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+	68200	-
100+	7504	-
200+	2701	-
300+	1245	-
400+	720	-
500+	413	-
600+	263	-
700+	177	-
800+	133	-
900+	93	-
1000+	72	-
1100+	45	-
1200+	22	M5IMO N3TWX T4EI R1NA K5ISS W8XW OS5Z WB0RLJ DL2HRF JA0IKP HA5AEK KC8TQP HS0EDP EA1FCL I1GIS UG4A DK5LN LZ1QI W8XAL IK7FPU ZA1RR VK2ARZ
1300+	19	F4IGG PA3AAV HA6NL M0LRQ JA5EWQ EA7BEZ SM5COP SA6AUT WD9DWE ZA1EM KB8UGP R8MC K4MW IN3KLQ PY2AAM OK2BEI F5POJ IK3/UY7LA N4TTU
1400+	20	CT1BMW AI5IN AB4I W4MQC IK6JFF JJ0TJS KH6DL W8FJ KC7NBM PY2XL IU0BNG DF9II DL3AZ GW4OKT OE9SBD JS2OVO G0GKH RX6MY G3XIZ SO9PC
1500+	10	DJ4GX SM2ELN SP6CW VE3OZO K4U EU4E LZ2PP W3RJ JN1RKE K4IBZ
1600+	12	NN0D HB9DAX LY2PX W8BJO SO5CW IT9QAU DM2BRF JF6DMT NE5A EA6EJ G4HOM JM7OLW
1700+	5	IZ5BBS SM5HQN DK1WI EE5EE W4CI
1800+	9	SM6OID M0PKD IK5VLL R1OA G4PVM BG2TFW IW9HKM OK1CF WS1L
1900+	5	EA4JI K5VR DK1VD F5IN WP3Y
2000+	9	JM1IKW AA7FV UR3QX R3ZBI F5PLC F8BCU UX0DA LU4JJ YO9KWC
2100+	1	DL3EL
2200+	1	OV1CDX
2300+	3	DK9PY DK7AK WX7V
2400+	3	VU2JCD DM2DZM DJ6ZM
2500+	1	OY1CT OH3GD
2600+	4	DK4AN EA1EYL K4UX OY1CT
2700+	2	LZ3AN PY2VA
2800+	4	G5VZ WB5N W1AW EA3CC
2900+	3	WZ2J IN3TWX SM5IMO
3000+	1	OK1LW
3100+	4	ON7PQ WA8VTD N9QU KY4GS
3200+	3	CT1GFK PY2UDB DK8IT
3300+	2	PY2XW PA5XM
3700+	1	JA1GZV
3800+	1	IT9JLX
3900+	2	N8TGQ CT1EXR
4000+	1	DM5EA
4100+	1	VE3NFN
4200+	1	JR3OYH
4400+	2	DL5YAD DF6YT
4600+	1	DL6AAF
5300+	2	JR6JGB WB4AEG
5400+	1	YO9CMC
5900+	1	DK5JPL
6100+	2	JH6LDY KA2QPG
7000+	1	DL8NBM
7500+	1	DF2JP
8600+	2	YO4BEX YO4GOU

Unique active calls: 81729. 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: 5806907 from 81729 individual calls.

In order to fulfil the rule, 80% of 5806907 hours (= 4645526h) would have to be produced by 20% of 81729 stations (= 16346).

As of today, those 20% generated 1877266 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...)