Detector (Sign)

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Detector & Radar display Active showing Compass style directions.

Detector - Passive Sensor

  • Transmission Type: Passive, radar and radio wave detection
  • Detection Types: Ships, Aircraft, Tanks, Surfaced Submarines...cannot detect Submerged Submarines
  • Cost: $150
  • Controls: Automated, It on when vehicle is activated
  • Range: Long Range
  • Signal strength factors: Distance to target
  • Limitations: Detector will not work underwater. If equipped on a submarine that dives, the detectors will automatically be disabled, and will not turn back on until after the submarine surfaces. Vehicles that do not have radar, or has their radar turned off, and are not making radio transmissions, will be invisible to the detector.


The detector sign is a less powerful sensor, which is meant to seek out active vehicles which are using either or both Radio (signs) or Radar (signs). The sign is used as alternate means to vehicles (and bases using Generator Signs) when it's equipment is actively ON. Detectors are related to the Radar signs, which Radar signs are active while Detector is passive.


A detector is a sensor that incorporates both a radar and radio emission detector. In real life there was a wide variety of types of sensors and instruments that were used to fulfill this role...however on NavalClash they have all been simplified and packaged into the single detector sensor.

Radar, as described above, essentially consists of two parts...a transmitter that sends out the radio wave energy...and a receiver that detects the "echo" (the reflected radio wave). Well what if the target ship that is getting hit with the radar wave is equipped with just the receiver-part of the radar system? That would allow it to detect the radar wave that it is getting hit with from the other ship...right? It can be useful information to know when someone out on the ocean is using a radar! That is essentially the idea behind the detector.

These detectors can provide a bearing...which way the emission is coming from. They can't directly tell you how far away a target is...however it can be roughly estimated based on the strength of the signal.

Basics of a Detector

  • When Detector is Active 
    The sign essentially represents a "Real Radar Picture on Wikipedia" where 0 degrees represents what is in front of your vehicle. 90 degrees is to the right of your vehicle, 180 degrees is behind your vehicle, and 270 is to the left.
Detector display Active showing Compass style directions. Zero "0" is always forwards which is direction of the Red Arrow in the picture.

A "contact" (another vehicle) is represented on the standard display with a symbol which also represents "contact strength". The symbols are...

  • "." represents a weak contact - This would be considered to be at LONG RANGE.
  • "x" represents a medium strength contact - The target would be considered to be MEDIUM RANGE - With barely viable to a player, but possible to shoot with TNT Cannons.
  • "X" represents a strong contact - The Target can be seen fully and is considered to be SHORT RANGE.

Some sensors use a secondary set of symbols to represent a different type of contact...

  • "." represents a weak secondary contact
  • "o" represents a medium strength secondary contact
  • "O" represents a strong secondary contact

Roughly the strength of the signal can give you an idea as to how far away your target is...however keep in mind that other things besides distance can affect signal strength.

How to Use the Detector

The detector uses the Standard Sensor Display. Which . A detector will only produce a contact if it detects a radar or radio transmission from another vehicle. Any vehicle within range that has it's radar turned on will be detected, and any vehicle within range that transmits a "/radio" message can also be detected for up to 30 seconds.

Detectors emit a PASSIVE signal...which is to say that they don't emit anything at all...they only listen. Detectors are always turned ON as there is no reason to shut them off (unless you go underwater in a submarine...then they automatically disable themselves). Since they do not make any emissions, they will not give away your own position...this makes them ideal for stealth vehicles.

Detectors have a range advantage over radar (if you think about it...for a ship using a radar, it's signal has to travel twice the distance to get all the way back). This means that when a ship is using radar it is really giving itself away more than it is detecting. Signal strength depends on the distance to the vehicle that made the radar/radio emission.

Detectors use the primary symbols (".","x","X") to represent radar transmissions, and the secondary symbols (".","o","O") to represent radio transmissions.


To build a Detector on your vehicle, you only need to place a sign, and the first line of the sign needs to say "Detector". It costs about $150 per sign. You can have more than one detector sign on a vehicle, however they will all show the same information (but still useful for giving you additional displays to read).


  • This sign and majority of this article was original created by Maxmimuspayne
  • Do to the rise of use of discord, no limits of chat on server's global channel. Use of Radio signs have decline rapidly, thus detector would not pickup a radio transmission. Radar is still used, not quite as often so detector's value is till marginal, especially when a player seeks a target to engage and destroy