Rank
|
Page title
|
Views
|
Daily average
|
Assessment
|
Importance
|
1
|
NATO phonetic alphabet
|
235,714
|
7,857
|
C
|
Low
|
2
|
Morse code
|
154,838
|
5,161
|
B
|
High
|
3
|
Guglielmo Marconi
|
39,112
|
1,303
|
B
|
Mid
|
4
|
Amateur radio
|
31,319
|
1,043
|
B
|
Top
|
5
|
Radio frequency
|
24,889
|
829
|
C
|
High
|
6
|
Duga radar
|
23,788
|
792
|
B
|
Low
|
7
|
Amplitude modulation
|
19,457
|
648
|
C
|
High
|
8
|
Frequency modulation
|
18,245
|
608
|
B
|
High
|
9
|
Software-defined radio
|
16,901
|
563
|
C
|
Mid
|
10
|
Dipole antenna
|
16,163
|
538
|
B
|
Mid
|
11
|
Ionosphere
|
15,717
|
523
|
B
|
Mid
|
12
|
Yagi–Uda antenna
|
14,028
|
467
|
C
|
Mid
|
13
|
Q code
|
10,493
|
349
|
C
|
Mid
|
14
|
Single-sideband modulation
|
10,081
|
336
|
B
|
High
|
15
|
Frequency-shift keying
|
9,874
|
329
|
Start
|
Mid
|
16
|
North Sea flood of 1953
|
8,996
|
299
|
C
|
Low
|
17
|
Rockwell Collins
|
8,090
|
269
|
C
|
Low
|
18
|
Radio masts and towers
|
7,257
|
241
|
C
|
Low
|
19
|
Amateur radio frequency allocations
|
6,860
|
228
|
Start
|
High
|
20
|
Kenwood Corporation
|
6,791
|
226
|
Start
|
Mid
|
21
|
CQD
|
6,735
|
224
|
Start
|
Low
|
22
|
Carrier wave
|
6,376
|
212
|
Start
|
Low
|
23
|
Automatic Packet Reporting System
|
6,324
|
210
|
C
|
Mid
|
24
|
Baofeng UV-5R
|
6,219
|
207
|
Start
|
Low
|
25
|
Zenith Electronics
|
6,093
|
203
|
C
|
Low
|
26
|
Slow-scan television
|
5,836
|
194
|
B
|
High
|
27
|
Baudot code
|
5,678
|
189
|
Start
|
Low
|
28
|
Call signs in the United States
|
5,169
|
172
|
Start
|
Low
|
29
|
Radio propagation
|
5,125
|
170
|
B
|
Top
|
30
|
CQ (call)
|
4,639
|
154
|
Stub
|
Low
|
31
|
Earth–Moon–Earth communication
|
4,560
|
152
|
Start
|
Mid
|
32
|
Skywave
|
4,486
|
149
|
B
|
High
|
33
|
Prosigns for Morse code
|
4,184
|
139
|
C
|
Mid
|
34
|
DigiKey
|
3,902
|
130
|
Start
|
Low
|
35
|
FT8
|
3,696
|
123
|
Stub
|
Unknown
|
36
|
Amateur television
|
3,674
|
122
|
Start
|
High
|
37
|
Maidenhead Locator System
|
3,668
|
122
|
C
|
Mid
|
38
|
D-STAR
|
3,632
|
121
|
C
|
Low
|
39
|
QSL card
|
3,565
|
118
|
Start
|
High
|
40
|
10-meter band
|
3,548
|
118
|
B
|
High
|
41
|
70-centimeter band
|
3,442
|
114
|
Start
|
High
|
42
|
Continuous wave
|
3,410
|
113
|
Start
|
High
|
43
|
Surface wave
|
3,389
|
112
|
B
|
Mid
|
44
|
Hiram Percy Maxim
|
3,349
|
111
|
Start
|
Mid
|
45
|
2-meter band
|
3,349
|
111
|
Start
|
High
|
46
|
Amateur radio operator
|
3,244
|
108
|
Start
|
Top
|
47
|
Heathkit
|
3,051
|
101
|
B
|
Mid
|
48
|
Radioteletype
|
2,986
|
99
|
B
|
High
|
49
|
Amateur radio licensing in the United States
|
2,864
|
95
|
B
|
Low
|
50
|
ITU Region
|
2,835
|
94
|
Stub
|
Low
|
51
|
Amateur radio call signs
|
2,818
|
93
|
Start
|
High
|
52
|
Military Auxiliary Radio System
|
2,759
|
91
|
B
|
Low
|
53
|
6-meter band
|
2,715
|
90
|
Start
|
High
|
54
|
Call signs in North America
|
2,652
|
88
|
Start
|
Low
|
55
|
Communication during the September 11 attacks
|
2,523
|
84
|
B
|
Low
|
56
|
Owen Garriott
|
2,514
|
83
|
B
|
Low
|
57
|
DXing
|
2,501
|
83
|
Start
|
High
|
58
|
Velocity factor
|
2,436
|
81
|
Start
|
High
|
59
|
Near vertical incidence skywave
|
2,404
|
80
|
Start
|
Mid
|
60
|
WSJT (amateur radio software)
|
2,370
|
79
|
Start
|
Low
|
61
|
Antenna tuner
|
2,363
|
78
|
C
|
Low
|
62
|
Etymology of ham radio
|
2,332
|
77
|
Start
|
Low
|
63
|
J-pole antenna
|
2,322
|
77
|
C
|
Mid
|
64
|
MFJ Enterprises
|
2,315
|
77
|
Stub
|
Low
|
65
|
WARC bands
|
2,285
|
76
|
Start
|
Mid
|
66
|
QRP operation
|
2,253
|
75
|
Start
|
Mid
|
67
|
Packet radio
|
2,245
|
74
|
Start
|
High
|
68
|
40-meter band
|
2,159
|
71
|
Start
|
High
|
69
|
International reply coupon
|
2,050
|
68
|
Start
|
Low
|
70
|
QRZ.com
|
2,000
|
66
|
Start
|
Low
|
71
|
1.25-meter band
|
1,944
|
64
|
Start
|
Mid
|
72
|
20-meter band
|
1,900
|
63
|
Stub
|
High
|
73
|
Amateur radio satellite
|
1,892
|
63
|
C
|
Low
|
74
|
Telegraph key
|
1,875
|
62
|
Start
|
Mid
|
75
|
ITU prefix
|
1,836
|
61
|
Start
|
Mid
|
76
|
R-S-T system
|
1,813
|
60
|
Start
|
Mid
|
77
|
Ham radio
|
1,723
|
57
|
NA
|
NA
|
78
|
PSK31
|
1,634
|
54
|
B
|
Mid
|
79
|
AX.25
|
1,609
|
53
|
Start
|
Low
|
80
|
Diplexer
|
1,587
|
52
|
Start
|
Low
|
81
|
International Amateur Radio Union
|
1,540
|
51
|
Start
|
Top
|
82
|
60-meter band
|
1,501
|
50
|
Start
|
Mid
|
83
|
DX-pedition
|
1,497
|
49
|
Start
|
High
|
84
|
Winlink
|
1,466
|
48
|
Start
|
Mid
|
85
|
American Radio Relay League
|
1,449
|
48
|
C
|
High
|
86
|
List of amateur radio modes
|
1,411
|
47
|
List
|
Mid
|
87
|
33-centimeter band
|
1,393
|
46
|
Start
|
Mid
|
88
|
Automatic link establishment
|
1,377
|
45
|
C
|
Mid
|
89
|
List of amateur radio transceivers
|
1,359
|
45
|
List
|
Low
|
90
|
Yaesu (brand)
|
1,334
|
44
|
Start
|
Mid
|
91
|
80-meter band
|
1,306
|
43
|
Start
|
High
|
92
|
Parks On The Air
|
1,277
|
42
|
Stub
|
High
|
93
|
Sporadic E propagation
|
1,254
|
41
|
Start
|
Mid
|
94
|
Beat frequency oscillator
|
1,231
|
41
|
Start
|
Mid
|
95
|
Fldigi
|
1,225
|
40
|
C
|
Low
|
96
|
Grote Reber
|
1,188
|
39
|
C
|
Low
|
97
|
AMPRNet
|
1,174
|
39
|
B
|
Mid
|
98
|
Beverage antenna
|
1,139
|
37
|
Start
|
Low
|
99
|
Dummy load
|
1,121
|
37
|
Start
|
Low
|
100
|
Amateur radio repeater
|
1,119
|
37
|
Start
|
High
|
101
|
Call signs in the United Kingdom
|
1,102
|
36
|
Start
|
Low
|
102
|
Peak envelope power
|
1,101
|
36
|
Start
|
Low
|
103
|
G5RV antenna
|
1,100
|
36
|
Stub
|
Low
|
104
|
Maximum usable frequency
|
1,097
|
36
|
Start
|
Mid
|
105
|
Multiple frequency-shift keying
|
1,093
|
36
|
Start
|
Mid
|
106
|
Call signs in Canada
|
1,090
|
36
|
C
|
Low
|
107
|
Contact (amateur radio)
|
1,089
|
36
|
Stub
|
Mid
|
108
|
8-meter band
|
1,086
|
36
|
Start
|
Mid
|
109
|
S meter
|
1,056
|
35
|
Start
|
Mid
|
110
|
Amateur radio in India
|
1,025
|
34
|
B
|
Mid
|
111
|
Driven and parasitic elements
|
1,017
|
33
|
Start
|
High
|
112
|
Wireless Set No. 19
|
992
|
33
|
C
|
Low
|
113
|
23-centimeter band
|
966
|
32
|
Stub
|
Mid
|
114
|
Field Day (amateur radio)
|
965
|
32
|
Start
|
High
|
115
|
EchoLink
|
962
|
32
|
Start
|
Mid
|
116
|
Linear amplifier
|
959
|
31
|
Start
|
Low
|
117
|
Long delayed echo
|
954
|
31
|
Start
|
Low
|
118
|
Amateur radio direction finding
|
944
|
31
|
C
|
High
|
119
|
Z code
|
941
|
31
|
Start
|
Low
|
120
|
ACP 131
|
940
|
31
|
C
|
Low
|
121
|
4-metre band
|
923
|
30
|
Start
|
Mid
|
122
|
List of amateur radio software
|
920
|
30
|
List
|
Mid
|
123
|
Surrey Satellite Technology
|
912
|
30
|
B
|
Low
|
124
|
Popular Electronics
|
911
|
30
|
C
|
Low
|
125
|
Lafayette Radio Electronics
|
876
|
29
|
Start
|
Low
|
126
|
Hallicrafters
|
861
|
28
|
Start
|
Low
|
127
|
160-meter band
|
843
|
28
|
Start
|
High
|
128
|
Hellschreiber
|
838
|
27
|
Start
|
Mid
|
129
|
15-meter band
|
823
|
27
|
Stub
|
High
|
130
|
Amateur radio operating award
|
821
|
27
|
Stub
|
High
|
131
|
Radio shack
|
817
|
27
|
Stub
|
Low
|
132
|
RS Americas, Inc
|
804
|
26
|
Start
|
Low
|
133
|
CQ Amateur Radio
|
785
|
26
|
Start
|
Low
|
134
|
History of amateur radio
|
780
|
26
|
C
|
Top
|
135
|
Skywarn
|
779
|
25
|
Start
|
Low
|
136
|
Icom Incorporated
|
773
|
25
|
Stub
|
Mid
|
137
|
Transmitter hunting
|
772
|
25
|
B
|
Mid
|
138
|
List of amateur radio frequency bands in India
|
765
|
25
|
FL
|
Mid
|
139
|
500 kHz
|
751
|
25
|
Start
|
Low
|
140
|
Radiogram (message)
|
751
|
25
|
C
|
Low
|
141
|
Radio Act of 1912
|
745
|
24
|
Start
|
Low
|
142
|
Yaesu FT-101
|
740
|
24
|
Stub
|
Low
|
143
|
FalconSAT
|
733
|
24
|
Start
|
Low
|
144
|
M17 (amateur radio)
|
729
|
24
|
Start
|
Low
|
145
|
Contesting
|
727
|
24
|
B
|
High
|
146
|
Yaesu VX series
|
717
|
23
|
C
|
Low
|
147
|
Amateur radio propagation beacon
|
716
|
23
|
Start
|
Mid
|
148
|
2200-meter band
|
712
|
23
|
Start
|
Mid
|
149
|
ICOM IC-7300
|
700
|
23
|
Stub
|
Unknown
|
150
|
Voice-operated switch
|
694
|
23
|
Start
|
Low
|
151
|
Terminal node controller
|
690
|
23
|
Start
|
Mid
|
152
|
R-390A
|
690
|
23
|
Start
|
Low
|
153
|
Lost Boy Larry
|
669
|
22
|
C
|
Low
|
154
|
KISS (amateur radio protocol)
|
668
|
22
|
Start
|
Mid
|
155
|
Radiosport
|
659
|
21
|
Start
|
Mid
|
156
|
Grid dip oscillator
|
659
|
21
|
Start
|
Low
|
157
|
Amateur Radio Emergency Service
|
652
|
21
|
Start
|
Mid
|
158
|
AMSAT-OSCAR 7
|
645
|
21
|
Start
|
Low
|
159
|
AMSAT
|
637
|
21
|
Start
|
Mid
|
160
|
Inverted vee antenna
|
626
|
20
|
Stub
|
Mid
|
161
|
Call signs in Australia
|
620
|
20
|
List
|
Low
|
162
|
Quad antenna
|
611
|
20
|
Stub
|
Low
|
163
|
High-speed multimedia radio
|
606
|
20
|
C
|
Low
|
164
|
Astatic Corporation
|
599
|
19
|
Start
|
Low
|
165
|
QST
|
597
|
19
|
C
|
Mid
|
166
|
Amateur radio station
|
597
|
19
|
B
|
Top
|
167
|
Multi-Band Excitation
|
597
|
19
|
Start
|
Mid
|
168
|
Hidetsugu Yagi
|
594
|
19
|
C
|
Low
|
169
|
BC-348
|
589
|
19
|
Start
|
Low
|
170
|
PSK Reporter
|
583
|
19
|
Start
|
Mid
|
171
|
PACTOR
|
578
|
19
|
Start
|
Mid
|
172
|
Meteor burst communications
|
573
|
19
|
Start
|
Mid
|
173
|
Skip zone
|
567
|
18
|
Stub
|
Low
|
174
|
Amateur radio emergency communications
|
565
|
18
|
Start
|
High
|
175
|
630-meter band
|
548
|
18
|
Start
|
Mid
|
176
|
Radio Amateur Civil Emergency Service
|
523
|
17
|
Start
|
Mid
|
177
|
Russian Morse code
|
520
|
17
|
Start
|
Low
|
178
|
Japan Radio Company
|
517
|
17
|
Stub
|
Low
|
179
|
Amateur radio international operation
|
510
|
17
|
C
|
Mid
|
180
|
Maritime mobile amateur radio
|
497
|
16
|
Start
|
Mid
|
181
|
13-centimeter band
|
492
|
16
|
Stub
|
High
|
182
|
Vintage amateur radio
|
479
|
15
|
GA
|
High
|
183
|
KPH (radio station)
|
457
|
15
|
Start
|
Mid
|
184
|
Call signs in Asia
|
448
|
14
|
Start
|
Low
|
185
|
ICOM IC-705
|
448
|
14
|
Start
|
Low
|
186
|
EF Johnson Technologies
|
445
|
14
|
Stub
|
Low
|
187
|
Olivia MFSK
|
423
|
14
|
Start
|
Low
|
188
|
Radio Emergency Associated Communication Teams
|
421
|
14
|
Start
|
Low
|
189
|
Amateur radio call signs in Africa
|
418
|
13
|
Start
|
Low
|
190
|
Amateur Radio on the International Space Station
|
417
|
13
|
C
|
Low
|
191
|
R. L. Drake Company
|
409
|
13
|
Start
|
Low
|
192
|
Yaesu FT-891
|
406
|
13
|
Start
|
Low
|
193
|
Amateur radio net
|
403
|
13
|
B
|
Mid
|
194
|
Shintaro Uda
|
398
|
13
|
Start
|
Low
|
195
|
W1AW
|
394
|
13
|
Start
|
High
|
196
|
Hamfest
|
392
|
13
|
Start
|
Mid
|
197
|
Transverter
|
382
|
12
|
Start
|
Mid
|
198
|
Sputnik 99
|
378
|
12
|
B
|
Low
|
199
|
Autopatch
|
374
|
12
|
Stub
|
Mid
|
200
|
Citizens band radio in India
|
374
|
12
|
Stub
|
Low
|
201
|
Boat anchor (metaphor)
|
365
|
12
|
Start
|
Low
|
202
|
SCR-284
|
361
|
12
|
Stub
|
Low
|
203
|
Hammarlund
|
360
|
12
|
Start
|
Low
|
204
|
Trinidad and Tobago Amateur Radio Society
|
354
|
11
|
Start
|
Mid
|
205
|
Sudden ionospheric disturbance
|
353
|
11
|
Start
|
Low
|
206
|
AN/ART-13
|
353
|
11
|
Start
|
Low
|
207
|
Dayton Hamvention
|
351
|
11
|
Stub
|
Low
|
208
|
SuitSat
|
348
|
11
|
Start
|
Low
|
209
|
LowFER
|
344
|
11
|
Start
|
Low
|
210
|
Absorption wavemeter
|
343
|
11
|
Stub
|
Low
|
211
|
National Traffic System
|
335
|
11
|
Start
|
Low
|
212
|
Logbook of The World
|
327
|
10
|
Start
|
Low
|
213
|
Modulated continuous wave
|
322
|
10
|
Stub
|
Mid
|
214
|
Radio Society of Great Britain
|
319
|
10
|
Start
|
High
|
215
|
List of amateur radio magazines
|
319
|
10
|
List
|
Low
|
216
|
Hallicrafters SX-28
|
315
|
10
|
B
|
Mid
|
217
|
3Y0J Bouvet Island DXpedition
|
309
|
10
|
C
|
Mid
|
218
|
Charles E. Apgar
|
307
|
10
|
GA
|
Mid
|
219
|
Internet Radio Linking Project
|
305
|
10
|
Start
|
Mid
|
220
|
Call signs in Russia
|
304
|
10
|
Start
|
Low
|
221
|
SITOR
|
300
|
10
|
Stub
|
Low
|
222
|
International Beacon Project
|
298
|
9
|
Stub
|
Low
|
223
|
Communications receiver
|
293
|
9
|
Start
|
High
|
224
|
List of amateur radio organizations
|
291
|
9
|
List
|
Low
|
225
|
Amateur radio homebrew
|
291
|
9
|
Start
|
High
|
226
|
SUNSAT
|
288
|
9
|
Stub
|
Low
|
227
|
OSCAR
|
286
|
9
|
NA
|
Mid
|
228
|
Braid-breaker
|
285
|
9
|
Start
|
Low
|
229
|
Vibroplex
|
284
|
9
|
Stub
|
Low
|
230
|
Ham radio (disambiguation)
|
281
|
9
|
Disambig
|
NA
|
231
|
U.S. Military Telegraph Corps
|
280
|
9
|
B
|
Low
|
232
|
Crossband operation
|
279
|
9
|
Stub
|
Low
|
233
|
QRA locator
|
270
|
9
|
Start
|
Low
|
234
|
Phil Karn
|
267
|
8
|
Stub
|
Low
|
235
|
Call signs in the Middle East
|
263
|
8
|
C
|
Low
|
236
|
Paraset
|
261
|
8
|
Start
|
Low
|
237
|
Ladder line
|
257
|
8
|
NA
|
Low
|
238
|
High-speed telegraphy
|
254
|
8
|
B
|
Mid
|
239
|
Wireless Set Number 11
|
252
|
8
|
Start
|
Low
|
240
|
APRS Calling
|
251
|
8
|
Start
|
Low
|
241
|
National HRO
|
245
|
8
|
Start
|
Low
|
242
|
73 (magazine)
|
245
|
8
|
Start
|
Low
|
243
|
Swan Electronics
|
244
|
8
|
Start
|
Low
|
244
|
Call signs in New Zealand
|
241
|
8
|
Start
|
Low
|
245
|
Modern Electrics
|
239
|
7
|
Stub
|
Low
|
246
|
BaoFeng UV-5R
|
238
|
7
|
NA
|
Low
|
247
|
Eico
|
236
|
7
|
Stub
|
Low
|
248
|
5-centimeter band
|
236
|
7
|
Stub
|
Mid
|
249
|
Call signs in India
|
234
|
7
|
Start
|
Low
|
250
|
Alinco
|
231
|
7
|
Stub
|
Low
|
251
|
Radio News
|
230
|
7
|
Start
|
Low
|
252
|
Call signs in Japan
|
230
|
7
|
Start
|
Low
|
253
|
QN Signals
|
226
|
7
|
Unknown
|
Unknown
|
254
|
DX cluster
|
223
|
7
|
Start
|
Low
|
255
|
5-meter band
|
220
|
7
|
Start
|
Low
|
256
|
Call signs in Korea
|
219
|
7
|
Start
|
Low
|
257
|
National Radio Company
|
217
|
7
|
Stub
|
Low
|
258
|
AMTOR
|
209
|
6
|
Stub
|
Low
|
259
|
KA9Q
|
207
|
6
|
Stub
|
Low
|
260
|
Saudi-OSCAR 50
|
197
|
6
|
Start
|
Low
|
261
|
CW Skimmer
|
197
|
6
|
Stub
|
Low
|
262
|
Popular Communications
|
195
|
6
|
Stub
|
Low
|
263
|
ICOM IC-7100
|
188
|
6
|
Stub
|
Unknown
|
264
|
High Frequency Internet Protocol
|
184
|
6
|
Stub
|
Low
|
265
|
Japan Amateur Radio League
|
179
|
5
|
Stub
|
High
|
266
|
Harold Beverage
|
177
|
5
|
Start
|
Low
|
267
|
Junk box
|
177
|
5
|
Start
|
Low
|
268
|
Wide-coverage Internet Repeater Enhancement System
|
177
|
5
|
Stub
|
Low
|
269
|
Radio Amateurs of Canada
|
176
|
5
|
Stub
|
Mid
|
270
|
Sloper antenna
|
176
|
5
|
Stub
|
Low
|
271
|
Computer aided transceiver
|
176
|
5
|
Start
|
Low
|
272
|
Yaesu FT-1000MP
|
175
|
5
|
Start
|
Low
|
273
|
Russian Amateur Radio Union
|
167
|
5
|
Stub
|
High
|
274
|
Amateur radio licensing in China
|
166
|
5
|
Start
|
Low
|
275
|
Radio Amateurs Emergency Network
|
165
|
5
|
Stub
|
Low
|
276
|
Fox-1B
|
165
|
5
|
Start
|
Low
|
277
|
Improved Layer 2 Protocol
|
163
|
5
|
Stub
|
Low
|
278
|
Amateur radio license
|
161
|
5
|
NA
|
NA
|
279
|
Ham Radio Deluxe
|
160
|
5
|
Stub
|
Low
|
280
|
SumbandilaSat
|
155
|
5
|
Start
|
Low
|
281
|
Amateur radio licence categories in India
|
155
|
5
|
Stub
|
Mid
|
282
|
SPLAT!
|
155
|
5
|
Stub
|
Mid
|
283
|
Salvation Army Team Emergency Radio Network
|
153
|
5
|
Stub
|
Low
|
284
|
Passive radiator
|
152
|
5
|
NA
|
NA
|
285
|
Hammarlund Super Pro
|
152
|
5
|
Start
|
Low
|
286
|
QEX
|
152
|
5
|
Stub
|
Low
|
287
|
Call signs in Europe
|
152
|
5
|
Start
|
Low
|
288
|
Call signs in Antarctica
|
150
|
5
|
Start
|
Low
|
289
|
HamSphere
|
148
|
4
|
Start
|
Low
|
290
|
HAMSAT
|
143
|
4
|
Stub
|
Low
|
291
|
South African Radio League
|
142
|
4
|
Start
|
Mid
|
292
|
Pi network
|
140
|
4
|
NA
|
NA
|
293
|
DX Century Club
|
138
|
4
|
NA
|
Low
|
294
|
Electronics Australia
|
131
|
4
|
Stub
|
Low
|
295
|
Call signs in Mexico
|
131
|
4
|
C
|
Low
|
296
|
Varicode
|
128
|
4
|
Start
|
Low
|
297
|
Deutscher Amateur-Radio-Club
|
125
|
4
|
Stub
|
High
|
298
|
OSCAR 40
|
123
|
4
|
Start
|
Low
|
299
|
Wireless Institute of Australia
|
118
|
3
|
Start
|
Mid
|
300
|
Amateur Radio Lighthouse Society
|
118
|
3
|
Stub
|
Low
|
301
|
Practical Wireless
|
117
|
3
|
Stub
|
Low
|
302
|
World Radiosport Team Championship
|
117
|
3
|
Start
|
Mid
|
303
|
Q codes
|
116
|
3
|
NA
|
NA
|
304
|
Soviet–Canadian 1988 Polar Bridge Expedition
|
116
|
3
|
Start
|
Low
|
305
|
Jamboree on the Air
|
113
|
3
|
Stub
|
Mid
|
306
|
Kuwait Amateur Radio Society
|
111
|
3
|
Stub
|
Mid
|
307
|
Beardslee Telegraph
|
109
|
3
|
Start
|
Low
|
308
|
Submillimeter amateur radio
|
109
|
3
|
C
|
Low
|
309
|
75A-4 and KWS-1
|
107
|
3
|
Unknown
|
Unknown
|
310
|
AMSAT-OSCAR 51
|
105
|
3
|
Start
|
Low
|
311
|
Wireless Ship Act of 1910
|
105
|
3
|
Stub
|
Low
|
312
|
Airplane scatter
|
101
|
3
|
Start
|
Mid
|
313
|
Shuttle Amateur Radio Experiment
|
99
|
3
|
Start
|
Mid
|
314
|
Unión de Radioaficionados Españoles
|
99
|
3
|
Stub
|
High
|
315
|
Single operator two radios
|
96
|
3
|
Start
|
Low
|
316
|
Rohn Industries
|
93
|
3
|
Stub
|
Low
|
317
|
BS7H Scarborough Reef DXpedition
|
93
|
3
|
Start
|
Mid
|
318
|
War Emergency Radio Service
|
92
|
3
|
Stub
|
Low
|
319
|
UoSAT-1
|
92
|
3
|
Stub
|
Low
|
320
|
UoSAT-12
|
91
|
3
|
Stub
|
Low
|
321
|
Title 47 CFR Part 97
|
90
|
3
|
Start
|
Mid
|
322
|
Organisasi Amatir Radio Indonesia
|
90
|
3
|
Stub
|
Mid
|
323
|
Philippine Amateur Radio Association
|
89
|
2
|
Stub
|
Mid
|
324
|
Signal/One
|
88
|
2
|
Stub
|
Low
|
325
|
Marshall D. Moran
|
88
|
2
|
Start
|
Mid
|
326
|
Israel Amateur Radio Club
|
87
|
2
|
Stub
|
Mid
|
327
|
Young Ladies Radio League
|
85
|
2
|
Start
|
Low
|
328
|
CQ ham radio
|
85
|
2
|
Stub
|
Low
|
329
|
ICOM IC-905
|
85
|
2
|
Stub
|
Unknown
|
330
|
Vanity call sign
|
84
|
2
|
NA
|
Low
|
331
|
Portable operation (amateur radio)
|
84
|
2
|
Stub
|
Mid
|
332
|
List of DX-peditions
|
83
|
2
|
List
|
Mid
|
333
|
Frequency plan
|
81
|
2
|
NA
|
Mid
|
334
|
Winmor
|
80
|
2
|
Start
|
Low
|
335
|
Fox-1D
|
80
|
2
|
Start
|
Low
|
336
|
KP6PA Palmyra Atoll DXpedition
|
80
|
2
|
Stub
|
Low
|
337
|
Fox-1Cliff
|
79
|
2
|
Start
|
Low
|
338
|
Tucson Amateur Packet Radio
|
78
|
2
|
Stub
|
Low
|
339
|
FBB (software)
|
78
|
2
|
Stub
|
Low
|
340
|
RFinder
|
75
|
2
|
Start
|
Low
|
341
|
Winradio
|
74
|
2
|
Stub
|
Low
|
342
|
UoSAT-2
|
73
|
2
|
Start
|
Low
|
343
|
RadCom
|
73
|
2
|
Stub
|
Low
|
344
|
Canwarn
|
73
|
2
|
Stub
|
Low
|
345
|
WorldRadio
|
72
|
2
|
Stub
|
Low
|
346
|
K.W. Electronics
|
72
|
2
|
Unknown
|
Unknown
|
347
|
$50SAT
|
72
|
2
|
Start
|
Low
|
348
|
Call signs in Argentina
|
71
|
2
|
Start
|
Low
|
349
|
Amateur radio licensing in Australia
|
71
|
2
|
Start
|
Mid
|
350
|
Call signs in South America
|
71
|
2
|
Start
|
Low
|
351
|
BLUEsat UNSW
|
70
|
2
|
Stub
|
Low
|
352
|
Call signs in Oceania
|
69
|
2
|
Start
|
Low
|
353
|
QRB
|
68
|
2
|
Disambig
|
NA
|
354
|
Electronics Illustrated
|
68
|
2
|
Start
|
Low
|
355
|
Amateur radio bands
|
68
|
2
|
NA
|
High
|
356
|
Hamfest India
|
68
|
2
|
Stub
|
Low
|
357
|
Radio Amateur Society of Thailand
|
68
|
2
|
Start
|
High
|
358
|
Worked All Continents
|
66
|
2
|
NA
|
Low
|
359
|
Amateur Radio Society of India
|
66
|
2
|
Start
|
Mid
|
360
|
Associazione Radioamatori Italiani
|
66
|
2
|
Stub
|
Mid
|
361
|
Fox Oring
|
65
|
2
|
Start
|
Low
|
362
|
Heys Collection
|
65
|
2
|
Stub
|
Low
|
363
|
HamSCI
|
65
|
2
|
Stub
|
Low
|
364
|
Fox-1A
|
64
|
2
|
Start
|
Low
|
365
|
Starshine 3
|
64
|
2
|
Start
|
Low
|
366
|
Balloon Experiments with Amateur Radio
|
63
|
2
|
Start
|
Low
|
367
|
CLOVER2000
|
62
|
2
|
Stub
|
Low
|
368
|
Polski Związek Krótkofalowców
|
60
|
2
|
Stub
|
High
|
369
|
Radio Amateur Association of Greece
|
60
|
2
|
Start
|
Low
|
370
|
Remote base station
|
58
|
1
|
Stub
|
Low
|
371
|
Turbo Dispatch
|
58
|
1
|
Start
|
Low
|
372
|
Relay league
|
57
|
1
|
Stub
|
Low
|
373
|
KiwiSAT
|
57
|
1
|
NA
|
NA
|
374
|
Worked All Zones
|
57
|
1
|
NA
|
Low
|
375
|
FO0XB Clipperton Island DXpedition
|
57
|
1
|
Stub
|
Low
|
376
|
Amateur Radio Emergency Communications
|
56
|
1
|
Start
|
Low
|
377
|
Norsk Radio Relæ Liga
|
56
|
1
|
Start
|
Mid
|
378
|
Qatar Amateur Radio Society
|
56
|
1
|
Stub
|
Mid
|
379
|
Summits on the Air
|
55
|
1
|
NA
|
Low
|
380
|
Korean Amateur Radio League
|
55
|
1
|
Stub
|
Mid
|
381
|
British DX Club
|
53
|
1
|
Start
|
Low
|
382
|
National Contest Journal
|
53
|
1
|
Start
|
Low
|
383
|
Chinese Radio Sports Association
|
53
|
1
|
Stub
|
High
|
384
|
Swedish Society of Radio Amateurs
|
53
|
1
|
Stub
|
High
|
385
|
Radio Orienteering in a Compact Area
|
52
|
1
|
Stub
|
Low
|
386
|
Ukrainian Amateur Radio League
|
52
|
1
|
Stub
|
High
|
387
|
Funkamateur
|
52
|
1
|
Stub
|
Low
|
388
|
World Radio Laboratories
|
51
|
1
|
Stub
|
Low
|
389
|
K9YA Telegraph
|
50
|
1
|
Stub
|
Low
|
390
|
Amateur auxiliary
|
49
|
1
|
Start
|
Low
|
391
|
OZ7IGY
|
49
|
1
|
Stub
|
Low
|
392
|
Experimenterende Danske Radioamatører
|
48
|
1
|
Stub
|
Mid
|
393
|
Magnetic loop
|
47
|
1
|
NA
|
Mid
|
394
|
Contest logging software
|
47
|
1
|
Start
|
Low
|
395
|
Suomen Radioamatööriliitto
|
47
|
1
|
Stub
|
High
|
396
|
Radio Club de Chile
|
47
|
1
|
Stub
|
Mid
|
397
|
Radio Club Peruano
|
47
|
1
|
Stub
|
Mid
|
398
|
Q15X25
|
46
|
1
|
Stub
|
Low
|
399
|
CQ VHF Magazine
|
46
|
1
|
Stub
|
Low
|
400
|
Liga Colombiana de Radioaficionados
|
45
|
1
|
Stub
|
Mid
|
401
|
Spartan Packet Radio Experiment
|
45
|
1
|
Stub
|
Low
|
402
|
CUTE-1.7 + APD
|
44
|
1
|
Stub
|
Low
|
403
|
PANSAT
|
44
|
1
|
Start
|
Low
|
404
|
Réseau des Émetteurs Français
|
43
|
1
|
Stub
|
High
|
405
|
Ella Cheever Thayer
|
43
|
1
|
Start
|
Low
|
406
|
PSAT-2
|
43
|
1
|
Stub
|
Low
|
407
|
First Class CW Operators' Club
|
42
|
1
|
Stub
|
Low
|
408
|
Five Nine
|
42
|
1
|
Stub
|
Low
|
409
|
Radio Club Argentino
|
42
|
1
|
Stub
|
High
|
410
|
Federația Română de Radioamatorism
|
42
|
1
|
Start
|
High
|
411
|
Kenwood TS-2000
|
41
|
1
|
NA
|
Low
|
412
|
Old Man (magazine)
|
41
|
1
|
Stub
|
Low
|
413
|
Bulgarian Federation of Radio Amateurs
|
39
|
1
|
Stub
|
Mid
|
414
|
Amateur Station Operator's Certificate
|
38
|
1
|
NA
|
Mid
|
415
|
Association Royale des Radio Amateurs du Maroc
|
37
|
1
|
Stub
|
Mid
|
416
|
Quarter Century Wireless Association
|
36
|
1
|
Stub
|
Low
|
417
|
New Zealand Association of Radio Transmitters
|
35
|
1
|
Start
|
Mid
|
418
|
International Amateur Radio Club
|
35
|
1
|
Stub
|
Low
|
419
|
Irish Radio Transmitters Society
|
35
|
1
|
Start
|
High
|
420
|
Chinese Taipei Amateur Radio League
|
35
|
1
|
Stub
|
Low
|
421
|
Croatian Amateur Radio Association
|
35
|
1
|
Stub
|
Mid
|
422
|
Federacion de Radioaficionados de Cuba
|
35
|
1
|
Stub
|
Mid
|
423
|
Call signs in Barbados
|
35
|
1
|
Start
|
Low
|
424
|
Malaysian Amateur Radio Transmitters' Society
|
34
|
1
|
Stub
|
High
|
425
|
Asocijacija radioamatera u Bosni i Hercegovini
|
34
|
1
|
Stub
|
Mid
|
426
|
Special event station
|
34
|
1
|
Start
|
Low
|
427
|
BRICSat-2
|
34
|
1
|
Start
|
Low
|
428
|
British Amateur Television Club
|
33
|
1
|
Stub
|
Low
|
429
|
Belarusian Federation of Radioamateurs and Radiosportsmen
|
33
|
1
|
Stub
|
Mid
|
430
|
EQSO
|
32
|
1
|
NA
|
NA
|
431
|
Tampere Convention
|
32
|
1
|
Start
|
Low
|
432
|
Federacion Mexicana de Radio Experimentadores
|
32
|
1
|
Stub
|
High
|
433
|
Association of Radio Amateurs of Slovenia
|
32
|
1
|
Stub
|
Mid
|
434
|
Swedish Voluntary Radio Organization
|
32
|
1
|
Stub
|
Low
|
435
|
Royal Naval Amateur Radio Society
|
31
|
1
|
Stub
|
Low
|
436
|
Mumbai Amateur Radio Society
|
31
|
1
|
Start
|
Low
|
437
|
Liga de Amadores Brasileiros de Rádio Emissão
|
31
|
1
|
Stub
|
High
|
438
|
Pakistan Amateur Radio Society
|
31
|
1
|
Stub
|
Mid
|
439
|
Mbanna Kantako
|
30
|
1
|
Start
|
Low
|
440
|
The Canadian Amateur
|
30
|
1
|
Stub
|
Low
|
441
|
Guides on the Air
|
29
|
0
|
Stub
|
Low
|
442
|
Union of Swiss Short Wave Amateurs
|
29
|
0
|
Stub
|
High
|
443
|
Hong Kong Amateur Radio Transmitting Society
|
29
|
0
|
Stub
|
High
|
444
|
Rede dos Emissores Portugueses
|
29
|
0
|
Stub
|
Mid
|
445
|
Slovenský Zväz Rádioamatérov
|
29
|
0
|
Stub
|
High
|
446
|
Savez Radio-Amatera Srbije
|
29
|
0
|
Stub
|
Mid
|
447
|
Parallel Logic Radio Interface
|
27
|
0
|
Start
|
Low
|
448
|
Amateur radio call signs of the United Kingdom
|
27
|
0
|
NA
|
Low
|
449
|
Royal Union of Belgian Radio Amateurs
|
26
|
0
|
Stub
|
Mid
|
450
|
Radio Club Paraguayo
|
26
|
0
|
Stub
|
Mid
|
451
|
SEDSAT-1
|
26
|
0
|
Start
|
Low
|
452
|
Friendship Radiosport Games
|
25
|
0
|
Start
|
Low
|
453
|
Singapore Amateur Radio Transmitting Society
|
25
|
0
|
Stub
|
High
|
454
|
Mongolian Radio Sport Federation
|
25
|
0
|
Stub
|
Mid
|
455
|
Club de Radioexperimentadores de Nicaragua
|
25
|
0
|
Stub
|
Mid
|
456
|
Syrian Scientific Technical Amateur Radio Society
|
25
|
0
|
Stub
|
Mid
|
457
|
CQ DL
|
25
|
0
|
Stub
|
Low
|
458
|
RIGblaster Nomic
|
24
|
0
|
Stub
|
Low
|
459
|
Volunteer Examiner Coordinator
|
24
|
0
|
Stub
|
Low
|
460
|
Macau Amateur Radio Society
|
24
|
0
|
Stub
|
High
|
461
|
UoSAT-3
|
24
|
0
|
Stub
|
Low
|
462
|
Leslie R. Mitchell
|
24
|
0
|
C
|
Low
|
463
|
3Y5X Bouvet Island DXpedition
|
24
|
0
|
Stub
|
Mid
|
464
|
Global Amateur Radio Emergency Communications Conference
|
23
|
0
|
Stub
|
Low
|
465
|
Mongolian Amateur Radio Society
|
23
|
0
|
Stub
|
Mid
|
466
|
Latvijas Radio Amatieru Līga
|
23
|
0
|
Stub
|
Mid
|
467
|
Radio Club de Costa Rica
|
23
|
0
|
Stub
|
Mid
|
468
|
Amateurs Radio Algeriens
|
23
|
0
|
Stub
|
Mid
|
469
|
Amateur Radio Association of Bahrain
|
23
|
0
|
Stub
|
Mid
|
470
|
Contesting controversies
|
22
|
0
|
Start
|
Low
|
471
|
Emirates Amateur Radio Society
|
22
|
0
|
Stub
|
Mid
|
472
|
Estonian Radio Amateurs' Union
|
21
|
0
|
Stub
|
Mid
|
473
|
Asociația Radioamatorilor din Moldova
|
21
|
0
|
Stub
|
Mid
|
474
|
Íslenskir Radíóamatörar
|
21
|
0
|
Stub
|
Mid
|
475
|
Kazakhstan Federation of Radiosport and Radio Amateur
|
21
|
0
|
Stub
|
Mid
|
476
|
Worked All States
|
20
|
0
|
NA
|
Low
|
477
|
List of HSMM nodes
|
20
|
0
|
List
|
Low
|
478
|
Iraqi Amateur Radio Society
|
20
|
0
|
Stub
|
Mid
|
479
|
Weber-OSCAR 18
|
20
|
0
|
Start
|
Low
|
480
|
Q signal
|
19
|
0
|
NA
|
NA
|
481
|
National Institute of Amateur Radio
|
19
|
0
|
Stub
|
Low
|
482
|
Club de Radioaficionados de Guatemala
|
19
|
0
|
Stub
|
Mid
|
483
|
Club de Radio Aficionados de El Salvador
|
19
|
0
|
Stub
|
Mid
|
484
|
Unió de Radioaficionats Andorrans
|
19
|
0
|
Stub
|
Mid
|
485
|
Orbiting Picosat Automatic Launcher
|
19
|
0
|
Start
|
Low
|
486
|
Skip (radio)
|
18
|
0
|
NA
|
Low
|
487
|
Österreichischer Versuchssenderverband
|
18
|
0
|
Stub
|
High
|
488
|
Radio Club Venezolano
|
18
|
0
|
Stub
|
Mid
|
489
|
Bangladesh Amateur Radio League
|
18
|
0
|
Stub
|
Mid
|
490
|
Aruba Amateur Radio Club
|
18
|
0
|
Stub
|
Mid
|
491
|
Len Jarrett
|
18
|
0
|
Start
|
Low
|
492
|
UoSAT-5
|
18
|
0
|
Stub
|
Low
|
493
|
Texas DX Society
|
17
|
0
|
Start
|
Low
|
494
|
Indian Wireless Telegraph (Amateur Service) Rules, 1978
|
17
|
0
|
Stub
|
Mid
|
495
|
Liga Panameña de Radioaficionados
|
17
|
0
|
Stub
|
Mid
|
496
|
Dalton Pritchard
|
17
|
0
|
Start
|
Low
|
497
|
Ak-Sar-Ben Amateur Radio Club
|
17
|
0
|
Start
|
Low
|
498
|
Radar Fence Transponder
|
17
|
0
|
Start
|
Low
|
499
|
Mauritius Amateur Radio Society
|
16
|
0
|
Stub
|
Mid
|
500
|
Amateur radio call signs of Antarctica
|
16
|
0
|
NA
|
Low
|
501
|
South Jersey Radio Association
|
15
|
0
|
Start
|
Low
|
502
|
Malta Amateur Radio League
|
15
|
0
|
Start
|
Mid
|
503
|
JNA Wireless Association
|
15
|
0
|
Start
|
Low
|
504
|
Radioamaterski Sojuz na Makedonija
|
15
|
0
|
Stub
|
Mid
|
505
|
ARRL International Humanitarian Award
|
15
|
0
|
Stub
|
Mid
|
506
|
UoSAT-4
|
15
|
0
|
Stub
|
Low
|
507
|
Simulated Emergency Test
|
14
|
0
|
Stub
|
Low
|
508
|
Islands on the air
|
14
|
0
|
NA
|
Low
|
509
|
Qrc
|
13
|
0
|
Disambig
|
NA
|
510
|
VHF/UHF Century Club
|
12
|
0
|
NA
|
Low
|
511
|
Radio Club Uruguayo
|
12
|
0
|
Stub
|
Mid
|
512
|
LI2B
|
10
|
0
|
NA
|
Low
|
513
|
Turkish Amateur Radio Association
|
10
|
0
|
NA
|
NA
|
514
|
Réseau Luxembourgeois des Amateurs d'Ondes Courtes
|
10
|
0
|
Stub
|
High
|
515
|
Radio Society of Sri Lanka
|
10
|
0
|
Stub
|
Mid
|
516
|
Lesotho Amateur Radio Society
|
10
|
0
|
Stub
|
Mid
|
517
|
QRO
|
9
|
0
|
NA
|
NA
|
518
|
Telsiz ve Radyo Amatörleri Cemiyeti
|
9
|
0
|
NA
|
Mid
|
519
|
Contesting technology
|
8
|
0
|
Start
|
Low
|
520
|
Official Observer
|
8
|
0
|
NA
|
NA
|
521
|
Radio Club de Honduras
|
8
|
0
|
Stub
|
Mid
|
522
|
Northwest Amateur Radio Society
|
8
|
0
|
Start
|
Low
|
523
|
Radio ZS
|
7
|
0
|
NA
|
Low
|
524
|
QRZ
|
7
|
0
|
NA
|
NA
|
525
|
Qra
|
7
|
0
|
NA
|
NA
|
526
|
Associacao de Radioamadores da Linha de Cascais
|
7
|
0
|
Start
|
Low
|
527
|
Kenwood TS-820S
|
7
|
0
|
NA
|
Low
|
528
|
Wireless Institute of Queensland
|
7
|
0
|
Start
|
Low
|
529
|
Qro
|
6
|
0
|
NA
|
NA
|
530
|
PCSat2
|
6
|
0
|
Stub
|
Low
|
531
|
SK7MQ
|
6
|
0
|
Stub
|
Low
|
532
|
Nordic Radio Amateur Union
|
6
|
0
|
Stub
|
Low
|
533
|
Manly-Warringah Radio Society
|
5
|
0
|
Start
|
Mid
|
534
|
Q signals
|
4
|
0
|
NA
|
NA
|
535
|
Official Observer Coordinator
|
4
|
0
|
NA
|
Low
|
536
|
Hy-Gain Antennas and Rotators
|
4
|
0
|
NA
|
Low
|
537
|
Amateur radio call signs of Oceania
|
3
|
0
|
NA
|
Low
|
538
|
Replexer
|
2
|
0
|
NA
|
Mid
|
539
|
Section emergency coordinator
|
2
|
0
|
NA
|
Low
|
540
|
Section traffic manager
|
2
|
0
|
NA
|
Low
|
541
|
Yaesu FT-221
|
2
|
0
|
NA
|
Low
|
542
|
Ham net
|
2
|
0
|
NA
|
NA
|
543
|
Amateur radio call signs of Ireland
|
2
|
0
|
NA
|
Low
|
544
|
Amateur radio call signs of Africa
|
2
|
0
|
NA
|
NA
|
545
|
2200m band
|
2
|
0
|
NA
|
NA
|
546
|
Q-signal
|
1
|
0
|
NA
|
NA
|
547
|
Antenna height above average terrain
|
0
|
0
|
NA
|
Low
|
548
|
Q Codes
|
0
|
0
|
NA
|
NA
|
549
|
Q Code
|
0
|
0
|
NA
|
NA
|
550
|
QRN
|
0
|
0
|
NA
|
NA
|
551
|
QNB (amateur radio)
|
0
|
0
|
NA
|
NA
|
552
|
QNB:Amateur Radio
|
0
|
0
|
NA
|
NA
|
553
|
Call signs in Pakistan
|
0
|
0
|
NA
|
Low
|
554
|
LX National QSL Bureau
|
0
|
0
|
Stub
|
Low
|
555
|
Call signs in South Africa
|
0
|
0
|
NA
|
NA
|
556
|
Call signs in Ireland
|
0
|
0
|
NA
|
Low
|