What is even funnier is that after 4 years, 72 Mhz is still here.</p>

</p>

As for the original poster's question as to color coding for the flags, I can't find the regulations on it but the colored flags were used on the 27Mhz, 50Mhz, and 53 Mhz bands.  They followed the electronics designations for their number layout.</p>

</p>

(0) black</p>

(1) brown</p>

(2) red</p>

(3) orange</p>

(4) yellow</p>

(5) green</p>

(6) blue</p>

(7) violet</p>

(8) grey</p>

(9) white</p>

</p>

And the memory jogger.  Bad Boys Ravage Only Young Girls But Violet Gives Willingly.</p>