Cleans up radio frequency numbers.

Replaces magic numbers across the code base with proper constants.
Prepares for the ability to have more than one antag channel in the future.
Corrects a lie.

code/modules/research/message_server.dm

@@ -216,7 +216,6 @@ var/obj/machinery/blackbox_recorder/blackbox
 	var/list/msg_security = list()
 	var/list/msg_deathsquad = list()
 	var/list/msg_syndicate = list()
-	var/list/msg_mining = list()
 	var/list/msg_cargo = list()
 
 	var/list/datum/feedback_variable/feedback = new()
@@ -241,7 +240,6 @@ var/obj/machinery/blackbox_recorder/blackbox
 		BR.msg_security = msg_security
 		BR.msg_deathsquad = msg_deathsquad
 		BR.msg_syndicate = msg_syndicate
-		BR.msg_mining = msg_mining
 		BR.msg_cargo = msg_cargo
 		BR.feedback = feedback
 		BR.messages = messages
@@ -282,7 +280,6 @@ var/obj/machinery/blackbox_recorder/blackbox
 	feedback_add_details("radio_usage","SEC-[msg_security.len]")
 	feedback_add_details("radio_usage","DTH-[msg_deathsquad.len]")
 	feedback_add_details("radio_usage","SYN-[msg_syndicate.len]")
-	feedback_add_details("radio_usage","MIN-[msg_mining.len]")
 	feedback_add_details("radio_usage","CAR-[msg_cargo.len]")
 	feedback_add_details("radio_usage","OTH-[messages.len]")
 	feedback_add_details("radio_usage","PDA-[pda_msg_amt]")

code/modules/research/xenoarchaeology/tools/tools_locater.dm

@@ -8,7 +8,7 @@
 	icon = 'icons/obj/device.dmi'
 	icon_state = "pinoff"	//pinonfar, pinonmedium, pinonclose, pinondirect, pinonnull
 	item_state = "electronic"
-	var/frequency = 1459
+	var/frequency = PUB_FREQ
 	var/scan_ticks = 0
 	var/obj/item/device/radio/target_radio