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+	76732	-
100+	9320	-
200+	3443	-
300+	1335	-
400+	731	-
500+	424	-
600+	251	-
700+	171	-
800+	119	-
900+	85	-
1000+	49	-
1100+	39	-
1200+	31	W9IK W4CI SM3AVQ PV8ADI EA6NB Z31JY N3QE DM2DZM N6IET LZ7DL LA8IG RK3ER F6IJU OK1HB UA3KW K5LN OH1FJ E77EA N0NBD JH1MDJ JH7IXX UN7LDR VU2GSM NM1I W6JL YL2AG HB9CCL HL2BM IZ4GSC K2OO PE3RKE S57V
1300+	28	DJ6UX DO1EK N4KS AA4MC HB9AW K7FD TA1PB 4Z5FW OZ4UN AA3B K0GUV DK2FE JA6HHI K5LY A4MC EA3KU S01WS PA4ARP JA6GCE KD8ZM DL5FCZ AK4JA F5UQE KA1FSX DL5ANT G7EOB N4QR W9IK
1400+	15	W8KJP KB4JR W9ZN UX5UW G4LNA UN7NFD UR5BIZ N4QA DL2IAD G0GKH SV2BBK LY2PX G4SMN SM5COP EU8F
1500+	10	F5NZY DL7RKK CO8LY ZA1EM F1DFF EB4IC EW1CY K4IBZ IZ5BBS OK1IF
1600+	7	YR100R M6MPC NA5G VE7EDT JH5UVK LZ1QI W6PU
1700+	8	YL3CW DK5JPL DL3NAA IZ2QXG VE2PID G4PVM G4ZXN K3WW
1800+	2	W5ZO SP9WZJ
1900+	3	KP4TF IZ3SOI OH6NPV
2000+	4	YO4VM GW4OKT W4MQC VE3BXG N5PHT
2100+	5	VE3NFN LA1MFA W7D F4GFT YO4VM
2200+	3	JF6DMT RU3X KW7D
2300+	1	F6HKA
2400+	3	DK8IT DK4AN EI3KM
2500+	2	DK1WI DM0E
2600+	2	DM2A F5IN
2700+	2	DK0MV DL5YAD
2800+	1	ON4ADI
2900+	2	HB9DAX SQ6JAN
3000+	1	OK2RZ
3200+	1	DL6UKW
3300+	1	OV1CDX
3500+	2	OK1LW WR5U

Unique active calls: 92833. 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: 6397887 from 92833 individual calls.

In order to fulfil the rule, 80% of 6397887 hours (= 5118310h) would have to be produced by 20% of 92833 stations (= 18567).

As of today, those 20% generated 2226948 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...)