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FM: Spacing Study

The FM Spacing study is designed to test a proposed commercial FM transmitter site with the spacing criteria specified in Section 73.207 of the FCC Rules. The program then searches the database and retrieves all records pertinent to the study. Details of how this study is run is described in Report Details below.View Study Sample

Customers must provide the following information to run this report:

  • Job title
  • Metric or English
  • Exclude/Include translators
  • Class (LP10, LP100, A, B, C0, C1, B1, C2, C3 or FT)
  • Safety zone (distance beyond required separations)
  • Safety dB (if over default)
  • Channel (s) (Commercial band 221-300)
  • Transmitter coordinates

Price: $125.00 (First channel, multiple channel pricing same site/same day available)
To purchase, please call 800.331.5086 or email info@bia.com.

Report Details

For each channel studied the program retrieves all records pertinent to the study. These consist of all geographically close records on the same channel (co-channel), 1, 2 or 3 channels removed (1st, 2nd and 3rd adjacent) and 53 or 54 channels removed (Intermediate Frequency). Records are retained which fall within the diatances specified in the commercial spacing table from the FCC Rules with the addition of the safety zone. If no records are found within this distance for a given channel, the nearest record for that channel is retrieved.

The records are then sorted by channel, and within each channel, by distance to the user-supplied site. The facility record entry on the report is accompanied by a required separation distance, if pertinent.

For the Spacing mode, this value is selected from the appropriate separation table from the FCC Rules. Distinct tables are used for domestic (US), Canadian and Mexican facility records. Also, one table is used for US and Canadian I.F. relationships, and a second one for Mexican I.F. problems.

Customers must provide the following information to run this report:

  • Job title
  • Metric or English
  • Exclude/Include translators
  • Class (LP10, LP100, A, B, C0, C1, B1, C2, C3 or FT)
  • Safety zone (distance beyond required separations)
  • Safety dB (if over default)
  • Channel (s) (Commercial band 221-300)
  • Transmitter coordinates

Price: $125.00 (First channel, multiple channel pricing same site/same day available)
To purchase, please call 800.331.5086 or email info@bia.com.