RBN activity statistics

Charts of RBN activity, active callsigns and (tbd) more stuff. A work in progress.

Histogram: Active hours of individual callsigns (last 365 days)

Active hours	Count	Calls
10+	66209	-
100+	7485	-
200+	2663	-
300+	1349	-
400+	746	-
500+	470	-
600+	278	-
700+	212	-
800+	134	-
900+	75	-
1000+	91	-
1100+	52	-
1200+	43	-
1300+	26	ZA1EM N1GKE PA5XM IK0IXI N5QLZ E77EA DJ5CW W7SW WX7V KB6FPW EA4HKF RM2D HA5AEK EA1FCL RK3ER YL3JD G4DNP OK2BEI F4GOU PY2AAM KW7Q DL7HH F4IGG WB4IT DL1BUG DM2BRF
1400+	23	LZ7DL R0LW IU0BNG GM4ATA UA1CE NN0D NA6JD F5POJ AH6RT IT9QAU SM5COP M6MPC EA2PW N1MX K5GJR EA4GWG HS0EDP LA8IG K5SBR K3MM IW2HTH 9A9RA SQ6JAN
1500+	15	CT1ZQ WB4AEG N0GRA DL2SJA G0GKH VU2TMP RA9LL DF2IC LZ3QE EA6BB W8FJ YL2AG SM2BLY LZ1QI KE0UI
1600+	25	F5RIJ DL2SWK K5LY JQ3GIP KG5SSB DK4RW G4HOM NR4A JM7OLW DL2HS W3NA YO9KWC OK1CF W4MQC IK1WVQ EA7EGU W8BJO VE4GH JS1DEH JH5UVK IW9HKM VK2GR JA8TWF/1 K2KRG LA1MFA DF6YT
1700+	5	DL2HRF W7AEH VU2SRT G0TUE F5RIJ
1800+	7	IZ3SOI CT1BMW KY4GS YL3AJT EE5EE LZ2PP DK1WI
1900+	9	SP3CW VA3VA F5PLC HB9DAX SM6OID VK2ARZ WB0B OY1CT JJ0TJS
2000+	5	W4CI EA6EJ IK6JFF DM5EA DK7WA
2100+	5	KI4DEF IK5VLL K4UX DF9II DM6EE
2200+	2	YB1JCD IZ5BBS
2300+	4	JF6DMT DM2DZM TC100TC DL7VEA
2400+	3	DK7AK JR3OYH LY2PX
2500+	1	VU2JCD
2700+	2	DK8IT WA8VTD
2800+	1	K5VR
2900+	3	DL3EL JJ3KTW GW4OKT
3000+	2	OV1CDX F5IN
3100+	1	DK4AN
3200+	3	EA1EYL W1AW JA1GZV
3300+	2	YO9CMC SM5IMO
3400+	1	OK1LW
3500+	1	DK9PY
3800+	1	DL8NBM
4000+	2	DL5YAD PY2UDB
4400+	2	VE3NFN G5VZ
4500+	1	DF2JP
4600+	1	IU0HMB
4800+	2	DJ6ZM JH6LDY
4900+	1	M0LRQ
5100+	1	DK5JPL
5300+	1	DK1VD
5400+	1	ON7PQ
5900+	1	W5BIB
6500+	1	KA2QPG
7400+	1	YO4GOU
8200+	1	YO4BEX
8700+	1	WR5U

Unique active calls: 79971. Note that beacons and frequently "busted" callsigns like T2DE were not included here.

How many hams generate how much activity?

Does the Pareto principle ('80/20 rule') hold true for RBN spots?

As of today, the total number of activity hours (i.e. hours in which individual callsigns were spotted, with a lower threshold of 10 hours over the last year) registered by the RBN is: 5924308 from 79971 individual calls.

In order to fulfil the rule, 80% of 5924308 hours (= 4739446h) would have to be produced by 20% of 79971 stations (= 15994).

As of today, those 20% generated 1877009 hours of activity... Sorry, Pareto!

(Note: The minimum activity per callsign and year was 10 hours. If this threshold was increased to a more reasonable value, the 80/20 rule may hold true...)