Does the Army use "10-4" in radio commands?

OH MY GOD!!! Any RTO using the 10 codes would have a real long personal talk with me!!

Will Boyd 21 Years a Military Communicator, I can Assure You, No Such Critter used by Us.

There are even large city departments that don't. They would rather that you speak clearly

Sure if you want a one on one with a First Sgt. Or in my case, a knot in the back of the head by a SSgt who overhears. Net protocols are essential when transmitting message and any language outside of that protocol constitutes broken transmissions due to the listener having to decide if the speaker is a legit source. If you're calling in a nine line and use any language outside of what is to be expected it will delay it or cancel it. This means a set of protocols will have to be in place to verify the source communicator to re establish the communication, which could mean that you have to restate the nine. In combat this could be critical, and should at least warrant a boot to the head from a platoon Sgt. Now if you're on commercial traffic and reporting the conditions of the barracks, that scrutiny isn't necessary but it's always a great practice to stay within the protocols. 10-4 is jargon mostly associated with the local security forces to mean what we use "affirmative." Stick with that and you'll be safe.

No. "Roger" is used for acknowledgment, "Over" for allowing the recipient to respond, and "Out" to end the transmission connection. Also, "WILCO" for "will comply" is often used. Other terms used are "Say again," "I say again," and "Wait One," meaning a short pause.

They're not supposed to, but I've heard Soldiers say "10-4" numerous times over the radio while on TOC duty. It never fails to make me chuckle.

It depends as a MP in th 80's we would use a bastardized 10 code but generally we would ise plain english

One thing to keep in mind is often times when transmitting voice over electronic communication it's hard to decipher some words like stop and step. So having a system of protocols helps to process the transmission within a set of established phonetics that leave very little to the imagination. Prime example is the phonetic alphabet used in military transition. It enhances communication and eliminates confusion. Anything outside of the protocol does the opposite.

Military police use 10-code. :-)