Speg's 2012 Broadcast FM DX Log

Capitalized items are what were heard on the air to identify the station. Distances are in miles.
Red call letters indicate new stations. Tan call letters indicate new stations this year.
Explanation about estimation of critical frequency and electron density is at bottom of page.
Unidentified or unconfirmed list

             2012 Es
Days:                   5
Es Contacts:           38
 Different Stations:   38
 New Stations:         20
States:                12 (FL GA MD MI MT ND NJ PA SC TN VA WV) + DC
Canadian Provinces:     2 (MB ON)
Mexican States:         0
Countries:              2 (CN US)


July 24, 2012 (Es) from Norman OK 
Est. Critical Freq: 21.49 MHz.    Est. Electron Density: 5.72 x 10¹² /m³ (based on wjtt)
pre dinner: 540-703 pm. after dinner: 800-835 pm

 FREQ  CALL      Time  Dist    ST City                  Format         Other information

 92.9  wcwv     544 pm  952    WV SUMMERSVILLE          STHRN GOSPEL   AREA ADS
 92.9  WEGX     822 pm 1027    sc dillon                COUNTRY        RDS: WEGX
 93.9  WKYS     547 pm 1147    dc washington            URBAN
 93.9  wmtm-fm  825 pm  835    ga MOULTRIE                             AREA ADS
 94.3  WJTT     823 pm  685    TN red bank              URBAN          CHATTANOOGA AREA
 94.3  wcmg     824 pm 1017    sc latta                 ROCK           WEBSTREAM MATCH
 95.5  WPGC-fm  648 pm 1156    md morningside                          DC AREA
 95.7  wsww-fm  550 pm  958    WV craigsville                          3WS. AREA REFERENCES
 96.7  wcei-fm  556 pm 1200    md EASTON                               AREA ADS
 96.7  chvr     815 pm 1283 cn on pembroke              COUNTRY        STAR 96
 97.1  wash     552 pm 1148    dc washington                           STREAM MATCH
100.9  wzst     654 pm 1003    wv westover                             VARIETY 101
102.3  WAIV     557 pm 1266    NJ cape may                             JERSEY SHORE/ATLANTIC CITY REFERENCES
102.3  WFBY     703 pm  976    wv weston                CLASSIC ROCK   ALICE COOPER. WEBSTREAM MATCH
103.3  cboq     807 pm 1332 cn on ottawa                               CBC
104.5  wrff     632 pm 1255    pa philadelphia          MODERN ROCK    STREAM MATCH
104.7  WAYZ     559 pm 1132    md HAGERSTOWN
105.3  WFRB-FM  602 pm 1056    md frostburg             COUNTRY        [again at 643p RDS: WFRM FM]
105.3  ciss     805 pm 1332 cn on ottawa                               WEBSTREAM MATCH
105.9  WMAL     604 pm 1139    va woodbridge                           DC AREA
106.1  wisx     642 pm 1258    pa PHILADELPHIA          HOT AC
106.5  wwlw     628 pm  972    wv CLARKSBURG            SOFT AC        MAGIC 106.5
106.9  ckqb     617 pm 1332 cn on ottawa                ROCK           THE BEAR [again at 802 pm]
106.9  wwiq     619 pm 1261    nj camden                TALK           PHILLY AREA> IQ-106.9. WEB MATCH
106.9  wweg     624 pm 1124    md myersville            CLASSIC HITS   WEBSTREAM MATCH
107.3  wrqx     607 pm 1148    DC WASHINGTON            HOT AC         WEBSTREAM MATCH
107.3  wpur     614 pm 1291    NJ atlantic city
107.5  wbyn-fm  633 pm 1237    pa boyertown             RELIGIOUS      WEBSTREAM MATCH. way under krxo slop
107.9  wlzl     609 pm 1170    md annapolis             SPANISH        WEBSTREAM MATCH

July 21, 2012 (Es) from Norman OK 
Est. Critical Freq: 19.45 MHz.    Est. Electron Density: 4.69 x 10¹² /m³ (based on wday)


 FREQ  CALL      Time  Dist    ST City                  Format         Other information

 91.1  ckxl     423 pm 1003 CN mb st. boniface          FRENCH MUSIC   WEBSTREAM MATCH
 91.5  ciwm     419 pm 1047 CN MB brandon               COUNTRY        MANITOBA/AREA WX.
 93.7  wday     429 pm  813    nd fargo                 TOP 40         Y-94. WEBSTREAM MATCH

July 9, 2012 (Es) from Norman OK 
Est. Critical Freq: 18.18 MHz.    Est. Electron Density: 4.10 x 10¹² /m³ (based on wbtp)


 FREQ  CALL      Time  Dist    ST City                  Format         Other information

 94.3  WZZR     956 am 1180    fl riviera beach         TALK           REAL RADIO
 95.7  wbtp    1006 am 1008    fl clearwater            urban          (WEB STREAM MATCH)

July 8, 2012 (Es) from Norman OK 
Est. Critical Freq: 17.20 MHz.    Est. Electron Density: 3.67 x 10¹² /m³ 


 FREQ  CALL      Time  Dist    ST City                  Format         Other information

 94.3  cblu     527 pm 1183 CN on huntsville            PUBLIC         CBC. [likely cblu]

May 31, 2012 (Es) from Norman OK 
Est. Critical Freq: 19.13 MHz.    Est. Electron Density: 4.54 x 10¹² /m³ (based on kyyy)


 FREQ  CALL      Time  Dist    ST City                  Format         Other information

 92.9  kyyy     134 pm  826    ND Bismarck              ac             Y-93
 93.9  WNBY-fm 1126 am 1005    MI NEWBERRY              OLDIES         OLDIES 93. SAULT STE MARIE REFERENCES
 94.1  krkx     133 pm  927    mt billings              COUNTRY        K-SKY

The critical frequency and electron density of the sporadic-E layer are estimated by calculating the minimum values to allow the reflection of the radio waves from the station requiring the highest critical frequency of the broadcast frequencies and distances observed. The following assumptions are used: (1) The height of the Es layer is 105 km, and (2) constant (no tilt), and that (3) the signal is affected only by the Es layer and not the temperature profile or weather in the elevations below the Es layer. Given otherwise similar parameters, the signal needing the highest critical frequency and electron density of the Es layer are those of shorter reflection distances or higher broadcast frequencies. The values listed were derived mathematically, but the 105 km height was used to compare values to the PROPLAB-PRO radio propagation computer program (which agreed reasonably well).