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+	42733	-
100+	6727	-
200+	2535	-
300+	1225	-
400+	707	-
500+	412	-
600+	294	-
700+	217	-
800+	112	-
900+	98	-
1000+	68	-
1100+	42	-
1200+	38	-
1300+	22	N5PHT S58MU RW3WP NA5G LZ2UR JH7IXX SP3CW G4LNA RW7F DL50NFA RK3ER DL2HRF PB7RS LZ1QI WB6ZFG BG6GQE WB4AEG 9Z4Y RM2D W7AIT K4UX KC3MIO
1400+	14	IS0ESG SM7ZDI IK0FNH HA2EOU DK7AK HA5AEK IK0IXI EU8F LY2PX KA6IOM JA3DLE/1 ON7PQ SM2FIJ DL5FCZ
1500+	19	VE2PID DJ1YFK IK0YVV OK1HB Z33A RU3X JH5UVK F8FAZ SM5COP OK2RZ DK2FE JA7BSF OY1CT IN3GYO F6HK G4ZXN VE3BXG DJ6IH 4O4T
1600+	17	IZ0XZD S59NS PY1ZB YL3AJT IW9HKM HB9AW EA8DHV IZ2MGN SP9WZJ DL2DX SM6OID SV2BBK KD8JDC IT9QAU DM0R K2KRG KB1CL
1700+	8	W4CI IU0JFZ RK4CT JF6DMT Z39M KB4JR N4OW EW1CY
1800+	13	G0GKH DL2IAD YO4VM N2KW KP4TF S59N W4MQC G4PVM G4IWO R7NO WB0B UN7NFD V31MA
1900+	6	N4QA HB9CVN LZ2PP DK5CCA US5XD OZ2A
2000+	3	DM2DZM F5PLC DD5XX
2100+	4	PA2F LB6GG G4AWW IZ3SOI
2200+	1	YU7QF
2300+	2	DK1WI HB9DAX
2400+	6	DL3NAA W5BIB LZ7DL SM5IMO 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 F4GFT SQ6LDP
3300+	1	DL5UZ
3800+	1	G4RMV
3900+	2	W5ZO DM2BRF
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: 55351. 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: 5014272 from 55351 individual calls.

In order to fulfil the rule, 80% of 5014272 hours (= 4011418h) would have to be produced by 20% of 55351 stations (= 11070).

As of today, those 20% generated 1654753 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...)