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Radar Type Numbers

I am indebted to Brian Mulvana for preparing this list of radar type numbers and descriptions. This is the most comprehensive list I have seen and it covers British, US, German and civil types. This is a first class effort, the original document comprises of 19 pages of information! Brian tells me that the list represents some 20 years work and that the information was drawn from many sources in the course of his own research. Please send any additions or corrections to me and I'll pass them on to Brian.

To save space and to keep my workload under control I have only listed the AMES (Air Ministry Experimental Station) types here. The full listing of Brian's work can be obtained from the down load section here.

 British Radar Types:

Type

Function

Peak Power

Pulse width

PRF

Freq

Notes

AMES 1

CH

1 Mw

5-54 uS

12.5, 25, 50

22.7-29.7 MHz

Figures for later modifications. Earlier systems had 200KW and 800KW outputs. Some systems designed for 42.5-50.5MHz. First experimental systems used NT46, then NT57 Then BTH Type 43 or 45 Demountable valves. Earlier stations had powers from 450-750Kw. T3026 reported as 450Kw, 5-40uS; T3026A 750Kw. May have used transmitters from MB series. Could do Height Finding from 1.5 to 16 Deg. Targets lower than 1 Deg are not detected.

2

CHL

150 Kw

3

400

200 MHz

PRF Variable around 400. When on 200' tower or on 200' cliffs, range on target at 500' is 110 miles. Aerial is a 5 bay, 4 stack of dipoles . Horizontal angle of beam about 20 Deg.

3

CH/CHL

 

 

 

 

Types 1 & 2 in close proximity operating as one unit.

4

CO

 

 

 

 

Overseas Chain Home. Also known as Intermediate CO, or CO/ICH

5 Mk..1

COL

 

 

 

 

Chain Overseas Low. A version of type 2 for use overseas, but a few were installed in the UK.. Mk..1 prior to AMES 530. Hand turned.

5 Mk..2A

COL

 

 

 

 

From equipment No 531. Used a gantry, and was power turned.

5 Mk..2B

COL

 

 

 

 

As type 5 Mk..2A, but using towers.

6 Mk..1

LW

85Kw

 

 

176MHz

Converted ASV Radar. Early Light Warning Set, sometimes Early Light Warning. Prototype had range of 18 miles. Two built after prototype had range of 25 Miles at 6000', 18 Miles at 2000'. Transportable. Used as Early warning and/or as Locating Radar for 3GHz Gun Control Radar. RAF version usually tented; Army version usually in trucks. In use Crete 1941.

6 Mk..2

LW

85Kw

 

 

176MHz

Light Warning Set. Also known as AA No 4 Mk..2. Also known as Type 5124, Transportable Radio Installation. Transportable or Mobile.

6 Mk..3

LW

85Kw

 

 

176MHz

Light Warning Set. Also known as AA No 4 Mk..3. Transportable or Mobile.

6 Mk..4

LW

85Kw

 

 

176MHz

Mk..2 modified to work on a lower frequency. Transportable or Mobile.

6 Mk..5

LW

85Kw

 

 

176MHz

High Frequency Light Warning Set using a multiple Yagi Aerial. Mobile version only.

6 Mk..6

LW

85Kw

 

 

176 MHz

High Frequency Light Warning Set using a parabolic dish Aerial. Mobile version only.

6 Mk..7

LW

85Kw

 

 

176MHz

Light Warning Set. Air Transportable. modified for GCI, using AMES Type 8A Aerial.

6 Mk..8

LW

85Kw

 

 

176MHz

As Mk..7, but using an Aerial from SCR 636.

6 Mk..9

LW

85Kw

 

 

176MHz

Uses Mk.. 3 equipment and associated communications equipment mounted on a Morris 4x4 vehicle (RVT 430D), and Jeep (RVT 430E)

6 Mk..10

LW

85Kw

 

 

176MHz

Mobile Air Transportable System. TRE version of Mk..9.

6 Mk..11

LW

85Kw

 

 

176MHz

As Mk..8, but using Steel Gantry instead of Aerial Trailer.

7

GCI

80-100Kw

3,5 or 8 uS

300-540

192-209MHz

Final (as in the final version) static GCI radar known as Happidrome. Effective Range 90 miles. Aerial 30' x 25' comprising three separate aerials at 7.5', 12.5', & 25'.Can combine these or use separate. Rotates at up to 8 RPM. Can detect a target at 1000' at 30 Miles. Transmitter is a CHL type. Height finding between 2.5 and 20 Deg.

8

GCI/CHB

 

 

 

209MHz

Interim GCI Radar. Superseded by Type 7 (static) and Type 15 (Mobile) Some produced at 250-300Mhz as an insurance against jamming. Mobile with Trailer. GCI Mobile Mk..3 with Hand turned Aerials.

8A

GCI/CHB

 

 

 

209MHz

Transportable or Semi static. GCI Intermediate Mobile with Hand turned Aerial, hutted operations and Transmitter rooms.

8B

GCI/CHB

 

 

 

209MHz

Transportable. Additional 35' Aerial mounted on Gantry.

8C

GCI/CHB

 

 

 

209MHz

Had 10' Aerial array as 8F, and extra single array at 35' high to increase range on low flyers. Used CHL TX T3079.

8E

GCI/CHB

 

 

 

209MHz

This was the basis for the first Type 15's.

8F

GCI/CHB

150Kw

 

 

209MHz

Believed known as "GCI Mk..4". Max range 60 Miles. TX developed from Type 2. Height Finding effective between 4 and 20 Deg. Accuracy 50' up to 45,000' altitude. Power turned Aerial up to 6 RPM. Aerial was known as the ten foot array, four bays of 8 Dipoles. Instrumented Range 45 Miles.

9(T)

MRU

300Kw

 

 

40-50MHz

Mobile Radio Unit. Smaller CH system used as gap filler, and before main stations were built 105' tower to support aerials.. Used as buried reserve at CH stations. Also used overseas. Later versions had four lines of shoot.

9 Mk..1

MRU

300Kw

 

 

42.5-43.75MHz

Transportable or mobile installation with trailers. All round looking. Called TRU or MRU.

9 Mk..2

MRU

300Kw

 

 

40-50MHz

Special arrays fitted to Mk..1 with hutted CRDF receiver.

9 Mk..3

MRU

300Kw

 

 

40-50MHz

Similar to Mk..2 with CRHF Receiver.

9 Mk..4

MRU

300Kw

 

 

40-50MHz

Special arrays on ACH towers (TX) Hutted transmitter and CRHF receiver. Abandoned.

9 Mk..5

MRU

300Kw

 

 

40-50MHz

Mobile version of Mk..3.

9 Mk..6

MRU

300Kw

 

 

40-50MHz

Special Receiver arrays on 105' masts with CRHF and Receiver 1426.

10

ACO

 

 

 

40-50MHz

Advance Chain Overseas. Overseas version of Type 9, both static and mobile versions. Used 125' towers, four lines of shoot.

VEB

Height Finder

 

 

 

200MHz

Used a vertical stack of 56 end fed dipoles on a CH tower. Beamed a fan pattern vertically swung to various elevations by phase changes between Dipoles.

11 Mk..1

CHL/GCI

50Kw?

4

500

565MHz

Mk..1 was mobile. Output Device is NT99. Mobile sets as standby if the 200MHz band was jammed. 600MHz was used by Germany.. Later versions from Mk..5 Were coherent. First versions had rotary spark gap modulator. Horizontal beam 4 Deg, Vertical 11 Deg.

11 Mk..2(T)

CHL/GCI

50Kw?

4

500

500-600MHz

MGRI 5193. Included two radar vehicles. Prime mover had operations building with aerial as trailer. Mobile or Mobile with Trailer Standby. Tuneable over 50-60cm. Used display units DU3 or DU58.

11 Mk..2(M)

CHL/GCI

50Kw?

4

500

500-600MHz 

MGRI 5299 Similar to Mk..2(T) except aerial mounted on prime mover.

11 Mk..3

CHL/GCI

50Kw?

4

500

500-600MHz

Mobile with Universal operations room with display unit type 5 and later consuls type 15 & 16.

11 Mk.4

CHL/GCI

50Kw?

4

500

500-600MHz

Mobile with Universal Operations room with TX T3585 and Receiver R.3575 in RV435 with dismountable aerial and cabin.

11 Mk.5

CHL/GCI

50Kw?

4

500

500-600MHz

Similar to Mk.3, but coherent pulse.

11 Mk.6

CHL/GCI

50Kw?

4

500

500-600MHz

Similar to Mk.4, but coherent pulse

11 Mk.7

CHL/GCI

50Kw?

4

500

500-600MHz

Similar to Mk.4, but with TX T3605 and RX R3575.

11 Mk.8

CHL/GCI

50Kw?

4

500

500-600MHz

Coherent Pulse. Demonstrated PICAO in 1946.


 

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Updated 20/04/01

Constructed by Dick Barrett

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ęCopyright 2000 - 2002 Dick Barrett

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