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+	67310	-
100+	7450	-
200+	2689	-
300+	1269	-
400+	680	-
500+	411	-
600+	262	-
700+	185	-
800+	119	-
900+	85	-
1000+	86	-
1100+	35	A4JI JK1XDX VU2SRT I1OXO K4MW DH9BAJ LZ7DL DL9DBI IK7FPU LA8IG F5EGOJ OS5Z VK2ARZ JS1DEH DL2HRF LZ3QE JS6UHQ/6 NR4A M5IMO SM6HCI DL2TT EA1FCL N3TWX AI5BE VU2OR K0HNL N1MX LZ1YP M0ASN IK1NAF SA2OLM F4GOU N2JPR HS0EDP T4EI K1SEI
1200+	25	WB0RLJ I1YRL K5ISS WB6ZFG EA7BEZ WD9DWE IK6JFF UG4A W8XAL I1GIS OK2BEI JA0IKP OK2IT M0LRQ IU0HMB EW1CY JL1TQV JA2MOG SP1JPM ZA1RR KC8TQP JJ1FXF EE5E K5LY A4JI
1300+	20	K5JJD SA6AUT DK5LN WR5U PA3AAV JA5EWQ EU4E SM5COP IK3/UY7LA SP6CW CT1BMW G0DJA KI4DEF AB4I F5POJ W8XW LZ1QI SO9PC ZA1EM IN3KLQ
1400+	19	F4IGG VE3OZO DL3AZ F8BCU HA6NL W8FJ G0GKH JS2OVO KC7NBM DF9II HA5AEK PY2AAM JJ0TJS R1NA JN1RKE AI5IN PY2XL SM2ELN RX6MY
1500+	12	WS1L F5PLC LY2PX JM7OLW LZ2PP JF6DMT G3XIZ K4IBZ SO5CW HB9DAX N4TTU K4U
1600+	14	DM2BRF IZ5BBS NN0D W3RJ G4HOM R1OA NE5A EA6EJ G4PVM W8BJO IU0BNG IT9QAU DJ4GX W4MQC
1700+	8	WP3Y KH6DL JM1IKW EE5EE OE9SBD OK1CF W4CI M0PKD
1800+	5	VU2JCD YO9KWC IK5VLL BG2TFW DK1WI
1900+	6	RU0LL LU4JJ UX0DA IW9HKM AA7FV SM6OID
2000+	3	R3ZBI EA4JI F5IN
2100+	4	GW4OKT OV1CDX K5VR UR3QX
2200+	1	DK1VD
2300+	3	OH3GD DL3EL DK7AK
2400+	1	DM2DZM
2500+	6	WX7V W1AW DK9PY OY1CT DJ6ZM IN3TWX
2600+	2	K4UX SM5IMO
2700+	5	DK4AN LZ3AN CT1EXR PY2VA EA1EYL
2800+	2	WB5N EA3CC
2900+	1	PY2XW
3000+	2	OK1LW WA8VTD
3100+	2	PA5XM WZ2J N9QU
3200+	4	G5VZ KY4GS DK8IT PA5XM
3300+	2	CT1GFK PY2UDB
3500+	1	ON7PQ
3600+	2	JA1GZV N8TGQ
3900+	1	IT9JLX
4000+	2	DM5EA VE3NFN
4100+	1	JR3OYH
4400+	1	DF6YT
4500+	1	DL5YAD
4600+	1	DL6AAF
5200+	1	JR6JGB
5300+	2	WB4AEG YO9CMC
5900+	1	DK5JPL
6100+	1	KA2QPG
6200+	1	JH6LDY
6800+	1	DL8NBM
7300+	1	DF2JP
8600+	2	YO4BEX YO4GOU

Unique active calls: 80748. 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: 5753125 from 80748 individual calls.

In order to fulfil the rule, 80% of 5753125 hours (= 4602500h) would have to be produced by 20% of 80748 stations (= 16150).

As of today, those 20% generated 1863239 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...)