Skip to main content
Home

Main navigation

  • REC Home
  • Apply
    • REC Services Rate Card & Policies
    • LPFM Construction Completed
    • LPFM License Modification
    • New FM Booster Station
    • New Class D FM Station in Alaska
    • New Low Power FM (LPFM) Station
  • Initiatives
    • RM-11846: Rural NCE Stations
    • RM-11909: LP-250 / Simple 250
    • WIDE-FM
    • RM-11952: Translator Reform
    • RM-11843: 8 Meter Ham Band
    • PACE - LPFM Compliance
  • Services
  • Tools
    • Today's FCC Activity
    • Broadcast Data Query
    • Field strength curves
    • Runway slope
    • Tower finder
    • FM MODEL-RF Exposure Study
    • More tools
    • Developers - API
  • LPFM
    • Learn about LPFM
      • Basics of LPFM
      • Self Inspection Checklist
      • Underwriting Compliance Guide
      • Frequently Asked Questions
      • FCC Rules for LPFM
      • HD Radio for LPFM
      • Transmitters certified for LPFM
      • Interference from FM translators
      • RadioDNS for LPFM Stations
    • 2023 Window REC Client Portal
    • myLPFM - LPFM Station Management
    • LPFM Station Directory
    • Spare call signs
    • REC PACE Program
    • More about LPFM
  • Reference
    • Pending FCC Applications
    • FCC Filing Fees
    • Radio License Renewal Deadlines
    • FCC Record/FCC Reports
    • Pirate Radio Enforcement Data
    • Premises Info System (PREMIS)
    • ITU and other international documents
    • Recent FCC Callsign Activity
    • FCC Enforcement Actions
    • Federal Register
    • Recent CAP/Weather Alerts
    • Legal Unlicensed Broadcasting
    • More reference tools
  • LPFM Window
  • About
    • REC in the Media
    • Supporting REC's Efforts
    • Recommendations
    • FCC Filings and Presentations
    • Our Jingles
    • REC Radio History Project
    • Delmarva FM / Riverton Radio Project
    • J1 Radio / Japanese Broadcasting
    • Japan Earthquake Data
    • REC Systems Status
    • eLMS: Enhanced LMS Data Project
    • Open Data at REC
    • Our Objectives
  • Contact

Breadcrumb

  • Home
  • eLMS: Second and third-adjacent channel short-spacing/overlap

Operational Status

Michi on YouTube

Most popular

fcc.today - real time updates on application activity from the FCC Media Bureau.  fccdata.org - the internet's most comprehensive FCC database lookup tool.  myLPFM.com - Low Power FM channel search and station management tool.  REC Broadcast Services - professional LPFM and FM translator filing services. 

Other tools & info

  • Filing Window Tracking
  • Enforcement Actions
  • REC Advisory Letters
  • FAQ-Knowledge Base
  • U/D Ratio Calculator
  • Propagation Curves
  • Runway Slope/REC TOWAIR
  • Coordinate Conversion
  • PREMIS: Address Profile
  • Spare Call Sign List
  • FCC (commercial) filing fees
  • Class D FM stations in Alaska
  • ARRR: Pirate radio notices
  • Unlicensed broadcasting (part 15)
  • FMmap - broadcast atlas
  • Federal Register
  • Rate Card & Policies
  • REC system status
  • Server Status
  • Complete site index
Cirrus Streaming - Radio Streaming Services - Podcasting & On-demand - Mobile Apps - Advertising

eLMS: Second and third-adjacent channel short-spacing/overlap

By admin | 8:16 AM EDT, Mon July 08, 2024

eLMS has added two new report runs that will check filed applications to determine if either:

  • For LPFM applications with engineering, whether there is a §73.807 short-spaced second-adjacent channel facility record; or
  • For FM Translator applications with engineering, whether there is prohibited overlap of another facility record on second or third adjacent channels thus requiring a technical study and a waiver request.

Two new tables have been added to eLMS to support this data:

fx_seco will include the details on second and third-adjacent channel overlapping facilities.

lpfm_seco will include the details on second-adjacent channel short spaced facilities.

Please note that for applications filed on or before July 5, 2024, the data will include all short-spacings and overlaps as of July 5, 2024.  Going forward, eLMS will run these two reports overnight and data included will only include short-spaced or overlapped facilities at the time of the run.  Subsequent short-spaced and overlapping relationships will not be included.  

Data items collected in these tables include:

  • Details on each facility so they can be referenced to and from other eLMS tables;
  • The type of channel adjacency (for FM Translators);
  • The required §73.807 distance (for LPFM);
  • The distance between both facilities;
  • The arriving service contour at the short-spaced or overlapped secondary facility;
  • Determination of overlap; and
  • The distance of the "overlap zone", which is the area surrounding the LPFM or FM Translator facility's antenna that must be protected using the 40 dB undesired to desired ratio method.

 

REC Essentials

  • FCC.TODAY
  • FCCdata.org
  • myLPFM Station Management
  • REC site map

The More You Know...

  • Unlicensed Broadcasting
  • Class D Stations for Alaska
  • Broadcasting in Japan
  • Our Jingles

Other REC sites

  • J1 Radio
  • REC Delmarva FM
  • Japan Earthquake Information
  • API for developers

But wait, there's more!

  • Join NFCB
  • Pacifica Network
  • LPFM Wiki
  • Report a bug with an REC system

Copyright © REC Networks - All Rights Reserved
EU cookie policy

Please show your support by using the Ko-Fi link at the bottom of the page. Thank you for supporting REC's efforts!