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+	70833	-
100+	7693	-
200+	2819	-
300+	1355	-
400+	737	-
500+	433	-
600+	290	-
700+	215	-
800+	130	-
900+	94	-
1000+	62	-
1100+	45	-
1200+	39	-
1300+	23	I1YRL SM5COP IK6JFF F5MAI LU4JJ JA1SJR IN3KLQ YT3T SP3UQW LZ2PP AI5IN JS2OVO K9UIY JL1TQV SQ6JAN WS1L OH3GD NR4A IT9DNW NE5A KG5SSB N1MX W4CMG
1400+	10	WB5N JA1IAZ IK3/UY7LA JA0IKP EI3LG PY2AAM JS1DEH G0TMX WB0RLJ IW9HKM
1500+	18	W8BJO DK7AK OK1IF HA6NL WB6ZFG OK1CF G4PVM KO5Q JF6DMT G4HOM G0GKH LZ3QE KD3KO F4IGG LZ7DL M0PKD W8XW PY2OA
1600+	11	VU2TMP G3XIZ JA5EWQ W4CI K5LY IZ5BBS W8FJ DF9II PY2XW IZ3SOI RX6MY
1700+	12	SP1JPM SM6OID EA6EJ OY1CT K3XR UX0DA NA2DX HA5AEK VE3OZO JA8TWF/1 KI4DEF W4MQC
1800+	3	EA4JI JK1VRF SP3CW
1900+	7	DK1WI IK5VLL CT1BMW LY2PX WB6CXC NN0D OE9SBD
2000+	3	W1AW HB9DAX YO9KWC
2100+	2	JJ0TJS VE6SYC
2200+	5	OK1LW EA3CC WZ2J CT1GFK EE5EE
2300+	4	DL3EL UR3QX N8TGQ IU0HMB
2400+	3	RU0LL OV1CDX JN87FIT
2500+	3	K4UX WA8VTD LZ3AN
2600+	2	DM2DZM K5VR
2800+	2	WX7V F5IN
2900+	2	SM5IMO EA1EYL
3000+	3	DK9PY PY2UDB N9QU
3100+	2	DK4AN GW4OKT
3200+	1	VU2JCD
3300+	4	PA5XM DK8IT JA1GZV DJ6ZM
3500+	1	DL6AAF
3600+	2	KY4GS YB1JCD
3700+	1	WB4AEG
3800+	1	JR3OYH
4000+	1	G5VZ
4100+	1	IT9JLX
4200+	2	DM5EA DF6YT
4300+	2	JR6JGB DL5YAD
4500+	1	VE3NFN
4900+	1	ON7PQ
5100+	1	WR5U
5200+	1	YO9CMC
5500+	1	W5BIB
5700+	1	DK5JPL
6000+	1	KA2QPG
6100+	2	DK1VD JH6LDY
6400+	1	DF2JP
7200+	1	DL8NBM
8300+	1	YO4GOU
8700+	1	YO4BEX

Unique active calls: 84889. 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: 6073121 from 84889 individual calls.

In order to fulfil the rule, 80% of 6073121 hours (= 4858497h) would have to be produced by 20% of 84889 stations (= 16978).

As of today, those 20% generated 1961122 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...)