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

Chinese UHF Tactical SATCOM

Looks like using circular polarization.

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)

A very good photo of the ELINT antenna radomes can be found here.

 

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

JASDF RADAR network

JASDF Aircraft Control and Warning Wing RADAR network