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+	42017	-
100+	6706	-
200+	2518	-
300+	1221	-
400+	706	-
500+	407	-
600+	295	-
700+	211	-
800+	108	-
900+	95	-
1000+	72	-
1100+	40	-
1200+	41	-
1300+	18	NA5G RW3WP LZ2UR JH7IXX SP3CW G4LNA DL50NFA RW7F DL2HRF WB6ZFG LZ1QI PB7RS RK3ER WB4AEG 9Z4Y BG6GQE OH9TEN RM2D
1400+	17	4O4T IS0ESG IK0FNH SM7ZDI HA2EOU HA5AEK DK7AK IK0IXI EU8F LY2PX KA6IOM JA3DLE/1 ON7PQ SM2FIJ DL5FCZ N5PHT S58MU
1500+	17	DJ1YFK IK0YVV Z33A OK1HB RU3X SM5COP JH5UVK F8FAZ DK2FE OK2RZ JA7BSF OY1CT IN3GYO F6HK G4ZXN VE3BXG DJ6IH
1600+	17	IZ0XZD S59NS YL3AJT PY1ZB IW9HKM EA8DHV HB9AW IZ2MGN SP9WZJ DL2DX SM6OID DM0R SV2BBK KD8JDC K2KRG IT9QAU KB1CL VE2PID
1700+	9	W4CI IU0JFZ RK4CT JF6DMT Z39M KB4JR EW1CY N4OW IZ0XZD
1800+	12	YO4VM DL2IAD KP4TF N2KW S59N R7NO W4MQC G4PVM G4IWO WB0B UN7NFD V31MA
1900+	7	N4QA HB9CVN LZ2PP DK5CCA US5XD OZ2A G0GKH
2000+	3	DM2DZM F5PLC DD5XX
2100+	4	PA2F LB6GG G4AWW IZ3SOI
2200+	1	YU7QF
2300+	2	DK1WI HB9DAX
2400+	6	DL3NAA W5BIB SM5IMO LZ7DL UT5NR F6HKA
2500+	1	K7NWS
2700+	4	LA1MFA DK8IT F5IN ON4ADI
2800+	3	DK4AN SQ6JAN K4YFH
2900+	1	OV1CDX
3000+	1	W8KR
3100+	1	AE5ZH
3200+	4	OK1LW K5LY SQ6LDP F4GFT
3300+	1	DL5UZ
3900+	3	W5ZO DM2BRF G4RMV
4000+	3	AL7JK GW4OKT IU0HMB
4200+	1	DK5JPL
4300+	1	VE3NFN
4700+	1	DL5YAD
5000+	1	N3HI
6700+	1	DJ6ZM
7700+	1	WR5U

Unique active calls: 54578. 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: 4979685 from 54578 individual calls.

In order to fulfil the rule, 80% of 4979685 hours (= 3983748h) would have to be produced by 20% of 54578 stations (= 10916).

As of today, those 20% generated 1647553 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...)