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+	70650	-
100+	7859	-
200+	2699	-
300+	1407	-
400+	770	-
500+	475	-
600+	308	-
700+	215	-
800+	142	-
900+	97	-
1000+	67	-
1100+	68	-
1200+	39	-
1300+	25	LA8IG SA6AUT AI0Y N5QLZ SM5COP WB6ZFG DL2DX F4GOU VE4GH PC8X RX6MY IT9QAU K0CDJ N1MX F5RIJ JA0IKP DL2HS UA6WW GI3TME LZ2P IK3VUT R0LW KE0UI TJ3T OZ2A
1400+	21	F5MAI NN0D K3MM KA1FXK LA1MFA LZ3QE WA8VTD G4PVM IU0BNG JM7OLW W7SW WX7V JH5UVK WB0RLJ SQ6JAN DJ8CZ JL1TQV NR4A CT1ZQ VU2TMP VK2GR
1500+	13	UN7NFD W8BJO W0WF IZ3SOI VE3OZO KG5SSB LZ7DL M6MPC LZ3AN VE6SYC SM2BLY DF2IC K2KRG
1600+	14	IN3KLQ OK1CF SP3CW W8FJ YL3AJT N9QU VK5GG UX0DA XV9G G0GKH HA6NL W4MQC DL2SJA KO5Q
1700+	9	EA3CC WB0B VU2SRT JS1DEH DK1WI VK2ARZ JQ3GIP K5LY LZ2PP
1800+	4	IK6JFF YO9KWC OS5Z IW9HKM
1900+	12	DF6YT EA4GWG W7AEH DL2SWK KI4DEF JK1VRF YT3T JA8TWF/1 IK5VLL G4HOM OY1CT WS1L
2000+	7	AI4UH EE5EE HB9DAX SM6OID JJ0TJS W4CI DK7AK
2100+	6	K4UX F5PLC LY2PX EA6EJ JA1IAZ DF9II
2200+	2	JF6DMT CT1BMW
2300+	3	PA5XM WB4AEG KY4GS
2400+	4	IZ5BBS DM2DZM DL3EL DJ6AU
2500+	1	YB1JCD
2800+	2	K5VR OV1CDX
2900+	1	DK8IT
3000+	2	DK9PY F5IN
3100+	3	VU2JCD W1AW SM5IMO
3200+	2	JA1GZV EA1EYL
3300+	1	DK4AN
3800+	2	YO9CMC JR6JGB
3900+	3	DL8NBM JR3OYH PY2UDB
4100+	1	DL5YAD GW4OKT
4200+	1	DL5YAD
4300+	3	DM5EA IU0HMB OK1LW
4400+	2	G5VZ VE3NFN
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: 84952. 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: 6188566 from 84952 individual calls.

In order to fulfil the rule, 80% of 6188566 hours (= 4950853h) would have to be produced by 20% of 84952 stations (= 16990).

As of today, those 20% generated 1975023 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...)