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+	69728	-
100+	7570	-
200+	2657	-
300+	1360	-
400+	715	-
500+	417	-
600+	250	-
700+	199	-
800+	134	-
900+	92	-
1000+	74	-
1100+	37	-
1200+	25	WB0RLJ F4AGV K5ISS JA5EWQ JR3OQJ SA6AUT VU2OR IK6JFF RA8AT F5POJ JA0IKP I1GIS VK2ARZ IZ3ZVO SM7FCU DL8KUD N0AMY/B DL7DAX ZA1EM K4RUM JS6UWQ NI4E N4TTU W8XAL OK2BEI
1300+	20	W8FJ W4MQC G0GKH IT9DNW DO1EK EA1FCL DJ3GS BG2TFW PA3AAV JS2OVO KC8TQP OS5Z KC7NBM LU1QAK K4IBZ W3RJ IN3KLQ OY1C IK3/UY7LA JA0KSB
1400+	14	LZ2PP PY2XL AI5IN G3XIZ OE9SBD DL3AZ SM5COP CT1BMW WC1D DL2HRF HA6NL SO9PC UG4A DF9II
1500+	14	AA2AN/B DM2BRF JJ0TJS EU4E K5VR DJ4GX KB8UGP AB4I M5IMO RX6MY M0LRQ PY2VA T4EI HS0EDP
1600+	15	JF6DMT DK1VD K4U JM7OLW K4MW G4HOM W8BJO W4CI IT9QAU N3TWX R8MC NE5A DK1WI SM2ELN JN1RKE
1700+	7	IW9HKM LY2PX SO5CW EA6EJ HB9DAX VE3OZO NN0D
1800+	5	WP3Y SM6OID IZ5BBS EE5EE IK5VLL
1900+	5	F5PLC DL3EL YO9KWC EA4JI SP6CW
2000+	5	R3ZBI WX7V OK1CF M0PKD LU4JJ
2100+	4	WS1L F5IN G4PVM R1OA
2200+	4	UR3QX N9QU AA7FV UX0DA
2300+	3	DM2DZM DJ6ZM OV1CDX
2400+	1	JM1IKW
2500+	3	ON7PQ G5VZ DK9PY
2600+	4	EA1EYL DK4AN DK7AK K4UX
2700+	2	OH3GD WZ2J
2800+	2	PY2UDB PY2XW
2900+	2	EA3CC OY1CT
3000+	2	W1AW KY4GS
3100+	5	WB5N SM5HQN CT1GFK LZ3AN OK1LW
3200+	2	DK8IT F8BCU
3300+	2	VU2JCD PA5XM
3400+	1	WA8VTD SM5IMO
3500+	2	IN3TWX WA8VTD
3600+	1	JR3OYH
3700+	2	JA1GZV IT9JLX
3900+	1	DM5EA
4100+	1	VE3NFN
4300+	1	DL5YAD
4400+	1	DF6YT
4600+	2	N8TGQ DL6AAF
5300+	3	WB4AEG YO9CMC JR6JGB
5800+	2	CT1EXR JH6LDY
5900+	1	KA2QPG
6100+	1	DK5JPL
7400+	1	DL8NBM
7700+	1	DF2JP
8600+	2	YO4BEX YO4GOU

Unique active calls: 83402. 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: 5911864 from 83402 individual calls.

In order to fulfil the rule, 80% of 5911864 hours (= 4729491h) would have to be produced by 20% of 83402 stations (= 16680).

As of today, those 20% generated 1910912 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...)