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+	47819	-
100+	6870	-
200+	2531	-
300+	1261	-
400+	721	-
500+	428	-
600+	298	-
700+	212	-
800+	123	-
900+	98	-
1000+	70	-
1100+	48	-
1200+	32	DL5CL LZ3QE M0TDW 9Z4Y K4BAI NM1I AA3B RK3ER IZ2XAO YL3CW YT5FD F5RIJ K7FD SP95IARU IZ5BBS IK5ZWU K4IBZ KC3MIO K3LR N5PHT IK5VLL BH4EEL K3LU AK4JA DL7JMJ OH6KD GD0OUD KD9CK K5LN NI4E 4L8A N1GKE W8KJP
1300+	33	BH4EHU LZ1QI 9A2AJ DL2HRF K4UX IN3GYO RD7D S59NS RW7F WB4AEG G4LNA W7AIT BG6GQE PA5XM UT5XS IK6JOT SM7ZDI AC2K IS0ESG EA6NB BG7IDX NA5G RM2D S58MU SM6PDS HA6OD DL5YM WB6ZFG OH7QR VE2PID I1YRL NN0D DL5CL
1400+	15	LY2PX KA6IOM SM6OID IK3VUT JA3DLE/1 DK7AK HA5AEK G4ZXN EU8F DL5FCZ RU3X JH7IXX PB7RS IK0IXI SP9WZJ
1500+	26	4O4T HA2EOU JA7BSF KB1CL EW1CY SM5COP SP3CW ED1YCA IT9QAU SV2BBK K2KRG IK0YVV KD8JDC Z33A VE3BXG F6HK ON7PQ DK2FE EA8DHV JH5UVK DJ6IH OK2RZ RW3WP S59N OY1CT SM2FIJ
1600+	9	KB4JR IZ0XZD US5XD DJ1YFK M5TXJ DL2DX OK1HB IK0FNH IW9HKM
1700+	4	YL3AJT IZ2MGN F8FAZ UN7NFD
1800+	12	G4IWO N2KW W4MQC KP4TF G0GKH DD5XX R7NO IU0JFZ JF6DMT RK4CT YO4VM W4CI
1900+	7	PY1ZB Z39M WB0B HB9CVN G4AWW G4PVM DL2IAD
2000+	4	N4QA HB9AW V31MA PA2F
2100+	7	SM5IMO OZ2A IZ3SOI DK5CCA N4OW F5PLC YU7QF
2200+	2	DM2DZM LZ2PP
2300+	3	HB9DAX DK1WI UT5NR
2400+	4	DL3NAA LZ7DL F6HKA LB6GG
2500+	1	ON4ADI
2600+	2	F5IN SQ6JAN
2700+	3	DK8IT LA1MFA K4YFH
2800+	2	DK4AN W8KR
2900+	3	OV1CDX OK1LW SQ6LDP
3000+	1	K5LY
3100+	2	K7NWS W5BIB
3200+	1	AE5ZH
3300+	2	G4RMV F4GFT
3400+	1	DL5UZ
3500+	1	W5ZO
3800+	1	GW4OKT
4000+	1	IU0HMB
4100+	1	DK5JPL
4200+	1	AL7JK
4400+	1	DM2BRF
4600+	1	VE3NFN
4800+	1	DL5YAD
5100+	1	N3HI
7200+	1	DJ6ZM
7800+	1	WR5U

Unique active calls: 60666. 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: 5216683 from 60666 individual calls.

In order to fulfil the rule, 80% of 5216683 hours (= 4173346h) would have to be produced by 20% of 60666 stations (= 12133).

As of today, those 20% generated 1691714 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...)