Specifications

There are four major types of radio checks performed by the radio room.
Radio serviceability checks
Signal Strength Report Readability Report
1 – Very weak signal 1 - Unreadable
2 - Weak signal 2 - Barely readable
3 - Fair signal 3 - Readable with slight difficulty
4 - Moderately strong signal 4 - Readable without difficulty
5 – Very strong 5 - Perfectly readable
Examples:
Bravo Foxtrot 8 9 3 this is Bravo Foxtrot Base, RADIO CHECK, over.
Bravo Foxtrot Base this is Bravo Foxtrot 8 9 3 you are strength 5, readability 4 Over.
This is Bravo Foxtrot Base, you are strength 4, readability 5, out.
India Foxtrot Mobile 3 6 0 1 this is Bravo Sierra Base, RADIO CHECK, over.
Bravo Sierra Base this is India Foxtrot Mobile 3 6 0 1, you are strength 4, readability
5, over.
This is Bravo Foxtrot Base, you are strength 4, readability 3, out.
Note: The term “loud and clear” is acceptable for a report when the signal strength
is 5 and readability is 5.
Example:
Bravo Foxtrot Base this is Bravo Foxtrot 8 9 3 RADIO CHECK, over.
Bravo Foxtrot 8 9 3 this is Bravo Foxtrot Base, you are loud and clear, out.
If radio users are unsure of the numbering system for signal strength/readability
reports, then consideration should be given to using the following three plain
language radio check reports
Loud And Clear (5 x 5) = Good communications
Weak but Readable (2 x 3) = Fair communications
Weak and Unreadable (2 x 1) = Poor communications
Note: In the event of poor communications, another channel/frequency should be
selected by both parties to ensure successful communications take place.
Radio Operators Training Manual Version 27/11/2007 49