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+	56277	-
100+	7553	-
200+	2750	-
300+	1413	-
400+	825	-
500+	483	-
600+	302	-
700+	246	-
800+	160	-
900+	100	-
1000+	80	-
1100+	67	-
1200+	48	-
1300+	30	DF4XX JN78SB OK1CF N7ET/DU7 YL2AG OK1IF DL5CL DL1SDZ K5LN JA3DLE/1 EA6NB LZ3QE JJ3KTW NM1I BH4EHU W2ITT W4ELP DL3YEE JA7BSF NR4A PI75ZUT HA2EOU DL5YM HA5AEK KC2SIZ DG2FDD UN7NFD WA9VEE EA6BB OH7QR
1400+	31	DJ6IH F8DGY F6HK M0TDW IK5ZWU K3LR SM6CPY G4HOM CL3OR YT5FD IK0YVV RX6MY K4BAI JH5UVK PA2F VE3KZ KA6IOM DL7VEA W1EAT IU0JFZ DK2FE BG6GQE NN0D IK6JOT W9IK IZ5BBS PA5XM RM2D I0YQX EA8DHV NI4E EU8F
1500+	17	YL3CW DL2HRF JA1GZV CT1ZQ G4PVM K4UX IT9QAU UT5XS IK0IXI CM6SQ SM2FIJ IK7OFI OY1CT KB4JR F5RIJ GW0ADC DJ6IH
1600+	14	WB4AEG IW9HKM YL3AJT DJ1YFK DL7JMJ NY2PO S52OW KB1CL G3XIZ UR3QX LA8IG WB6ZFG SV2BBK DL5FCZ
1700+	13	N4QA VE1EX SM6OID 4O4T W4CI UT5NR LZ1QI OK1HB IK0FNH KP4TF SM6CWK W8KR DL2DX
1800+	7	SM5COP W4MQC K5VR W5ZO DK7AK Z33A VE3BXG
1900+	6	SQ6JAN YU7QF ON4ADI DL2IAD RK4CT SP3CW
2000+	4	F5PLC LY2PX W8KJP G0GKH
2100+	4	IZ3SOI G4IWO LZ7DL BG7IDX
2200+	5	ON7PQ WB0B DO4DXA DK1WI IK3VUT
2300+	6	OZ2A 9A2AJ DL3NAA F6HKA IZ2MGN JF6DMT
2400+	2	DM2DZM K5LY
2500+	6	SM5IMO HB9DAX LZ2PP LA1MFA LB6GG K4YFH
2600+	2	DK8IT DK5CCA
2700+	2	DK4AN SP95IARU
2800+	2	AE5ZH F5IN
2900+	2	PY2UDB OV1CDX
3000+	1	S53RA
3200+	3	DL5UZ IK5VLL PY1ZB
3300+	2	N4OW DM6EE
3500+	3	F4GFT DM2BRF V31MA
3600+	1	AL7JK
3700+	1	DK5JPL
3800+	1	GW4OKT
4600+	1	IU0HMB
4900+	1	VE3NFN
5200+	1	W5BIB
5300+	1	DL5YAD
5700+	1	N3HI
8000+	1	DJ6ZM
8300+	1	WR5U

Unique active calls: 70476. 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: 5837507 from 70476 individual calls.

In order to fulfil the rule, 80% of 5837507 hours (= 4670006h) would have to be produced by 20% of 70476 stations (= 14095).

As of today, those 20% generated 1824005 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...)