PC9K — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Netherlands Most frequent locator attributed to this token: JO22

Receiver-side FT8 activity involving PC9K, decoded by SO8OO in southeastern Poland. 2,822 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 56 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-09.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 2,822 FT8 messages attributed to PC9K as the transmitting token by decoded message structure across 56 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (45%), followed by 10 m (42%) and 40 m (8%). Most decodes (82%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (62%); the estimated median was -7 dB.

Overview

2,822

Messages attributed

UTC dates decoded

322

Active 15-min windows

-7 dB

Estimated median S/N

Bands

60m · 160 40m · 217 20m · 1,267 10m · 1,178

First attributed message: 2026-06-06
Last attributed message: 2026-09-09 19:17 UTC

Observed FT8 message patterns

Attributed sample: 2,822 messages
Active dates: 56 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -14 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 162, moderate (-15 to -9 dB) 910, strong (≥ -8 dB) 1,750.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with PC9K in decoded directed-looking exchanges:

F4BYA · France ×3 SO5WD · Poland ×2 F1PBZ · France ×2 LZ2RR · Bulgaria ×2 DL7ARV · Fed. Rep. of Germany ×2 IU4DTV · Italy ×2 LZ3CB · Bulgaria ×2 JA6TXU · Japan ×2 2E0PYG · England ×2 HA5AZD · Hungary ×2 MM0JTV · Scotland ×2 IZ0EAC · Italy ×2

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to PC9K

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: JO22 · 1,956 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,201 km (approx.)
Last such locator decoded: 2026-09-09 19:17 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTC	Band	PC9K S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-09 19:11	60m	-13 / -	ES4RTK	- / -	7	Partial capture
09-03 19:15	80m	- / -18	IQ4JO	+3 / -	3	✓ Closing fragment
09-03 19:02	80m	- / -12	ON6LR	-18 / -	2	✓ Closing fragment
09-03 18:38	80m	- / -14	PE2JMR	-4 / -	2	✓ Closing fragment
09-03 18:36	80m	- / -19	DD0AM	-10 / -	2	✓ Closing fragment
09-03 18:02	80m	- / +2	PA3EVY	-8 / -	2	✓ Closing fragment
09-02 20:06	60m	- / -12	DM3OA	-4 / -	3	Partial capture
08-31 20:09	20m	-4 / -	IZ0EAC	-10 / -3	3	✓ Closing observed
08-31 19:57	20m	-16 / -	EA8AT	-4 / -13	4	✓ Closing observed
08-31 19:40	20m	- / -7	M7SZB	-4 / -	2	Partial capture
08-31 14:13	20m	-8 / -	MI0UFT	- / -11	3	✓ Closing fragment
08-31 14:08	20m	-5 / -	F5IXN	+4 / -23	9	Partial capture
08-31 14:07	20m	-6 / -	CT2KCK	- / -5	2	✓ Closing fragment
08-31 14:02	20m	-2 / -	EA7KLL	- / -	2	Partial capture
08-30 20:31	20m	- / -8	TA4DX	+4 / -	2	✓ Closing fragment
08-30 20:28	40m	-4 / -	SV9QWC	- / -	2	Partial capture
08-30 20:26	40m	- / -9	IU4DTV	-16 / -	2	✓ Closing fragment
08-30 20:25	40m	-5 / -15	SN1A	-8 / -5	4	✓ Full exchange observed
08-30 20:22	40m	-7 / -	S57MG	-3 / -12	2	Partial capture
08-30 20:21	40m	-2 / -12	RD7O	+4 / -15	8	✓ Full exchange observed
08-30 20:20	40m	- / -11	S56UVB	+3 / -	3	✓ Closing fragment
08-30 20:16	40m	- / -15	RX9ABI	-15 / -	2	✓ Closing fragment
08-30 20:07	40m	-4 / -	EA3ISZ	- / -21	4	Partial capture
08-30 20:01	40m	+4 / -	ON4KDT	- / -	3	Partial capture
08-30 19:57	40m	- / -	PC2J	+6 / -	3	✓ Closing fragment
08-28 20:58	60m	-14 / -22	EA5XA	-9 / -11	9	✓ Full exchange observed
08-28 20:53	60m	- / -	SP5PW	-9 / -	4	Partial capture
08-28 20:53	60m	- / -	SP9MRP	-3 / -	4	Partial capture
08-28 20:52	60m	-15 / -4	DL7ARV	-2 / -9	5	✓ Full exchange observed
08-28 20:50	60m	-14 / 0	LB9RE	-8 / -4	5	✓ Full exchange observed
08-28 20:47	60m	-16 / -	PI80LDN	- / 0	3	Partial capture
08-28 20:46	60m	-15 / +6	GW0KQX	-12 / 0	3	✓ Full exchange observed
08-28 20:43	60m	-16 / -	IU5KZF	- / -	3	Partial capture
08-28 20:40	60m	-15 / -	AO5FSB	- / -	4	Partial capture
08-28 20:38	60m	-13 / -	F5PEG	-20 / -3	3	✓ Closing observed
08-28 20:31	60m	-13 / -	AO5FSB	- / -	3	Partial capture
08-28 20:29	60m	- / -9	OE1TKS	-8 / -	2	✓ Closing fragment
08-28 20:23	60m	-13 / -	OE1TKS	- / -	3	Partial capture
08-28 20:18	60m	-16 / -13	DL7UKM	-4 / -4	7	Partial capture
08-28 20:14	60m	-6 / -	AO5FSB	- / -	3	Partial capture
08-28 20:13	60m	-6 / -15	YO9FDG	0 / -12	5	✓ Full exchange observed
08-28 20:11	60m	-11 / -6	F5OZC	-2 / -5	5	✓ Full exchange observed
08-28 20:09	60m	-12 / -10	SQ1EIC	+7 / -7	6	✓ Full exchange observed
08-28 18:49	20m	+12 / -	EX7DY	- / -	6	Partial capture
08-28 18:48	20m	+16 / -	N4YSA	- / -	2	Partial capture
08-28 18:47	20m	+15 / -	BG0FQU	- / -	3	Partial capture
08-28 18:46	20m	+14 / -	TK/F6FDY	- / -	2	Partial capture
08-28 18:43	20m	+14 / -	EA9QD	- / -13	3	✓ Closing fragment
08-28 18:39	20m	+17 / -	RW6PA	- / -	7	Partial capture
08-28 18:34	20m	+16 / -	EX7DY	- / -	10	Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

60m

UTC    dB Audio  Message
210345 -16  911  CQ PC9K JO22                          a1 (x5)
200645  -5 1973  PC9K DM3OA -12 (x3)
191145 -16 2320  ES4RTK PC9K JO22 (x7)

80m

UTC    dB Audio  Message
180200  -9 2499  PC9K PA3EVY +02 (x2)
183600 -11  458  PC9K DD0AM -19 (x2)
183830  -6  792  PC9K PE2JMR -14 (x2)
184130  +0 2830  PC9K DM5UE RR73
185700  -6 1454  PC9K OE3SSV RR73
190200 -19 2193  PC9K ON6LR -12 (x2)
191545  +0 2243  PC9K IQ4JO JN63 (x3)

20m

UTC    dB Audio  Message
200300 -10 2632  CQ PC9K JO22 (x6)
200630  -7 2632  IV3XHF PC9K -10
200800  -8 2633  CQ PC9K JO22 (x3)
200930  -5 2632  IZ0EAC PC9K R-03
200945 -10 1331  PC9K IZ0EAC RR73
201000  -4 2632  IZ0EAC PC9K 73
201030  -5 2632  CQ PC9K JO22 (x2)

40m

UTC    dB Audio  Message
202245  +3 2583  PC9K RD7O KN98 (x2)
202330  -4 2264  RD7O PC9K -15
202345  +1 2583  PC9K RD7O R-12
202400  +1 2263  RD7O PC9K RR73
202415  +5 2583  PC9K RD7O 73
202500  -7 2263  SN1A PC9K -05
202515 -10 1634  PC9K SN1A R-15
202530  -3 2263  SN1A PC9K RR73
202545  -6 1634  PC9K SN1A 73
202600  -6 2264  CQ PC9K JO22                          a1
202615 -16 2264  PC9K IU4DTV -09 (x2)
202800  -4 2263  SV9QWC PC9K JO22 (x2)

10m

UTC    dB Audio  Message
113500  -5 2855  RY7G PC9K JO22 (x2)
113700  -4 2855  CQ PC9K JO22 (x11)
114830  -4 2855  OZ1LGJ PC9K RR73
120130  -6 2855  CQ PC9K JO22

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

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