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+	68194	-
100+	7512	-
200+	2706	-
300+	1245	-
400+	722	-
500+	412	-
600+	263	-
700+	178	-
800+	132	-
900+	95	-
1000+	73	-
1100+	43	-
1200+	22	T4EI IK3/UY7LA N4TTU N3TWX R1NA K5ISS W8XW OS5Z WB0RLJ JA0IKP HS0EDP DL2HRF HA5AEK KC8TQP EA1FCL I1GIS UG4A W8XAL DK5LN LZ1QI IK7FPU ZA1RR OY1C
1300+	19	F4IGG PA3AAV HA6NL M0LRQ EA7BEZ SA6AUT SM5COP JA5EWQ ZA1EM KB8UGP WD9DWE R8MC K4MW IN3KLQ OK2BEI PY2AAM F5POJ M5IMO T4EI
1400+	19	AI5IN CT1BMW W4MQC IK6JFF JJ0TJS W8FJ KC7NBM PY2XL KH6DL DL3AZ DF9II JS2OVO IU0BNG OE9SBD G0GKH RX6MY GW4OKT SO9PC G3XIZ
1500+	11	DJ4GX SP6CW SM2ELN K4U VE3OZO EU4E LZ2PP JN1RKE K4IBZ W3RJ AB4I
1600+	12	NN0D HB9DAX LY2PX W8BJO SO5CW IT9QAU JF6DMT NE5A DM2BRF EA6EJ G4HOM JM7OLW
1700+	5	IZ5BBS SM5HQN DK1WI EE5EE W4CI
1800+	9	SM6OID R1OA M0PKD IK5VLL G4PVM BG2TFW IW9HKM OK1CF WS1L
1900+	5	EA4JI K5VR DK1VD F5IN WP3Y
2000+	8	AA7FV UR3QX F8BCU F5PLC R3ZBI UX0DA LU4JJ YO9KWC
2100+	2	DL3EL JM1IKW
2200+	1	OV1CDX
2300+	3	DK9PY DK7AK WX7V
2400+	3	VU2JCD DM2DZM DJ6ZM
2500+	1	OH3GD
2600+	4	DK4AN EA1EYL K4UX OY1CT
2700+	1	EA3CC LZ3AN PY2VA
2800+	5	G5VZ WB5N W1AW EA3CC LZ3AN
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
6900+	1	DL8NBM
7500+	1	DF2JP
8600+	2	YO4BEX YO4GOU

Unique active calls: 81738. 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: 5808601 from 81738 individual calls.

In order to fulfil the rule, 80% of 5808601 hours (= 4646881h) would have to be produced by 20% of 81738 stations (= 16348).

As of today, those 20% generated 1877973 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...)