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+	77053	-
100+	9357	-
200+	3411	-
300+	1341	-
400+	733	-
500+	413	-
600+	256	-
700+	186	-
800+	114	-
900+	84	-
1000+	53	-
1100+	34	YL2AG UR3QX W1AW N4OW JH7IXX F6HK K1PUG UA3KW N1PVP DF4XX F5SJF I1MMR K1RAQ N4PAL E77EA HK7AAG JH8RJS RM7C KB1CL US5XD G4RMV K7DCG DL5YM JE6GAN N7HRK/M SP1JPM IS0ESG SM7ZDI W6SX AA5KV DL9LM R8CA VA3HP IT9QAU
1200+	36	-
1300+	27	TA1PB SM3AVQ EU8F 4Z5FW DK2FE EA3KU PA4ARP JA6HHI DM2DZM SM5COP AA4MC HB9AW SV2BBK DJ6UX K0GUV OZ4UN W9IK G4SMN W4CI A4MC DL5ANT K5LN N3QE EA6NB KD8ZM N4QR OK1HB
1400+	16	KB4JR DL2IAD UR5BIZ K5LY W9ZN F1DFF W8KJP UN7NFD G0GKH EW1CY LY2PX AA3B G4LNA K7FD N4KS DO1EK
1500+	8	DL7RKK EB4IC LZ1QI CO8LY UX5UW ZA1EM OK1IF K4IBZ IZ5BBS
1600+	8	M6MPC NA5G G4ZXN JH5UVK VE2PID W6PU F5NZY DL7RKK
1700+	5	YR100R IZ2QXG K3WW YL3CW VE7EDT
1800+	5	SP9WZJ G4PVM OH6NPV DL3NAA W5ZO
1900+	3	N5PHT IZ3SOI DK5JPL
2000+	4	VE3BXG F4GFT KP4TF W7D W4MQC
2100+	7	GW4OKT KW7D RU3X JF6DMT YO4VM LA1MFA VE3BXG
2200+	1	EI3KM
2300+	1	F6HKA
2400+	3	DK4AN VE3NFN DK8IT
2500+	1	DK1WI
2600+	1	F5IN
2700+	1	ON4ADI
2800+	1	SQ6JAN
2900+	1	DL5YAD
3000+	2	DM0E HB9DAX
3100+	1	DM2A
3200+	1	DK0MV
3300+	1	OV1CDX
3400+	1	OK2RZ
3600+	2	OK1LW DL6UKW
3800+	1	WR5U

Unique active calls: 93173. 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: 6416869 from 93173 individual calls.

In order to fulfil the rule, 80% of 6416869 hours (= 5133495h) would have to be produced by 20% of 93173 stations (= 18635).

As of today, those 20% generated 2231094 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...)