Pat Dyer
327 Solar Drive
San Antonio, Texas 78227
Deadline: 12th of month
APRIL 1971
This time of year is usually the low-point for Es and the stateside
F2 MUF drops. However, the rising F2 MUF to the south makes up for it.
Hank Holbrook, 7211 Chestnut Street, Chevy Chase, MD 20015 has more
QSLed DX from the Fair Haven, MD cottage. Hank will be using an
SP-600 at Chevy Chase in the future as well. GMT used.
10-31: 1731, KOE 538 39.82 Dillon, MT (sheriff, 500 w)
12-5: 1716, KBM 680 39.18 Benson, AZ (police)
1-17: 1545, KKI 413 42.9 San Antonio, TX (Dpt Pub Safety, 300 w)*
1719, WH-2847 157.3 Chesapk Bay Br,MD (SQUAREHEAD, tug 50w)
(* antenna at 1300' level of 1990' tower 18 miles south of town)
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My loggings now. 30-50 with Allied A-2586 with built-in whip and 30
feet of random indoor wire; 50-MHz Swan-250 with 3-el horizontal
Cushcraft Yagi at 20 feet up. CST used. All F2 unless noted otherwise,
BS-backscatter. 50-MHz Es deleted. New stations underlined.
2-13: 1140, Long Beach (Es) 15: 1158, KCD 344 25: 1432, KMB 305
2002, KAI 927 (Es) 1200, KGB 393 1443, KEG 776
2124, KFL 936 (Es) KGE 831 1445, KCB 217
14: 1233, KCC 482 KCA 695 KCE 475
1242, KCC 266 16: 1355, KCC 482 1500, KGE 450
1251, KOP 303 1400, KCC 266 KEJ 451
1300, KCA 695 45.6 Venezuela 1503, KOG 634
KGC 524 1500, KCA 378 KCD 346
KGC 522 KCA 695 1506, Eugene
KGE 831 1704, KAH 661 (Es) 1513, KOA 748
KGE 450 1714, KQD 607 (Es) 27: 1112, KCC 482
1302, KGE 633 2210, KMA 829 (Es) 28: 1215, KCC 482
1303, KGD 273 17: 1235, KCC 482 1218, KCC 266
1305, Wilkes-Barre 45-Spanish M4: 1359, KEG 722
1318, KGC 755 1241, KCA 591 1400, KCA 695
1323, KCF 801 21: 1350, KOP 303 1402, KCC 482
1443, KGD 596 1500, KCA 695 1410, KCC 944
1500, KGD 270 23: 1803, KOP 303 1415, KLX 592
KGA 361 1815, Eugene 1502, KOG 634
KRG 767 1900, KGL 714 1503, KOA 748
1517, KEJ 451 25: 1412, KCC 266 8: 1230, KIY 508(Es)
1610, WWA 335 Scranton 1250, KIN 645(Es)
15: 1120, KCC 482 1415, W-Barre 11: 1530, 46-Spanish
1155, KCC 266 1420, KCC 482 1540, XE1PY (BS)
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KAH 661 35.22 Minneapolis, MN KCE 475 33.86 Wilton, CT-f
KAI 927 35.58 Colorado KCF 801 33.70 East Haven, CT-f
KCA 378 33 + New Haven, CT-f KEG 722 33.86 Ramsey, NJ-f
KCA 591 33.74 Boston, MA-f KEG 776 33.82 Edison Twp, NJ-f
KCA 695 33.78 Manchester, NH-f KEJ 451 33.78 Toms River, NJ-cf
KCB 217 33.90 East Lyme, CT-f KGA 361 33 + Hyattsville, MD-cf
KCC 266 35.58 Springfield, MA KGB 393 33.90 Wayne, PA-f
KCC 482 35.22 Concord, NH KGC 522 33.78 Georgetown, DE-f
KCC 944 33.70 Torrington, CT-f KGC 524 33.78 Dover, DE-vf
KCD 344 33.94 Blue Hills, CT-f KGC 755 33.90 Lancaster, PA-f
KCD 346 33.90 Tolland, CT-f KGD 270 33.94 Leonardstown, MD-cf
VHF RADIO Page 2 APRIL 1971 KGD 273 33.98 Bel Air, MD-f KOA 748 33.90 Seattle, WA-f KGD 596 33.90 Oxford, PA-f KOG 634 33.82 Kent, WA-f KGE 450 33.98 Allentown, PA-f KOP 303 35 + Washington ? -mp KGE 633 33.90 Harrisburg, PA-f KRG 767 33.90 Easton, MD-cf KGE 831 33.78 Wilmington, DE-cf WWA 335 35.22 San Juan, PR KGL 714 31.10 New York, NY-t XE1PY 50.1+ Morelos, Mexico KIN 645 35.58 Miami, FL - 35.26 Eugene, OR-mp KIY 508 35.22 Orlando, FL - 35.58 Long Beach, CA KMA 829 35.58 California - 35.58 Scranton, PA KMB 305 35.22 San Francisco, CA - 35.22 Wilkes-Barre, PA c-county, f-fire, mp-mobile phone, t-transit, v-volunteer all other 35-MHz stations are paging. A2 tone ID's used by: KAI 927, KFL 936, KIN 645, KMA 829, KMB 305, KOP 303, and KQD 607. xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx The South American F2 spring openings ought to be about at their peak by the time you read this. With the waning sun spot activity this may be the last chance for 50-MHz MUF in that direction for many years. Also in April Es awakens from its winter slow pace. Thus there exists at this time of the year a multitude of Es and F2 propagation paths on VHF. The most common form is the Es-F2 link whereby a nicely placed Es cloud over Mexico can hook up with a South American F2 path. At night, the Es-TE link is worth looking for. However, Es can also act as a shield and cut off what would otherwise be an F2 opening by returning the signal to space. The most likely F2 mode to the south near 50-MHz is what is known as F2F2 (double-hop without intermediate ground reflection) due to the ionospheric tilts near the magnetic equator. Normal double-hop F2 is called 2F2 or F2-F2. Thus an Es-F2 link: F2F2-Es, etc. TE (transequatorial scatter) unlike F2 is not reliably noticed in advance by following the MUF up. 30-MHz may not exhibit TE while 50-MHz has it. There are scores of South American stations on between 35 & 50-MHz. The region around 44-47 MHz is loaded with telephone point-to-point repeaters. More often than not, it seems, stateside stations key these repeaters and provide much of a problem for the rightful users. The most often noted case of this is the Texas Department of Public Safety on 42.9 getting into a Venezuelan or Colombian repeater and being retransmitted near 42 MHz. At times I have heard nearly the whole state keying thru it. If any member has a list of some of these South American low-band VHF stations it would be extremely welcomed by your editor. About the only thing close to an ID I have gotten in nearly 4 years from them has been references to Caracas. I hope a few more reports make it in for the May column. 73, Pat WA5IYX/5