LDI, Lowell Digisonde International (Digisonde.com)

Color Legend
	Currently Operating
	Non-Active

Quick List
DPS4D (2008-present)* DPS4 (1996-2007) DPS1 (1995) DPS (1991-1995) Digisonde 256 (1988-1993) Digisonde D256 (1987-1988) Digisonde 256 (1978-1987) Digisonde 128 (1969-1979) Digisonde Model List *production years

Reference Links
Digisonde Station Map Station List by Location (UMLCAR)

DIGISONDE STATION LIST

#	Latest Location	System	S/N	Built	Notes


164		DPS4D	N014	July 2016
163		DPS4D	N013	July 2016
162		DPS4D	N012	Nov 2014
161	Alpena MI, USA	DPS4D	N011	May 2012
160	Hickam AFB HI, USA	DPS4D	N010	Mar 2012
159	Eielson AFB AK, USA	DPS4D	N009	Jan 2012
158	Guam, USA	DPS4D	N008	Jun 2011
157	Ascension Island	DPS4D	N007	Jun 2011
156	San Vito, Italy	DPS4D	N006	Apr 2011
155	Colorado Springs, CO, USA	DPS4D	N030	Mar 2011
154	Goose Bay, Canada	DPS4D	N005	Jan 2010
153	Learmonth, Australia	DPS4D	N004	Jan 2010
152	Fairford, England	DPS4D	N003	Sep 2009
151	Eglin AFB, FL, USA	DPS4D	N002	May 2009
150	Vandenberg AFB, CA, USA	DPS4D	N001	Feb 2009	(AKA PT ARGUELLO)


149		DPS4D	082	July 2015
148		DPS4D	081	March 2015
147	Sondrestrom, Greenland	DPS4D	080	April 2014	Upgraded from DPS4
146	Nord, Greenland	DPS4D	043	April 2014	Upgraded from DPS4
145	Lowell, MA, USA	DPS4D	079	Nov 2013	Test System
144	Gadanki, India	DPS4D	078	Oct 2013
143	Lexington, MA, USA	DPS4D	077	Sept 2013
142	New Delhi, India	DPS4D	076	June 2013
141	Gainsville, FL, USA	DPS4D	075	Aug 2013
140	Beijing, China	DPS4D	074	Mar 2013
139	Saint Petersburg, Russia	DPS4D	073	Sept 2012
138	Belem, Brazil	DPS4D	072	June 2012
137	Alta Floresta, Brazil	DPS4D	071	June 2012
136	Juliusruh, Germany	DPS4D	018	Dec 2011	Upgraded to 4D
135	Idaho National Lab ID, USA	DPS4D	070	Nov 2011
134	Campo Grande, Brazil	DPS4D	069	Nov 2011
133	Boa Vista, Brazil	DPS4D	068	Nov 2011
132	Kirtland AFB, NM, USA	DPS4D	067	Aug 2011
131	Roquetes, Spain	DPS4D	066	July 2011
130	Gakona, AK, USA	DPS4D	001	Feb 2011
129	Dourbes, Belgium	DPS4D	065	Feb 2011
128	Madimbo, South Africa	DPS4D	064	Dec 2010
127	Louisvale, South Africa	DPS4D	063	Dec 2010
126	Grahamstown, South Africa	DPS4D	062	Dec 2010
125	Shaoyang, China	DPS4D	061	Aug 2010
124	Sanya, China	DPS4D	060	Aug 2010
123	Ahmedabad, India	DPS4D	059	Apr 2010
122	I-Cheon, South Korea	DPS4D	041	Feb 2010	Upgraded to 4D from Anyang
121	Pruhonice, Czech Republic	DPS4D	035	Jan 2010	Upgraded to 4D
120	Hainan Is, China	DPS4D	030	Dec 2009	Upgraded to 4D
119	Beijing, China	DPS4D	058	Dec 2009
118	Zhongshan, Antarctica	DPS4D	057	Dec 2009	Upgraded to 4D
117	Mohe, China	DPS4D	056	Dec 2009
116	Wuhan, China	DPS4D	055	Nov 2009	Upgraded to 4D
115	Millstone Hill, MA, USA	DPS4D	054	Apr 2009
114	Jeju Island, Korea	DPS4D	053	Oct 2008
113	Belgrade, Serbia	DPS4D	052	Oct 2008
112	Trivandrum, India	DPS4D	051	Oct 2008
111	Nicosia, Cyprus	DPS4D	050	Jun 2008
110	Hermanus, South Africa	DPS4D	049	May 2008
109	Millstone Hill, MA, USA	DPS4D	048	Sep 2006	[prototype]
108	Millstone Hill, MA, USA	Digisonde 4S	047	Jan 2006	[prototype]


107	Multan, Pakistan	DPS4	046	Oct 2007
106	Moscow, Russia	DPS4	045	Oct 2006
105	CODEM	DPS4	044	Sep 2006
104	Nord, Greenland	DPS4	043	Jul 2006	Upgraded to 4D in April 2014
103	Xinxiang, China	DPS4	042	Mar 2006
102	Anyang, South Korea	DPS4	041	Oct 2005	Upgraded to 4D in February 2010
101	Ilorin, Nigeria	DPS4	040	Sep 2005
99	CODEM	DPS4	038	Sep 2004	mobile
98	CODEM	DPS4	037	Sep 2004	mobile
97	CODEM	DPS4	036	Aug 2004	mobile
96	Pruhonice, Czech Republic	DPS4	035	2003	Upgraded to 4D in January 2010
95	Norilsk, Russia	DPS4	034	2002
94	Zhigansk, Russia	DPS4	033	2002
93	Yakutsk, Russia	DPS4	032	2002
92	Irkutsk, Russia	DPS4	031	2002
91	Hainan Is., China	DPS4	030	2002	Upgraded to 4D in March 2010
90	Okinawa, Japan	DPS4	029	2001
89	Sao Luis, Brazil	DPS4	028b	2001	Campo Grande, Brazil
88	Fortaleza, Brazil	DPS4	028a	Jan 2001	Cachimbo, Brazil
87	Millstone Hill, MA, USA	DPS1	027	2001
86	Athens, Greece	DPS4	026	April 2001
85	San Marco, Kenya	DPS1	025	2000
84	Bundoora, Australia	DPS4	024	2000
83	Kwajalein Island	DPS4	023	2000	Boa Vista, Brazil \| Hanscom AFB, MA
82	CORIS / Paris, France	DPS1	022	1999
81	Rome, Italy	DPS4	021	June 1997
80	Louisvale, South Africa	DPS4	020	1999
79	Grahamstown, South Africa	DPS4	019	1996
78	Juliusruh, Germany	DPS4	018	Feb 1995	Upgraded to 4D, Upgraded to DPS4 in 1999
77	Port Stanley, Falkland Islands	DPS1	017	Dec 1994
76	Madimbo, South Africa	DPS4	016	Aug 1994
75	Chung-Li, Taiwan	DPS1	015	Nov 1993


74	JORN Depot	DPS1
73	JORN Depot	DPS1
72	JORN Coordination Centre, Adelaide, Australia	DPS1		1997
71	Ajana, Australia	DPS1		1997
70	Laverton, Australia	DPS1		1997
69	Boolathana, Australia	DPS1		1997
68	Longreach, Australia	DPS1		1997
67	Learmonth, Australia	DPS1		1997
66	South Hedland, Australia	DPS1		1997
65	Curtin RAAF Base, Australia	DPS1		1997
64	Lynd River, Australia	DPS1		1997
63	Scherger RAAF Base, Australia	DPS1		1997
62	Groote Eylandt, Australia	DPS1		1997
61	Kalkaringi, Australia	DPS1		1997


60	South Pole, Antarctica	DPS4	014		? previously at Zhong-Shan
59	Chilton, England	DPS1	013	July 1994
58	Pontianak, Indonesia	DPS1	012	June 1993
57	Alice Springs, Australia	DPS1	011	1995	Upgraded to DPS4 in 2001
56	Darwin NT, Australia	DPS1	010	May 1993	Upgraded to DPS4 in 2001
55	Okinawa, Japan	DPS1	009	Mar 1993
54	Davis Base, Antarctica	DPS4	008		Casey Base, Antarctica
53	Puerto Madryn, Argentina	DPS1	007	1993
52	Lerwick, Great Britain	DPS1	006	1993
51	Tromso, Norway	DPS4	005	1993
50	Elliott, Australia	DPS1	004	Dec 1994	Upgraded to DPS4 in 2001
49	Wyndham W.A., Australia	DPS1	003	Dec 1993	Derby, Australia
48	Jicamarca, Peru	DPS1	002	July 1993
47	HAARP / Gakona, AK	DPS4	001	1991	Upgraded to DPS4D in Feb 2011 Hanscom AFB,MA \| Ascension Island \| Agua Verde,Chile \| Svalbard,Norway


46	Wuhan, China	D256		1993	Replaced with 4D
45	El Arenosillo, Spain	D256		1993
44	Anyang, Korea	D256
43	Kokubunji, Japan	D256
42	Sao Luis, Brazil	D256			Cachoeira Paulista, Brazil
41	Beijing, China	D256		1988	Xinxiang, China
40	Islamabad, Pakistan	D256		1988


39	Ascension Island	D256
38	Sondrestrom, Greenland	DPS4
37	Boulder, CO, USA	D256			Tobyhanna, PA, USA
36	College, AK, USA	D256
35	King Salmon, AK, USA	D256
34	Narssarssuaq, Greenland	D256
33	Fairford, England	D256			Replaced with NEXION
32	San Vito, Italy	D256
31	Osan AFB, Korea	D256
30	Point Arguello, CA, USA	D256			Replaced with NEXION
29	Austin, TX, USA	D256			Dyess AFB, TX, USA
28	Eglin AFB, FL, USA	D256			Replaced with NEXION
27	Ramey, Puerto Rico	D256
26	Learmonth, Australia	D256			Replaced with NEXION
25	Tucuman, Argentina	D256		1989	Bermuda, UK
24	Hanscom AFB, MA, USA	D256			Argentia, Canada
23	Goose Bay, Canada	D256			Replaced with NEXION


22	Millstone Hill, MA, USA	D256		1987
21	Karachi, Pakistan	D256		1986
20	Wallops Island, VA	D256		1986
19	Bermuda, United Kingdom	D256		1986
18	Roquetes/Tortosa, Spain	D256		1986	Fort Monmouth, NJ, USA
17	Cachoeira Paulista, Brazil	D256		1986	Argentia, Canada
16	Dourbes, Belgium	D256		1986	Replaced with 4D
15	Qaanaaq / Thule, Greenland	D256		1983
14	Beveridge, Australia	D256		1983
13	Hainan Island, China	D256		1982	Beijing, China
12	Slough, England	D256		1980


11	Kwajalein Island	D128PS		1978
10	Rome, Italy	D128P		1977
9	Millstone Hill, MA, USA	D128P		1977
8	Athens, Greece	D128P		1977
7	Freighburg (Breisach), Germany	D128
6	Torino, Italy	D128			Genoa, Italy
5	K135 Aircraft	D128, 128PS
4	Munich, Germany	D128			Fort Mammouth, NJ, USA
3	Dourbes, Belgium	D128		1970	Upgraded to 256
2	Goose Bay, Canada	D128, 128P, 128PS		1970
1	Maynard, MA, USA	D128		1969	Eglin AFB, FL, USA

Digisonde Models

Type	Description	Production Years
DPS4D	Digisonde4D	(2008-present)
DPS4	Four-Receiver Digisonde Portable Sounder	(1995-2001
DPS1	Single-Receiver Digisonde Portable Sounder	(1991-1995)
D256	Digisonde-256	(1978-1988)
D128	Digisonde-128	(1969-1979)

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