   |   |   |   |   |   |   |   |
  629.    85%     |      VERY POOR |   |   |   |   |   |   |   |   |   |   |
  630.            | EXTREMELY POOR |   |   |   |   |   |   |   |   |   |   |
  631.            |----------------|---|---|---|---|---|---|---|---|---|---|
  632.            |  PROPAGATION   |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun|
  633.            |    QUALITY     |    Given in 8 Local-Hour Intervals    |
  634.             --------------------------------------------------------
  635. NOTES:
  636.         NORTHERN HEMISPHERE                    SOUTHERN HEMISPHERE
  637.   High latitudes >= 55      deg. N.  |   High latitudes >= 55      deg. S.
  638. Middle latitudes >= 40 < 55 deg. N.  | Middle latitudes >= 30 < 55 deg. S.
  639.    Low latitudes  < 40      deg. N.  |    Low latitudes  < 30      deg. S.
  640.  
  641.  
  642. AURORAL ACTIVITY PREDICTIONS (23 SEP - 02 OCT)
  643.  
  644.                             High Latitude Locations
  645.             ________________________________________________________
  646.            | EXTREMELY HIGH |   |   |   |   |   |   |   |   |   |   |
  647. CONFIDENCE |      VERY HIGH |   |   |   |   |   |   |   |   |   |   |
  648.   LEVEL    |           HIGH |   |   |   |   |   |   |   |   |   |   |
  649.  -------   |       MODERATE | * | * |   |   |   |   |   |   |   |   |
  650.    70%     |            LOW |***|***|***|** |** |** |** |** |** |***|
  651.            |    NOT VISIBLE |***|***|***|***|***|***|***|***|***|***|
  652.            |----------------|---|---|---|---|---|---|---|---|---|---|
  653.            |    AURORAL     |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun|
  654.            |   INTENSITY    |  Eve.Twilight/Midnight/Morn.Twilight  |
  655.             --------------------------------------------------------
  656.  
  657.                           Middle Latitude Locations
  658.             ________________________________________________________
  659.            | EXTREMELY HIGH |   |   |   |   |   |   |   |   |   |   |
  660. CONFIDENCE |      VERY HIGH |   |   |   |   |   |   |   |   |   |   |
  661.   LEVEL    |           HIGH |   |   |   |   |   |   |   |   |   |   |
  662.  -------   |       MODERATE |   |   |   |   |   |   |   |   |   |   |
  663.    70%     |            LOW |   |   |   |   |   |   |   |   |   |   |
  664.            |    NOT VISIBLE |***|***|***|***|***|***|***|***|***|***|
  665.            |----------------|---|---|---|---|---|---|---|---|---|---|
  666.            |    AURORAL     |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun|
  667.            |   INTENSITY    |  Eve.Twilight/Midnight/Morn.Twilight  |
  668.             --------------------------------------------------------
  669.  
  670.                              Low Latitude Locations
  671.             ________________________________________________________
  672.            | EXTREMELY HIGH |   |   |   |   |   |   |   |   |   |   |
  673. CONFIDENCE |      VERY HIGH |   |   |   |   |   |   |   |   |   |   |
  674.   LEVEL    |           HIGH |   |   |   |   |   |   |   |   |   |   |
  675.  -------   |       MODERATE |   |   |   |   |   |   |   |   |   |   |
  676.    95%     |            LOW |   |   |   |   |   |   |   |   |   |   |
  677.            |    NOT VISIBLE |***|***|***|***|***|***|***|***|***|***|
  678.            |----------------|---|---|---|---|---|---|---|---|---|---|
  679.            |    AURORAL     |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun|
  680.            |   INTENSITY    |  Eve.Twilight/Midnight/Morn.Twilight  |
  681.             --------------------------------------------------------
  682.  
  683. NOTE:
  684.      Version 2.00c of our Professional Dynamic Auroral Oval Simulation
  685. Software Package is now available.  This professional software is
  686. particularly valuable to radio communicators, aurora photographers,
  687. educators, and astronomers.  For more information regarding this software,
  688. contact: "Oler@Rho.Uleth.CA", or "COler@Solar.Stanford.Edu".
  689.  
  690.      For more information regarding these charts, send a request for the
  691. document, "Understanding Solar Terrestrial Reports" to: "Oler@Rho.Uleth.Ca"
  692. or to: "COler@Solar.Stanford.Edu". This document, as well as others and
  693. related data/forecasts exist on the STD BBS at: (403) 756-3008.
  694.  
  695.  
  696. **  End of Report  **
  697.  
  698. ------------------------------
  699.  
  700. Date: 26 Sep 1994 17:57:33 GMT
  701. From: ihnp4.ucsd.edu!swrinde!gatech!news.byu.edu!netline-fddi.jpl.nasa.gov!nntp-server.caltech.edu!news.cerf.net!hacgate2.hac.com!usenet@network.ucsd.edu
  702. Subject: TH-75A mods (marine VHF broadcast)
  703. To: info-hams@ucsd.edu
  704.  
  705. In article 001588CE@olympus.net, vaughnwt@olympus.net (Bill Vaughn) writes:
  706. >In article <CwHrtw.7q2@borland.com> eomiya@genghis (Elliot Omiya) writes:
  707. >>Is it possible to modify a Kenwood TH-75A (2m/440) so that it can
  708. >>broadcast on VHF 9 and 16 (I think 16 is 156.800 but I'm not sure).
  709. >>Also, is it "legal" to do such a modification?
  710. >
  711. >This is very illegal.  You will be better off just buying a marine radio. They 
  712. >are much cheaper than ham gear. And you will have a 25 watt rig. Even after 
  713. >you get your marine station license it would be cheaper than your handheld. 
  714. >Don't take short cuts with your safety on the water.
  715.  
  716. Actually, doing the modification is not illegal.  Transmitting on those
  717. frequencies with a transmitter that is not type accepted for such use would be
  718. illegal, however.  Except that in an emergency, it is legal to use whatever means
  719. necessary to summon assistance.
  720.  
  721. The FCC rules for marine radios require an (expensive) license just to possess one
  722. on a boat, even if you don't use it.  To me, this is very counter productive as
  723. far as safety is concerned, as it discourages the occasional boater from obtaining
  724. a useful piece of emergency equipment.  However, if you have an amateur license,
  725. your station is licensed by the FCC (as required by 47 CFR 80.13(a) for all stations
  726. in the maritime service) and you are breaking no laws just because it is capable of
  727. being used on frequencies outside the amateur bands.  If you actually use that
  728. capability in a non-emergency, then the FCC can come down on you.
  729.  
  730. Disclaimer: I'm no lawyer and wouldn't want to be one.
  731.  
  732. -Brian
  733. suggs@tcville.es.hac.com
  734.  
  735. ------------------------------
  736.  
  737. End of Info-Hams Digest V94 #1066
  738. ******************************
  739.