Pat Dyer
                   327 Solar Drive
             San Antonio, TX 78227
           Deadline: 12th of month

                             APRIL 1972

Hank Holbrook, 7211 Chestnut Street, Chevy Chase, MD 20015 uses a
variety of receivers at his Fair Haven, MD DX cottage. (1) Regency
DR-200, 14-tube, for low-and hi-band with 8' wire and 19'' vertical
antennae, respectively; (2) Regency AR-136D, 9-tube, 108-136 MHz with
Blonder-Tounge FM Booster and Finco single-bay FM 10-el Yagi. CDR
rotor; and (3) for the pagers, SP-600 with 100' long-wire directed
northeast. Only QSLed DX is listed, GMT used.

 2-12: 1818, KME 438   35.22  Orange, CA (pager, c.w. ID, 250 w)
 10-9: 2342, N8709U   123.6   vic. of Washington, DC (Airplane Ser-
                              vices, Inc.; Cessna single-engine)
10-30: 1633, N520S    128.6   s. Norfolk, VA (Texas Gulf Sulphur Co.:
                              Saberline Jet; 24.000 ft)
11-14: 0152, D-ABOX   128.6   over JFK Apt., NY (Lufthansa Flight
                              493; Boeing 707; 25 W)
   19: 1607,    -     128.9   nr Dulles Apt., DC (Braniff Flight 10;
                              Boeing 727; 25 w)
   20: 1452, N791FT   128.3   35 naut. mi. s.e. Harrisburg, PA (Flying
                              Tiger Line: Tiger341;DC-8-63 cargo; 25w)
       1503, N5467P   128.    vic. Dover AFB, DE (Mr. Charles R. Mil-
                              Ier; Piper Comanche sing-eng,3500'; 13w)
   26: 2047, N5608S   122.5   7 n.m. ene Baltimore, MD (Warner Moore &
                              Co.; Beech Bonanza sing-eng V53; 3500')
       2114, N7629J   122.8   ovr Easton, MD (Chesapeake Aircraft Sal-
                              es, Inc.: Piper Cherokee sing-eng; 10 w)
   27: 1724, N471SP   128.9   20 mi nw of Kenton, DE (Scott Paper Co.;
                              Fairchild F-27F twin-engine)
       1906, N9006S   128.9   ovr Kenton, DE (Mr. N.J. Kanney; Beech
                              D95A single-engine)
       2015, G-AVPB   128.3   ovr Coyle, NJ (BOAC speed Bird 5007:
                              Boeing 707-336C freighter;31,000'; 25 w)
   28: 0228, G-ASGB   131.1   ovr Millville, NJ (BOAC Speed Bird 522;
                              BAC-110; 25 w)
       1341, N193H    119.7   s of Chesapeake Bay Bridge (Mr. Charles
                              R. Fulton; Beech Bonanza S35 sing-eng)
 12-3: 0144, N260O    128.3   ovr Coyle, NJ (Mobile Oil Corporation;
                              Grumman 1159 twin-engine)
   11: 1911, N6876Y   119.7   nr Baltimore, MD (Fawn Plastics Co.,
                              Inc.; Piper Aztec D twin-engine turbo)
       1911, N4764J   119.7   ovr Chesapeake Bay Bridge, MD (Barbara
                              Feader; Beech Musketeer sing-eng; 10 w)
       2144, N600KC   128.6   30 mi wnw Baltimore, MD (Kimberly Clark
                              Corp. Dassault/Sud FanJet Falcon,2-e;25w)
   17: 2316, N9214R   124.0   ovr Swan Point, MD (Martin Marietta
                              Corp.; Lockheed 1329 4-engine)
   18: 1800,    -     128.3   NYC area (Air Canada Flight 080; DC-9;
                              charter; 25 w)
   24: 0235, N111MS   128.7   20 mi n Salisbury, MD (Delaware R. Land
                              Co.; Swearingen AS26AT-2eng prop-jet;17K')
       1452, N1727T   128.3   vic. Dover, DE (Trans-International
                              Airlines; 19,000 '; 250 w)
   26: 2202,    -     128.3   060° at 130 n.m. from NYC (Air France
                              flight 070; Boeing 707; 28 W)
VHF RADIO                      Page 2                       APRIL 1972

  26: 2203, CF-TOC   128.3   apx 100 mi s Montreal, Que., Canada (Air
                             Canada Flight 601; Boeing 747; 25 w)
      2250, CF-CPK   128.3   55 n.m. s Gordonsville, VA (Canadaian Pac-
                             ific Airlines-Empress Ft 882-Boeing 727;33K')
      2348, CF-TIQ   128.3   NYC area (Air Canada Flight 655; DC-8, 25 w)
  27: 0243, N2995X   119.4   Baltimore, MD (TSS Flying Club, Inc.;
                             Cessna 177 single-engine, 4-place; 10 w)
      1457, N49MJ    128.15  6 mi s.w. Salisbury, MD (N.L. Joseph Const.
                             Co.; Swearingen Merlin IIB prop-jet;24K'-30w)
      1534, N7806M   128.3   ovr Hanover, PA (Mohawk Airlines FH-227)
      1655, HK-724   132.5   vic. Washington, DC (Avianca - Aerovias
                             Nacionales de Colombia; Boeing 720B)
1-15: 1906, N6150N   119.7   10 mi n Baltimore, MD (Ames B. Jones;
                             Beech H23 single-engine)
      2109, N665T    119.7   ovr Chesapeake Bay Bridge, MD (Travel Air,
                             Beech 95 twin-engine, 5 seat; 9 w)

Terry Colgan, 119 Andrews St., Apt. 14, San Antonio, TX 78209 with a
sample ''cross section'' of his many loggings lately. GMT used.

from College Station, TX:

10-28: 2215, KCD 473  33.70  Wolcott, CT (fire, 100 w)
11-12: 2327,    -     35.26  Bellingham, WA (mobilephone)
 12-7: 2248, KKI 445  35.58  Houston, TX (pager)
   14: 0110, KEO 371  42.50  La Salle, IL (state police)
       0153, KKM 248  35.58  Oklahoma City, OK (pager, 500 w)

from San Antonio, TX:

2-18: 0159, KMD 344   35.58  Los Angeles, CA (pager, 493 w)
      0453,    -      35.46  San Diego, CA (mobilephone)
  20: 1709, KGC 223   35.22  Philadelphia, PA (pager)
  21: 0200, KSA 936   39.50  Springfield, IL (sheriff)
      0214, KSB 235   42.56  Maryville, IL (state police)
      0256,    -      35.46  Los Angeles, CA (mobilephone)
      1644, KCC 482   35.22  Concord, NH (pager)
 3-6: 0131, KAB 979   39.90  Falls City, NE (police)
      0139, KAA 204   42.06  St. Joseph, MO (state police)
      0150, KAA 936   39.46  Dodge City, KS (police)
      0211, KAB 309   42.46  Omaha, NE (state police)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Now, my loggings. 30-50 MHz Allied A-2586 with 30-ft indoor random-wire
antenna; 50-MHz, Swan 250 with 3-el Cushcraft horizontal Yagi at 20 ft;
hi-band, Wards 62-1 with 2-ft whip. Unless noted otherwise, all are F2
propagation modes; bs-backscatter. Spanish daily peak noted if 40-MHz
or more. CST used. 50-MHz Es deleted.  New underlined.

1-21: 1231, KGC 223      23: 2240, KHB 41 (tr)      2: 1420, Oakland
      1236, KCC 482      24: 0105, KHB 40 (tr)      3: 1248, KLR 503
      1252, KCC 266      25: 1105, KCC 482             1258, KCA 633
      1255, KCE 457          1120, KEE 720         15: 0050, KHB 33 (tr)
      1259, KCA 695          1138, KCG 651         17: 1400, KCA 695
  22: 0215, KHB 41 (tr)      1155, KCD 555                   KKC 482
      1414, KOA 796      29: 1903, KQD 313 (Es)        1435, KOP 303
      1433, KOK 418          1928, KSJ 815 (Es)        1445, KOA 796
      1456, Eugene      2-2: 1327, Portland            1450, KOK 418
      1501, KOG 634          1328, KOA 796             1457, KCB 897
      1507, KOA 748          1334, KOK 418             1501, KOG 634
VHF RADIO                       Page 3                        APRIL 1972

17: 1502, KCD 473         28: 1316, KOH 894        7: 1140, KIN 645 (Es)
    1515, KCE 518             1325, KCD 395           1211, KCC 482
18: 1044, KQD 313 (Es)        1330, KCC 825           1218, KOA 796
    1052, KFJ 891 (Es)              KDA 383           1222, KCB 897
    1125, KCC 482             1348, KCA 695           1228, Eugene
    1137, KSC 645 (Es)        1405, 43-Spanish        1257, KOP 303
    1159, KCC 748             1407, KCC 482           1410, XE1PY (bs)
    1200, KCA 378             1430, KCG 651           1445, WB5AEH (bs)
    1216, KCB 897             1530, KCD 498           1540, KOK 418
    1240, KCD 753             1600, KOA 748           1550, KOG 634
    1244, KCE 518             1601, KCC 907           1640, KIY 757 (Es)
    1300, KCA 695        3-2: 1340, KOP 303           1650, KIG 300 (Es)
    1320, KCE 584             1342, KOA 796           1700, KKQ 846 (Es)
    1326, KCE 579             1346, Portland          1735, LU6--
    1328, KCD 244             1415, 46-Spanish     8: 1031, KQD 609 (Es)
    1910, KMA 829 (Es)        1700, Eugene            1056, KSJ 815 (Es)
    2030, KQT 263 (Es)        1701, KOG 634           1305, KCC 482
    2040, KFL 936 (Es)     3: 1223, Eugene            1333, KCB 897
    2218, L Beach (Es)        1236, KOK 418           1350, KCD 244
19: 1058, L Beach (Es)        1243, Roseburg          1357, L Beach (Es)
    1114, KFL 936 (Es)        1353, 45-Spanish        1400, KCA 695
20: 1941, KSJ 815 (Es)        2036, KQD 607 (Es)      1415, KMA 829 (Es)
    1946, KSD 326 (Es)        2052, KSC 645 (Es)      1446, KOA 796
          KSC 645 (Es)        2056, KSJ 815 (Es)            KOK 418
    2053, OK City (Es)              KQD 609 (Es)      1449, Salem 
    2147, L Beach (Es)     4: 1326, KCC 482           1459, Eugene
21: 1040, KCC 482             1330, KCE 518           1500, KOG 634
          42-Spanish          1400, KCA 695           1536, KIN 645 (Es)
    1059, KCH 954             1458, KOP 303           1635, 45-Spanish
    1100, KCD 582             1520, 46.5-Spanish      1640, KIY 508 (Es)
    1220, KCF 308             1535, KOA 796           1810, KIY 757 (Es)
22: 1415, KCC 482             1538, Eugene            1828, KIG 300 (Es)
26: 1206, KCA 693             1539, KOK 418        9: 0005, KSC 645 (Es) 
    1225, KCF 313          5: 1442, HK3OK             0145, KFJ 891 (Es)
    1230, KOG 634             1538, L Beach (Es)      1130, KIG 300 (Es)
    1323, KOA 796             1544, KME 438 (Es)      1520, 42-Spanish
    1325, 43-Spanish          1850, KIY 508 (Es)      2026, L Beach (Es)
    1329, KOP 303             1950, OK City (Es)  10: 1305, KIY 508 (Es)
    1340, Portland            2002, KAI 927 (Es)  12: 1613, KFL 936 (bs)
27: 1210, KCC 482          6: 1346, KAI 927 (Es)      1630, 44-Spanish
    1215, KCB 217             1445, 48.8-Spanish      1635, KKV 690 (bs)
    1216, KCF 569          7: 1028, KIY 508 (Es)  (add: 3-7: 1259, KCA695
    1219, KCE 518             1045, WA5HNK (bs)           9: 1047, KSD326
    1700, KGL 710             1120, Scranton                       (Es)  )
28: 1300, KOG 634             1123, KGC 223  
--------------------------------------------------------------------------
HK3OK    50.1   Bogota, Colombia      KCD 395  33.90  Brooklyn, CT-f
KAI 927  35.34  Denver, CO            KCD 498  33.70  Sandwich, MA-f
KCA 378  33 /   New Haven, CT-f       KCD 555  33.90  Lyme, CT-f
KCA 633  33.90  Middleboro, MA-f      KCD 582  33.70  Harvard, MA-f
KCA 693  33.90  W Wareham, MA-f       KCD 753  33.90  Putnam, CT-f
KCA 695  33.78  Manchester, NH-f      KCE 457  33 /   Newton, CT-f
KCB 217  33.90  East Lyme, CT-f       KCE 518  33.86  Shelton, CT-f
KCB 897  35.66  Portland, ME          KCE 579  33.78  Westmoreland, NH-f
KCC 266  35.58  Springfield, MA       KCE 584  33.90  Poquonock Br, CT-f
KCC 748  33.94  Windsor, CT-f         KCF 308  33.66  N Reading, MA-f
KCC 825  33.70  Kennebunk, ME-f       KCF 313  33.66  Andover, MA-f
KCC 907  33.70  Blue Hill, ME-f       KCF 569  33 /   Tolland, CT-f
KCD 244  33.70  Falmouth, MA-f        KCG 651  33.70  Derby, Ct-f
VHF RADIO                     Page 4                       APRIL 1972

KCH 954  33.70  N Branford, CT-f     KOH 894  33.70  Winslow, WA-cf
KDA 383  33.90  Milford, NH-f        KOK 418  35 /   WA or OR
KEE 720  33.78  Millburn, NJ-f       KOP 303  35.46  Langley, WA-mp
KFJ 891  35 /   Columbus, OH         KQD 313  35.50  Dayton, OH
KGL 710  31.02  New York, NY-t       KQD 607  35.50  Grand Rapids, MI
KHB 33  162.55  Brownsville, TX-w    KQD 609  35.22  Lansing, MI
KHB 40  162.55  Galveston, TX-w      KQT 263  35 /   Las Vegas, NV-ho
KHB 41  162.55  C. Christi, TX-w     KSC 645  35.58  Chicago, IL
KIG 300  43.58  Atlanta, GA          KSD 326  35.58  Indianapolis, IN
KIN 645  35.22  Miami, FL            KSJ 815  35.22  Fort Wayne, IN
KIY 508  35.22  Orlando, FL          LU6--    50.11  Buenos Aires, Arg.
KIY 757  35.22  Montgomery, AL       WB5AEH   50.1   Metairie, LA
KKQ 846  33.94  Marrero, LA-f        WA5HNK   50.1   Rosharon, TX
KKV 690  35.62  Houston, TX          XE1PY    50.1   nr Mexico City
KLR 503  35.22  Boston, MA-h            -     35.26  Eugene, OR-mp
KMA 829  35.22  San Diego, CA           -     35.46  Oakland, CA-mp
KME 438  35.22  Orange, CA              -     35.26  Portland, OR-mp
KOA 748  33.90  Seattle, WA-f           -     35.26  Roseburg, OR-mp
KOA 796  35.58  Portland, OR            -     35.26  Salem, OR-mp
KOG 634  33.82  Kent, WA-f              -     35.58  Scranton, PA

f-fire, c-county; mp-mobile phone; h-hospital; ho-hotel; t-transit;
w-weather; rest 35 and 43 are pagers; 50-MHz are amateur stations.

A2 tone ID's used by: KAI 927, KCB 897, KFJ 891, KFL 936, KIN 645,
KKV 690, KMA 829, KME 438, KOK 418, KOP 303, KQD 313, KQD 607, KQD 609,
KSC 645, KSD 326, and KSJ 815
------------------------------------------------------------------------
A very strong increase in solar activity the last month or so has
provided an unexpectedly high amount of F2 MUF levels up to 50 MHz.
If previously active regions return later in March-April we may be
treated wIth similar happenings. Also, Es levels in the first part
of March got to extremely high levels -- once with a theoretical
MUF in the 120-MHz range.
                               --------
Again, for the benefit or any new members unfamiliar with the mode
of propagation known as backscatter (bs), a brief discussion follows.

To get backscatter the F2 or Es MUF must be high enough to provIde a
direct path to some distant point. Once the signal has reached that
point the majority of it continues in a forward direction. However,
some of the signal is scattered in other directions by the ground (or
ocean) and a very tiny fraction is able to return back in the general
direction it came from via the ionosphere. Thus on 50-MHz in TX it is
possible to get CA and FL from the south. Total path lengths may come
toas high as 8 or 9,000 miles or more. Signals always exhibit a hollow
or fluttery sound due to the multiple paths involved. Strengths may
be 30 or 40 db below what a direct F2 path might provide.

Backscatter does occur with Es but due to the lower layer heights,
the range of distances is limited. Also due to the higher density of
neutral atoms in the E-region, the more frequent electron collisions
result in greater absorption and therefore weaker signals than with F2.
With Es there has been noted direct backscatter from the ionization 
proper and not involving a ground reflection at a more distant point.


                                         73, Pat   WA5IYX/5