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+	70688	-
100+	7855	-
200+	2716	-
300+	1406	-
400+	768	-
500+	481	-
600+	310	-
700+	211	-
800+	140	-
900+	98	-
1000+	69	-
1100+	68	-
1200+	39	-
1300+	24	LA8IG WB6ZFG SA6AUT SM5COP AI0Y N5QLZ IT9QAU VE4GH RX6MY DL2DX F4GOU UA6WW PC8X JA0IKP GI3TME K0CDJ N1MX DL2HS F5RIJ IK3VUT LZ2P TJ3T R0LW KE0UI
1400+	21	K2KRG KA1FXK F5MAI NN0D K3MM G4PVM LA1MFA LZ3QE WA8VTD JL1TQV JM7OLW WX7V W7SW WB0RLJ SQ6JAN IU0BNG DJ8CZ JH5UVK NR4A VU2TMP CT1ZQ VK2GR
1500+	13	UN7NFD W0WF W8BJO IZ3SOI VE3OZO VE6SYC KG5SSB LZ7DL DF2IC LZ3AN M6MPC SM2BLY K2KRG
1600+	14	IN3KLQ OK1CF N9QU SP3CW W8FJ XV9G VK5GG YL3AJT G0GKH UX0DA HA6NL KO5Q W4MQC DL2SJA
1700+	9	VU2SRT JS1DEH EA3CC DK1WI WB0B JQ3GIP VK2ARZ K5LY LZ2PP
1800+	1	OS5Z IW9HKM
1900+	16	DK7AK DF6YT JK1VRF W7AEH DL2SWK EA4GWG JA8TWF/1 IK5VLL KI4DEF YT3T WS1L YO9KWC G4HOM OY1CT IK6JFF OS5Z
2000+	7	AI4UH DF9II EE5EE HB9DAX SM6OID JJ0TJS W4CI
2100+	5	K4UX LY2PX F5PLC EA6EJ JA1IAZ
2200+	2	JF6DMT CT1BMW
2300+	3	WB4AEG PA5XM KY4GS
2400+	4	IZ5BBS DM2DZM DL3EL DJ6AU
2600+	1	YB1JCD
2800+	2	OV1CDX K5VR
2900+	1	DK8IT
3000+	2	DK9PY F5IN
3100+	3	VU2JCD SM5IMO W1AW
3200+	2	JA1GZV EA1EYL
3300+	1	DK4AN
3800+	3	YO9CMC PY2UDB JR6JGB
3900+	1	JR3OYH
4000+	1	DL8NBM
4100+	2	DL5YAD GW4OKT
4300+	2	DM5EA IU0HMB
4400+	3	G5VZ VE3NFN OK1LW
4600+	1	DJ6ZM
5200+	1	ON7PQ
5500+	1	DK5JPL
5600+	1	DF2JP
6100+	1	KA2QPG
6200+	1	W5BIB
6500+	1	M0LRQ
6700+	1	DK1VD
6900+	1	JH6LDY
8100+	1	WR5U
8300+	1	YO4GOU
8600+	1	YO4BEX

Unique active calls: 85004. 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: 6198474 from 85004 individual calls.

In order to fulfil the rule, 80% of 6198474 hours (= 4958779h) would have to be produced by 20% of 85004 stations (= 17001).

As of today, those 20% generated 1979003 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...)