• We have updated our Community Code of Conduct. Please read through the new rules for the forum that are an integral part of Paradox Interactive’s User Agreement.

Cardus

Field Marshal
15 Badges
Feb 11, 2007
4.681
793
  • Hearts of Iron Anthology
  • Crusader Kings II
  • Darkest Hour
  • Europa Universalis III
  • Europa Universalis III Complete
  • Hearts of Iron III
  • Hearts of Iron III: Their Finest Hour
  • Europa Universalis III Complete
  • Europa Universalis III Complete
  • Europa Universalis: Rome
  • Victoria 2
  • Victoria 2: A House Divided
  • 500k Club
  • Europa Universalis III: Collection
  • Hearts of Iron IV Sign-up
I'm wondering whether in AoD the radar station or brigaded will provide detection
 

Wildcat_PL

General
13 Badges
Dec 27, 2002
1.770
234
  • Hearts of Iron II: Armageddon
  • Europa Universalis III
  • Europa Universalis III Complete
  • Divine Wind
  • Europa Universalis IV
  • Europa Universalis IV: Art of War
  • Europa Universalis IV: Conquest of Paradise
  • Europa Universalis IV: Wealth of Nations
  • Heir to the Throne
  • Europa Universalis III Complete
  • Europa Universalis III Complete
  • Europa Universalis IV: Res Publica
  • 500k Club
Most likely it will work just like it did in the armagedon. It will help "interceptors intercept" and give a certain combat modifier if a dogfight is in the province. So It will not spot enemy units (especialy enemy fleets) in range like it does in HoI3, and it will not give any modifiers if the fight is not in the dogfight province.
The way radar works in HoI3 is quite good imo.
 

Cardus

Field Marshal
15 Badges
Feb 11, 2007
4.681
793
  • Hearts of Iron Anthology
  • Crusader Kings II
  • Darkest Hour
  • Europa Universalis III
  • Europa Universalis III Complete
  • Hearts of Iron III
  • Hearts of Iron III: Their Finest Hour
  • Europa Universalis III Complete
  • Europa Universalis III Complete
  • Europa Universalis: Rome
  • Victoria 2
  • Victoria 2: A House Divided
  • 500k Club
  • Europa Universalis III: Collection
  • Hearts of Iron IV Sign-up
Most likely it will work just like it did in the armagedon. It will help "interceptors intercept" and give a certain combat modifier if a dogfight is in the province. So It will not spot enemy units (especialy enemy fleets) in range like it does in HoI3, and it will not give any modifiers if the fight is not in the dogfight province.

I hope that you are wrong :)

The way radar works in HoI3 is quite good imo.

I agree.
 

kane279

First Lieutenant
52 Badges
Apr 27, 2007
230
2
  • Stellaris: Distant Stars
  • Hearts of Iron IV: Cadet
  • Hearts of Iron IV: Colonel
  • Stellaris: Digital Anniversary Edition
  • Stellaris: Leviathans Story Pack
  • Hearts of Iron IV: Together for Victory
  • Stellaris - Path to Destruction bundle
  • Hearts of Iron IV: Death or Dishonor
  • Stellaris: Synthetic Dawn
  • Crusader Kings II: Jade Dragon
  • Hearts of Iron IV: Expansion Pass
  • Stellaris: Humanoids Species Pack
  • Stellaris: Apocalypse
  • Stellaris: Galaxy Edition
  • Stellaris: Megacorp
  • Crusader Kings II: Holy Fury
  • Hearts of Iron IV: Expansion Pass
  • Stellaris: Ancient Relics
  • Stellaris: Lithoids
  • Hearts of Iron IV: La Resistance
  • Stellaris: Federations
  • Crusader Kings III
  • Battle for Bosporus
  • Stellaris: Necroids
  • Stellaris: Nemesis
  • Hearts of Iron IV: No Step Back
  • Hearts of Iron III: Their Finest Hour
  • Crusader Kings II
  • Crusader Kings II: Charlemagne
  • Crusader Kings II: Legacy of Rome
  • Crusader Kings II: The Old Gods
  • Crusader Kings II: Rajas of India
  • Crusader Kings II: The Republic
  • Crusader Kings II: Sons of Abraham
  • Crusader Kings II: Sunset Invasion
  • Crusader Kings II: Sword of Islam
  • Darkest Hour
  • For the Motherland
  • Hearts of Iron III
  • Arsenal of Democracy
  • Hearts of Iron III Collection
  • Semper Fi
  • Victoria 2
  • 500k Club
  • Mount & Blade: Warband
  • Mount & Blade: With Fire and Sword
  • Crusader Kings II: Way of Life
  • Crusader Kings II: Horse Lords
  • Crusader Kings II: Conclave
  • Stellaris
you have my vote too. the radar concept of HoI3 is good. Would like to have something like it in AoD as well.
detection and/or help for interceptors/ interceptions should be based on radarlevel to range to radar base, so you can build radar hotspots to cover some area.
 

Cardus

Field Marshal
15 Badges
Feb 11, 2007
4.681
793
  • Hearts of Iron Anthology
  • Crusader Kings II
  • Darkest Hour
  • Europa Universalis III
  • Europa Universalis III Complete
  • Hearts of Iron III
  • Hearts of Iron III: Their Finest Hour
  • Europa Universalis III Complete
  • Europa Universalis III Complete
  • Europa Universalis: Rome
  • Victoria 2
  • Victoria 2: A House Divided
  • 500k Club
  • Europa Universalis III: Collection
  • Hearts of Iron IV Sign-up
From the FAQ
-Air war has been reworked, planes now can miss each other and radar now has many uses and is vital for air superiority in defensive missions.

Radars are not relevant only for air combat. For instance they should provide detection.
 

Alex_brunius

Field Marshal
68 Badges
Mar 24, 2006
22.404
5.017
  • Hearts of Iron IV Sign-up
  • Victoria 2: A House Divided
  • War of the Roses
  • 200k Club
  • 500k Club
  • Cities: Skylines
  • Crusader Kings II: Holy Knight (pre-order)
  • Pride of Nations
  • Magicka 2
  • Cities: Skylines - After Dark
  • Cities: Skylines - Snowfall
  • Achtung Panzer
  • Stellaris
  • Victoria 2
  • Hearts of Iron IV: Cadet
  • Hearts of Iron IV: Colonel
  • Hearts of Iron IV: Field Marshal
  • Stellaris: Digital Anniversary Edition
  • Stellaris: Leviathans Story Pack
  • Cities: Skylines - Natural Disasters
  • Stellaris - Path to Destruction bundle
  • Steel Division: Normandy 44
  • Cities: Skylines - Mass Transit
  • PDXCON 2017 Gold Ticket holder
  • Surviving Mars
  • Battle for Bosporus
  • Hearts of Iron III: Their Finest Hour
  • Hearts of Iron II: Armageddon
  • Cities in Motion
  • Cities in Motion 2
  • Crusader Kings II
  • Deus Vult
  • Dungeonland
  • Europa Universalis III Complete
  • Europa Universalis IV
  • Europa Universalis IV: Conquest of Paradise
  • Europa Universalis IV: Wealth of Nations
  • For the Motherland
  • Hearts of Iron III
  • Arsenal of Democracy
  • Heir to the Throne
  • Europa Universalis III Complete
  • Magicka
  • Majesty 2
  • Europa Universalis III Complete
  • Naval War: Arctic Circle
  • Victoria: Revolutions
  • Rome Gold
  • Semper Fi
  • Sword of the Stars
Radars are not relevant only for air combat. For instance they should provide detection.
Well land based radars were only good for aircraft detection and early warning.
If we are talking about detecting land and naval units airplane scouting and SIGINT was basically the two ways to do it.

What radar techs should do however is to add more powerful radar attachment or stats to ships and aircrafts that can be upgraded. This proved invaluable for detection in low visibility or night combat situations.
 

Kahless

Captain
127 Badges
Feb 18, 2007
488
5
  • 500k Club
  • March of the Eagles
  • Europa Universalis III Complete
  • Europa Universalis IV: Res Publica
  • Victoria: Revolutions
  • Europa Universalis: Rome
  • Rome Gold
  • Semper Fi
  • Sengoku
  • Victoria 2
  • Victoria 2: A House Divided
  • Victoria 2: Heart of Darkness
  • Rome: Vae Victis
  • Heir to the Throne
  • Cities: Skylines
  • Cities: Skylines Deluxe Edition
  • Europa Universalis III: Collection
  • Europa Universalis IV: El Dorado
  • Europa Universalis IV: Pre-order
  • Pride of Nations
  • Mount & Blade: Warband
  • Mount & Blade: With Fire and Sword
  • Crusader Kings II: Way of Life
  • Europa Universalis IV: Common Sense
  • Crusader Kings II: Horse Lords
  • Hearts of Iron IV: No Step Back
  • Europa Universalis III: Chronicles
  • Arsenal of Democracy
  • Crusader Kings II
  • Crusader Kings II: Charlemagne
  • Crusader Kings II: Legacy of Rome
  • Crusader Kings II: The Old Gods
  • Crusader Kings II: Rajas of India
  • Crusader Kings II: The Republic
  • Crusader Kings II: Sons of Abraham
  • Crusader Kings II: Sunset Invasion
  • Crusader Kings II: Sword of Islam
  • Darkest Hour
  • Europa Universalis III
  • Ancient Space
  • Divine Wind
  • Europa Universalis IV
  • Europa Universalis IV: Art of War
  • Europa Universalis IV: Conquest of Paradise
  • Europa Universalis IV: Wealth of Nations
  • Europa Universalis IV: Call to arms event
  • For The Glory
  • For the Motherland
  • Hearts of Iron III
  • Hearts of Iron III: Their Finest Hour
Radar should help with Sea Detection. Especially against large ships such as battleships and Aricraf carriers who would not be hidden by rolling seas.
 

Cardus

Field Marshal
15 Badges
Feb 11, 2007
4.681
793
  • Hearts of Iron Anthology
  • Crusader Kings II
  • Darkest Hour
  • Europa Universalis III
  • Europa Universalis III Complete
  • Hearts of Iron III
  • Hearts of Iron III: Their Finest Hour
  • Europa Universalis III Complete
  • Europa Universalis III Complete
  • Europa Universalis: Rome
  • Victoria 2
  • Victoria 2: A House Divided
  • 500k Club
  • Europa Universalis III: Collection
  • Hearts of Iron IV Sign-up
Yes but not only big ships. In the battle of cape Matapan, for example, the Royal Navy sunk/crippled the Italian fleet which was composed of heavy destroyers, light destroyers and some screens because of the radar used both as detection and fire control.
 
Last edited:

Balesir

AoD's Old Geezer
146 Badges
Dec 23, 2005
3.145
1.700
  • Arsenal of Democracy
  • 200k Club
  • Darkest Hour
  • Crusader Kings II: Rajas of India
  • Crusader Kings II: Jade Dragon
  • Europa Universalis III Complete
  • Deus Vult
  • Sengoku
  • March of the Eagles
  • Europa Universalis IV: Call to arms event
  • Europa Universalis IV: Common Sense
  • Hearts of Iron III: Their Finest Hour
  • For The Glory
  • Pride of Nations
  • Rome: Vae Victis
  • Warlock 2: The Exiled
  • Warlock 2: Wrath of the Nagas
  • Cities: Skylines Deluxe Edition
  • Rise of Prussia
  • Mount & Blade: Warband
  • Stellaris: Galaxy Edition
  • Stellaris: Megacorp
  • Crusader Kings III: Royal Edition
  • Steel Division: Normandy 44
  • Hearts of Iron IV: Expansion Pass
  • Surviving Mars
  • Imperator: Rome Deluxe Edition
  • Hearts of Iron II: Armageddon
  • Hearts of Iron III
  • East India Company
  • Hearts of Iron IV: Field Marshal
  • Hearts of Iron IV: Death or Dishonor
  • Battle for Bosporus
  • Hearts of Iron IV: La Resistance
  • Hearts of Iron IV: Expansion Pass
  • Hearts of Iron IV: By Blood Alone
  • Hearts of Iron IV: No Step Back
  • 500k Club
  • Victoria: Revolutions
  • Victoria 2
  • Victoria 3 Sign Up
  • PDXCON 2017 Gold Ticket holder
Actually, at Matapan radar was a factor but not because it was used for fire control. The later parts of the battle were fought at night, and radar was important because the British ships were able to close with the Italians undetected and open fire with surprise. Later radar was useful for rangefinding and fire control, however; both functions are reflected in 'vanilla' AoD.

In a basic sense, though, Alex_brunius is right; for the most part radar will not detect ships accross a complete sea 'province', so you still need scouts. Scouts that are equipped with radar, however, will be more effective as they will have a longer detection range; once engaged with a 'contact', this range becomes even more important...
 

Cardus

Field Marshal
15 Badges
Feb 11, 2007
4.681
793
  • Hearts of Iron Anthology
  • Crusader Kings II
  • Darkest Hour
  • Europa Universalis III
  • Europa Universalis III Complete
  • Hearts of Iron III
  • Hearts of Iron III: Their Finest Hour
  • Europa Universalis III Complete
  • Europa Universalis III Complete
  • Europa Universalis: Rome
  • Victoria 2
  • Victoria 2: A House Divided
  • 500k Club
  • Europa Universalis III: Collection
  • Hearts of Iron IV Sign-up
The later parts of the battle were fought at night, and radar was important because the British ships were able to close with the Italians undetected and open fire with surprise.

This is what I meant. The second part of the battle was fought against Regia Marina cruisers and screens.

Later radar was useful for rangefinding and fire control, however; both functions are reflected in 'vanilla' AoD.

So, as I said, radar was used for both detection and fire control.

In a basic sense, though, Alex_brunius is right; for the most part radar will not detect ships accross a complete sea 'province', so you still need scouts.

This is because the sea provinces are huge but radar installations should be able to detect ships not only aircrafts.
 

Kahless

Captain
127 Badges
Feb 18, 2007
488
5
  • 500k Club
  • March of the Eagles
  • Europa Universalis III Complete
  • Europa Universalis IV: Res Publica
  • Victoria: Revolutions
  • Europa Universalis: Rome
  • Rome Gold
  • Semper Fi
  • Sengoku
  • Victoria 2
  • Victoria 2: A House Divided
  • Victoria 2: Heart of Darkness
  • Rome: Vae Victis
  • Heir to the Throne
  • Cities: Skylines
  • Cities: Skylines Deluxe Edition
  • Europa Universalis III: Collection
  • Europa Universalis IV: El Dorado
  • Europa Universalis IV: Pre-order
  • Pride of Nations
  • Mount & Blade: Warband
  • Mount & Blade: With Fire and Sword
  • Crusader Kings II: Way of Life
  • Europa Universalis IV: Common Sense
  • Crusader Kings II: Horse Lords
  • Hearts of Iron IV: No Step Back
  • Europa Universalis III: Chronicles
  • Arsenal of Democracy
  • Crusader Kings II
  • Crusader Kings II: Charlemagne
  • Crusader Kings II: Legacy of Rome
  • Crusader Kings II: The Old Gods
  • Crusader Kings II: Rajas of India
  • Crusader Kings II: The Republic
  • Crusader Kings II: Sons of Abraham
  • Crusader Kings II: Sunset Invasion
  • Crusader Kings II: Sword of Islam
  • Darkest Hour
  • Europa Universalis III
  • Ancient Space
  • Divine Wind
  • Europa Universalis IV
  • Europa Universalis IV: Art of War
  • Europa Universalis IV: Conquest of Paradise
  • Europa Universalis IV: Wealth of Nations
  • Europa Universalis IV: Call to arms event
  • For The Glory
  • For the Motherland
  • Hearts of Iron III
  • Hearts of Iron III: Their Finest Hour
Some sea provinces are not so huge though, and i still say Battleships and AC shuld have a chance of being discovered when movign through a province with radar. Especially if it is not raining.
 

Alex_brunius

Field Marshal
68 Badges
Mar 24, 2006
22.404
5.017
  • Hearts of Iron IV Sign-up
  • Victoria 2: A House Divided
  • War of the Roses
  • 200k Club
  • 500k Club
  • Cities: Skylines
  • Crusader Kings II: Holy Knight (pre-order)
  • Pride of Nations
  • Magicka 2
  • Cities: Skylines - After Dark
  • Cities: Skylines - Snowfall
  • Achtung Panzer
  • Stellaris
  • Victoria 2
  • Hearts of Iron IV: Cadet
  • Hearts of Iron IV: Colonel
  • Hearts of Iron IV: Field Marshal
  • Stellaris: Digital Anniversary Edition
  • Stellaris: Leviathans Story Pack
  • Cities: Skylines - Natural Disasters
  • Stellaris - Path to Destruction bundle
  • Steel Division: Normandy 44
  • Cities: Skylines - Mass Transit
  • PDXCON 2017 Gold Ticket holder
  • Surviving Mars
  • Battle for Bosporus
  • Hearts of Iron III: Their Finest Hour
  • Hearts of Iron II: Armageddon
  • Cities in Motion
  • Cities in Motion 2
  • Crusader Kings II
  • Deus Vult
  • Dungeonland
  • Europa Universalis III Complete
  • Europa Universalis IV
  • Europa Universalis IV: Conquest of Paradise
  • Europa Universalis IV: Wealth of Nations
  • For the Motherland
  • Hearts of Iron III
  • Arsenal of Democracy
  • Heir to the Throne
  • Europa Universalis III Complete
  • Magicka
  • Majesty 2
  • Europa Universalis III Complete
  • Naval War: Arctic Circle
  • Victoria: Revolutions
  • Rome Gold
  • Semper Fi
  • Sword of the Stars
Some sea provinces are not so huge though, and i still say Battleships and AC shuld have a chance of being discovered when movign through a province with radar. Especially if it is not raining.
Won't make much difference since you can't build radar stations at sea :p (yeah I know you meant radar coverage)

Edit: That some provinces are small doesn't warrant giving detection to all provinces. The place where this would see most frequent use is probably the Pacific where sea-zones can be up to 500km across. Find me a naval detection radar with that range from WW2.

I can agree on straits though. Those are always small enough bodies off water to warrant radar coverage. And radar installations should also give combat bonuses to airplanes defending port-strikes (if it doesn't already).
 
Last edited:

Cardus

Field Marshal
15 Badges
Feb 11, 2007
4.681
793
  • Hearts of Iron Anthology
  • Crusader Kings II
  • Darkest Hour
  • Europa Universalis III
  • Europa Universalis III Complete
  • Hearts of Iron III
  • Hearts of Iron III: Their Finest Hour
  • Europa Universalis III Complete
  • Europa Universalis III Complete
  • Europa Universalis: Rome
  • Victoria 2
  • Victoria 2: A House Divided
  • 500k Club
  • Europa Universalis III: Collection
  • Hearts of Iron IV Sign-up
Won't make much difference since you can't build radar stations at sea :p (yeah I know you meant radar coverage)

Edit: That some provinces are small doesn't warrant giving detection to all provinces. The place where this would see most frequent use is probably the Pacific where sea-zones can be up to 500km across. Find me a naval detection radar with that range from WW2.

I can agree on straits though. Those are always small enough bodies off water to warrant radar coverage. And radar installations should also give combat bonuses to airplanes defending port-strikes (if it doesn't already).

A radar as a range. That means a detection should be provided within its range. No matter to straights.
 

Alex_brunius

Field Marshal
68 Badges
Mar 24, 2006
22.404
5.017
  • Hearts of Iron IV Sign-up
  • Victoria 2: A House Divided
  • War of the Roses
  • 200k Club
  • 500k Club
  • Cities: Skylines
  • Crusader Kings II: Holy Knight (pre-order)
  • Pride of Nations
  • Magicka 2
  • Cities: Skylines - After Dark
  • Cities: Skylines - Snowfall
  • Achtung Panzer
  • Stellaris
  • Victoria 2
  • Hearts of Iron IV: Cadet
  • Hearts of Iron IV: Colonel
  • Hearts of Iron IV: Field Marshal
  • Stellaris: Digital Anniversary Edition
  • Stellaris: Leviathans Story Pack
  • Cities: Skylines - Natural Disasters
  • Stellaris - Path to Destruction bundle
  • Steel Division: Normandy 44
  • Cities: Skylines - Mass Transit
  • PDXCON 2017 Gold Ticket holder
  • Surviving Mars
  • Battle for Bosporus
  • Hearts of Iron III: Their Finest Hour
  • Hearts of Iron II: Armageddon
  • Cities in Motion
  • Cities in Motion 2
  • Crusader Kings II
  • Deus Vult
  • Dungeonland
  • Europa Universalis III Complete
  • Europa Universalis IV
  • Europa Universalis IV: Conquest of Paradise
  • Europa Universalis IV: Wealth of Nations
  • For the Motherland
  • Hearts of Iron III
  • Arsenal of Democracy
  • Heir to the Throne
  • Europa Universalis III Complete
  • Magicka
  • Majesty 2
  • Europa Universalis III Complete
  • Naval War: Arctic Circle
  • Victoria: Revolutions
  • Rome Gold
  • Semper Fi
  • Sword of the Stars
A radar as a range. That means a detection should be provided within its range. No matter to straights.
The range is very different depending on if your trying to locate ships, tanks or airplanes though.

Early English radars could detect airplanes hundreds of kms away. But no land or shipbased radar in ww2 could detect ships 100km away (mostly due to horizon)
wikipedia said:
For an observer standing on a hill or tower of 100 m in height, the horizon is at a distance of 36 km.
 

Cardus

Field Marshal
15 Badges
Feb 11, 2007
4.681
793
  • Hearts of Iron Anthology
  • Crusader Kings II
  • Darkest Hour
  • Europa Universalis III
  • Europa Universalis III Complete
  • Hearts of Iron III
  • Hearts of Iron III: Their Finest Hour
  • Europa Universalis III Complete
  • Europa Universalis III Complete
  • Europa Universalis: Rome
  • Victoria 2
  • Victoria 2: A House Divided
  • 500k Club
  • Europa Universalis III: Collection
  • Hearts of Iron IV Sign-up
The range is very different depending on if your trying to locate ships, tanks or airplanes though.

Early English radars could detect airplanes hundreds of kms away. But no land or shipbased radar in ww2 could detect ships 100km away (mostly due to horizon)

Correct.
1) The range differs depending on both the target@s location and the radar's location
2) Fixed installations and naval radars had small range (for what I read max 20 km) vs ships

PS

Please note that many German submarines were sunk thanks to the radars (even though they had very limited range)
 

Kahless

Captain
127 Badges
Feb 18, 2007
488
5
  • 500k Club
  • March of the Eagles
  • Europa Universalis III Complete
  • Europa Universalis IV: Res Publica
  • Victoria: Revolutions
  • Europa Universalis: Rome
  • Rome Gold
  • Semper Fi
  • Sengoku
  • Victoria 2
  • Victoria 2: A House Divided
  • Victoria 2: Heart of Darkness
  • Rome: Vae Victis
  • Heir to the Throne
  • Cities: Skylines
  • Cities: Skylines Deluxe Edition
  • Europa Universalis III: Collection
  • Europa Universalis IV: El Dorado
  • Europa Universalis IV: Pre-order
  • Pride of Nations
  • Mount & Blade: Warband
  • Mount & Blade: With Fire and Sword
  • Crusader Kings II: Way of Life
  • Europa Universalis IV: Common Sense
  • Crusader Kings II: Horse Lords
  • Hearts of Iron IV: No Step Back
  • Europa Universalis III: Chronicles
  • Arsenal of Democracy
  • Crusader Kings II
  • Crusader Kings II: Charlemagne
  • Crusader Kings II: Legacy of Rome
  • Crusader Kings II: The Old Gods
  • Crusader Kings II: Rajas of India
  • Crusader Kings II: The Republic
  • Crusader Kings II: Sons of Abraham
  • Crusader Kings II: Sunset Invasion
  • Crusader Kings II: Sword of Islam
  • Darkest Hour
  • Europa Universalis III
  • Ancient Space
  • Divine Wind
  • Europa Universalis IV
  • Europa Universalis IV: Art of War
  • Europa Universalis IV: Conquest of Paradise
  • Europa Universalis IV: Wealth of Nations
  • Europa Universalis IV: Call to arms event
  • For The Glory
  • For the Motherland
  • Hearts of Iron III
  • Hearts of Iron III: Their Finest Hour
Well radar is of course a LOS device:

This chart is how far the horizon is:
How_far_away_is_the_horizon.png


But then again Aircraft carriers can be over 240 ft tall also so someone somwhere msut have some info on ship detection using radar.

Now if say you built the radar station at the top of Mt. Suribachi which has a height of 554 ft. (170m)You would be able to see a good distance.
 

Cardus

Field Marshal
15 Badges
Feb 11, 2007
4.681
793
  • Hearts of Iron Anthology
  • Crusader Kings II
  • Darkest Hour
  • Europa Universalis III
  • Europa Universalis III Complete
  • Hearts of Iron III
  • Hearts of Iron III: Their Finest Hour
  • Europa Universalis III Complete
  • Europa Universalis III Complete
  • Europa Universalis: Rome
  • Victoria 2
  • Victoria 2: A House Divided
  • 500k Club
  • Europa Universalis III: Collection
  • Hearts of Iron IV Sign-up
(170)^0.5 = about 13 Km.

This confirms what I posted earlier:

2) Fixed installations and naval radars had small range (for what I read max 20 km) vs ships
 

Balesir

AoD's Old Geezer
146 Badges
Dec 23, 2005
3.145
1.700
  • Arsenal of Democracy
  • 200k Club
  • Darkest Hour
  • Crusader Kings II: Rajas of India
  • Crusader Kings II: Jade Dragon
  • Europa Universalis III Complete
  • Deus Vult
  • Sengoku
  • March of the Eagles
  • Europa Universalis IV: Call to arms event
  • Europa Universalis IV: Common Sense
  • Hearts of Iron III: Their Finest Hour
  • For The Glory
  • Pride of Nations
  • Rome: Vae Victis
  • Warlock 2: The Exiled
  • Warlock 2: Wrath of the Nagas
  • Cities: Skylines Deluxe Edition
  • Rise of Prussia
  • Mount & Blade: Warband
  • Stellaris: Galaxy Edition
  • Stellaris: Megacorp
  • Crusader Kings III: Royal Edition
  • Steel Division: Normandy 44
  • Hearts of Iron IV: Expansion Pass
  • Surviving Mars
  • Imperator: Rome Deluxe Edition
  • Hearts of Iron II: Armageddon
  • Hearts of Iron III
  • East India Company
  • Hearts of Iron IV: Field Marshal
  • Hearts of Iron IV: Death or Dishonor
  • Battle for Bosporus
  • Hearts of Iron IV: La Resistance
  • Hearts of Iron IV: Expansion Pass
  • Hearts of Iron IV: By Blood Alone
  • Hearts of Iron IV: No Step Back
  • 500k Club
  • Victoria: Revolutions
  • Victoria 2
  • Victoria 3 Sign Up
  • PDXCON 2017 Gold Ticket holder
(170)^0.5 = about 13 Km.

This confirms what I posted earlier:
To spot another high location/object you can actually add the horizons together (to allow for the height of the target). For an 80m tall carrier this adds (80)^0.5 ~ 9 km for a total of ~22 km, so your 20 km limit is pretty good, as a guide.
 

Alex_brunius

Field Marshal
68 Badges
Mar 24, 2006
22.404
5.017
  • Hearts of Iron IV Sign-up
  • Victoria 2: A House Divided
  • War of the Roses
  • 200k Club
  • 500k Club
  • Cities: Skylines
  • Crusader Kings II: Holy Knight (pre-order)
  • Pride of Nations
  • Magicka 2
  • Cities: Skylines - After Dark
  • Cities: Skylines - Snowfall
  • Achtung Panzer
  • Stellaris
  • Victoria 2
  • Hearts of Iron IV: Cadet
  • Hearts of Iron IV: Colonel
  • Hearts of Iron IV: Field Marshal
  • Stellaris: Digital Anniversary Edition
  • Stellaris: Leviathans Story Pack
  • Cities: Skylines - Natural Disasters
  • Stellaris - Path to Destruction bundle
  • Steel Division: Normandy 44
  • Cities: Skylines - Mass Transit
  • PDXCON 2017 Gold Ticket holder
  • Surviving Mars
  • Battle for Bosporus
  • Hearts of Iron III: Their Finest Hour
  • Hearts of Iron II: Armageddon
  • Cities in Motion
  • Cities in Motion 2
  • Crusader Kings II
  • Deus Vult
  • Dungeonland
  • Europa Universalis III Complete
  • Europa Universalis IV
  • Europa Universalis IV: Conquest of Paradise
  • Europa Universalis IV: Wealth of Nations
  • For the Motherland
  • Hearts of Iron III
  • Arsenal of Democracy
  • Heir to the Throne
  • Europa Universalis III Complete
  • Magicka
  • Majesty 2
  • Europa Universalis III Complete
  • Naval War: Arctic Circle
  • Victoria: Revolutions
  • Rome Gold
  • Semper Fi
  • Sword of the Stars
Please note that many German submarines were sunk thanks to the radars (even though they had very limited range)
How many were sunk thanks to stationary, land-based radars?
That's is what we are talking about here...

The way Horizon works really say landbased radars should only be able to detect mostly high-flying airplanes (like bombers) at long ranges (outside their own province).