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+	68228	-
100+	7475	-
200+	2713	-
300+	1240	-
400+	724	-
500+	399	-
600+	262	-
700+	185	-
800+	131	-
900+	94	-
1000+	74	-
1100+	41	-
1200+	23	R1NA M5IMO K5ISS T4EI OS5Z W8XW N3TWX HA5AEK WB0RLJ DL2HRF JA0IKP KC8TQP EA1FCL HS0EDP I1GIS DK5LN UG4A LZ1QI IK7FPU W8XAL JS6UHQ/6 ZA1RR K5JJD
1300+	18	HA6NL PA3AAV M0LRQ JA5EWQ SM5COP EA7BEZ WD9DWE SA6AUT ZA1EM PY2AAM IK3/UY7LA IN3KLQ K4MW OK2BEI N4TTU R8MC KB8UGP F5POJ
1400+	20	W4MQC KH6DL CT1BMW AI5IN JJ0TJS AB4I W8FJ IK6JFF IU0BNG PY2XL KC7NBM OE9SBD DL3AZ G0GKH DF9II G3XIZ JS2OVO RX6MY SO9PC F4IGG
1500+	11	DJ4GX SM2ELN K4U VE3OZO LZ2PP W3RJ SP6CW EU4E K4IBZ JN1RKE GW4OKT
1600+	12	NN0D HB9DAX LY2PX W8BJO DM2BRF IT9QAU NE5A JF6DMT SO5CW EA6EJ G4HOM JM7OLW
1700+	6	WS1L SM5HQN IZ5BBS DK1WI EE5EE W4CI
1800+	8	SM6OID IK5VLL M0PKD R1OA BG2TFW IW9HKM G4PVM OK1CF
1900+	6	EA4JI K5VR YO9KWC DK1VD F5IN WP3Y
2000+	8	UR3QX JM1IKW AA7FV UX0DA R3ZBI F8BCU F5PLC LU4JJ
2100+	1	DL3EL
2200+	1	OV1CDX
2300+	3	WX7V DK9PY DK7AK
2400+	3	DJ6ZM DM2DZM VU2JCD
2500+	2	OY1CT OH3GD
2600+	3	DK4AN EA1EYL K4UX
2700+	3	W1AW LZ3AN PY2VA
2800+	3	G5VZ EA3CC WB5N
2900+	3	WZ2J IN3TWX SM5IMO
3000+	1	OK1LW
3100+	3	N9QU WA8VTD KY4GS
3200+	4	CT1GFK PY2UDB DK8IT ON7PQ
3300+	2	PY2XW PA5XM
3700+	1	JA1GZV
3800+	2	IT9JLX CT1EXR
3900+	1	N8TGQ
4000+	1	DM5EA
4100+	1	VE3NFN
4200+	1	JR3OYH
4400+	2	DL5YAD DF6YT
4600+	1	DL6AAF
5300+	2	JR6JGB WB4AEG
5400+	1	YO9CMC
5900+	1	DK5JPL
6100+	2	JH6LDY KA2QPG
7000+	1	DL8NBM
7500+	1	DF2JP
8600+	2	YO4BEX YO4GOU

Unique active calls: 81730. 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: 5802241 from 81730 individual calls.

In order to fulfil the rule, 80% of 5802241 hours (= 4641793h) would have to be produced by 20% of 81730 stations (= 16346).

As of today, those 20% generated 1874730 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...)