RAD-BEAC.HTM FEB DECJan 5 2009 20102011 31 captures 29 Aug 00 - 5 Dec 10 Close Help F. W. Chesson FILE: RAD-BEAC.HTM 144 Fiske Street Waterbury, Conn. 06710 Rev: 9-10-2001 RADAR BEACONS Radar beacons grew out of IFF (Identification, Friend or Foe) when radar sets began to become integrated with air defence systems in mid WW-Two. Some, like the APN-2 "Rebecca" airborne beacon, were used in connection with other units, like the ground-based PPN-2 "Eureka" for co-ordinating parachute drop operations. (see below) Signal Corps SCR- Radar Beacons SCR-599 Radar Beacon became AN/PPN-10,11 SCR-620 Radar Beacon, 10 CM, U/W SCR-520 became AN/CPN-3 SCR-621* Radar Beacon, 170-196 MC, U/W SCR-521; BC-1064*, 1098 RA-81 Signal Corps BC- (Basic Component) Radar Beacons BC-1064* Radar Beacon Xmitter, 170-200 MC 24 tubes CD-721,722,724, RA-81 U/W BC-1098 Coder P/O RC-201, SCR-621,640,717, CPN-1 1944 BC-1169* Radar Beacon 18 tubes P/O RC-232 BC-1169-T2 Beacon Trainer 17 tubes P/O SCR-640-T1 RC (Radio Component) Radar Beacons RC-201 Radar Beacon BC-1064 Xmitter (20 tubes) & CD-721,722,770,771, PL-302 U/W BC-1081 Coder (17 tubes) P/O RC-232, SCR-621,640,717, AN/CPN-1 1944 RC-232 Radar Beacon BC-1169 R-T (18 tubes) & BC-1098 Coder (16 tubes) 1944 AN/APN- Airborne Radar Beacon Equipment NOTES * = Several Models Known, CBx = Control Box, JBx = Junction Box LAB = Low Altitude Bombing Radar System. ECM = Electronic Countermeasures D-C = Directional Coupler, Ind. = Indicator-usually CRT, PC = Power Cable/Cord R/B = Replaced by..., Shk-Mt = Shock Mount, W-G = Wave Guide AN/ Designation Description and Typical Usage TM/TO No. Date The "Rebecca-Eureka" radar beacon system was designed to assist the airborne supply of agents and paratroopers on the ground. The APN-2 Rebecca used antenna lobe-switching and an L-Scope presentation for azimuth homing on a BC-929* oscilloscope. Five channels were available. Voice communication was later added. The AN/PPN-2* Eureka transmitted up from the ground when properly interrogated. See "Radar Beacons" Vol 3., MIT Radiation Laboratory Series; Chapter 1. Also pages 76-77 and 231-232. System Description ----------------------------------------------------------------------------- APN-2 "Rebecca" Airborne Beacon S/T SCR-729 U/W PPN-2 "Eureka" RT-1A/ APN-2 RF Unit, 210-240 MC 19 tubes Inter/Repl Chans. A: 209, B: 214, C: 219, D: 224, E: 229 MC RT-65/ Improved RT-1* AN-147,148-A APN-2 (SCR-729) Antennas AT-1,2/ APN-2 Antennas BC-929* APN-2 Oscilloscope, 3BP1 & 7 tubes (ID-169/APN-12 also used) BC-1145/C-3 APN-2 CBx On FT-406 DY-3/AP APN-2 Dynamotor FT-406*/ Mounting for C-3/ FT-416/ APN-2 Mounting I-46-A Field & Depot IFF Test Set APN-2B Improved APN-2; 210-240 MC, 5 antennas AT-96/ APN-2B Antenna (5 used) BC-929-C/ APN-2B Indicator (improved 200 M Range Control) FT-406,409,416/ APN-2B Mountings APN-2Y Radar Beacon Aid U/W PPN-1, TPN-1 Beacons AN 08-30APN2-2 2-44 RT-8/APN-2Y/ APN-2Y RF Unit 15 tubes AT-1*,2,9/AP APN-2Y Antennas BC-929-AZ/ APN-2Y Indicator, 3BP1 & 7 tubes, w Antenna Switching Motor APN-2-T1 Radar Beacon Trainer O-7/AP APN-2-T1 RF Generator APN-5 Radar Beacon Nav. Aid R-14/ APN-5 Beacon Rcvr T-13/ APN-5 Xmtr DY-7/A APN-5 Dynamotor APN-6 Former SCR-599 Beacon U/W PPN-10,11 units APN-7 S-Band Beacon 50 M range U/W APS-2 AN 08-10-228 RT-21/ APN-7 RF Unit 3264-3333 MC 200 W PP, 30 MC IF AS-31/ APN-7 Antenna CX-35/ APN-5 Coax Cable KY-3/ APN-7 Keyer MT-111/ APN-7 Shk-Mt for RT-21/ APN-8* Radar Beacon APN-11 X-Band Beacon U/W APS-3,4,6,10,15,31,33 & APQ-13 RT-93/ APN-11 R-T Unit, 300 W-Pk R/B RT-104/ RT-104/ APN-11 R-T Unit AS-306/ APN-11 Antenna C-299/ APN-11 CBx CG-175/APS-3 APN-11 Flex-WG U/W RT-93/ CG-582/U APN-11 Test Cords CW-150/AP APN-11 Radome for AS-306/ CX-1224/ APN-11 Test Cords HD-22A/ APN-11 Xmtr Blower for RT-93/ MT-459/ APN-11 Shockmount for RT-93/ APN-12* Beacon & IFF Set, (Farnsworth) see also APN-76* RT-1/APN-2 APN-12 RF Unit, 160-240 MC, 500 W Pk (R/B RT-11/ below) RT-11/ APN-12 RF Unit, 160-240 MC RT-316/ APN-12A RF Unit AT-96/ APN-12 Antenna AT-225/ APN-12 Antenna BC-929-C APN-12 Indicator (R/B ID-169/ below) C-169,170/ APN-12 Power & Freq CBxs C-972/ APN-12A Control FT-406,09,12/ APN-12 Equipment Mounts ID-169/ APN-12 Indicator & Antenna Sw (imp BC-929*) 11 tubes & 3JP1 MX-284/ APN-12 Video Gate Kit 6 tubes U/W MT-165/U UG-191/AP APN-12 Coax Receptacle APN-13 S-Band Beacon (improved APN-7) U/W Navy SM Radars RT-61/ APN-13 RF Unit 500 W PP 30 MC IF APN-15,16,18 Radar Beacons APN-19* S-Band Beacon "Rosebud" 7 response codes U/W SCR-584 R-149/ APN-19 Rcvr 300 MC PB T-128/ APN-19 Xmtr, 2907 MC, 100 W-Pk APM-53 APN-19 test Set AT-104/ APN-19 Antenna Vert 1/4 wave dipole, two used for lobing C-238/ Rcvr CBx (Gilfilan Bros.) C-239/ Xmtr CBx DY-30/ APN-19 Dynamotor +300 & -100 VDC F-28/ APN-19 Filter MT-395,396,527/ APN-19 Mounts MT-529/ APN-19 Mount for MX-687 MX-687/ APN-19 Modif. Kit TL-548/ APN-19 Tuning Tool APN-20,21 Radar Beacons APN-26 SG-Band Beacon, 100-130 or 215-245 MC AS-172/ APN-26 Antenna APN-29 SG-Band Beacon, 100-130 or 215-245 MC RT-97/ APN-29 RF Unit U/W MT-425 Shock Mount RE-42/ APN-29 Antenna Sw. MT-425/ APN-29 Shock Mount for RT-97/ APN-30 Radar Beacon APN-33 S-Band Beacon, 2750-3000 MC (R/F APN-7, R/B APN-41) RT-110/ APN-33 R-T, 2750-3000 MC, 300 W 446B Lighthouse Tube AT-115/ APN-33 Antenna (2 used) DY-35/AP APN-33 Dynamotor, 28 VDC @ 7 Amp. MT-489/ RT-110/APN-33 Mounting APN-34 Radar Beacon APN-35-40 Radar Beacons APN-41 S-Band "Loon" Missile Beacon R/F APN-33 1945-46 APN-45-50 Radar Beacons APN-60 S-Band Bacon 2800-2920 MC 100 WPk 150 M range 1950 APN-63 Beacon Rcvs S-Band, Xmts L-Band, 25 W PP Melpar 91141 APN-68 IFF-Beacon, 214-234 MC U/W APX-6 TO 12P4-2APX-6 1956 RT-157/ APN-68 RF Unit AT-96/ APN-68 Antenna C-525/ APN-68 CBx APN-69 X-Band Beacon 9.3 GHz 10 KW APN-76* Radar Beacon Olympic R & T Co. RT-11* APN-76 RF Unit (APN-12) 160-234 MC in 8 chns. .5 KW AT-225/APN APN-76 Antenna C-169/APN-12 APN-76 CBx C-170/APN-12 APN-76 CBx SB-215/ APN-76 Control Panel APN-132 X-Band Transponder 8.7-9.6 MHz 100 W Motorola APN-134 Ku-Band Transponder, 16.28 GHz, 2 KWPk APN-135 X-Band Transponder for in-flight refueling Bendix RT-544/ APN-135 RF Unit 9.3 GHz 1 KW PP 109 MC IF 9 codes AT-921/ APN-135 Antenna C-3033/ APN-135 CBx APN-136 Ku-Band Inflight Fueling Beacon Bendix RT-545/ APN-136 RF Unit 700 W PP AT-922/ APN-136 Antenna C-3034/ APN-136 CBx RT-604/ APN-144 RF Unit AS-1144/ APN-144 Antenna C-3471/ ASN-32 Computer Control CV-1058/ APN-144 Frequency Tracker ID-884/ APN-144 Groundspeed & Drift-Angle Ind. (meter) APN-154* X-Band Beacon for A-4 and A-7 1 KW PP Motorola APN-T1 Trainer U/W SCR-595,695,729 (modf RC-110-T1) CO AN-30APNT1-2 BC-703 APN-T1 Control Panel BC-800A APN-T1 R-T Unit BC-929* APN-T1 Indicator (2 used) BC-1145 APN-T1 CBx KY-2/ APN-T1 Code Selector O-6/ APN-T1 RF Oscillator PE-115* APN-T1 Power Inverter APW-8 Remote Control Radar Beacon APW-11 RC & Telemetry Beacon for B-66, X-10, TM-61, BQM-34 APW-33 Radar Beacon for LTV-N-2 "Loon" APX-9 Improved "Rebecca" IFF Beacon APX-91 Video Beacon for RC-125 APX-105 Rendezvous Transponder (imp APX-78) for B-1A Herley-Vega BPN-1 Radar Beacon for submarines 92521 1952 AN/C- Air-Transportable Equipment (Class became obsolete c 1955.) CPA-1 Bacon Antenna Assembly, 214-234 MC AS-30/ CPA-1 Ant.Element PP-76/ CPA-1 Inverter PS SA-7/ CPA-1 Ant. Switch U/W CD-800 CPA-2,3,4 Beacon Conversion Kits CPN-1 S-Band Beacon U/W SCR-621,729, APN-2 TO 08-10-170 4-1943 RC-201 CPN-1 Radar Beacon (BC-1064) R-6/ CPN-1 Receiver 20 tubes T-8/ CPN-1 Xmitter AS-3/ CPN-1 Antenna CD-722 CPN-1 Main Power Cord CX-18/ CPN-1 12' Power Cord, to CD-722, R-6/ & RC-201 CY-1/ CPN-1 Transit Chest for CY-22/ CY-22/ CPN-1 Case for R-6 Receiver (inside CY-1) MT-61/ CPN-1 R-6 Receiver Mount TS-143/ CPN-1 Synchroscope UG-4/ CPN-1 T-Adapter for R-6 U/W BC-1064, 1098 CPN-3,A S-Band Beacon (SCR-620) U/W SCR-517,520,717,720 TO 08-10-197 R-11,66/ CPN-3 Receivers T-8,58 CPN-3 Xmitters TO 08-10-178 AS-9/ CPN-3 Antenna CPN-1 CPN-3 Test Set CD-772 Power Cable U/W SCR-621,640 CX-9,10/ CPN-3 WC-549 & RMA-10 RF Cables AS-9 to R-11/ & T-8/ CX-17/ CPN-3 PC for R-11/, ID-13/ & KY-1/ CY-12/ CPN-3 Chest CY-19/ CPN-3 Spare Tube Case CY-39/ CPN-3 Eqpt Case ID-13/ CPN-3 Ind. 7 tubes inc 2BP1 1944 KY-1/ CPN-3 Keyer PP-8/ CPN-3 PS PP-57,73/ CPN-3 Rect-Ps TS-111/CP CPN-3 Wavemeter CPN-6 "Minnie" X-Band Beacon Galvin Co. U/W APS-10 900771,900838 R-88/ CPN-6 Receiver, 9325 MC, 12-47 MC IF 98863 1956 T-79/ CPN-6 Modulator-Xmitter, 9310 MC, 40 KW-PP 2J48 magnetron AB-42/ CPN-6 Antenna Mast AM-4/ CPN-6 Modulator-Driver 62 codes AM-44/ CPN-6 " " & PS U/W KY-6/, T-79/ AS-119/ CPN-6 Antenna: Separate R & T linear array, 12 slotted W-G units CY-169/ CPN-6 Case for PP-93A/ & Xmitter Parts CY-170/ CPN-6 Case for R-88/ F-12A/ CPN-6 Discriminator U/W KY-6/ KY-6*/ CPN-6 Keyer U/W AM-44/ MX-202/ CPN-6 Auto-Xformer 210-250 to 110-115 VAC O-30/CPN CPN-6 Supression Generator PP-93/ CPN-6 PS U/W CY-169/ TS-120/U CPN-6 Sig Gen TS-143/CPM-1 CPN-6 Synchroscope CPN-8 S-Band Beacon Motorola U/W SCR-517,717 Ships 306 R-56/ CPN-8 Receiver-Coder 24 tubes T-50/ CPN-8 S-Band Xmitter-Modulator 9 tubes, inc: 2J38, 3B24, 715B CPM-2 CPN-8 Test Kit AB-18/ CPN-8 Ant. Support AS-23/AP CPN-8 Test Antenna AS-72/ CPN-8 Ant. Masthead Array (horz. polarization) AS-80/ CPN-8 " " " (vertical " BK-169 CPN-8 Ant. Kit U/W CY-166/ (Galvin Radio) CG-139/ CPN-8 RG-38/U Cable U/W R-56/ & T-50/ CN-11/ CPN-8 Voltage Control, U/W CX-271/ CX-270/ CPN-8 Test Cord, R-56/ to TS-121/ CX-271/ CPN-8 25 ft PC, AC Line to CN/11 CX-272/ CPN-8 6 ft "Y" PC, AC to R-56/, TS-112/ or CN-11/, and T-50/ CY-68/ CPN-8 Eqpt Case CY-166/ CPN-8 Chest for AB-18/ & AS-72/ CY-248/ CPN-8 Spare Parts Case MX-545/ CPN-8 Standardization Kit TS-121/ CPN-8 Monitor Unit CPN-9,10,13 Radar Beacons CPN-15,16 Beacons CY-439/ CPN-16 Batt Box CPN-17 S-Band IFF-Beacon Galvin Radio R-99/ CPN-17 S-Band Rcvr. 60 MC IF T-86/ CPN-17 Xmitter 3265-3335 MC AB-90/ CPN-17 Antenna Mast AB-112/ CPN-17 Yardarm Ant. Mount AM-44/CPN-6 CPN-17 Mod Driver AM-53/ CPN-17 IF Amp. AS-221/ CPN-17 Antenna CG-107/ CPN-17 Cord CX-232,238/ CPN-17 Cords CY-170/ CPN-17 Cabinet for R-99, AM-44, KY-25 F-12/CPN-6 CPN-17 Discriminator Filter KY-25/ CPN-17 Coder Unit MX-202/CPN-6 CPN-17 Auto-Xformer PP-93/CPN-6 CPN-17 Xmitter PS DP- Drone/Pilotless Vehicles (Mainly Aircraft) ------------------------------------------------------------------------------ DPN-1 S-Band Drone Beacon 10 KW PP DPN-3* S-Band Drone Beacon Martin Co. AN 16-30DPN3-3 R-380/ DPN-3 Receiver, 2700-2900 MC T-270/ DPN-3 Transmitter, 50 W-Pk AT-289/AP DPN-3 Antenna PP-605/ DPN-3A PS TN-144A/ DPN-3 Reveiver RF Filter DPN-9,19 S-Band Drone Beacon c 2900 MC 50 W DPN-17* S-Band Drone Beacon Motorola R-471/ DPN-17 Receiver R-559/ DPN-17A Receiver T-344/DPN DPN-17 Xmtr, 100 W Pk PP-1063/ DPN-17 PS 115 V, 400 C TN-209/DPN DPN-17 Tuned Cavity Filter TN-297/DPN DPN-17B Tuned Cavity Filter DPN-25 S-Band Drone Beacon, 3400 MC, 100 W-Pk S/T DPN-17 TN-220/ DPN-25 Tuned Cavity, 3400 MC DPN-32 X-Band Drone Beacon 9300-9500 MHz 50 W PP DPN-37,38 S-Band Drone Beacons U/W TROUNCE Guidance Syst. Chance-Vought R-636/ DPN-37 Receiver, 2700-2900 MC R-636A/ DPN-38 Receiver, 3350-3550 MC T-533/ DPN-37 Xmtr, 2700-2900 MC T-534/ DPN-38 Xmtr, 3350-3550 MC TD-120/DPN Pulse Delay Unit DPN-62 X-Band Drone Beacon U/W MPQ-29 TM 11-5895-252-* 1959 RT-540/ DPN-62 RF Unit 8,500-9,600 MC, 100 W PP CU-776/ DPN-62 Duplexer PP-2426/ DPN-62 Power Supply DPN-66 C-Band Beacon 500 W Motorola DPN-77 C-Band Xponder 400 W-Pk Rodale DPN-78A X-Band Xponder 200 W-PK Rodale DPN-82 L-Band Xponder 500 W-Pk Stew-Warner FPN-13 Fixed Station X-Band Beacon, 5 KW-Pk R/F CPN-8 Webcor GPN-2 Mobile S-Band Beacon & Nav. Aid P/O MPN-3 Bendix 2-18 & 100-156 MC Radios 98145,98302,98362,98866, 900935 1956 R-176/ GPN-2 Receiver T-149/ GPN-2 Xmitter AS-78/MPN-1 GPN-2 VHF Whip Antenna AS-317/ GPN-2 Antenna AS-338/ GPN-2 Antenna GPN-4 Radar Beacon MPN-8 Mobile X-Band Beacon, 40 KW-Pk (CPN-6) Thordarson-Meissner 95016 UPA-25 MPS-4C Indicator Group large CRT 92433 RT-140/ MPS-4 RF Unit, 6275-6575 MC, 140 KW-Pk AM-228/ MPS-4 Control-Amplifier AS-403/ MPS-4 Antenna (vert dish) C-489/ MPS-4 Master Control IP-14,15/ MPS-4 Indicators MD-88/ MPS-4 Modulator PP-324/ MPS-4 PS PU-156/ MPS-4 M-G PS PU-239A/G MPS-4C Generator Set S-112/ MPS-4C Shelter CG-20AGD MPS-4 PS PPN-1,A Paratrooper Beacon U/W APN-2 S/T Eureka Mk 3 TM 11-1140 1944 RT-9,RT-44/ PPN-1 R-T Units, 214-234 MC (with destructor units) AS-10/ PPN-1 Antenna CG-151/ PPN-1 Cable CG-193,204/ PPN-1 Extension Cables 12-44 PP-11A/ PPN-1 Vib PS 6 VDC to 250 VDC BB-210/U PPN-2 Radar Beacon "Eureka" U/W APN-2 "Rebecca" TM 11-1145 1944 RT-37/ PPN-2 RF Unit, 214-234 MC 9 tubes AS-73/ PPN-2 Antenna and Mast Assembly, 214-234 MC CG-101/ PPN-2 AS-73/ to RT-37 Cable (UG-203/U) IE-45 PPN-2 Depot Test Equipment UG-99/ PPN-2 Test Adapter British Plug to SO-239/U U/W IE-45 PPN-3-9 Radar Beacons PPN-10 Portable Ground Locator Beacon (former SCR-599) PPN-17 X-Band Transponder 9310 MC 500 W PP PPN-18 Ku-Band Beacon 16.2 GHz 6-Ch Coder PPN-19 Beacon, Used in CH- Aircraft and small boats SPN-1 Radar Beacon for surface vessels c 1945 SPN-8* X-Band Beacon U/W SIC-1, SSQ-14 91643,91879 OA-364/ SPN-8 R-T Group, 9000-9200 MC, 40-60 KW-Pk AM-396/ SPN-8 IF Amplifier 91879 AS-477/ SPN-8 Antenna (horz dish) C-1063,82/ SPN-8 Indicator Controls CW-205/ SPN-8 Radome CY-1502/ SPN-8A Cabinet FR-68/UP SPN-8 Tuned Cavity J-582/ SPN-8A Inter-Bx OA-156-158/ SPN-8 PPI Indicator Groups OS-14/ SPN-8 Oscilloscope RE-127/ SPN-8 Solenoid Relay SPN-20 LORAN Beacon S/T SPN-24 92555* CU-468/ SPN-20 Antenna Coupler USM-181A SPN-42 Test Oscilloscope TPN-1 Radar Beacon for paratroops (modified SCR-695) RT-13/ TPN-1 RF Unit, 160-190 MC, 29.5 MC IF 13 tubes TO 08-10-168 AT-16/ TPN-1 Antenna CX-16/ TPN-1 RG-8 Cable (PL-259 & MC-277) for RT-13/ to AT-16/ TPN-2 Radar Beacon RT-71/ TPN-2 RF Unit, 213-234 MC, 33.5 MC IF 17 tubes CX-295/ TPN-2 Cable, RT-71/ to J-122/ CX-296/ TPN-2 AC Cable CY-2641/ TS-223/ Case J-122/ TPN-2 PS JBx TS-233/TPN TPN-2 Test Set 213-234 MC TM 11-1157 TPN-3 Radar Beacon 160-190 MC (modified SCR-695) AN 08-10-190 RT-13 ? AT-16/TPN-1 TPN-3 Antenna UPM-1* Beacon/IFF Test Set (TS-233,234, AT-50,51) 900845 TM 11-1176 J-94/ UPM-1 Detector JBx MT-189 UPM-1 Test Console UPN-* Family of Radar Beacons CV-27/ UPN Freq-Conv, 175 KC output U/W APN-4,9 UPN-1 SA-Band Re-xmit Beacon, 5 codes, 35 Miles, U/W SCR-717 1945 RT-72/ UPN-1 RF Unit, 2700-3400 MC 16 tubes Hallicrafters 12 VDC AS-171/UP UPN-1 Horz Antenna BB-210/U UPN-1 Battery CY-220/ UPN-1 Case CY-222/ UPN-1 Battery Case UPN-2 S-Band Retransmission Beacon Hallicrafters 1944 RT-73/ UPN-2 Rcvr-Xmtr, 2700-3400 MC 50 WPP 19 tubes AB-49/ UPN-2 Antenna Base Tripod AS-171/UP UPN-2 Antenna CG-92/U Antanna Coax Cable, 54" CY-223/ UPN-2 Case UPN-3 XA-Band Beacon 12 response-codes, 120 lbs U/W APS-10 1946 RT-84/ UPN-3 Receiver-Transmitter, 9310 MC, 300 W PP 2J41 magnetron CY-356/ UPN-3 Maintenance Equipment Case PP-156/ UPN-3 Rectifier PS, 12 V Battery UPN-4 Xa-Band Beacon, 500 W-Pk 5 codes 55 lbs GILF U/W APS-10 RT-83/ UPN-4 RF Unit, 9310 MC 110 MC IF Gilfillan AS-235/ UPN-4 Antenna BB-222/ UPN-4 Battery Pack CX-963,964/ UPN-4 Power Cables CX-1000/ UPN-4 Power Cable for PP-168/ CY-336/ UPN-4 Carrying Case CY-338/ UPN-4 Maintenance Equipment Case MT-363/ UPN-4 Tripod PP-168/ UPN-4 Battery Charger ST-102,03,07 UPN-4 Carrying Harnesses UPN-5,6 Radar Beacons UPN-7 RT-186/ S-Band Beacon, 2800-2900 MC Melpar 91602 AT-244/ UPN-7 Antenna UG-551/U UPN-7 Coax-Waveguide Adapter UPN-8-10 Radar Beacons UPN-11 X-Band Beacon 300 W-Pk Melpar UPN-25 X-Band Transponder, 400 W-Pk Motorola * * * RETURN TO INDEX