Hi all. No, you can not enter frequencies from the Mic on a TM241. The only way you can tell what frequency you are on, is by a button I believe on the bottom right of the radio. I don't know what this function is for, but it will play a series of tones, for the frequency, from lower to higher in pitch, depending on the digit. You have to have farely good pitch to memorize the pitch of each digit, but it can be done. It has been several years since I messed with a 241, so I can't be any more spicific than that. I believe it also beeped, when you got back to memory 0, or 1. Hope this helps: John ________________________________________________________________ The best thing to hit the internet in years - Juno SpeedBand! Surf the web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today!