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
0	58714	-
100	7469	-
200	2790	-
300	1261	-
400	715	-
500	412	-
600	245	-
700	164	-
800	117	-
900	103	-
1000	66	-
1100	45	-
1200	34	-
1300	23	AA3B DJ6UX JA6GCE RU3ZL PI7SIX LU4AT VK3MI OE3XAC LZ1AEY DK8IT WB6ZFG OK1IF DJ6IH DR25MDK F5OHM RA9LL RK3ER W1AW F6FAI M6MPC UA3KW EB4IC IZ4GSC
1400	17	E72MD HC2AO NM1I SM5COP PA4ARP DL7RYA OM3DM NA5G K4IBZ T2DE OK1LW EA8AF G4ZXN DK2FE LA5TEN F5UQE R3PR
1500	13	S01WS EU8F IT9ACJ PV8ADI 9J2BO JA1NUT G0GKH S57V KA4KSB W8KJP EA9HU N7HRK/M OK1HAS
1600	9	JH5UVK K5EDM DL7RKK DF4XX OK2RRR YL3CW IZ2QXG N9RVW E77EA
1700	8	YL2AG W5ZO JA6HHI ON0RY 4S7B OH6NPV KP4TF OZ1HDF
1800	9	LA1MFA G4LNA ON0SIX TA1PB VE2PID WD8MHT DK1WI E51DWC W9ZN
1900	4	IZ3SOI DL2IAD JF6DMT YO4NF
2000	4	SQ6JAN YO4VM W4MQC F6HKA
2200	3	N4QA W7D EW1CY
2300	3	N5PHT F1DFF ON4ADI
2400	1	KW7D
2700	1	DK4AN
2800	1	F5IN
2900	1	HB9DAX

Note that beacons and frequently "busted" callsigns like T2DE were not included here.

How many hams generate how much activity?

Does the 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: 5409449 from 72232 individual calls.

In order to fulfil the rule, 80% of 5409449 hours (= 4327559h) would have to be produced by 20% of 72232 stations (= 14446).

As of today, those 20% generated 1825190 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...)