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Monday, April 25, 2016

What's On The Mediumwaves (Daytime)

Here are some interesting statistics compiled today using the FCC database 04-25-2016. All data are for US licensed stations in the DAYTIME and UNLIMITED services. Stations outside the continental US (Hawaii, Alaska, Puerto Rico, etc.) are also included.

DAYTIME AND UNLIMITED STATION DETAILS REPORT

Separate facilities: 4,672 (includes SILENT facilities)

Notes:

(U) = UNLIMITED
(D) = DAYTIME

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(CL) Current, License records: 4,672

UNLIMITED: 781
DAYTIME: 3,891

IBOC UNLIMITED: 53 registered
IBOC DAYTIME: 187 registered

Class A: 73
Class B: 1,747
Class C: 997
Class D: 1,855

W-Call Signs: 2,784
K-Call Signs: 1,888

Services above band center (1115 KHz): 3,128
Services below band center (1115 KHz): 1,544

East of St. Louis, MO: 2,711
West of St. Louis, MO: 1,961

Quadrant 1 (NE) from St. Louis, MO: 1,169
Quadrant 2 (SE) from St. Louis, MO: 1,542
Quadrant 3 (SW) from St. Louis, MO: 1,007
Quadrant 4 (NW) from St. Louis, MO: 954

Combined power (watts): 27,924,750

Total towers: 7,054

Tallest tower: 951 feet (290 meters) (D)WKY-930.000 (0.899 wavelength)
Shortest tower: 50 feet (15 meters) (D)KJNT-1490.000 (0.076 wavelength)

Towers taller than 225° (0.625 wavelength or 5/8 wave): 42 (D)WGKA-920.000 (D)WKY-930.000 (U)KDKA-1020.000 (D)WHO-1040.000 (D)KMTA-1050.000 (D)WZOT-1220.000 (D)KWIX-1230.000 (U)WBVP-1230.000 (D)WJOI-1230.000 (D)KTAM-1240.000 (D)WGVM-1260.000 (D)WIJD-1270.000 (D)WKLJ-1290.000 (D)KTCK-1310.000 (D)WAGF-1320.000 (U)KDTD-1340.000 (U)KSEK-1340.000 (D)KRMD-1340.000 (U)WXKX-1340.000 (D)WLOU-1350.000 (D)KMJM-1360.000 (D)WSTC-1400.000 (U)KMNV-1400.000 (D)KKLO-1410.000 (D)WAOC-1420.000 (D)WPRS-1440.000 (D)KKXL-1440.000 (D)WMBD-1470.000 (U)WSIP-1490.000 (U)WOMI-1490.000 (U)WKLQ-1490.000 (D)KSTP-1500.000 (D)WLGN-1510.000 (D)KOLM-1520.000 (D)KFBK-1530.000 (D)WJZI-1540.000 (D)WSLA-1560.000 (D)WTAY-1570.000 (D)WBGZ-1570.000 (D)WFUR-1570.000 (D)WBCP-1580.000 (D)KTIQ-1660.000

Towers shorter than 36° (0.100 wavelength or 1/10 wave): 6 (D)KAPS-660.000 (D)KCFM-1250.000 (D)WKCY-1300.000 (D)KFJL-1400.000 (D)KBZY-1490.000 (D)KJNT-1490.000

Towers taller than 750ft: 5 (D)WNAX-570.000 (D)KMJ-580.000 (U)WSM-650.000 (D)WKY-930.000 (D)WHO-1040.000

Towers shorter than 75ft: 11 (D)KCFM-1250.000 (D)WKCY-1300.000 (D)KFJL-1400.000 (D)WZBR-1410.000 (D)WLUX-1450.000 (D)WIRB-1490.000 (D)KLZN-1490.000 (D)KBZY-1490.000 (D)KJNT-1490.000 (D)KVOG-1530.000 (D)WPDC-1600.000

Total of all tower heights: 1,748,752 feet (533,020 meters)

Greatest tower spacing with respect to array reference point: 2,246 feet (685 meters) (D)KNFL-730.000 (1.667 wavelength)
Closest tower spacing with respect to array reference point: 10 feet (3 meters) (D)WBRD-1420.000 (0.014 wavelength)

Tower type 1 count: 6,555 normal mast
Tower type 2 count: 489 top loaded
Tower type 3 count: 4 sectionalized, top loaded (U)KNBR-680.000 (U)KDKA-1020.000 (D)WHO-1040.000 (D)WOC-1420.000
Tower type 4 count: 6 sectionalized, not top loaded (D)WKY-930.000 (D)KTTO-970.000 (D)WROK-1440.000 (D)KSTP-1500.000 (D)KFBK-1530.000

Omni-directional arrays (single tower): 3,474
Directional arrays (multi-tower): 1,198

Highest RMSTheoretical mV/m (published) at 1 km: 3545.89 (D)KFBK-1530.000
Lowest RMSTheoretical mV/m (published) at 1 km: 140.82 (D)WCTA-810.000

Single tower lowest gain in dB (calculated): -3.743 (D)WSEV-930.000 (rms standard)
Single tower lowest mV/m at 1 km (calculated): 133.805 (D)KOBO-1450.000 (rms standard)
Single tower highest gain in dB (calculated): 4.899 (D)KSTP-1500.000 (rms standard)
Single tower highest mV/m at 1 km (calculated): 3800.424 (D)KSTP-1500.000 (rms standard)

Multi-tower deepest array notch in dB (calculated): -30.534 (U)WKGE-850.000 (rms standard)
Multi-tower deepest array notch in mV/m at 1 km (calculated): 10.5 (D)WAKY-620.000 (rms standard)
Multi tower highest array gain in dB (calculated): 11.988 (D)KGOW-1560.000 (rms standard)
Multi tower highest array mV/m at 1 km (calculated): 8244.295 (D)KGOW-1560.000 (rms standard)

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