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+	78351	-
100+	9397	-
200+	3470	-
300+	1356	-
400+	704	-
500+	439	-
600+	259	-
700+	180	-
800+	113	-
900+	85	-
1000+	54	-
1100+	38	-
1200+	27	DK2FE DL5FCZ JA6GCE JA6HHI UR3QX UX5UW EA6NB SM6PDS HK7AAG DL5YM RK3ER KB1CL PV8ADI UN7LDR N4OW S57V Z31JY HL2BM HB9AW DB25ONN W6JL LZ7DL IZ4GSC YL2AG K1PUG K6AAQ K1RAQ G4SMN K0GUV
1300+	33	SV2BBK OK1HB DL5UZ WB7UBC LZ1QI SM5IMO W4CI DL5ANT W9IK RK4CT LY2PX CO8LY G4RMV NM1I KD8ZM W8KJP DG4BZ F6IJU W7AIT SM5COP W9ZN DJ6UX G4LNA US5XD N0NBD JH1MDJ N3QE N4QR N6IET EU8F OZ4UN DK2FE DL5FCZ
1400+	21	ZA1EM DL2IAD OK1IF RX6KR/B VE7EDT EW1CY YU7QF IZ5BBS EA3KU DL7RKK 4Z5FW G0GKH AA3B K5LN UN7NFD SM3AVQ K4IBZ PA4ARP KB4JR N4KS F6HK
1500+	7	JH5UVK IU0JFZ AA4MC UR5BIZ K7FD OH6NPV A4MC
1600+	10	IZ2QXG M6MPC F5NZY W6PU DM2DZM YL3CW UT5NR EB4IC VE2PID G4ZXN
1700+	4	K5LY NA5G K3WW TA1PB
1800+	2	N5PHT DO1EK
1900+	7	IZ3SOI EI3KM DL3NAA W5ZO W4MQC W7D VE3BXG
2000+	3	YR100R SP9WZJ JF6DMT
2100+	3	F4GFT YO4VM KW7D
2200+	3	LA1MFA KP4TF G4PVM
2300+	3	DK5JPL F6HKA RU3X
2400+	2	DK8IT GW4OKT
2500+	2	ON4ADI DK1WI
2600+	2	F5IN DK4AN
2800+	1	SQ6JAN
2900+	1	HB9DAX
3000+	1	VE3NFN
3100+	1	DL5YAD
3400+	1	OV1CDX
3500+	1	OK1LW
4000+	1	DM0E
4200+	2	DK0MV DM2A
4300+	1	OK2RZ
4500+	1	WR5U
4700+	1	DL6UKW

Unique active calls: 94587. 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: 6497513 from 94587 individual calls.

In order to fulfil the rule, 80% of 6497513 hours (= 5198010h) would have to be produced by 20% of 94587 stations (= 18917).

As of today, those 20% generated 2256264 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...)