508 APPENDIX 
X BAND 
10-1! APRIL, 1945 
TRANSMITTING ANTENNA 
RADAR ECHO STRENGTH VS RANGE 
“ARS-15A RADAR: 
It APRIL 1945 
a 
° 
DECIBELS 
RECEIVED SIGNAL—DB BELOW 1 WATT 
RANGE NAUTICAL MILES 
0 20 40 60 60 (100 120 140 160 180 Ficure 21. Radar echo strength versus range for 
RANGE IN NAUTICAL MILES various antenna heights. 
Ficure 20. Composite X-band run field strengths. 
ENGLAND 
Ficure 1. General view of the equipment in Aberdaron, North Wales. 
TABLE 1 
Station Height, ft 
S. Wales (transmitters) 
A. Garn-Fawr 540 
B. Strumble Head 90 
N. Wales (receivers) 
C. Rhiw 825 
D. Aberdaron : 95 
Scotland (receivers) 
BE. Knockharnahan 375 
F. Portpatrick 95 
