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Chain Home Extra Low radar
Photo: John Wernham · Wikimedia Commons · CC BY-SA 2.0
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ChainHomeExtraLowradar

Air Defense Radars · United Kingdom · 1939
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ChainHomeExtraLowradar

Chain Home Extra Low radar
Chain Home Extra Low radar Photo: John Wernham · Wikimedia Commons · CC BY-SA 2.0
* Absolute score — assessed within category · no era adjustment
Detection Range
30
Altitude Coverage
25
Target Capacity
40
ECCM
5
Low-Observable Detection
0
Mobility
40
Reliability
60
Tracking Quality
30
Technology
20
Cost-Effectiveness
80
Origin United Kingdom
CategoryAir Defense Radars
EraWorld War II
In service1939
Operators1 countries
Quantity100
Data Quality85%
MASS(Military Archive Scoring System)
29
Air Defense Radars MASS Rating
8/14
World War II
102/111
All-Time
Air Defense Radars · 10 axes scored
Detection Range
30
Altitude Coverage
25
Target Capacity
40
ECCM
5
Low-Observable Detection
0
Mobility
40
Reliability
60
Tracking Quality
30
Technology
20
Cost-Effectiveness
80
ⓘ Regardless of era, the same scoring system applies to all units in the air defense radars category.
01 / Overview
Chain Home Extra Low radar
Production
1939–
Quantity
100
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
AIR DEFENSE RADARS · WORLD WAR II
8
PERFORMANCE/PRICE
35
UNIT COST (2025 USD)
—
29
air defense radars category
ⓘ Performance/Price and MASS score are computed across all units in the air defense radars category, regardless of era.
02 / Specs & Design
◎General5MOD.5
  • System Typeearly warning radar
  • Service Entry Year1939
  • Platformland-based
  • MobileYes
  • In ServiceNo
◈Radar Performance5MOD.5
▣Electronic Warfare3MOD.3
◇Deployment1MOD.1
  • Power Sourceelectrical grid
◆Production2MOD.2
  • Total Production100
  • Variants1
03 / History
SERVICE LIFESPANRetired
  1. 1939Production started
87
years in service
100
units produced
0
countries operating
ⓘ 1 countries retired it.
04 / Operators
Operator Countries1country
📖 TERMS ON THIS PAGE1terms
Mobile: a capability indicating the MANPADS can be transported and operated by a single soldier or small team, enabling rapid deployment and relocation.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Air Defense Radars entry →