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	74895	-
100	9279	-
200	3343	-
300	1386	-
400	776	-
500	430	-
600	262	-
700	168	-
800	126	-
900	99	-
1000	53	-
1100	41	-
1200	36	-
1300	23	KB4JR DK2FE YV5DRN YL2AG IZ5BBS SV2BBK LY2PX HB9AW EA3IAZ UX5UW PA4ARP UR5BIZ W0ECS VU2GSM JA1NUT KA4KSB DL6UKW PV8ADI N4KS YR100R EA8AF UN7NFD IZ4GSC
1400	15	G0GKH OK2RZ GW4OKT S57V SM5COP E77EA S01WS DJ6UX JA6HHI EB4IC AA3B WB7PMP JA6GCE AK4JA F5UQE W6PU
1500	16	TA1PB G4LNA K4IBZ DL7RKK W8KJP WD8MHT NA5G JH7IXX W5ZO M6MPC OK1IF G4ZXN VE7EDT VE3BXG EU8F G0GKH
1600	7	LZ1QI F5NZY DL2IAD JH5UVK VE2PID W9ZN CO8LY
1700	3	K3WW F4GFT DL3NAA
1800	7	F1DFF DL5YAD ZA1EM OH6NPV YL3CW N4QA IZ2QXG
1900	4	EW1CY W4MQC IZ3SOI KP4TF
2100	3	LA1MFA DK8IT WR5U
2200	4	W7D YO4VM RU3X N5PHT
2300	2	F6HKA KW7D
2400	2	DK1WI OV1CDX
2500	2	DK4AN ON4ADI
2600	1	JF6DMT
2700	1	SQ6JAN
2800	1	F5IN
2900	2	OK1LW HB9DAX
3000	1	EI3KM

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: 6372770 from 90988 individual calls.

In order to fulfil the rule, 80% of 6372770 hours (= 5098216h) would have to be produced by 20% of 90988 stations (= 18198).

As of today, those 20% generated 2210682 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...)