Adds Radio Jammers

code/game/objects/items/devices/radio/radio.dm

@@ -332,6 +332,12 @@ var/global/list/default_medbay_channels = list(
 	var/datum/radio_frequency/connection = message_mode
 	var/turf/position = get_turf(src)
 
+	var/jammed = FALSE
+	for(var/obj/item/device/jammer/jammer in active_jammers)
+		if(get_dist(position, get_turf(jammer)) < jammer.range)
+			jammed = TRUE
+			break
+
 	//#### Tagging the signal with all appropriate identity values ####//
 
 	// ||-- The mob's name identity --||
@@ -345,6 +351,9 @@ var/global/list/default_medbay_channels = list(
 
 	var/jobname // the mob's "job"
 
+	if(jammed)
+		message = Gibberish(message, 100)
+
 	// --- Human: use their actual job ---
 	if(ishuman(M))
 		var/mob/living/carbon/human/H = M

code/game/objects/items/devices/traitordevices.dm

@@ -146,3 +146,22 @@ effective or pretty fucking useless.
 	attack_self(usr)
 	add_fingerprint(usr)
 	return
+
+/obj/item/device/jammer
+	name = "radio jammer"
+	desc = "Device used to disrupt nearby radio communication."
+	icon_state = "jammer"
+	var/active = FALSE
+	var/range = 12
+
+/obj/item/device/jammer/Destroy()
+	active_jammers -= src
+	return ..()
+
+/obj/item/device/jammer/attack_self(mob/user)
+	to_chat(user,"<span class='notice'>You [active ? "deactivate" : "activate"] the [src]<span>")
+	active = !active
+	if(active)
+		active_jammers |= src
+	else
+		active_jammers -= src