Monday, May 2, 2011

OTH RADAR in ECCM mode

OTH-B RADAR

Bandwidth: 20 kHz, PRF: 50Hz

OTH RADAR



















Bandwidth: 10 kHz










Pulse sequence: 1-2-2-2-2-2











Saturday, April 30, 2011

Chinese LPDA HFDF

An HFDF using LPDA array and probably using wavefront analysis method.
29°49'19.79" N 121°39'06.08" E

Chinese Over-the-horizon surface wave RADAR

Chinese Over-the-horizon surface wave RADAR


System 4
24°04'56.97" N 117°54'06.38" E


















System 3
25°47'25.10" N 119°37'08.79" E


















System 2
22°55'26.51" N 116°13'32.07" E


















Receiver site


















Transmitter site


















System 1
27°46'10.00" N 120°44'44.34" E


















Transmitter site


















Receiver site



















Spectrum and waterfall display of the Chinese OTH-SW RADAR. 



















Chinese military RADAR in the South China Sea



















Woody Island (16°50'09.50" N 112°20'24.80" E )




















Subi Reef (10°55'23.96" N 114°04'51.69" E)


































Fiery Cross Reef (9°38'57.37"N 112°58'37.08"E)
VHF RADAR

Thursday, April 28, 2011

Chinese UHF Tactical SATCOM

Looks like using circular polarization.

Monday, April 25, 2011

DIH ELINT sites

Okushiri Island (42.153844, 139.433842)
This site is probably one of the best land-based ELINT sites of Japan to monitor electronic signals of Russia on the Pacific ocean.











Nemuro (43°20'15.44" N 145°36'55.22" E)

 

Sunday, April 24, 2011

DIH COMINT sites

HFDF and satellite monitoring, Chitose Hokkaido
防衛省情報本部東千歳通信所
42°51'23.71" N 141°43'33.51" E




















HFDF, Sakaiminato
防衛省情報本部美保通信所
35°30'35.70" N 133°13'28.54" E




















HFDF, Kikai Island
防衛省情報本部喜界島通信所
28°18'09.84" N 129°57'54.72" E



















HFDF, Chikuzen, Kyushu
防衛省情報本部太刀洗通信所
33°26'44.91" N 130°35'59.20" E




















HFDF, ELINT(?)/SATCOM monitoring, Wakkanai, Hokkaido
45°26'10.60" N 141°39'01.14" E

Saturday, April 23, 2011

JASDF RADAR network

JASDF Aircraft Control and Warning Wing RADAR network