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+	76285	-
100+	9308	-
200+	3431	-
300+	1365	-
400+	722	-
500+	427	-
600+	269	-
700+	162	-
800+	138	-
900+	75	-
1000+	59	-
1100+	31	HL2BM JH1MDJ JA1NUT EA3IAZ W9IK N7HRK/M UN7LDR E72MD DF4XX WD8MHT 9J2BO K2OO UR3QX I1MMR EA8AF DL7RYA K5LY W0ECS K5LN WB6ZFG UA0UZ VK2BJ F6CEL 4U1A KJ6CA DU3LA EW7LO DM2DZM N4OW RM7C VA3HP
1200+	35	F5UQE W4CI E77EA N4PAL F6IJU OH1FJ VU2GSM EA3KU KB1CL K0GUV A4MC EA6NB N4QR DL5ANT JE6GAN Z31JY UA3KW IZ4GSC LA8IG OK1HB PE3RKE YL2AG W6JL LZ7DL NM1I N1PVP SM3AVQ N6IET N0NBD HB9CCL JH8RJS YV5DRN W1AW K7DCG RK3ER
1300+	23	N4KS JH7IXX S01WS JA6HHI JA6GCE HB9AW DO1EK KA1FSX LY2PX G4SMN DK2FE 4Z5FW PA4ARP OZ4UN G7EOB K7FD KD8ZM PV8ADI S57V DL5FCZ N3QE AA4MC AK4JA
1400+	13	UR5BIZ UX5UW IZ5BBS DL2IAD DK5JPL EU8F AA3B G0GKH SM5COP KB4JR UN7NFD DJ6UX SV2BBK
1500+	11	ZA1EM G4PVM K4IBZ TA1PB OK1IF DL7RKK W9ZN WB7PMP EB4IC G4LNA W8KJP
1600+	13	F5NZY JH5UVK VE2PID F1DFF NA5G G4ZXN SP9WZJ VE7EDT N4QA M6MPC YR100R W6PU CO8LY
1700+	5	VE3NFN EW1CY LZ1QI K3WW W5ZO
1800+	5	IZ2QXG VE3BXG KP4TF YL3CW DL3NAA
1900+	3	OH6NPV IZ3SOI DM0E
2000+	3	GW4OKT DM2A F4GFT
2100+	5	N5PHT YO4VM LA1MFA W4MQC DK0MV
2200+	4	KW7D F6HKA RU3X W7D
2400+	4	DL5YAD DK8IT JF6DMT DK4AN
2500+	3	DL6UKW DK1WI OK2RZ
2600+	1	ON4ADI
2700+	1	F5IN
2900+	4	WR5U HB9DAX EI3KM SQ6JAN
3100+	1	OV1CDX
3400+	1	OK1LW

Unique active calls: 92407. 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: 6405946 from 92407 individual calls.

In order to fulfil the rule, 80% of 6405946 hours (= 5124757h) would have to be produced by 20% of 92407 stations (= 18481).

As of today, those 20% generated 2227452 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...)