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+	56402	-
100+	7466	-
200+	2752	-
300+	1363	-
400+	823	-
500+	466	-
600+	328	-
700+	220	-
800+	161	-
900+	80	-
1000+	90	-
1100+	53	-
1200+	54	-
1300+	29	I5EFO JJ3KTW JH5UVK DF4XX EA6BB KB1CL W4ELP K4BAI NA5G RU3X GW0ADC WA9VEE EA8DHV HA5AEK SP2FAP AK4JK N7ET F6HK EA6NB DL3YEE F5FAB/QRP 7N3ORC K4IBZ I4CKC DK2FE AA3B BG7SSK JN78SB K5LN DL6KVA
1400+	32	VE3KZ KP4TF KB4JR OY1CT K4UX IK0FNH G4HOM NN0D YL3CW I0YQX KQ4CW KC2SIZ SM6CPY LX0FOUR KA6IOM N4QA K3LU RX6MY W9IK N7ET/DU7 LZ3QE F5RIJ PA5XM YT5FD W8KR OK1IF I3JUK IK5ZWU IZ5BBS DS5USH DG2FDD I5EFO
1500+	14	UT5XS SV2BBK YL2AG IK7OFI DL2HRF DL1SDZ IK6JOT W1EAT OK1CF S57V K3LR NI4E G4PVM IT9QAU
1600+	21	DL7JMJ DL5FCZ UR3QX IT9ATQ/B 4O4T W5ZO CT1ZQ NY2PO IK0IXI DJ1YFK UT5NR SM6CWK NR4A LA8IG Z33A F8DGY SM2FIJ DL2DX WB6ZFG CL3OR YL3AJT
1700+	9	W4MQC WB4AEG OK1HB ON4ADI DJ6IH IW9HKM SM6OID JA1GZV W4CI
1800+	12	S52OW SM5COP SP3CW DL2IAD CM6SQ YU7QF 9A1CMS/B DK9PY VE3BXG G3XIZ LZ1QI G0GKH
1900+	6	VE1EX G4IWO LZ7DL DL7VEA SQ6JAN DK7AK
2000+	5	K5LY BG7IDX RK4CT F5PLC IK3VUT
2100+	4	DL3NAA DK1WI F6HKA W8KJP
2200+	7	WB0B OZ2A JF6DMT IZ3SOI K4YFH K5VR AE5ZH
2300+	2	LY2PX IZ2MGN
2400+	6	HB9DAX DO4DXA ON7PQ DK5CCA LZ2PP DM2DZM
2500+	3	SP95IARU LA1MFA LB6GG
2600+	2	DK4AN DK8IT
2700+	2	SM5IMO 9A2AJ
2800+	1	F5IN
2900+	3	DM2BRF PY1ZB OV1CDX
3000+	1	N4OW
3200+	2	PY2UDB F4GFT
3400+	3	DK5JPL IK5VLL DL5UZ
3600+	1	AL7JK
3700+	2	V31MA S53RA
3800+	1	GW4OKT
4200+	1	DM6EE
4800+	1	IU0HMB
4900+	1	VE3NFN
5300+	1	DL5YAD
5500+	1	W5BIB
5900+	1	N3HI
8200+	1	DJ6ZM
8500+	1	WR5U

Unique active calls: 70434. 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: 5787061 from 70434 individual calls.

In order to fulfil the rule, 80% of 5787061 hours (= 4629649h) would have to be produced by 20% of 70434 stations (= 14087).

As of today, those 20% generated 1806816 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...)