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+	70670	-
100+	7696	-
200+	2812	-
300+	1334	-
400+	742	-
500+	428	-
600+	293	-
700+	216	-
800+	142	-
900+	83	-
1000+	60	-
1100+	45	-
1200+	38	-
1300+	25	IW9HKM I1YRL WB0RLJ G0TMX JS1DEH SM5COP SP3UQW F5MAI LZ2PP NE5A IN3KLQ JA1SJR NR4A YT3T JS2OVO SQ6JAN IT9DNW AI5IN JL1TQV DJ3GS WS1L KG5SSB K9UIY OH3GD IK6JFF
1400+	10	KD3KO M0PKD WB5N PY2OA IK3/UY7LA JA1IAZ JA0IKP PY2AAM EI3LG LU4JJ
1500+	14	WB6ZFG DK7AK IZ3SOI W8BJO G4HOM OK1IF OK1CF KO5Q G0GKH G4PVM LZ3QE JF6DMT F4IGG LZ7DL W8XW
1600+	13	VU2TMP JA8TWF/1 W4MQC PY2XW K5LY W4CI JA5EWQ W8FJ IZ5BBS DF9II RX6MY HA6NL WB6ZFG
1700+	12	EA6EJ HA5AEK SP1JPM SM6OID SP3CW G3XIZ JK1VRF K3XR NA2DX VE3OZO UX0DA KI4DEF
1800+	4	OE9SBD LY2PX EA4JI OY1CT
1900+	5	HB9DAX IK5VLL CT1BMW WB6CXC NN0D
2000+	4	W1AW YO9KWC VE6SYC DK1WI
2100+	2	EE5EE JJ0TJS
2200+	5	UR3QX CT1GFK OK1LW IU0HMB EA3CC
2300+	3	N8TGQ DL3EL WZ2J
2400+	1	OV1CDX
2500+	4	K4UX LZ3AN WA8VTD JN87FIT
2600+	3	DM2DZM K5VR RU0LL
2800+	1	F5IN
2900+	3	N9QU SM5IMO WX7V
3000+	3	DK9PY PY2UDB EA1EYL
3100+	3	GW4OKT DK4AN VU2JCD
3200+	1	DJ6ZM
3300+	2	DK8IT JA1GZV
3400+	1	PA5XM
3500+	2	DL6AAF YB1JCD
3600+	1	KY4GS
3700+	2	JR3OYH WB4AEG
4000+	1	G5VZ
4100+	1	IT9JLX
4200+	2	DM5EA DF6YT
4300+	2	JR6JGB DL5YAD
4500+	1	VE3NFN
4800+	1	ON7PQ
5100+	1	WR5U
5200+	1	YO9CMC
5400+	1	W5BIB
5700+	1	DK5JPL
6000+	2	KA2QPG DK1VD
6100+	1	JH6LDY
6400+	1	DF2JP
7200+	1	DL8NBM
8300+	1	YO4GOU
8700+	1	YO4BEX

Unique active calls: 84702. 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: 6055303 from 84702 individual calls.

In order to fulfil the rule, 80% of 6055303 hours (= 4844242h) would have to be produced by 20% of 84702 stations (= 16940).

As of today, those 20% generated 1956105 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...)