ID Numbering Procedures
- Draw out base with coax numbered clock wise starting at leg closest to
north
- Climbing personal should determine with the help of one person on the
ground to verify heights of antenna, type of antenna, azimuth of antenna,
leg, coax size, type of mount
- Combiners/ splitters and tag coax using base numbers, of all coax and
antenna.
Numbers at the base of the tower will also give a starting number to chase
coax into the building. Use simple numbers on the tower that can be made in
advance 1,2,3,4,5 etc
- Follow each coax to transmitter documenting all combiners/cross band
couplers etc. Use form TA-101 (this form can also be used for Intermod-MPE
information)
- Temporarily tagging with corresponding tower number at building ingress/egress,
different rooms ingress/egress, combiners etc and then transmitter.
- Identify and document coax size, make, model, frequency, of all equipment,
TX, RX, dummy load, etc Use form TA-101
- Draw a rendering of room with location of equipment, then assigning a
room number, row letter of equipment etc. (example, room 4- row A- position
5 combiner-C-tower coax 15) stat in NW corner of building and then rooms
for ID schematics
- Enter information into Tower Audit spreadsheet at the site. Doing this
as you go will insure that all information that is available can be obtained.
- Draw a rendering of each tower coax number as such:

Permanent Tagging of Coax and Equipment Numbering System (If
Applicable)
- FCC structure number (last three digits)
- Room number of equipment numerically based on drawing of building layout
- Row of equipment if applicable based on drawing of room layout, (alphabetically)
- Position of equipment numerically, if in a rack configuration
- Note if combiner, C cross band coupler CB duplexer D etc
- Coax number used at the base of tower.
- Height of antenna on tower
- Type of antenna
- Azimuth of antenna
- Bar Code
Example of Tag: