Broadcast engineering formulas and information

I tend to leave broadcast engineering to the engineers (and recommend that practice highly). But if your expertise runs a little deeper, you might be interested in the "Engineering Formulas & Information" section on Graham Brock's website:

http://www.grahambrock.com/eng_info.htm

Here is the list they provide:

• Ohms Law
• Simple Conversions
• T & H Pad Calculator
• Property Requirements for Standard Guyed Towers
• Property Requirements for an AM Ground System
• Ballast Formula for Non-Penetrating Roof Mounts
• Audio Terms used to descripe Audio Sound

Good luck with that!

George
Media Services Group

How far does that radio station reach?

If you've ever wondered about the real service area of an FM radio station, here is a chart which shows the 70 dBu ("City Grade") and 60 dBu contour mileages, assuming various antenna heights: http://216.134.214.83/articles/Avg%20%20FM%20Service%20Ranges[1].pdf


Thanks to Jeff Brock, consulting engineer at Graham Brock for updating my chart! http://www.grahambrock.com/


George
Media Services Group

5-step program to a better Public Inspection file (courtesy of Graham Brock)

This is from Graham Brock's website: http://www.grahambrock.com/public_file.htm

"Public Inspection Files have been a sore spot with broadcasters for a long time because no one seems to know what is really supposed to be in it, nor does anyone bother to keep it updated. If you have ever looked at the Rules and tried to determine what is supposed to be in the Public Inspection File, you'll understand why this is such a sore subject. In almost all of the Due Diligence Inspections we do, we find inadequate Public Inspection Files. The most common excuse is, 'Well, I didn't know what went in there.'

So, with that said, we have attempted to compile a "user friendly" Public Inspection File List and have created a 5-Step Program To A Better Public Inspection File. This list has been complied from the FCC's Rules & Regulations, the FCC's Web Site and the FCC's Self-Inspection Checklist. We have tried to be as thorough and as accurate as possible, however, it is your responsibility to contact your Communications Attorney to ensure compliance with the Commission's Rules."

If you're charged with maintaining your station's Public Inspection file, check it out. Call Stu or Jeff with any questions (912) 638-8028.

George
Media Services Group
http://www.mediaservicesgroup.com/location.cfm?id=3