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+	51340	-
100+	6222	-
200+	2261	-
300+	1094	-
400+	548	-
500+	371	-
600+	226	-
700+	156	-
800+	117	-
900+	88	-
1000+	52	-
1100+	27	HA8AU G4XRV BA6JW OY1CT YL3AJT DL5YM DL5CL SP1JPM IZ2MGN IZ2QXG DL4CF JA7BXS K2OO BH4EEL K3WW RW3WP 9G2HO JA6HHI ON7PQ F5MA AK4JA EA6NB KD8ZM W9ZN I1MMR JH8RJS WA9V
1200+	33	GD0OUD K4IBZ US7WA WB4AEG G4IWO DL2HRF JA7BSF UR3QX K5LN I1OXO N4QA NI4E IK0YVV G4AWW G3XIZ LZ1QI DL5FCZ F6HK NM1I AA3B IZ4GSC LU4XAP EW7LO NV3N OK1IF UT7LW EU8F RU3ZL JM7OLW DL9DBI N8AI F6IJU DK5CCA
1300+	16	JH7IXX SM2FIJ DK2FE LA2HFA KA6IOM DO1RTH IT9QAU RK3ER WB6ZFG WB7UBC IW9HKM G4ZXN DJ1YFK DL2DX W7D W7AIT
1400+	16	HA5AEK SM5COP K4YFH K7FD YL2AG NA5G EW1CY IS0ESG DJ6IH WA9VEE JA9LNZ IK0IXI KB1CL G4LNA RW7F R1BFL
1500+	9	F8DGY G0GKH F5PLC N4PG SV2BBK VE3BXG UR5BIZ OK1HB KW7D
1600+	10	AE5ZH EB4IC AL7JK W4CI KB4JR W7RF W4MQC UA1AJ DK7AK N5PHT
1700+	8	SQ6LDP UN7NFD US5XD SM6OID S59NS IN3GYO JH5UVK LY2PX
1800+	7	S59N VE2PID JF6DMT IU0JFZ IZ0XZD DM2DZM HB9DAX
1900+	8	V31MA IZ3SOI DD5XX KP4TF DM2BRF DL2IAD F6HKA SP9WZJ
2000+	3	RK4CT DL3NAA SM5IMO
2100+	2	G4PVM RU3X
2200+	3	LA1MFA YO4VM LZ7DL
2300+	3	DK1WI OK2RZ W8KR
2400+	1	Z33A
2500+	4	OK1LW N3HI YU7QF UT5NR
2600+	2	DK8IT DM0R
2700+	1	ON4ADI
2800+	2	F4GFT F5IN
2900+	3	IU0HMB DK4AN SQ6JAN
3100+	1	OV1CDX
3200+	2	DL5UZ EA1XN
3500+	1	K5LY
3700+	3	W5ZO DJ6ZM VE3NFN
4000+	1	DL5YAD
4100+	2	GW4OKT R7NO
4200+	2	G4RMV DK5JPL
6700+	1	WR5U

Unique active calls: 62646. 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: 4683740 from 62646 individual calls.

In order to fulfil the rule, 80% of 4683740 hours (= 3746992h) would have to be produced by 20% of 62646 stations (= 12529).

As of today, those 20% generated 1527711 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...)