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+	69929	-
100+	7712	-
200+	2747	-
300+	1339	-
400+	726	-
500+	448	-
600+	282	-
700+	202	-
800+	136	-
900+	86	-
1000+	60	-
1100+	53	-
1200+	34	JA1SJR N1MX JL1TQV I1GIS F6IVT DL3AZ DL5XL JS1DEH OH3GD DH9BAJ K9UIY EA5C IT9QAU UT7LW ZA1RR AI5IN UY7LA KR2Q KC7NBM JJ1FXF NR4A WS1L PY2OA DL2DX KD3KO SA6AUT F5MAI G4PVM IT9DNW K0HNL OK2BEI F4JLJ JL1UCH W5WTH
1300+	23	IW9HKM IN3KLQ JA0IKP JA1IAZ LZ2PP DJ3GS VE6SYC DM2BRF KC2SIZ SM5COP JS2OVO YT3T G0TMX WB0RLJ K4IBZ JK1VRF LZ1FAX SQ6JAN PY2XL F4GOU JM7OLW LZ1YP W3RJ
1400+	8	LU4JJ LZ7DL IZ5BBS KO5Q NE5A EI3LG M0PKD SP3UQW
1500+	17	LZ3QE W8BJO HA6NL NA2DX JA8TWF/1 LY2PX RX6MY F4IGG JA5EWQ IZ3SOI K3XR G0GKH OK1IF W8XW OK1CF I1YRL JF6DMT
1600+	9	K5LY KI4DEF W4CI W8FJ DF9II WB6ZFG G4HOM PY2AAM IK3/UY7LA
1700+	8	YO9KWC HB9DAX SP3CW W4MQC DK7AK VU2TMP VE3OZO SP1JPM
1800+	9	WB5N PY2XW NN0D EA4JI SM6OID UX0DA CT1BMW EA6EJ OE9SBD
1900+	3	WB6CXC HA5AEK IK5VLL
2000+	4	JJ0TJS EE5EE G3XIZ DK1WI
2100+	4	OY1CT IU0HMB UR3QX W1AW
2200+	1	OK1LW
2300+	2	DL3EL EA3CC
2400+	2	K5VR OV1CDX
2500+	3	DM2DZM VU2JCD K4UX
2600+	3	LZ3AN WA8VTD CT1GFK
2700+	2	N8TGQ SM5IMO
2800+	2	F5IN N9QU
2900+	2	DK9PY WZ2J
3000+	1	EA1EYL
3100+	5	WX7V YB1JCD DK4AN PY2UDB DJ6ZM
3200+	1	JA1GZV
3300+	1	RU0LL
3400+	2	DK8IT PA5XM
3500+	2	JR3OYH GW4OKT
3600+	1	KY4GS
3700+	1	DL6AAF
4000+	3	WB4AEG G5VZ IT9JLX
4200+	1	DM5EA
4300+	1	JR6JGB DF6YT
4400+	4	VE3NFN W5BIB DL5YAD JR6JGB
4800+	1	ON7PQ
5000+	1	WR5U
5200+	1	YO9CMC
5600+	1	DK1VD
5800+	1	DK5JPL
6100+	1	KA2QPG
6200+	1	JH6LDY
6400+	1	DF2JP
6900+	1	DL8NBM
8400+	1	YO4GOU
8700+	1	YO4BEX

Unique active calls: 83890. 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: 5995958 from 83890 individual calls.

In order to fulfil the rule, 80% of 5995958 hours (= 4796766h) would have to be produced by 20% of 83890 stations (= 16778).

As of today, those 20% generated 1939088 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...)